+++ /dev/null
-charger-manager bindings
-~~~~~~~~~~~~~~~~~~~~~~~~
-
-Required properties :
- - compatible : "charger-manager"
- - <>-supply : for regulator consumer, named according to cm-regulator-name
- - cm-chargers : name of chargers
- - cm-fuel-gauge : name of battery fuel gauge
- - subnode <regulator> :
- - cm-regulator-name : name of charger regulator
- - subnode <cable> :
- - cm-cable-name : name of charger cable - one of USB, USB-HOST,
- SDP, DCP, CDP, ACA, FAST-CHARGER, SLOW-CHARGER, WPT,
- PD, DOCK, JIG, or MECHANICAL
- - cm-cable-extcon : name of extcon dev
-(optional) - cm-cable-min : minimum current of cable
-(optional) - cm-cable-max : maximum current of cable
-
-Optional properties :
- - cm-name : charger manager's name (default : "battery")
- - cm-poll-mode : polling mode - 0 for disabled, 1 for always, 2 for when
- external power is connected, or 3 for when charging. If not present,
- then polling is disabled
- - cm-poll-interval : polling interval (in ms)
- - cm-battery-stat : battery status - 0 for battery always present, 1 for no
- battery, 2 to check presence via fuel gauge, or 3 to check presence
- via charger
- - cm-fullbatt-vchkdrop-volt : voltage drop (in uV) before restarting charging
- - cm-fullbatt-voltage : voltage (in uV) of full battery
- - cm-fullbatt-soc : state of charge to consider as full battery
- - cm-fullbatt-capacity : capcity (in uAh) to consider as full battery
- - cm-thermal-zone : name of external thermometer's thermal zone
- - cm-battery-* : threshold battery temperature for charging
- -cold : critical cold temperature of battery for charging
- -cold-in-minus : flag that cold temperature is in minus degrees
- -hot : critical hot temperature of battery for charging
- -temp-diff : temperature difference to allow recharging
- - cm-dis/charging-max = limits of charging duration
-
-Deprecated properties:
- - cm-num-chargers
- - cm-fullbatt-vchkdrop-ms
-
-Example :
- charger-manager@0 {
- compatible = "charger-manager";
- chg-reg-supply = <&charger_regulator>;
-
- cm-name = "battery";
- /* Always polling ON : 30s */
- cm-poll-mode = <1>;
- cm-poll-interval = <30000>;
-
- cm-fullbatt-vchkdrop-volt = <150000>;
- cm-fullbatt-soc = <100>;
-
- cm-battery-stat = <3>;
-
- cm-chargers = "charger0", "charger1", "charger2";
-
- cm-fuel-gauge = "fuelgauge0";
-
- cm-thermal-zone = "thermal_zone.1"
- /* in deci centigrade */
- cm-battery-cold = <50>;
- cm-battery-cold-in-minus;
- cm-battery-hot = <800>;
- cm-battery-temp-diff = <100>;
-
- /* Allow charging for 5hr */
- cm-charging-max = <18000000>;
- /* Allow discharging for 2hr */
- cm-discharging-max = <7200000>;
-
- regulator@0 {
- cm-regulator-name = "chg-reg";
- cable@0 {
- cm-cable-name = "USB";
- cm-cable-extcon = "extcon-dev.0";
- cm-cable-min = <475000>;
- cm-cable-max = <500000>;
- };
- cable@1 {
- cm-cable-name = "SDP";
- cm-cable-extcon = "extcon-dev.0";
- cm-cable-min = <650000>;
- cm-cable-max = <675000>;
- };
- };
-
- };
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/supply/charger-manager.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Charger Manager
+
+maintainers:
+ - Sebastian Reichel <sre@kernel.org>
+
+description: |
+ Binding for the legacy charger manager driver.
+ Please do not use for new products.
+
+properties:
+ compatible:
+ const: charger-manager
+
+ cm-chargers:
+ description: name of chargers
+ $ref: /schemas/types.yaml#/definitions/string-array
+
+ cm-num-chargers:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ deprecated: true
+
+ cm-fuel-gauge:
+ description: name of battery fuel gauge
+ $ref: /schemas/types.yaml#/definitions/string
+
+ cm-name:
+ description: name of the charger manager
+ default: battery
+ $ref: /schemas/types.yaml#/definitions/string
+
+ cm-poll-mode:
+ description: polling mode
+ default: 0
+ enum:
+ - 0 # disabled
+ - 1 # always
+ - 2 # when external power is connected
+ - 3 # when charging
+
+ cm-poll-interval:
+ description: polling interval (in ms)
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ cm-battery-stat:
+ description: battery status
+ enum:
+ - 0 # battery always present
+ - 1 # no battery
+ - 2 # check presence via fuel gauge
+ - 3 # check presence via charger
+
+ cm-fullbatt-vchkdrop-volt:
+ description: voltage drop before restarting charging in uV
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ cm-fullbatt-vchkdrop-ms:
+ deprecated: true
+
+ cm-fullbatt-voltage:
+ description: voltage of full battery in uV
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ cm-fullbatt-soc:
+ description: state of charge to consider as full battery in %
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ cm-fullbatt-capacity:
+ description: capcity to consider as full battery in uAh
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ cm-thermal-zone:
+ description: name of external thermometer's thermal zone
+ $ref: /schemas/types.yaml#/definitions/string
+
+ cm-discharging-max:
+ description: limits of discharging duration in ms
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ cm-charging-max:
+ description: limits of charging duration in ms
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ cm-battery-cold:
+ description: critical cold temperature of battery for charging in deci-degree celsius
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ cm-battery-cold-in-minus:
+ description: if set cm-battery-cold temperature is in minus degrees
+ type: boolean
+
+ cm-battery-hot:
+ description: critical hot temperature of battery for charging in deci-degree celsius
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ cm-battery-temp-diff:
+ description: temperature difference to allow recharging in deci-degree celsius
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+patternProperties:
+ "-supply$":
+ description: regulator consumer, named according to cm-regulator-name
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ "^regulator[@-][0-9]$":
+ type: object
+ properties:
+ cm-regulator-name:
+ description: name of charger regulator
+ $ref: /schemas/types.yaml#/definitions/string
+
+ required:
+ - cm-regulator-name
+
+ additionalProperties: false
+
+ patternProperties:
+ "^cable[@-][0-9]$":
+ type: object
+ properties:
+ cm-cable-name:
+ description: name of charger cable
+ enum:
+ - USB
+ - USB-HOST
+ - SDP
+ - DCP
+ - CDP
+ - ACA
+ - FAST-CHARGER
+ - SLOW-CHARGER
+ - WPT
+ - PD
+ - DOCK
+ - JIG
+ - MECHANICAL
+
+ cm-cable-extcon:
+ description: name of extcon dev
+ $ref: /schemas/types.yaml#/definitions/string
+
+ cm-cable-min:
+ description: minimum current of cable in uA
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ cm-cable-max:
+ description: maximum current of cable in uA
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ required:
+ - cm-cable-name
+ - cm-cable-extcon
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - cm-chargers
+ - cm-fuel-gauge
+
+additionalProperties: false
+
+examples:
+ - |
+ charger-manager {
+ compatible = "charger-manager";
+ chg-reg-supply = <&charger_regulator>;
+
+ cm-name = "battery";
+ /* Always polling ON : 30s */
+ cm-poll-mode = <1>;
+ cm-poll-interval = <30000>;
+
+ cm-fullbatt-vchkdrop-volt = <150000>;
+ cm-fullbatt-soc = <100>;
+
+ cm-battery-stat = <3>;
+
+ cm-chargers = "charger0", "charger1", "charger2";
+
+ cm-fuel-gauge = "fuelgauge0";
+
+ cm-thermal-zone = "thermal_zone.1";
+ /* in deci centigrade */
+ cm-battery-cold = <50>;
+ cm-battery-cold-in-minus;
+ cm-battery-hot = <800>;
+ cm-battery-temp-diff = <100>;
+
+ /* Allow charging for 5hr */
+ cm-charging-max = <18000000>;
+ /* Allow discharging for 2hr */
+ cm-discharging-max = <7200000>;
+
+ regulator-0 {
+ cm-regulator-name = "chg-reg";
+ cable-0 {
+ cm-cable-name = "USB";
+ cm-cable-extcon = "extcon-dev.0";
+ cm-cable-min = <475000>;
+ cm-cable-max = <500000>;
+ };
+ cable-1 {
+ cm-cable-name = "SDP";
+ cm-cable-extcon = "extcon-dev.0";
+ cm-cable-min = <650000>;
+ cm-cable-max = <675000>;
+ };
+ };
+ };
reg = <0x36>;
maxim,alert-low-soc-level = <10>;
interrupt-parent = <&gpio7>;
- interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
+ interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
wakeup-source;
};
};
--- /dev/null
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/power/supply/richtek,rt5033-battery.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Richtek RT5033 PMIC Fuel Gauge
+
+maintainers:
+ - Stephan Gerhold <stephan@gerhold.net>
+
+allOf:
+ - $ref: power-supply.yaml#
+
+properties:
+ compatible:
+ const: richtek,rt5033-battery
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ battery@35 {
+ compatible = "richtek,rt5033-battery";
+ reg = <0x35>;
+ };
+ };
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ battery@35 {
+ compatible = "richtek,rt5033-battery";
+ reg = <0x35>;
+ interrupt-parent = <&msmgpio>;
+ interrupts = <121 IRQ_TYPE_EDGE_FALLING>;
+ };
+ };
F: Documentation/ABI/testing/sysfs-class-power
F: Documentation/devicetree/bindings/power/supply/
F: drivers/power/supply/
+F: include/linux/power/
F: include/linux/power_supply.h
POWERNV OPERATOR PANEL LCD DISPLAY DRIVER
F: drivers/s390/scsi/zfcp_*
S3C ADC BATTERY DRIVER
-M: Krzysztof Kozlowski <krzk@kernel.org>
+M: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
L: linux-samsung-soc@vger.kernel.org
S: Odd Fixes
F: drivers/power/supply/s3c_adc_battery.c
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
at91_shdwc->shdwc_base = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(at91_shdwc->shdwc_base)) {
- dev_err(&pdev->dev, "Could not map reset controller address\n");
+ if (IS_ERR(at91_shdwc->shdwc_base))
return PTR_ERR(at91_shdwc->shdwc_base);
- }
match = of_match_node(at91_shdwc_of_match, pdev->dev.of_node);
at91_shdwc->rcfg = match->data;
{ .compatible = "gpio-poweroff", },
{},
};
+MODULE_DEVICE_TABLE(of, of_gpio_poweroff_match);
static struct platform_driver gpio_poweroff_driver = {
.probe = gpio_poweroff_probe,
{.compatible = "ti,keystone-reset", },
{},
};
+MODULE_DEVICE_TABLE(of, rsctrl_of_match);
static int rsctrl_probe(struct platform_device *pdev)
{
{ .compatible = "regulator-poweroff", },
{},
};
+MODULE_DEVICE_TABLE(of, of_regulator_poweroff_match);
static struct platform_driver regulator_poweroff_driver = {
.probe = regulator_poweroff_probe,
config BATTERY_RT5033
tristate "RT5033 fuel gauge support"
- depends on MFD_RT5033
+ depends on I2C
+ select REGMAP_I2C
help
This adds support for battery fuel gauge in Richtek RT5033 PMIC.
The fuelgauge calculates and determines the battery state of charge
Say Y to enable support for Microchip UCS1002 Programmable
USB Port Power Controller with Charger Emulation.
-config CHARGER_BD70528
- tristate "ROHM bd70528 charger driver"
- depends on MFD_ROHM_BD70528
- select LINEAR_RANGES
- help
- Say Y here to enable support for getting battery status
- information and altering charger configurations from charger
- block of the ROHM BD70528 Power Management IC.
-
config CHARGER_BD99954
tristate "ROHM bd99954 charger driver"
depends on I2C
obj-$(CONFIG_CHARGER_88PM860X) += 88pm860x_charger.o
obj-$(CONFIG_CHARGER_PCF50633) += pcf50633-charger.o
obj-$(CONFIG_BATTERY_RX51) += rx51_battery.o
-obj-$(CONFIG_AB8500_BM) += ab8500_bmdata.o ab8500_charger.o ab8500_fg.o ab8500_btemp.o abx500_chargalg.o pm2301_charger.o
+obj-$(CONFIG_AB8500_BM) += ab8500_bmdata.o ab8500_charger.o ab8500_fg.o ab8500_btemp.o abx500_chargalg.o
obj-$(CONFIG_CHARGER_CPCAP) += cpcap-charger.o
obj-$(CONFIG_CHARGER_ISP1704) += isp1704_charger.o
obj-$(CONFIG_CHARGER_MAX8903) += max8903_charger.o
obj-$(CONFIG_CHARGER_SC2731) += sc2731_charger.o
obj-$(CONFIG_FUEL_GAUGE_SC27XX) += sc27xx_fuel_gauge.o
obj-$(CONFIG_CHARGER_UCS1002) += ucs1002_power.o
-obj-$(CONFIG_CHARGER_BD70528) += bd70528-charger.o
obj-$(CONFIG_CHARGER_BD99954) += bd99954-charger.o
obj-$(CONFIG_CHARGER_WILCO) += wilco-charger.o
obj-$(CONFIG_RN5T618_POWER) += rn5t618_power.o
int usb_safety_tmr_h;
int bkup_bat_v;
int bkup_bat_i;
- bool autopower_cfg;
- bool ac_enabled;
- bool usb_enabled;
bool no_maintenance;
bool capacity_scaling;
bool chg_unknown_bat;
struct device_node *np,
struct abx500_bm_data *bm);
+extern struct platform_driver ab8500_fg_driver;
+extern struct platform_driver ab8500_btemp_driver;
+extern struct platform_driver abx500_chargalg_driver;
+
#endif /* _AB8500_CHARGER_H_ */
* - POWER_SUPPLY_TYPE_USB,
* because only them store as drv_data pointer to struct ux500_charger.
*/
-#define psy_to_ux500_charger(x) power_supply_get_drvdata(psy)
+#define psy_to_ux500_charger(x) power_supply_get_drvdata(x)
/* Forward declaration */
struct ux500_charger;
#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
+#include <linux/component.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/slab.h>
return 0;
}
-static int ab8500_btemp_remove(struct platform_device *pdev)
-{
- struct ab8500_btemp *di = platform_get_drvdata(pdev);
- int i, irq;
-
- /* Disable interrupts */
- for (i = 0; i < ARRAY_SIZE(ab8500_btemp_irq); i++) {
- irq = platform_get_irq_byname(pdev, ab8500_btemp_irq[i].name);
- free_irq(irq, di);
- }
-
- /* Delete the work queue */
- destroy_workqueue(di->btemp_wq);
-
- flush_scheduled_work();
- power_supply_unregister(di->btemp_psy);
-
- return 0;
-}
-
static char *supply_interface[] = {
"ab8500_chargalg",
"ab8500_fg",
.external_power_changed = ab8500_btemp_external_power_changed,
};
+static int ab8500_btemp_bind(struct device *dev, struct device *master,
+ void *data)
+{
+ struct ab8500_btemp *di = dev_get_drvdata(dev);
+
+ /* Create a work queue for the btemp */
+ di->btemp_wq =
+ alloc_workqueue("ab8500_btemp_wq", WQ_MEM_RECLAIM, 0);
+ if (di->btemp_wq == NULL) {
+ dev_err(dev, "failed to create work queue\n");
+ return -ENOMEM;
+ }
+
+ /* Kick off periodic temperature measurements */
+ ab8500_btemp_periodic(di, true);
+
+ return 0;
+}
+
+static void ab8500_btemp_unbind(struct device *dev, struct device *master,
+ void *data)
+{
+ struct ab8500_btemp *di = dev_get_drvdata(dev);
+
+ /* Delete the work queue */
+ destroy_workqueue(di->btemp_wq);
+ flush_scheduled_work();
+}
+
+static const struct component_ops ab8500_btemp_component_ops = {
+ .bind = ab8500_btemp_bind,
+ .unbind = ab8500_btemp_unbind,
+};
+
static int ab8500_btemp_probe(struct platform_device *pdev)
{
- struct device_node *np = pdev->dev.of_node;
struct power_supply_config psy_cfg = {};
struct device *dev = &pdev->dev;
struct ab8500_btemp *di;
di->bm = &ab8500_bm_data;
- ret = ab8500_bm_of_probe(dev, np, di->bm);
- if (ret) {
- dev_err(dev, "failed to get battery information\n");
- return ret;
- }
-
/* get parent data */
di->dev = dev;
di->parent = dev_get_drvdata(pdev->dev.parent);
psy_cfg.num_supplicants = ARRAY_SIZE(supply_interface);
psy_cfg.drv_data = di;
- /* Create a work queue for the btemp */
- di->btemp_wq =
- alloc_workqueue("ab8500_btemp_wq", WQ_MEM_RECLAIM, 0);
- if (di->btemp_wq == NULL) {
- dev_err(dev, "failed to create work queue\n");
- return -ENOMEM;
- }
-
/* Init work for measuring temperature periodically */
INIT_DEFERRABLE_WORK(&di->btemp_periodic_work,
ab8500_btemp_periodic_work);
AB8500_BTEMP_HIGH_TH, &val);
if (ret < 0) {
dev_err(dev, "%s ab8500 read failed\n", __func__);
- goto free_btemp_wq;
+ return ret;
}
switch (val) {
case BTEMP_HIGH_TH_57_0:
}
/* Register BTEMP power supply class */
- di->btemp_psy = power_supply_register(dev, &ab8500_btemp_desc,
- &psy_cfg);
+ di->btemp_psy = devm_power_supply_register(dev, &ab8500_btemp_desc,
+ &psy_cfg);
if (IS_ERR(di->btemp_psy)) {
dev_err(dev, "failed to register BTEMP psy\n");
- ret = PTR_ERR(di->btemp_psy);
- goto free_btemp_wq;
+ return PTR_ERR(di->btemp_psy);
}
/* Register interrupts */
for (i = 0; i < ARRAY_SIZE(ab8500_btemp_irq); i++) {
irq = platform_get_irq_byname(pdev, ab8500_btemp_irq[i].name);
- if (irq < 0) {
- ret = irq;
- goto free_irq;
- }
+ if (irq < 0)
+ return irq;
- ret = request_threaded_irq(irq, NULL, ab8500_btemp_irq[i].isr,
+ ret = devm_request_threaded_irq(dev, irq, NULL,
+ ab8500_btemp_irq[i].isr,
IRQF_SHARED | IRQF_NO_SUSPEND | IRQF_ONESHOT,
ab8500_btemp_irq[i].name, di);
if (ret) {
dev_err(dev, "failed to request %s IRQ %d: %d\n"
, ab8500_btemp_irq[i].name, irq, ret);
- goto free_irq;
+ return ret;
}
dev_dbg(dev, "Requested %s IRQ %d: %d\n",
ab8500_btemp_irq[i].name, irq, ret);
platform_set_drvdata(pdev, di);
- /* Kick off periodic temperature measurements */
- ab8500_btemp_periodic(di, true);
list_add_tail(&di->node, &ab8500_btemp_list);
- return ret;
+ return component_add(dev, &ab8500_btemp_component_ops);
+}
-free_irq:
- /* We also have to free all successfully registered irqs */
- for (i = i - 1; i >= 0; i--) {
- irq = platform_get_irq_byname(pdev, ab8500_btemp_irq[i].name);
- free_irq(irq, di);
- }
+static int ab8500_btemp_remove(struct platform_device *pdev)
+{
+ component_del(&pdev->dev, &ab8500_btemp_component_ops);
- power_supply_unregister(di->btemp_psy);
-free_btemp_wq:
- destroy_workqueue(di->btemp_wq);
- return ret;
+ return 0;
}
static SIMPLE_DEV_PM_OPS(ab8500_btemp_pm_ops, ab8500_btemp_suspend, ab8500_btemp_resume);
{ .compatible = "stericsson,ab8500-btemp", },
{ },
};
+MODULE_DEVICE_TABLE(of, ab8500_btemp_match);
-static struct platform_driver ab8500_btemp_driver = {
+struct platform_driver ab8500_btemp_driver = {
.probe = ab8500_btemp_probe,
.remove = ab8500_btemp_remove,
.driver = {
.pm = &ab8500_btemp_pm_ops,
},
};
-
-static int __init ab8500_btemp_init(void)
-{
- return platform_driver_register(&ab8500_btemp_driver);
-}
-
-static void __exit ab8500_btemp_exit(void)
-{
- platform_driver_unregister(&ab8500_btemp_driver);
-}
-
-device_initcall(ab8500_btemp_init);
-module_exit(ab8500_btemp_exit);
-
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Johan Palsson, Karl Komierowski, Arun R Murthy");
MODULE_ALIAS("platform:ab8500-btemp");
#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
+#include <linux/component.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/notifier.h>
static void ab8500_power_supply_changed(struct ab8500_charger *di,
struct power_supply *psy)
{
+ /*
+ * This happens if we get notifications or interrupts and
+ * the platform has been configured not to support one or
+ * other type of charging.
+ */
+ if (!psy)
+ return;
+
if (di->autopower_cfg) {
if (!di->usb.charger_connected &&
!di->ac.charger_connected &&
if (!connected)
di->flags.vbus_drop_end = false;
- sysfs_notify(&di->usb_chg.psy->dev.kobj, NULL, "present");
+ /*
+ * Sometimes the platform is configured not to support
+ * USB charging and no psy has been created, but we still
+ * will get these notifications.
+ */
+ if (di->usb_chg.psy) {
+ sysfs_notify(&di->usb_chg.psy->dev.kobj, NULL,
+ "present");
+ }
if (connected) {
mutex_lock(&di->charger_attached_mutex);
enum ab8500_usb_state bm_usb_state;
unsigned mA = *((unsigned *)power);
- if (!di)
- return NOTIFY_DONE;
-
if (event != USB_EVENT_VBUS) {
dev_dbg(di->dev, "not a standard host, returning\n");
return NOTIFY_DONE;
.notifier_call = ab8500_external_charger_prepare,
};
-static int ab8500_charger_remove(struct platform_device *pdev)
+static char *supply_interface[] = {
+ "ab8500_chargalg",
+ "ab8500_fg",
+ "ab8500_btemp",
+};
+
+static const struct power_supply_desc ab8500_ac_chg_desc = {
+ .name = "ab8500_ac",
+ .type = POWER_SUPPLY_TYPE_MAINS,
+ .properties = ab8500_charger_ac_props,
+ .num_properties = ARRAY_SIZE(ab8500_charger_ac_props),
+ .get_property = ab8500_charger_ac_get_property,
+};
+
+static const struct power_supply_desc ab8500_usb_chg_desc = {
+ .name = "ab8500_usb",
+ .type = POWER_SUPPLY_TYPE_USB,
+ .properties = ab8500_charger_usb_props,
+ .num_properties = ARRAY_SIZE(ab8500_charger_usb_props),
+ .get_property = ab8500_charger_usb_get_property,
+};
+
+static int ab8500_charger_bind(struct device *dev)
{
- struct ab8500_charger *di = platform_get_drvdata(pdev);
- int i, irq, ret;
+ struct ab8500_charger *di = dev_get_drvdata(dev);
+ int ch_stat;
+ int ret;
+
+ /* Create a work queue for the charger */
+ di->charger_wq = alloc_ordered_workqueue("ab8500_charger_wq",
+ WQ_MEM_RECLAIM);
+ if (di->charger_wq == NULL) {
+ dev_err(dev, "failed to create work queue\n");
+ return -ENOMEM;
+ }
+
+ ch_stat = ab8500_charger_detect_chargers(di, false);
+
+ if (ch_stat & AC_PW_CONN) {
+ if (is_ab8500(di->parent))
+ queue_delayed_work(di->charger_wq,
+ &di->ac_charger_attached_work,
+ HZ);
+ }
+ if (ch_stat & USB_PW_CONN) {
+ if (is_ab8500(di->parent))
+ queue_delayed_work(di->charger_wq,
+ &di->usb_charger_attached_work,
+ HZ);
+ di->vbus_detected = true;
+ di->vbus_detected_start = true;
+ queue_work(di->charger_wq,
+ &di->detect_usb_type_work);
+ }
+
+ ret = component_bind_all(dev, di);
+ if (ret) {
+ dev_err(dev, "can't bind component devices\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static void ab8500_charger_unbind(struct device *dev)
+{
+ struct ab8500_charger *di = dev_get_drvdata(dev);
+ int ret;
/* Disable AC charging */
ab8500_charger_ac_en(&di->ac_chg, false, 0, 0);
/* Disable USB charging */
ab8500_charger_usb_en(&di->usb_chg, false, 0, 0);
- /* Disable interrupts */
- for (i = 0; i < ARRAY_SIZE(ab8500_charger_irq); i++) {
- irq = platform_get_irq_byname(pdev, ab8500_charger_irq[i].name);
- free_irq(irq, di);
- }
-
/* Backup battery voltage and current disable */
ret = abx500_mask_and_set_register_interruptible(di->dev,
AB8500_RTC, AB8500_RTC_CTRL_REG, RTC_BUP_CH_ENA, 0);
if (ret < 0)
dev_err(di->dev, "%s mask and set failed\n", __func__);
- usb_unregister_notifier(di->usb_phy, &di->nb);
- usb_put_phy(di->usb_phy);
-
/* Delete the work queue */
destroy_workqueue(di->charger_wq);
- /* Unregister external charger enable notifier */
- if (!di->ac_chg.enabled)
- blocking_notifier_chain_unregister(
- &charger_notifier_list, &charger_nb);
-
flush_scheduled_work();
- if (di->usb_chg.enabled)
- power_supply_unregister(di->usb_chg.psy);
- if (di->ac_chg.enabled && !di->ac_chg.external)
- power_supply_unregister(di->ac_chg.psy);
-
- return 0;
+ /* Unbind fg, btemp, algorithm */
+ component_unbind_all(dev, di);
}
-static char *supply_interface[] = {
- "ab8500_chargalg",
- "ab8500_fg",
- "ab8500_btemp",
+static const struct component_master_ops ab8500_charger_comp_ops = {
+ .bind = ab8500_charger_bind,
+ .unbind = ab8500_charger_unbind,
};
-static const struct power_supply_desc ab8500_ac_chg_desc = {
- .name = "ab8500_ac",
- .type = POWER_SUPPLY_TYPE_MAINS,
- .properties = ab8500_charger_ac_props,
- .num_properties = ARRAY_SIZE(ab8500_charger_ac_props),
- .get_property = ab8500_charger_ac_get_property,
+static struct platform_driver *const ab8500_charger_component_drivers[] = {
+ &ab8500_fg_driver,
+ &ab8500_btemp_driver,
+ &abx500_chargalg_driver,
};
-static const struct power_supply_desc ab8500_usb_chg_desc = {
- .name = "ab8500_usb",
- .type = POWER_SUPPLY_TYPE_USB,
- .properties = ab8500_charger_usb_props,
- .num_properties = ARRAY_SIZE(ab8500_charger_usb_props),
- .get_property = ab8500_charger_usb_get_property,
-};
+static int ab8500_charger_compare_dev(struct device *dev, void *data)
+{
+ return dev == data;
+}
static int ab8500_charger_probe(struct platform_device *pdev)
{
- struct device_node *np = pdev->dev.of_node;
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct component_match *match = NULL;
struct power_supply_config ac_psy_cfg = {}, usb_psy_cfg = {};
struct ab8500_charger *di;
- int irq, i, charger_status, ret = 0, ch_stat;
- struct device *dev = &pdev->dev;
+ int charger_status;
+ int i, irq;
+ int ret;
di = devm_kzalloc(dev, sizeof(*di), GFP_KERNEL);
if (!di)
return ret;
}
+ /*
+ * VDD ADC supply needs to be enabled from this driver when there
+ * is a charger connected to avoid erroneous BTEMP_HIGH/LOW
+ * interrupts during charging
+ */
+ di->regu = devm_regulator_get(dev, "vddadc");
+ if (IS_ERR(di->regu)) {
+ ret = PTR_ERR(di->regu);
+ dev_err(dev, "failed to get vddadc regulator\n");
+ return ret;
+ }
+
+ /* Request interrupts */
+ for (i = 0; i < ARRAY_SIZE(ab8500_charger_irq); i++) {
+ irq = platform_get_irq_byname(pdev, ab8500_charger_irq[i].name);
+ if (irq < 0)
+ return irq;
+
+ ret = devm_request_threaded_irq(dev,
+ irq, NULL, ab8500_charger_irq[i].isr,
+ IRQF_SHARED | IRQF_NO_SUSPEND | IRQF_ONESHOT,
+ ab8500_charger_irq[i].name, di);
+
+ if (ret != 0) {
+ dev_err(dev, "failed to request %s IRQ %d: %d\n"
+ , ab8500_charger_irq[i].name, irq, ret);
+ return ret;
+ }
+ dev_dbg(dev, "Requested %s IRQ %d: %d\n",
+ ab8500_charger_irq[i].name, irq, ret);
+ }
+
/* initialize lock */
spin_lock_init(&di->usb_state.usb_lock);
mutex_init(&di->usb_ipt_crnt_lock);
di->ac_chg.max_out_curr =
di->bm->chg_output_curr[di->bm->n_chg_out_curr - 1];
di->ac_chg.wdt_refresh = CHG_WD_INTERVAL;
- di->ac_chg.enabled = di->bm->ac_enabled;
+ /*
+ * The AB8505 only supports USB charging. If we are not the
+ * AB8505, register an AC charger.
+ *
+ * TODO: if this should be opt-in, add DT properties for this.
+ */
+ if (!is_ab8505(di->parent))
+ di->ac_chg.enabled = true;
di->ac_chg.external = false;
- /*notifier for external charger enabling*/
- if (!di->ac_chg.enabled)
- blocking_notifier_chain_register(
- &charger_notifier_list, &charger_nb);
-
/* USB supply */
/* ux500_charger sub-class */
di->usb_chg.ops.enable = &ab8500_charger_usb_en;
di->usb_chg.max_out_curr =
di->bm->chg_output_curr[di->bm->n_chg_out_curr - 1];
di->usb_chg.wdt_refresh = CHG_WD_INTERVAL;
- di->usb_chg.enabled = di->bm->usb_enabled;
di->usb_chg.external = false;
di->usb_state.usb_current = -1;
- /* Create a work queue for the charger */
- di->charger_wq = alloc_ordered_workqueue("ab8500_charger_wq",
- WQ_MEM_RECLAIM);
- if (di->charger_wq == NULL) {
- dev_err(dev, "failed to create work queue\n");
- return -ENOMEM;
- }
-
mutex_init(&di->charger_attached_mutex);
/* Init work for HW failure check */
INIT_WORK(&di->check_usb_thermal_prot_work,
ab8500_charger_check_usb_thermal_prot_work);
- /*
- * VDD ADC supply needs to be enabled from this driver when there
- * is a charger connected to avoid erroneous BTEMP_HIGH/LOW
- * interrupts during charging
- */
- di->regu = devm_regulator_get(dev, "vddadc");
- if (IS_ERR(di->regu)) {
- ret = PTR_ERR(di->regu);
- dev_err(dev, "failed to get vddadc regulator\n");
- goto free_charger_wq;
- }
-
/* Initialize OVV, and other registers */
ret = ab8500_charger_init_hw_registers(di);
if (ret) {
dev_err(dev, "failed to initialize ABB registers\n");
- goto free_charger_wq;
+ return ret;
}
/* Register AC charger class */
if (di->ac_chg.enabled) {
- di->ac_chg.psy = power_supply_register(dev,
+ di->ac_chg.psy = devm_power_supply_register(dev,
&ab8500_ac_chg_desc,
&ac_psy_cfg);
if (IS_ERR(di->ac_chg.psy)) {
dev_err(dev, "failed to register AC charger\n");
- ret = PTR_ERR(di->ac_chg.psy);
- goto free_charger_wq;
+ return PTR_ERR(di->ac_chg.psy);
}
}
/* Register USB charger class */
- if (di->usb_chg.enabled) {
- di->usb_chg.psy = power_supply_register(dev,
- &ab8500_usb_chg_desc,
- &usb_psy_cfg);
- if (IS_ERR(di->usb_chg.psy)) {
- dev_err(dev, "failed to register USB charger\n");
- ret = PTR_ERR(di->usb_chg.psy);
- goto free_ac;
- }
- }
-
- di->usb_phy = usb_get_phy(USB_PHY_TYPE_USB2);
- if (IS_ERR_OR_NULL(di->usb_phy)) {
- dev_err(dev, "failed to get usb transceiver\n");
- ret = -EINVAL;
- goto free_usb;
- }
- di->nb.notifier_call = ab8500_charger_usb_notifier_call;
- ret = usb_register_notifier(di->usb_phy, &di->nb);
- if (ret) {
- dev_err(dev, "failed to register usb notifier\n");
- goto put_usb_phy;
+ di->usb_chg.psy = devm_power_supply_register(dev,
+ &ab8500_usb_chg_desc,
+ &usb_psy_cfg);
+ if (IS_ERR(di->usb_chg.psy)) {
+ dev_err(dev, "failed to register USB charger\n");
+ return PTR_ERR(di->usb_chg.psy);
}
/* Identify the connected charger types during startup */
sysfs_notify(&di->ac_chg.psy->dev.kobj, NULL, "present");
}
- if (charger_status & USB_PW_CONN) {
- di->vbus_detected = true;
- di->vbus_detected_start = true;
- queue_work(di->charger_wq,
- &di->detect_usb_type_work);
- }
-
- /* Register interrupts */
- for (i = 0; i < ARRAY_SIZE(ab8500_charger_irq); i++) {
- irq = platform_get_irq_byname(pdev, ab8500_charger_irq[i].name);
- if (irq < 0) {
- ret = irq;
- goto free_irq;
- }
+ platform_set_drvdata(pdev, di);
- ret = request_threaded_irq(irq, NULL, ab8500_charger_irq[i].isr,
- IRQF_SHARED | IRQF_NO_SUSPEND | IRQF_ONESHOT,
- ab8500_charger_irq[i].name, di);
+ /* Create something that will match the subdrivers when we bind */
+ for (i = 0; i < ARRAY_SIZE(ab8500_charger_component_drivers); i++) {
+ struct device_driver *drv = &ab8500_charger_component_drivers[i]->driver;
+ struct device *p = NULL, *d;
- if (ret != 0) {
- dev_err(dev, "failed to request %s IRQ %d: %d\n"
- , ab8500_charger_irq[i].name, irq, ret);
- goto free_irq;
+ while ((d = platform_find_device_by_driver(p, drv))) {
+ put_device(p);
+ component_match_add(dev, &match,
+ ab8500_charger_compare_dev, d);
+ p = d;
}
- dev_dbg(dev, "Requested %s IRQ %d: %d\n",
- ab8500_charger_irq[i].name, irq, ret);
+ put_device(p);
+ }
+ if (!match) {
+ dev_err(dev, "no matching components\n");
+ return -ENODEV;
+ }
+ if (IS_ERR(match)) {
+ dev_err(dev, "could not create component match\n");
+ return PTR_ERR(match);
}
- platform_set_drvdata(pdev, di);
-
- mutex_lock(&di->charger_attached_mutex);
+ /* Notifier for external charger enabling */
+ if (!di->ac_chg.enabled)
+ blocking_notifier_chain_register(
+ &charger_notifier_list, &charger_nb);
- ch_stat = ab8500_charger_detect_chargers(di, false);
- if ((ch_stat & AC_PW_CONN) == AC_PW_CONN) {
- if (is_ab8500(di->parent))
- queue_delayed_work(di->charger_wq,
- &di->ac_charger_attached_work,
- HZ);
+ di->usb_phy = usb_get_phy(USB_PHY_TYPE_USB2);
+ if (IS_ERR_OR_NULL(di->usb_phy)) {
+ dev_err(dev, "failed to get usb transceiver\n");
+ ret = -EINVAL;
+ goto out_charger_notifier;
}
- if ((ch_stat & USB_PW_CONN) == USB_PW_CONN) {
- if (is_ab8500(di->parent))
- queue_delayed_work(di->charger_wq,
- &di->usb_charger_attached_work,
- HZ);
+ di->nb.notifier_call = ab8500_charger_usb_notifier_call;
+ ret = usb_register_notifier(di->usb_phy, &di->nb);
+ if (ret) {
+ dev_err(dev, "failed to register usb notifier\n");
+ goto put_usb_phy;
}
- mutex_unlock(&di->charger_attached_mutex);
- return ret;
+ ret = component_master_add_with_match(&pdev->dev,
+ &ab8500_charger_comp_ops,
+ match);
+ if (ret) {
+ dev_err(dev, "failed to add component master\n");
+ goto free_notifier;
+ }
-free_irq:
- usb_unregister_notifier(di->usb_phy, &di->nb);
+ return 0;
- /* We also have to free all successfully registered irqs */
- for (i = i - 1; i >= 0; i--) {
- irq = platform_get_irq_byname(pdev, ab8500_charger_irq[i].name);
- free_irq(irq, di);
- }
+free_notifier:
+ usb_unregister_notifier(di->usb_phy, &di->nb);
put_usb_phy:
usb_put_phy(di->usb_phy);
-free_usb:
- if (di->usb_chg.enabled)
- power_supply_unregister(di->usb_chg.psy);
-free_ac:
- if (di->ac_chg.enabled)
- power_supply_unregister(di->ac_chg.psy);
-free_charger_wq:
- destroy_workqueue(di->charger_wq);
+out_charger_notifier:
+ if (!di->ac_chg.enabled)
+ blocking_notifier_chain_unregister(
+ &charger_notifier_list, &charger_nb);
return ret;
}
+static int ab8500_charger_remove(struct platform_device *pdev)
+{
+ struct ab8500_charger *di = platform_get_drvdata(pdev);
+
+ component_master_del(&pdev->dev, &ab8500_charger_comp_ops);
+
+ usb_unregister_notifier(di->usb_phy, &di->nb);
+ usb_put_phy(di->usb_phy);
+ if (!di->ac_chg.enabled)
+ blocking_notifier_chain_unregister(
+ &charger_notifier_list, &charger_nb);
+
+ return 0;
+}
+
static SIMPLE_DEV_PM_OPS(ab8500_charger_pm_ops, ab8500_charger_suspend, ab8500_charger_resume);
static const struct of_device_id ab8500_charger_match[] = {
{ .compatible = "stericsson,ab8500-charger", },
{ },
};
+MODULE_DEVICE_TABLE(of, ab8500_charger_match);
static struct platform_driver ab8500_charger_driver = {
.probe = ab8500_charger_probe,
static int __init ab8500_charger_init(void)
{
+ int ret;
+
+ ret = platform_register_drivers(ab8500_charger_component_drivers,
+ ARRAY_SIZE(ab8500_charger_component_drivers));
+ if (ret)
+ return ret;
+
return platform_driver_register(&ab8500_charger_driver);
}
static void __exit ab8500_charger_exit(void)
{
+ platform_unregister_drivers(ab8500_charger_component_drivers,
+ ARRAY_SIZE(ab8500_charger_component_drivers));
platform_driver_unregister(&ab8500_charger_driver);
}
-subsys_initcall_sync(ab8500_charger_init);
+module_init(ab8500_charger_init);
module_exit(ab8500_charger_exit);
MODULE_LICENSE("GPL v2");
#include <linux/init.h>
#include <linux/module.h>
+#include <linux/component.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
((y1) + ((((y2) - (y1)) * ((x) - (x1))) / ((x2) - (x1))));
/**
- * struct ab8500_fg_interrupts - ab8500 fg interupts
+ * struct ab8500_fg_interrupts - ab8500 fg interrupts
* @name: name of the interrupt
* @isr function pointer to the isr
*/
return 0;
}
-static int ab8500_fg_remove(struct platform_device *pdev)
-{
- int ret = 0;
- struct ab8500_fg *di = platform_get_drvdata(pdev);
-
- list_del(&di->node);
-
- /* Disable coulomb counter */
- ret = ab8500_fg_coulomb_counter(di, false);
- if (ret)
- dev_err(di->dev, "failed to disable coulomb counter\n");
-
- destroy_workqueue(di->fg_wq);
- ab8500_fg_sysfs_exit(di);
-
- flush_scheduled_work();
- ab8500_fg_sysfs_psy_remove_attrs(di);
- power_supply_unregister(di->fg_psy);
- return ret;
-}
-
/* ab8500 fg driver interrupts and their respective isr */
static struct ab8500_fg_interrupts ab8500_fg_irq[] = {
{"NCONV_ACCU", ab8500_fg_cc_convend_handler},
.external_power_changed = ab8500_fg_external_power_changed,
};
+static int ab8500_fg_bind(struct device *dev, struct device *master,
+ void *data)
+{
+ struct ab8500_fg *di = dev_get_drvdata(dev);
+
+ /* Create a work queue for running the FG algorithm */
+ di->fg_wq = alloc_ordered_workqueue("ab8500_fg_wq", WQ_MEM_RECLAIM);
+ if (di->fg_wq == NULL) {
+ dev_err(dev, "failed to create work queue\n");
+ return -ENOMEM;
+ }
+
+ /* Start the coulomb counter */
+ ab8500_fg_coulomb_counter(di, true);
+ /* Run the FG algorithm */
+ queue_delayed_work(di->fg_wq, &di->fg_periodic_work, 0);
+
+ return 0;
+}
+
+static void ab8500_fg_unbind(struct device *dev, struct device *master,
+ void *data)
+{
+ struct ab8500_fg *di = dev_get_drvdata(dev);
+ int ret;
+
+ /* Disable coulomb counter */
+ ret = ab8500_fg_coulomb_counter(di, false);
+ if (ret)
+ dev_err(dev, "failed to disable coulomb counter\n");
+
+ destroy_workqueue(di->fg_wq);
+ flush_scheduled_work();
+}
+
+static const struct component_ops ab8500_fg_component_ops = {
+ .bind = ab8500_fg_bind,
+ .unbind = ab8500_fg_unbind,
+};
+
static int ab8500_fg_probe(struct platform_device *pdev)
{
- struct device_node *np = pdev->dev.of_node;
- struct power_supply_config psy_cfg = {};
struct device *dev = &pdev->dev;
+ struct power_supply_config psy_cfg = {};
struct ab8500_fg *di;
int i, irq;
int ret = 0;
di->bm = &ab8500_bm_data;
- ret = ab8500_bm_of_probe(dev, np, di->bm);
- if (ret) {
- dev_err(dev, "failed to get battery information\n");
- return ret;
- }
-
mutex_init(&di->cc_lock);
/* get parent data */
ab8500_fg_charge_state_to(di, AB8500_FG_CHARGE_INIT);
ab8500_fg_discharge_state_to(di, AB8500_FG_DISCHARGE_INIT);
- /* Create a work queue for running the FG algorithm */
- di->fg_wq = alloc_ordered_workqueue("ab8500_fg_wq", WQ_MEM_RECLAIM);
- if (di->fg_wq == NULL) {
- dev_err(dev, "failed to create work queue\n");
- return -ENOMEM;
- }
-
/* Init work for running the fg algorithm instantly */
INIT_WORK(&di->fg_work, ab8500_fg_instant_work);
ret = ab8500_fg_init_hw_registers(di);
if (ret) {
dev_err(dev, "failed to initialize registers\n");
- goto free_inst_curr_wq;
+ return ret;
}
/* Consider battery unknown until we're informed otherwise */
di->flags.batt_id_received = false;
/* Register FG power supply class */
- di->fg_psy = power_supply_register(dev, &ab8500_fg_desc, &psy_cfg);
+ di->fg_psy = devm_power_supply_register(dev, &ab8500_fg_desc, &psy_cfg);
if (IS_ERR(di->fg_psy)) {
dev_err(dev, "failed to register FG psy\n");
- ret = PTR_ERR(di->fg_psy);
- goto free_inst_curr_wq;
+ return PTR_ERR(di->fg_psy);
}
di->fg_samples = SEC_TO_SAMPLE(di->bm->fg_params->init_timer);
- ab8500_fg_coulomb_counter(di, true);
/*
* Initialize completion used to notify completion and start
/* Register primary interrupt handlers */
for (i = 0; i < ARRAY_SIZE(ab8500_fg_irq); i++) {
irq = platform_get_irq_byname(pdev, ab8500_fg_irq[i].name);
- if (irq < 0) {
- ret = irq;
- goto free_irq;
- }
+ if (irq < 0)
+ return irq;
- ret = request_threaded_irq(irq, NULL, ab8500_fg_irq[i].isr,
+ ret = devm_request_threaded_irq(dev, irq, NULL,
+ ab8500_fg_irq[i].isr,
IRQF_SHARED | IRQF_NO_SUSPEND | IRQF_ONESHOT,
ab8500_fg_irq[i].name, di);
if (ret != 0) {
dev_err(dev, "failed to request %s IRQ %d: %d\n",
ab8500_fg_irq[i].name, irq, ret);
- goto free_irq;
+ return ret;
}
dev_dbg(dev, "Requested %s IRQ %d: %d\n",
ab8500_fg_irq[i].name, irq, ret);
ret = ab8500_fg_sysfs_init(di);
if (ret) {
dev_err(dev, "failed to create sysfs entry\n");
- goto free_irq;
+ return ret;
}
ret = ab8500_fg_sysfs_psy_create_attrs(di);
if (ret) {
dev_err(dev, "failed to create FG psy\n");
ab8500_fg_sysfs_exit(di);
- goto free_irq;
+ return ret;
}
/* Calibrate the fg first time */
/* Use room temp as default value until we get an update from driver. */
di->bat_temp = 210;
- /* Run the FG algorithm */
- queue_delayed_work(di->fg_wq, &di->fg_periodic_work, 0);
-
list_add_tail(&di->node, &ab8500_fg_list);
- return ret;
+ return component_add(dev, &ab8500_fg_component_ops);
+}
-free_irq:
- /* We also have to free all registered irqs */
- while (--i >= 0) {
- /* Last assignment of i from primary interrupt handlers */
- irq = platform_get_irq_byname(pdev, ab8500_fg_irq[i].name);
- free_irq(irq, di);
- }
+static int ab8500_fg_remove(struct platform_device *pdev)
+{
+ int ret = 0;
+ struct ab8500_fg *di = platform_get_drvdata(pdev);
+
+ component_del(&pdev->dev, &ab8500_fg_component_ops);
+ list_del(&di->node);
+ ab8500_fg_sysfs_exit(di);
+ ab8500_fg_sysfs_psy_remove_attrs(di);
- power_supply_unregister(di->fg_psy);
-free_inst_curr_wq:
- destroy_workqueue(di->fg_wq);
return ret;
}
{ .compatible = "stericsson,ab8500-fg", },
{ },
};
+MODULE_DEVICE_TABLE(of, ab8500_fg_match);
-static struct platform_driver ab8500_fg_driver = {
+struct platform_driver ab8500_fg_driver = {
.probe = ab8500_fg_probe,
.remove = ab8500_fg_remove,
.driver = {
.pm = &ab8500_fg_pm_ops,
},
};
-
-static int __init ab8500_fg_init(void)
-{
- return platform_driver_register(&ab8500_fg_driver);
-}
-
-static void __exit ab8500_fg_exit(void)
-{
- platform_driver_unregister(&ab8500_fg_driver);
-}
-
-subsys_initcall_sync(ab8500_fg_init);
-module_exit(ab8500_fg_exit);
-
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Johan Palsson, Karl Komierowski");
MODULE_ALIAS("platform:ab8500-fg");
#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
+#include <linux/component.h>
#include <linux/hrtimer.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
return 0;
}
-static int abx500_chargalg_remove(struct platform_device *pdev)
+static char *supply_interface[] = {
+ "ab8500_fg",
+};
+
+static const struct power_supply_desc abx500_chargalg_desc = {
+ .name = "abx500_chargalg",
+ .type = POWER_SUPPLY_TYPE_BATTERY,
+ .properties = abx500_chargalg_props,
+ .num_properties = ARRAY_SIZE(abx500_chargalg_props),
+ .get_property = abx500_chargalg_get_property,
+ .external_power_changed = abx500_chargalg_external_power_changed,
+};
+
+static int abx500_chargalg_bind(struct device *dev, struct device *master,
+ void *data)
{
- struct abx500_chargalg *di = platform_get_drvdata(pdev);
+ struct abx500_chargalg *di = dev_get_drvdata(dev);
- /* sysfs interface to enable/disbale charging from user space */
- abx500_chargalg_sysfs_exit(di);
+ /* Create a work queue for the chargalg */
+ di->chargalg_wq = alloc_ordered_workqueue("abx500_chargalg_wq",
+ WQ_MEM_RECLAIM);
+ if (di->chargalg_wq == NULL) {
+ dev_err(di->dev, "failed to create work queue\n");
+ return -ENOMEM;
+ }
+
+ /* Run the charging algorithm */
+ queue_delayed_work(di->chargalg_wq, &di->chargalg_periodic_work, 0);
+ return 0;
+}
+
+static void abx500_chargalg_unbind(struct device *dev, struct device *master,
+ void *data)
+{
+ struct abx500_chargalg *di = dev_get_drvdata(dev);
+
+ /* Stop all timers and work */
hrtimer_cancel(&di->safety_timer);
hrtimer_cancel(&di->maintenance_timer);
/* Delete the work queue */
destroy_workqueue(di->chargalg_wq);
-
- power_supply_unregister(di->chargalg_psy);
-
- return 0;
+ flush_scheduled_work();
}
-static char *supply_interface[] = {
- "ab8500_fg",
-};
-
-static const struct power_supply_desc abx500_chargalg_desc = {
- .name = "abx500_chargalg",
- .type = POWER_SUPPLY_TYPE_BATTERY,
- .properties = abx500_chargalg_props,
- .num_properties = ARRAY_SIZE(abx500_chargalg_props),
- .get_property = abx500_chargalg_get_property,
- .external_power_changed = abx500_chargalg_external_power_changed,
+static const struct component_ops abx500_chargalg_component_ops = {
+ .bind = abx500_chargalg_bind,
+ .unbind = abx500_chargalg_unbind,
};
static int abx500_chargalg_probe(struct platform_device *pdev)
{
- struct device_node *np = pdev->dev.of_node;
+ struct device *dev = &pdev->dev;
struct power_supply_config psy_cfg = {};
struct abx500_chargalg *di;
int ret = 0;
- di = devm_kzalloc(&pdev->dev, sizeof(*di), GFP_KERNEL);
- if (!di) {
- dev_err(&pdev->dev, "%s no mem for ab8500_chargalg\n", __func__);
+ di = devm_kzalloc(dev, sizeof(*di), GFP_KERNEL);
+ if (!di)
return -ENOMEM;
- }
di->bm = &ab8500_bm_data;
- ret = ab8500_bm_of_probe(&pdev->dev, np, di->bm);
- if (ret) {
- dev_err(&pdev->dev, "failed to get battery information\n");
- return ret;
- }
-
/* get device struct and parent */
- di->dev = &pdev->dev;
+ di->dev = dev;
di->parent = dev_get_drvdata(pdev->dev.parent);
psy_cfg.supplied_to = supply_interface;
di->maintenance_timer.function =
abx500_chargalg_maintenance_timer_expired;
- /* Create a work queue for the chargalg */
- di->chargalg_wq = alloc_ordered_workqueue("abx500_chargalg_wq",
- WQ_MEM_RECLAIM);
- if (di->chargalg_wq == NULL) {
- dev_err(di->dev, "failed to create work queue\n");
- return -ENOMEM;
- }
-
/* Init work for chargalg */
INIT_DEFERRABLE_WORK(&di->chargalg_periodic_work,
abx500_chargalg_periodic_work);
di->chg_info.prev_conn_chg = -1;
/* Register chargalg power supply class */
- di->chargalg_psy = power_supply_register(di->dev, &abx500_chargalg_desc,
+ di->chargalg_psy = devm_power_supply_register(di->dev,
+ &abx500_chargalg_desc,
&psy_cfg);
if (IS_ERR(di->chargalg_psy)) {
dev_err(di->dev, "failed to register chargalg psy\n");
- ret = PTR_ERR(di->chargalg_psy);
- goto free_chargalg_wq;
+ return PTR_ERR(di->chargalg_psy);
}
platform_set_drvdata(pdev, di);
ret = abx500_chargalg_sysfs_init(di);
if (ret) {
dev_err(di->dev, "failed to create sysfs entry\n");
- goto free_psy;
+ return ret;
}
di->curr_status.curr_step = CHARGALG_CURR_STEP_HIGH;
- /* Run the charging algorithm */
- queue_delayed_work(di->chargalg_wq, &di->chargalg_periodic_work, 0);
-
dev_info(di->dev, "probe success\n");
- return ret;
+ return component_add(dev, &abx500_chargalg_component_ops);
+}
-free_psy:
- power_supply_unregister(di->chargalg_psy);
-free_chargalg_wq:
- destroy_workqueue(di->chargalg_wq);
- return ret;
+static int abx500_chargalg_remove(struct platform_device *pdev)
+{
+ struct abx500_chargalg *di = platform_get_drvdata(pdev);
+
+ component_del(&pdev->dev, &abx500_chargalg_component_ops);
+
+ /* sysfs interface to enable/disable charging from user space */
+ abx500_chargalg_sysfs_exit(di);
+
+ return 0;
}
static SIMPLE_DEV_PM_OPS(abx500_chargalg_pm_ops, abx500_chargalg_suspend, abx500_chargalg_resume);
{ },
};
-static struct platform_driver abx500_chargalg_driver = {
+struct platform_driver abx500_chargalg_driver = {
.probe = abx500_chargalg_probe,
.remove = abx500_chargalg_remove,
.driver = {
.pm = &abx500_chargalg_pm_ops,
},
};
-
-module_platform_driver(abx500_chargalg_driver);
-
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Johan Palsson, Karl Komierowski");
MODULE_ALIAS("platform:abx500-chargalg");
#define AXP209_FG_PERCENT GENMASK(6, 0)
#define AXP22X_FG_VALID BIT(7)
+#define AXP20X_CHRG_CTRL1_ENABLE BIT(7)
#define AXP20X_CHRG_CTRL1_TGT_VOLT GENMASK(6, 5)
#define AXP20X_CHRG_CTRL1_TGT_4_1V (0 << 5)
#define AXP20X_CHRG_CTRL1_TGT_4_15V (1 << 5)
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
return axp20x_set_max_constant_charge_current(axp20x_batt,
val->intval);
-
+ case POWER_SUPPLY_PROP_STATUS:
+ switch (val->intval) {
+ case POWER_SUPPLY_STATUS_CHARGING:
+ return regmap_update_bits(axp20x_batt->regmap, AXP20X_CHRG_CTRL1,
+ AXP20X_CHRG_CTRL1_ENABLE, AXP20X_CHRG_CTRL1_ENABLE);
+
+ case POWER_SUPPLY_STATUS_DISCHARGING:
+ case POWER_SUPPLY_STATUS_NOT_CHARGING:
+ return regmap_update_bits(axp20x_batt->regmap, AXP20X_CHRG_CTRL1,
+ AXP20X_CHRG_CTRL1_ENABLE, 0);
+ }
+ fallthrough;
default:
return -EINVAL;
}
static int axp20x_battery_prop_writeable(struct power_supply *psy,
enum power_supply_property psp)
{
- return psp == POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN ||
+ return psp == POWER_SUPPLY_PROP_STATUS ||
+ psp == POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN ||
psp == POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN ||
psp == POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT ||
psp == POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX;
for (i = 0; i < NR_RETRY_CNT; i++) {
ret = regmap_read(info->regmap, reg, &val);
- if (ret == -EBUSY)
- continue;
- else
+ if (ret != -EBUSY)
break;
}
* detection reports one despite it not being there.
* Please keep this listed sorted alphabetically.
*/
-static const struct dmi_system_id axp288_fuel_gauge_blacklist[] = {
+static const struct dmi_system_id axp288_no_battery_list[] = {
{
/* ACEPC T8 Cherry Trail Z8350 mini PC */
.matches = {
DMI_MATCH(DMI_PRODUCT_NAME, "MEEGOPAD T02"),
},
},
- {
- /* Meegopad T08 */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Default string"),
- DMI_MATCH(DMI_BOARD_VENDOR, "To be filled by OEM."),
- DMI_MATCH(DMI_BOARD_NAME, "T3 MRD"),
- DMI_MATCH(DMI_BOARD_VERSION, "V1.1"),
- },
- },
{ /* Mele PCG03 Mini PC */
.matches = {
DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Mini PC"),
DMI_MATCH(DMI_PRODUCT_NAME, "Z83-4"),
}
},
+ {
+ /* Various Ace PC/Meegopad/MinisForum/Wintel Mini-PCs/HDMI-sticks */
+ .matches = {
+ DMI_MATCH(DMI_BOARD_NAME, "T3 MRD"),
+ DMI_MATCH(DMI_CHASSIS_TYPE, "3"),
+ DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."),
+ DMI_MATCH(DMI_BIOS_VERSION, "5.11"),
+ },
+ },
{}
};
};
unsigned int val;
- if (dmi_check_system(axp288_fuel_gauge_blacklist))
+ if (dmi_check_system(axp288_no_battery_list))
return -ENODEV;
/*
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-or-later
-//
-// Copyright (C) 2018 ROHM Semiconductors
-//
-// power-supply driver for ROHM BD70528 PMIC
-
-/*
- * BD70528 charger HW state machine.
- *
- * The thermal shutdown state is not drawn. From any other state but
- * battery error and suspend it is possible to go to TSD/TMP states
- * if temperature is out of bounds.
- *
- * CHG_RST = H
- * or CHG_EN=L
- * or (DCIN2_UVLO=L && DCIN1_UVLO=L)
- * or (DCIN2_OVLO=H & DCIN1_UVKLO=L)
- *
- * +--------------+ +--------------+
- * | | | |
- * | Any state +-------> | Suspend |
- * | | | |
- * +--------------+ +------+-------+
- * |
- * CHG_EN = H && BAT_DET = H && |
- * No errors (temp, bat_ov, UVLO, |
- * OVLO...) |
- * |
- * BAT_OV or +---------v----------+
- * (DBAT && TTRI) | |
- * +-----------------+ Trickle Charge | <---------------+
- * | | | |
- * | +-------+------------+ |
- * | | |
- * | | ^ |
- * | V_BAT > VTRI_TH | | VBAT < VTRI_TH - 50mV |
- * | | | |
- * | v | |
- * | | |
- * | BAT_OV or +----------+----+ |
- * | (DBAT && TFST) | | |
- * | +----------------+ Fast Charge | |
- * | | | | |
- * v v +----+----------+ |
- * | |
- *+----------------+ ILIM_DET=L | ^ ILIM_DET |
- *| | & CV_DET=H | | or CV_DET=L |
- *| Battery Error | & VBAT > | | or VBAT < VRECHG_TH |
- *| | VRECHG_TH | | or IBAT > IFST/x |
- *+----------------+ & IBAT < | | |
- * IFST/x v | |
- * ^ | |
- * | +---------+-+ |
- * | | | |
- * +-------------------+ Top OFF | |
- * BAT_OV = H or | | |
- * (DBAT && TFST) +-----+-----+ |
- * | |
- * Stay top-off for 15s | |
- * v |
- * |
- * +--------+ |
- * | | |
- * | Done +-------------------------+
- * | |
- * +--------+ VBAT < VRECHG_TH
- */
-
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/mfd/rohm-bd70528.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/power_supply.h>
-#include <linux/linear_range.h>
-
-#define CHG_STAT_SUSPEND 0x0
-#define CHG_STAT_TRICKLE 0x1
-#define CHG_STAT_FAST 0x3
-#define CHG_STAT_TOPOFF 0xe
-#define CHG_STAT_DONE 0xf
-#define CHG_STAT_OTP_TRICKLE 0x10
-#define CHG_STAT_OTP_FAST 0x11
-#define CHG_STAT_OTP_DONE 0x12
-#define CHG_STAT_TSD_TRICKLE 0x20
-#define CHG_STAT_TSD_FAST 0x21
-#define CHG_STAT_TSD_TOPOFF 0x22
-#define CHG_STAT_BAT_ERR 0x7f
-
-static const char *bd70528_charger_model = "BD70528";
-static const char *bd70528_charger_manufacturer = "ROHM Semiconductors";
-
-#define BD_ERR_IRQ_HND(_name_, _wrn_) \
-static irqreturn_t bd0528_##_name_##_interrupt(int irq, void *arg) \
-{ \
- struct power_supply *psy = (struct power_supply *)arg; \
- \
- power_supply_changed(psy); \
- dev_err(&psy->dev, (_wrn_)); \
- \
- return IRQ_HANDLED; \
-}
-
-#define BD_INFO_IRQ_HND(_name_, _wrn_) \
-static irqreturn_t bd0528_##_name_##_interrupt(int irq, void *arg) \
-{ \
- struct power_supply *psy = (struct power_supply *)arg; \
- \
- power_supply_changed(psy); \
- dev_dbg(&psy->dev, (_wrn_)); \
- \
- return IRQ_HANDLED; \
-}
-
-#define BD_IRQ_HND(_name_) bd0528_##_name_##_interrupt
-
-struct bd70528_psy {
- struct regmap *regmap;
- struct device *dev;
- struct power_supply *psy;
-};
-
-BD_ERR_IRQ_HND(BAT_OV_DET, "Battery overvoltage detected\n");
-BD_ERR_IRQ_HND(DBAT_DET, "Dead battery detected\n");
-BD_ERR_IRQ_HND(COLD_DET, "Battery cold\n");
-BD_ERR_IRQ_HND(HOT_DET, "Battery hot\n");
-BD_ERR_IRQ_HND(CHG_TSD, "Charger thermal shutdown\n");
-BD_ERR_IRQ_HND(DCIN2_OV_DET, "DCIN2 overvoltage detected\n");
-
-BD_INFO_IRQ_HND(BAT_OV_RES, "Battery voltage back to normal\n");
-BD_INFO_IRQ_HND(COLD_RES, "Battery temperature back to normal\n");
-BD_INFO_IRQ_HND(HOT_RES, "Battery temperature back to normal\n");
-BD_INFO_IRQ_HND(BAT_RMV, "Battery removed\n");
-BD_INFO_IRQ_HND(BAT_DET, "Battery detected\n");
-BD_INFO_IRQ_HND(DCIN2_OV_RES, "DCIN2 voltage back to normal\n");
-BD_INFO_IRQ_HND(DCIN2_RMV, "DCIN2 removed\n");
-BD_INFO_IRQ_HND(DCIN2_DET, "DCIN2 detected\n");
-BD_INFO_IRQ_HND(DCIN1_RMV, "DCIN1 removed\n");
-BD_INFO_IRQ_HND(DCIN1_DET, "DCIN1 detected\n");
-
-struct irq_name_pair {
- const char *n;
- irqreturn_t (*h)(int irq, void *arg);
-};
-
-static int bd70528_get_irqs(struct platform_device *pdev,
- struct bd70528_psy *bdpsy)
-{
- int irq, i, ret;
- unsigned int mask;
- static const struct irq_name_pair bd70528_chg_irqs[] = {
- { .n = "bd70528-bat-ov-res", .h = BD_IRQ_HND(BAT_OV_RES) },
- { .n = "bd70528-bat-ov-det", .h = BD_IRQ_HND(BAT_OV_DET) },
- { .n = "bd70528-bat-dead", .h = BD_IRQ_HND(DBAT_DET) },
- { .n = "bd70528-bat-warmed", .h = BD_IRQ_HND(COLD_RES) },
- { .n = "bd70528-bat-cold", .h = BD_IRQ_HND(COLD_DET) },
- { .n = "bd70528-bat-cooled", .h = BD_IRQ_HND(HOT_RES) },
- { .n = "bd70528-bat-hot", .h = BD_IRQ_HND(HOT_DET) },
- { .n = "bd70528-chg-tshd", .h = BD_IRQ_HND(CHG_TSD) },
- { .n = "bd70528-bat-removed", .h = BD_IRQ_HND(BAT_RMV) },
- { .n = "bd70528-bat-detected", .h = BD_IRQ_HND(BAT_DET) },
- { .n = "bd70528-dcin2-ov-res", .h = BD_IRQ_HND(DCIN2_OV_RES) },
- { .n = "bd70528-dcin2-ov-det", .h = BD_IRQ_HND(DCIN2_OV_DET) },
- { .n = "bd70528-dcin2-removed", .h = BD_IRQ_HND(DCIN2_RMV) },
- { .n = "bd70528-dcin2-detected", .h = BD_IRQ_HND(DCIN2_DET) },
- { .n = "bd70528-dcin1-removed", .h = BD_IRQ_HND(DCIN1_RMV) },
- { .n = "bd70528-dcin1-detected", .h = BD_IRQ_HND(DCIN1_DET) },
- };
-
- for (i = 0; i < ARRAY_SIZE(bd70528_chg_irqs); i++) {
- irq = platform_get_irq_byname(pdev, bd70528_chg_irqs[i].n);
- if (irq < 0) {
- dev_err(&pdev->dev, "Bad IRQ information for %s (%d)\n",
- bd70528_chg_irqs[i].n, irq);
- return irq;
- }
- ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
- bd70528_chg_irqs[i].h,
- IRQF_ONESHOT,
- bd70528_chg_irqs[i].n,
- bdpsy->psy);
-
- if (ret)
- return ret;
- }
- /*
- * BD70528 irq controller is not touching the main mask register.
- * So enable the charger block interrupts at main level. We can just
- * leave them enabled as irq-controller should disable irqs
- * from sub-registers when IRQ is disabled or freed.
- */
- mask = BD70528_REG_INT_BAT1_MASK | BD70528_REG_INT_BAT2_MASK;
- ret = regmap_update_bits(bdpsy->regmap,
- BD70528_REG_INT_MAIN_MASK, mask, 0);
- if (ret)
- dev_err(&pdev->dev, "Failed to enable charger IRQs\n");
-
- return ret;
-}
-
-static int bd70528_get_charger_status(struct bd70528_psy *bdpsy, int *val)
-{
- int ret;
- unsigned int v;
-
- ret = regmap_read(bdpsy->regmap, BD70528_REG_CHG_CURR_STAT, &v);
- if (ret) {
- dev_err(bdpsy->dev, "Charger state read failure %d\n",
- ret);
- return ret;
- }
-
- switch (v & BD70528_MASK_CHG_STAT) {
- case CHG_STAT_SUSPEND:
- /* Maybe we should check the CHG_TTRI_EN? */
- case CHG_STAT_OTP_TRICKLE:
- case CHG_STAT_OTP_FAST:
- case CHG_STAT_OTP_DONE:
- case CHG_STAT_TSD_TRICKLE:
- case CHG_STAT_TSD_FAST:
- case CHG_STAT_TSD_TOPOFF:
- case CHG_STAT_BAT_ERR:
- *val = POWER_SUPPLY_STATUS_NOT_CHARGING;
- break;
- case CHG_STAT_DONE:
- *val = POWER_SUPPLY_STATUS_FULL;
- break;
- case CHG_STAT_TRICKLE:
- case CHG_STAT_FAST:
- case CHG_STAT_TOPOFF:
- *val = POWER_SUPPLY_STATUS_CHARGING;
- break;
- default:
- *val = POWER_SUPPLY_STATUS_UNKNOWN;
- break;
- }
-
- return 0;
-}
-
-static int bd70528_get_charge_type(struct bd70528_psy *bdpsy, int *val)
-{
- int ret;
- unsigned int v;
-
- ret = regmap_read(bdpsy->regmap, BD70528_REG_CHG_CURR_STAT, &v);
- if (ret) {
- dev_err(bdpsy->dev, "Charger state read failure %d\n",
- ret);
- return ret;
- }
-
- switch (v & BD70528_MASK_CHG_STAT) {
- case CHG_STAT_TRICKLE:
- *val = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
- break;
- case CHG_STAT_FAST:
- case CHG_STAT_TOPOFF:
- *val = POWER_SUPPLY_CHARGE_TYPE_FAST;
- break;
- case CHG_STAT_DONE:
- case CHG_STAT_SUSPEND:
- /* Maybe we should check the CHG_TTRI_EN? */
- case CHG_STAT_OTP_TRICKLE:
- case CHG_STAT_OTP_FAST:
- case CHG_STAT_OTP_DONE:
- case CHG_STAT_TSD_TRICKLE:
- case CHG_STAT_TSD_FAST:
- case CHG_STAT_TSD_TOPOFF:
- case CHG_STAT_BAT_ERR:
- *val = POWER_SUPPLY_CHARGE_TYPE_NONE;
- break;
- default:
- *val = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN;
- break;
- }
-
- return 0;
-}
-
-static int bd70528_get_battery_health(struct bd70528_psy *bdpsy, int *val)
-{
- int ret;
- unsigned int v;
-
- ret = regmap_read(bdpsy->regmap, BD70528_REG_CHG_BAT_STAT, &v);
- if (ret) {
- dev_err(bdpsy->dev, "Battery state read failure %d\n",
- ret);
- return ret;
- }
- /* No battery? */
- if (!(v & BD70528_MASK_CHG_BAT_DETECT))
- *val = POWER_SUPPLY_HEALTH_DEAD;
- else if (v & BD70528_MASK_CHG_BAT_OVERVOLT)
- *val = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
- else if (v & BD70528_MASK_CHG_BAT_TIMER)
- *val = POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE;
- else
- *val = POWER_SUPPLY_HEALTH_GOOD;
-
- return 0;
-}
-
-static int bd70528_get_online(struct bd70528_psy *bdpsy, int *val)
-{
- int ret;
- unsigned int v;
-
- ret = regmap_read(bdpsy->regmap, BD70528_REG_CHG_IN_STAT, &v);
- if (ret) {
- dev_err(bdpsy->dev, "DC1 IN state read failure %d\n",
- ret);
- return ret;
- }
-
- *val = (v & BD70528_MASK_CHG_DCIN1_UVLO) ? 1 : 0;
-
- return 0;
-}
-
-static int bd70528_get_present(struct bd70528_psy *bdpsy, int *val)
-{
- int ret;
- unsigned int v;
-
- ret = regmap_read(bdpsy->regmap, BD70528_REG_CHG_BAT_STAT, &v);
- if (ret) {
- dev_err(bdpsy->dev, "Battery state read failure %d\n",
- ret);
- return ret;
- }
-
- *val = (v & BD70528_MASK_CHG_BAT_DETECT) ? 1 : 0;
-
- return 0;
-}
-
-static const struct linear_range current_limit_ranges[] = {
- {
- .min = 5,
- .step = 1,
- .min_sel = 0,
- .max_sel = 0x22,
- },
- {
- .min = 40,
- .step = 5,
- .min_sel = 0x23,
- .max_sel = 0x26,
- },
- {
- .min = 60,
- .step = 20,
- .min_sel = 0x27,
- .max_sel = 0x2d,
- },
- {
- .min = 200,
- .step = 50,
- .min_sel = 0x2e,
- .max_sel = 0x34,
- },
- {
- .min = 500,
- .step = 0,
- .min_sel = 0x35,
- .max_sel = 0x3f,
- },
-};
-
-/*
- * BD70528 would support setting and getting own charge current/
- * voltage for low temperatures. The driver currently only reads
- * the charge current at room temperature. We do set both though.
- */
-static const struct linear_range warm_charge_curr[] = {
- {
- .min = 10,
- .step = 10,
- .min_sel = 0,
- .max_sel = 0x12,
- },
- {
- .min = 200,
- .step = 25,
- .min_sel = 0x13,
- .max_sel = 0x1f,
- },
-};
-
-/*
- * Cold charge current selectors are identical to warm charge current
- * selectors. The difference is that only smaller currents are available
- * at cold charge range.
- */
-#define MAX_COLD_CHG_CURR_SEL 0x15
-#define MAX_WARM_CHG_CURR_SEL 0x1f
-#define MIN_CHG_CURR_SEL 0x0
-
-static int get_charge_current(struct bd70528_psy *bdpsy, int *ma)
-{
- unsigned int sel;
- int ret;
-
- ret = regmap_read(bdpsy->regmap, BD70528_REG_CHG_CHG_CURR_WARM,
- &sel);
- if (ret) {
- dev_err(bdpsy->dev,
- "Charge current reading failed (%d)\n", ret);
- return ret;
- }
-
- sel &= BD70528_MASK_CHG_CHG_CURR;
-
- ret = linear_range_get_value_array(&warm_charge_curr[0],
- ARRAY_SIZE(warm_charge_curr),
- sel, ma);
- if (ret) {
- dev_err(bdpsy->dev,
- "Unknown charge current value 0x%x\n",
- sel);
- }
-
- return ret;
-}
-
-static int get_current_limit(struct bd70528_psy *bdpsy, int *ma)
-{
- unsigned int sel;
- int ret;
-
- ret = regmap_read(bdpsy->regmap, BD70528_REG_CHG_DCIN_ILIM,
- &sel);
-
- if (ret) {
- dev_err(bdpsy->dev,
- "Input current limit reading failed (%d)\n", ret);
- return ret;
- }
-
- sel &= BD70528_MASK_CHG_DCIN_ILIM;
-
- ret = linear_range_get_value_array(¤t_limit_ranges[0],
- ARRAY_SIZE(current_limit_ranges),
- sel, ma);
- if (ret) {
- /* Unspecified values mean 500 mA */
- *ma = 500;
- }
- return 0;
-}
-
-static enum power_supply_property bd70528_charger_props[] = {
- POWER_SUPPLY_PROP_STATUS,
- POWER_SUPPLY_PROP_CHARGE_TYPE,
- POWER_SUPPLY_PROP_HEALTH,
- POWER_SUPPLY_PROP_PRESENT,
- POWER_SUPPLY_PROP_ONLINE,
- POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
- POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
- POWER_SUPPLY_PROP_MODEL_NAME,
- POWER_SUPPLY_PROP_MANUFACTURER,
-};
-
-static int bd70528_charger_get_property(struct power_supply *psy,
- enum power_supply_property psp,
- union power_supply_propval *val)
-{
- struct bd70528_psy *bdpsy = power_supply_get_drvdata(psy);
- int ret = 0;
-
- switch (psp) {
- case POWER_SUPPLY_PROP_STATUS:
- return bd70528_get_charger_status(bdpsy, &val->intval);
- case POWER_SUPPLY_PROP_CHARGE_TYPE:
- return bd70528_get_charge_type(bdpsy, &val->intval);
- case POWER_SUPPLY_PROP_HEALTH:
- return bd70528_get_battery_health(bdpsy, &val->intval);
- case POWER_SUPPLY_PROP_PRESENT:
- return bd70528_get_present(bdpsy, &val->intval);
- case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
- ret = get_current_limit(bdpsy, &val->intval);
- val->intval *= 1000;
- return ret;
- case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
- ret = get_charge_current(bdpsy, &val->intval);
- val->intval *= 1000;
- return ret;
- case POWER_SUPPLY_PROP_ONLINE:
- return bd70528_get_online(bdpsy, &val->intval);
- case POWER_SUPPLY_PROP_MODEL_NAME:
- val->strval = bd70528_charger_model;
- return 0;
- case POWER_SUPPLY_PROP_MANUFACTURER:
- val->strval = bd70528_charger_manufacturer;
- return 0;
- default:
- break;
- }
-
- return -EINVAL;
-}
-
-static int bd70528_prop_is_writable(struct power_supply *psy,
- enum power_supply_property psp)
-{
- switch (psp) {
- case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
- case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
- return 1;
- default:
- break;
- }
- return 0;
-}
-
-static int set_charge_current(struct bd70528_psy *bdpsy, int ma)
-{
- unsigned int reg;
- int ret = 0, tmpret;
- bool found;
-
- if (ma > 500) {
- dev_warn(bdpsy->dev,
- "Requested charge current %u exceed maximum (500mA)\n",
- ma);
- reg = MAX_WARM_CHG_CURR_SEL;
- goto set;
- }
- if (ma < 10) {
- dev_err(bdpsy->dev,
- "Requested charge current %u smaller than min (10mA)\n",
- ma);
- reg = MIN_CHG_CURR_SEL;
- ret = -EINVAL;
- goto set;
- }
-
-/*
- * For BD70528 voltage/current limits we happily accept any value which
- * belongs the range. We could check if value matching the selector is
- * desired by computing the range min + (sel - sel_low) * range step - but
- * I guess it is enough if we use voltage/current which is closest (below)
- * the requested?
- */
-
- ret = linear_range_get_selector_low_array(warm_charge_curr,
- ARRAY_SIZE(warm_charge_curr),
- ma, ®, &found);
- if (ret) {
- dev_err(bdpsy->dev,
- "Unsupported charge current %u mA\n", ma);
- reg = MIN_CHG_CURR_SEL;
- goto set;
- }
- if (!found) {
- /*
- * There was a gap in supported values and we hit it.
- * Yet a smaller value was found so we use it.
- */
- dev_warn(bdpsy->dev,
- "Unsupported charge current %u mA\n", ma);
- }
-set:
-
- tmpret = regmap_update_bits(bdpsy->regmap,
- BD70528_REG_CHG_CHG_CURR_WARM,
- BD70528_MASK_CHG_CHG_CURR, reg);
- if (tmpret)
- dev_err(bdpsy->dev,
- "Charge current write failure (%d)\n", tmpret);
-
- if (reg > MAX_COLD_CHG_CURR_SEL)
- reg = MAX_COLD_CHG_CURR_SEL;
-
- if (!tmpret)
- tmpret = regmap_update_bits(bdpsy->regmap,
- BD70528_REG_CHG_CHG_CURR_COLD,
- BD70528_MASK_CHG_CHG_CURR, reg);
-
- if (!ret)
- ret = tmpret;
-
- return ret;
-}
-
-#define MAX_CURR_LIMIT_SEL 0x34
-#define MIN_CURR_LIMIT_SEL 0x0
-
-static int set_current_limit(struct bd70528_psy *bdpsy, int ma)
-{
- unsigned int reg;
- int ret = 0, tmpret;
- bool found;
-
- if (ma > 500) {
- dev_warn(bdpsy->dev,
- "Requested current limit %u exceed maximum (500mA)\n",
- ma);
- reg = MAX_CURR_LIMIT_SEL;
- goto set;
- }
- if (ma < 5) {
- dev_err(bdpsy->dev,
- "Requested current limit %u smaller than min (5mA)\n",
- ma);
- reg = MIN_CURR_LIMIT_SEL;
- ret = -EINVAL;
- goto set;
- }
-
- ret = linear_range_get_selector_low_array(current_limit_ranges,
- ARRAY_SIZE(current_limit_ranges),
- ma, ®, &found);
- if (ret) {
- dev_err(bdpsy->dev, "Unsupported current limit %umA\n", ma);
- reg = MIN_CURR_LIMIT_SEL;
- goto set;
- }
- if (!found) {
- /*
- * There was a gap in supported values and we hit it.
- * We found a smaller value from ranges and use it.
- * Warn user though.
- */
- dev_warn(bdpsy->dev, "Unsupported current limit %umA\n", ma);
- }
-
-set:
- tmpret = regmap_update_bits(bdpsy->regmap,
- BD70528_REG_CHG_DCIN_ILIM,
- BD70528_MASK_CHG_DCIN_ILIM, reg);
-
- if (!ret)
- ret = tmpret;
-
- return ret;
-}
-
-static int bd70528_charger_set_property(struct power_supply *psy,
- enum power_supply_property psp,
- const union power_supply_propval *val)
-{
- struct bd70528_psy *bdpsy = power_supply_get_drvdata(psy);
-
- switch (psp) {
- case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
- return set_current_limit(bdpsy, val->intval / 1000);
- case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
- return set_charge_current(bdpsy, val->intval / 1000);
- default:
- break;
- }
- return -EINVAL;
-}
-
-static const struct power_supply_desc bd70528_charger_desc = {
- .name = "bd70528-charger",
- .type = POWER_SUPPLY_TYPE_MAINS,
- .properties = bd70528_charger_props,
- .num_properties = ARRAY_SIZE(bd70528_charger_props),
- .get_property = bd70528_charger_get_property,
- .set_property = bd70528_charger_set_property,
- .property_is_writeable = bd70528_prop_is_writable,
-};
-
-static int bd70528_power_probe(struct platform_device *pdev)
-{
- struct bd70528_psy *bdpsy;
- struct power_supply_config cfg = {};
-
- bdpsy = devm_kzalloc(&pdev->dev, sizeof(*bdpsy), GFP_KERNEL);
- if (!bdpsy)
- return -ENOMEM;
-
- bdpsy->regmap = dev_get_regmap(pdev->dev.parent, NULL);
- if (!bdpsy->regmap) {
- dev_err(&pdev->dev, "No regmap found for chip\n");
- return -EINVAL;
- }
- bdpsy->dev = &pdev->dev;
-
- platform_set_drvdata(pdev, bdpsy);
- cfg.drv_data = bdpsy;
- cfg.of_node = pdev->dev.parent->of_node;
-
- bdpsy->psy = devm_power_supply_register(&pdev->dev,
- &bd70528_charger_desc, &cfg);
- if (IS_ERR(bdpsy->psy)) {
- dev_err(&pdev->dev, "failed: power supply register\n");
- return PTR_ERR(bdpsy->psy);
- }
-
- return bd70528_get_irqs(pdev, bdpsy);
-}
-
-static struct platform_driver bd70528_power = {
- .driver = {
- .name = "bd70528-power"
- },
- .probe = bd70528_power_probe,
-};
-
-module_platform_driver(bd70528_power);
-
-MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
-MODULE_DESCRIPTION("BD70528 power-supply driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:bd70528-power");
* Author: Mark A. Greer <mgreer@animalcreek.com>
*/
+#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
-#include <linux/of_irq.h>
-#include <linux/of_device.h>
#include <linux/pm_runtime.h>
#include <linux/power_supply.h>
#include <linux/power/bq24190_charger.h>
};
MODULE_DEVICE_TABLE(i2c, bq24190_i2c_ids);
-#ifdef CONFIG_OF
static const struct of_device_id bq24190_of_match[] = {
{ .compatible = "ti,bq24190", },
{ .compatible = "ti,bq24192", },
{ },
};
MODULE_DEVICE_TABLE(of, bq24190_of_match);
-#else
-static const struct of_device_id bq24190_of_match[] = {
- { },
-};
-#endif
static struct i2c_driver bq24190_driver = {
.probe = bq24190_probe,
.driver = {
.name = "bq24190-charger",
.pm = &bq24190_pm_ops,
- .of_match_table = of_match_ptr(bq24190_of_match),
+ .of_match_table = bq24190_of_match,
},
};
module_i2c_driver(bq24190_driver);
},
{},
};
+MODULE_DEVICE_TABLE(of, charger_manager_match);
static struct charger_desc *of_cm_parse_desc(struct device *dev)
{
if (!empty->voltage)
return -ENODATA;
val->intval = empty->counter_uah - latest->counter_uah;
- if (val->intval < 0)
+ if (val->intval < 0) {
+ /* Assume invalid config if CHARGE_NOW is -20% */
+ if (ddata->charge_full && abs(val->intval) > ddata->charge_full/5) {
+ empty->voltage = 0;
+ ddata->charge_full = 0;
+ return -ENODATA;
+ }
val->intval = 0;
- else if (ddata->charge_full && ddata->charge_full < val->intval)
+ } else if (ddata->charge_full && ddata->charge_full < val->intval) {
+ /* Assume invalid config if CHARGE_NOW exceeds CHARGE_FULL by 20% */
+ if (val->intval > (6*ddata->charge_full)/5) {
+ empty->voltage = 0;
+ ddata->charge_full = 0;
+ return -ENODATA;
+ }
val->intval = ddata->charge_full;
+ }
break;
case POWER_SUPPLY_PROP_CHARGE_FULL:
if (!ddata->charge_full)
case POWER_SUPPLY_PROP_CHARGE_FULL:
if (val->intval < 0)
return -EINVAL;
- if (val->intval > ddata->config.info.charge_full_design)
+ if (val->intval > (6*ddata->config.info.charge_full_design)/5)
return -EINVAL;
ddata->charge_full = val->intval;
POWER_SUPPLY_PROP_CURRENT_NOW,
};
-/* No battery always shows temperature of -40000 */
-static bool cpcap_charger_battery_found(struct cpcap_charger_ddata *ddata)
-{
- struct iio_channel *channel;
- int error, temperature;
-
- channel = ddata->channels[CPCAP_CHARGER_IIO_BATTDET];
- error = iio_read_channel_processed(channel, &temperature);
- if (error < 0) {
- dev_warn(ddata->dev, "%s failed: %i\n", __func__, error);
-
- return false;
- }
-
- return temperature > -20000 && temperature < 60000;
-}
-
static int cpcap_charger_get_charge_voltage(struct cpcap_charger_ddata *ddata)
{
struct iio_channel *channel;
if (!ddata->feeding_vbus && cpcap_charger_vbus_valid(ddata) &&
s.chrgcurr1) {
- int max_current = 532000;
+ int max_current;
int vchrg, ichrg;
+ union power_supply_propval val;
+ struct power_supply *battery;
- if (cpcap_charger_battery_found(ddata))
+ battery = power_supply_get_by_name("battery");
+ if (IS_ERR_OR_NULL(battery)) {
+ dev_err(ddata->dev, "battery power_supply not available %li\n",
+ PTR_ERR(battery));
+ return;
+ }
+
+ error = power_supply_get_property(battery, POWER_SUPPLY_PROP_PRESENT, &val);
+ power_supply_put(battery);
+ if (error)
+ goto out_err;
+
+ if (val.intval) {
max_current = 1596000;
+ } else {
+ dev_info(ddata->dev, "battery not inserted, charging disabled\n");
+ max_current = 0;
+ }
if (max_current > ddata->limit_current)
max_current = ddata->limit_current;
#include <linux/interrupt.h>
#include <linux/power_supply.h>
#include <linux/of_device.h>
-#include <linux/max17040_battery.h>
#include <linux/regmap.h>
#include <linux/slab.h>
struct regmap *regmap;
struct delayed_work work;
struct power_supply *battery;
- struct max17040_platform_data *pdata;
struct chip_data data;
/* battery capacity */
int soc;
- /* State Of Charge */
- int status;
/* Low alert threshold from 32% to 1% of the State of Charge */
u32 low_soc_alert;
/* some devices return twice the capacity */
static int max17040_get_online(struct max17040_chip *chip)
{
- return chip->pdata && chip->pdata->battery_online ?
- chip->pdata->battery_online() : 1;
-}
-
-static int max17040_get_status(struct max17040_chip *chip)
-{
- if (!chip->pdata || !chip->pdata->charger_online
- || !chip->pdata->charger_enable)
- return POWER_SUPPLY_STATUS_UNKNOWN;
-
- if (max17040_get_soc(chip) > MAX17040_BATTERY_FULL)
- return POWER_SUPPLY_STATUS_FULL;
-
- if (chip->pdata->charger_online())
- if (chip->pdata->charger_enable())
- return POWER_SUPPLY_STATUS_CHARGING;
- else
- return POWER_SUPPLY_STATUS_NOT_CHARGING;
- else
- return POWER_SUPPLY_STATUS_DISCHARGING;
+ return 1;
}
static int max17040_get_of_data(struct max17040_chip *chip)
static void max17040_check_changes(struct max17040_chip *chip)
{
chip->soc = max17040_get_soc(chip);
- chip->status = max17040_get_status(chip);
}
static void max17040_queue_work(struct max17040_chip *chip)
static void max17040_work(struct work_struct *work)
{
struct max17040_chip *chip;
- int last_soc, last_status;
+ int last_soc;
chip = container_of(work, struct max17040_chip, work.work);
- /* store SOC and status to check changes */
+ /* store SOC to check changes */
last_soc = chip->soc;
- last_status = chip->status;
max17040_check_changes(chip);
/* check changes and send uevent */
- if (last_soc != chip->soc || last_status != chip->status)
+ if (last_soc != chip->soc)
power_supply_changed(chip->battery);
max17040_queue_work(chip);
static int max17040_enable_alert_irq(struct max17040_chip *chip)
{
struct i2c_client *client = chip->client;
- unsigned int flags;
int ret;
- flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
ret = devm_request_threaded_irq(&client->dev, client->irq, NULL,
- max17040_thread_handler, flags,
+ max17040_thread_handler, IRQF_ONESHOT,
chip->battery->desc->name, chip);
return ret;
struct max17040_chip *chip = power_supply_get_drvdata(psy);
switch (psp) {
- case POWER_SUPPLY_PROP_STATUS:
- val->intval = max17040_get_status(chip);
- break;
case POWER_SUPPLY_PROP_ONLINE:
val->intval = max17040_get_online(chip);
break;
};
static enum power_supply_property max17040_battery_props[] = {
- POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_ONLINE,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_CAPACITY,
chip->client = client;
chip->regmap = devm_regmap_init_i2c(client, &max17040_regmap);
- chip->pdata = client->dev.platform_data;
chip_id = (enum chip_id) id->driver_data;
if (client->dev.of_node) {
ret = max17040_get_of_data(chip);
}
if (client->irq) {
- unsigned int flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
+ unsigned int flags = IRQF_ONESHOT;
/*
* On ACPI systems the IRQ may be handled by ACPI-event code,
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright 2012 ST Ericsson.
- *
- * Power supply driver for ST Ericsson pm2xxx_charger charger
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/platform_device.h>
-#include <linux/power_supply.h>
-#include <linux/regulator/consumer.h>
-#include <linux/err.h>
-#include <linux/i2c.h>
-#include <linux/workqueue.h>
-#include <linux/mfd/abx500/ab8500.h>
-#include <linux/pm2301_charger.h>
-#include <linux/gpio.h>
-#include <linux/pm_runtime.h>
-#include <linux/pm.h>
-
-#include "ab8500-bm.h"
-#include "ab8500-chargalg.h"
-#include "pm2301_charger.h"
-
-#define to_pm2xxx_charger_ac_device_info(x) container_of((x), \
- struct pm2xxx_charger, ac_chg)
-#define SLEEP_MIN 50
-#define SLEEP_MAX 100
-#define PM2XXX_AUTOSUSPEND_DELAY 500
-
-static int pm2xxx_interrupt_registers[] = {
- PM2XXX_REG_INT1,
- PM2XXX_REG_INT2,
- PM2XXX_REG_INT3,
- PM2XXX_REG_INT4,
- PM2XXX_REG_INT5,
- PM2XXX_REG_INT6,
-};
-
-static enum power_supply_property pm2xxx_charger_ac_props[] = {
- POWER_SUPPLY_PROP_HEALTH,
- POWER_SUPPLY_PROP_PRESENT,
- POWER_SUPPLY_PROP_ONLINE,
- POWER_SUPPLY_PROP_VOLTAGE_AVG,
-};
-
-static int pm2xxx_charger_voltage_map[] = {
- 3500,
- 3525,
- 3550,
- 3575,
- 3600,
- 3625,
- 3650,
- 3675,
- 3700,
- 3725,
- 3750,
- 3775,
- 3800,
- 3825,
- 3850,
- 3875,
- 3900,
- 3925,
- 3950,
- 3975,
- 4000,
- 4025,
- 4050,
- 4075,
- 4100,
- 4125,
- 4150,
- 4175,
- 4200,
- 4225,
- 4250,
- 4275,
- 4300,
-};
-
-static int pm2xxx_charger_current_map[] = {
- 200,
- 200,
- 400,
- 600,
- 800,
- 1000,
- 1200,
- 1400,
- 1600,
- 1800,
- 2000,
- 2200,
- 2400,
- 2600,
- 2800,
- 3000,
-};
-
-static void set_lpn_pin(struct pm2xxx_charger *pm2)
-{
- if (!pm2->ac.charger_connected && gpio_is_valid(pm2->lpn_pin)) {
- gpio_set_value(pm2->lpn_pin, 1);
- usleep_range(SLEEP_MIN, SLEEP_MAX);
- }
-}
-
-static void clear_lpn_pin(struct pm2xxx_charger *pm2)
-{
- if (!pm2->ac.charger_connected && gpio_is_valid(pm2->lpn_pin))
- gpio_set_value(pm2->lpn_pin, 0);
-}
-
-static int pm2xxx_reg_read(struct pm2xxx_charger *pm2, int reg, u8 *val)
-{
- int ret;
-
- /* wake up the device */
- pm_runtime_get_sync(pm2->dev);
-
- ret = i2c_smbus_read_i2c_block_data(pm2->config.pm2xxx_i2c, reg,
- 1, val);
- if (ret < 0)
- dev_err(pm2->dev, "Error reading register at 0x%x\n", reg);
- else
- ret = 0;
-
- pm_runtime_put_sync(pm2->dev);
-
- return ret;
-}
-
-static int pm2xxx_reg_write(struct pm2xxx_charger *pm2, int reg, u8 val)
-{
- int ret;
-
- /* wake up the device */
- pm_runtime_get_sync(pm2->dev);
-
- ret = i2c_smbus_write_i2c_block_data(pm2->config.pm2xxx_i2c, reg,
- 1, &val);
- if (ret < 0)
- dev_err(pm2->dev, "Error writing register at 0x%x\n", reg);
- else
- ret = 0;
-
- pm_runtime_put_sync(pm2->dev);
-
- return ret;
-}
-
-static int pm2xxx_charging_enable_mngt(struct pm2xxx_charger *pm2)
-{
- int ret;
-
- /* Enable charging */
- ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG2,
- (PM2XXX_CH_AUTO_RESUME_EN | PM2XXX_CHARGER_ENA));
-
- return ret;
-}
-
-static int pm2xxx_charging_disable_mngt(struct pm2xxx_charger *pm2)
-{
- int ret;
-
- /* Disable SW EOC ctrl */
- ret = pm2xxx_reg_write(pm2, PM2XXX_SW_CTRL_REG, PM2XXX_SWCTRL_HW);
- if (ret < 0) {
- dev_err(pm2->dev, "%s pm2xxx write failed\n", __func__);
- return ret;
- }
-
- /* Disable charging */
- ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG2,
- (PM2XXX_CH_AUTO_RESUME_DIS | PM2XXX_CHARGER_DIS));
- if (ret < 0) {
- dev_err(pm2->dev, "%s pm2xxx write failed\n", __func__);
- return ret;
- }
-
- return 0;
-}
-
-static int pm2xxx_charger_batt_therm_mngt(struct pm2xxx_charger *pm2, int val)
-{
- queue_work(pm2->charger_wq, &pm2->check_main_thermal_prot_work);
-
- return 0;
-}
-
-
-static int pm2xxx_charger_die_therm_mngt(struct pm2xxx_charger *pm2, int val)
-{
- queue_work(pm2->charger_wq, &pm2->check_main_thermal_prot_work);
-
- return 0;
-}
-
-static int pm2xxx_charger_ovv_mngt(struct pm2xxx_charger *pm2, int val)
-{
- dev_err(pm2->dev, "Overvoltage detected\n");
- pm2->flags.ovv = true;
- power_supply_changed(pm2->ac_chg.psy);
-
- /* Schedule a new HW failure check */
- queue_delayed_work(pm2->charger_wq, &pm2->check_hw_failure_work, 0);
-
- return 0;
-}
-
-static int pm2xxx_charger_wd_exp_mngt(struct pm2xxx_charger *pm2, int val)
-{
- dev_dbg(pm2->dev , "20 minutes watchdog expired\n");
-
- pm2->ac.wd_expired = true;
- power_supply_changed(pm2->ac_chg.psy);
-
- return 0;
-}
-
-static int pm2xxx_charger_vbat_lsig_mngt(struct pm2xxx_charger *pm2, int val)
-{
- int ret;
-
- switch (val) {
- case PM2XXX_INT1_ITVBATLOWR:
- dev_dbg(pm2->dev, "VBAT grows above VBAT_LOW level\n");
- /* Enable SW EOC ctrl */
- ret = pm2xxx_reg_write(pm2, PM2XXX_SW_CTRL_REG,
- PM2XXX_SWCTRL_SW);
- if (ret < 0) {
- dev_err(pm2->dev, "%s pm2xxx write failed\n", __func__);
- return ret;
- }
- break;
-
- case PM2XXX_INT1_ITVBATLOWF:
- dev_dbg(pm2->dev, "VBAT drops below VBAT_LOW level\n");
- /* Disable SW EOC ctrl */
- ret = pm2xxx_reg_write(pm2, PM2XXX_SW_CTRL_REG,
- PM2XXX_SWCTRL_HW);
- if (ret < 0) {
- dev_err(pm2->dev, "%s pm2xxx write failed\n", __func__);
- return ret;
- }
- break;
-
- default:
- dev_err(pm2->dev, "Unknown VBAT level\n");
- }
-
- return 0;
-}
-
-static int pm2xxx_charger_bat_disc_mngt(struct pm2xxx_charger *pm2, int val)
-{
- dev_dbg(pm2->dev, "battery disconnected\n");
-
- return 0;
-}
-
-static int pm2xxx_charger_detection(struct pm2xxx_charger *pm2, u8 *val)
-{
- int ret;
-
- ret = pm2xxx_reg_read(pm2, PM2XXX_SRCE_REG_INT2, val);
-
- if (ret < 0) {
- dev_err(pm2->dev, "Charger detection failed\n");
- goto out;
- }
-
- *val &= (PM2XXX_INT2_S_ITVPWR1PLUG | PM2XXX_INT2_S_ITVPWR2PLUG);
-
-out:
- return ret;
-}
-
-static int pm2xxx_charger_itv_pwr_plug_mngt(struct pm2xxx_charger *pm2, int val)
-{
-
- int ret;
- u8 read_val;
-
- /*
- * Since we can't be sure that the events are received
- * synchronously, we have the check if the main charger is
- * connected by reading the interrupt source register.
- */
- ret = pm2xxx_charger_detection(pm2, &read_val);
-
- if ((ret == 0) && read_val) {
- pm2->ac.charger_connected = 1;
- pm2->ac_conn = true;
- queue_work(pm2->charger_wq, &pm2->ac_work);
- }
-
-
- return ret;
-}
-
-static int pm2xxx_charger_itv_pwr_unplug_mngt(struct pm2xxx_charger *pm2,
- int val)
-{
- pm2->ac.charger_connected = 0;
- queue_work(pm2->charger_wq, &pm2->ac_work);
-
- return 0;
-}
-
-static int pm2_int_reg0(void *pm2_data, int val)
-{
- struct pm2xxx_charger *pm2 = pm2_data;
- int ret = 0;
-
- if (val & PM2XXX_INT1_ITVBATLOWR) {
- ret = pm2xxx_charger_vbat_lsig_mngt(pm2,
- PM2XXX_INT1_ITVBATLOWR);
- if (ret < 0)
- goto out;
- }
-
- if (val & PM2XXX_INT1_ITVBATLOWF) {
- ret = pm2xxx_charger_vbat_lsig_mngt(pm2,
- PM2XXX_INT1_ITVBATLOWF);
- if (ret < 0)
- goto out;
- }
-
- if (val & PM2XXX_INT1_ITVBATDISCONNECT) {
- ret = pm2xxx_charger_bat_disc_mngt(pm2,
- PM2XXX_INT1_ITVBATDISCONNECT);
- if (ret < 0)
- goto out;
- }
-out:
- return ret;
-}
-
-static int pm2_int_reg1(void *pm2_data, int val)
-{
- struct pm2xxx_charger *pm2 = pm2_data;
- int ret = 0;
-
- if (val & (PM2XXX_INT2_ITVPWR1PLUG | PM2XXX_INT2_ITVPWR2PLUG)) {
- dev_dbg(pm2->dev , "Main charger plugged\n");
- ret = pm2xxx_charger_itv_pwr_plug_mngt(pm2, val &
- (PM2XXX_INT2_ITVPWR1PLUG | PM2XXX_INT2_ITVPWR2PLUG));
- }
-
- if (val &
- (PM2XXX_INT2_ITVPWR1UNPLUG | PM2XXX_INT2_ITVPWR2UNPLUG)) {
- dev_dbg(pm2->dev , "Main charger unplugged\n");
- ret = pm2xxx_charger_itv_pwr_unplug_mngt(pm2, val &
- (PM2XXX_INT2_ITVPWR1UNPLUG |
- PM2XXX_INT2_ITVPWR2UNPLUG));
- }
-
- return ret;
-}
-
-static int pm2_int_reg2(void *pm2_data, int val)
-{
- struct pm2xxx_charger *pm2 = pm2_data;
- int ret = 0;
-
- if (val & PM2XXX_INT3_ITAUTOTIMEOUTWD)
- ret = pm2xxx_charger_wd_exp_mngt(pm2, val);
-
- if (val & (PM2XXX_INT3_ITCHPRECHARGEWD |
- PM2XXX_INT3_ITCHCCWD | PM2XXX_INT3_ITCHCVWD)) {
- dev_dbg(pm2->dev,
- "Watchdog occurred for precharge, CC and CV charge\n");
- }
-
- return ret;
-}
-
-static int pm2_int_reg3(void *pm2_data, int val)
-{
- struct pm2xxx_charger *pm2 = pm2_data;
- int ret = 0;
-
- if (val & (PM2XXX_INT4_ITCHARGINGON)) {
- dev_dbg(pm2->dev ,
- "charging operation has started\n");
- }
-
- if (val & (PM2XXX_INT4_ITVRESUME)) {
- dev_dbg(pm2->dev,
- "battery discharged down to VResume threshold\n");
- }
-
- if (val & (PM2XXX_INT4_ITBATTFULL)) {
- dev_dbg(pm2->dev , "battery fully detected\n");
- }
-
- if (val & (PM2XXX_INT4_ITCVPHASE)) {
- dev_dbg(pm2->dev, "CV phase enter with 0.5C charging\n");
- }
-
- if (val & (PM2XXX_INT4_ITVPWR2OVV | PM2XXX_INT4_ITVPWR1OVV)) {
- pm2->failure_case = VPWR_OVV;
- ret = pm2xxx_charger_ovv_mngt(pm2, val &
- (PM2XXX_INT4_ITVPWR2OVV | PM2XXX_INT4_ITVPWR1OVV));
- dev_dbg(pm2->dev, "VPWR/VSYSTEM overvoltage detected\n");
- }
-
- if (val & (PM2XXX_INT4_S_ITBATTEMPCOLD |
- PM2XXX_INT4_S_ITBATTEMPHOT)) {
- ret = pm2xxx_charger_batt_therm_mngt(pm2, val &
- (PM2XXX_INT4_S_ITBATTEMPCOLD |
- PM2XXX_INT4_S_ITBATTEMPHOT));
- dev_dbg(pm2->dev, "BTEMP is too Low/High\n");
- }
-
- return ret;
-}
-
-static int pm2_int_reg4(void *pm2_data, int val)
-{
- struct pm2xxx_charger *pm2 = pm2_data;
- int ret = 0;
-
- if (val & PM2XXX_INT5_ITVSYSTEMOVV) {
- pm2->failure_case = VSYSTEM_OVV;
- ret = pm2xxx_charger_ovv_mngt(pm2, val &
- PM2XXX_INT5_ITVSYSTEMOVV);
- dev_dbg(pm2->dev, "VSYSTEM overvoltage detected\n");
- }
-
- if (val & (PM2XXX_INT5_ITTHERMALWARNINGFALL |
- PM2XXX_INT5_ITTHERMALWARNINGRISE |
- PM2XXX_INT5_ITTHERMALSHUTDOWNFALL |
- PM2XXX_INT5_ITTHERMALSHUTDOWNRISE)) {
- dev_dbg(pm2->dev, "BTEMP die temperature is too Low/High\n");
- ret = pm2xxx_charger_die_therm_mngt(pm2, val &
- (PM2XXX_INT5_ITTHERMALWARNINGFALL |
- PM2XXX_INT5_ITTHERMALWARNINGRISE |
- PM2XXX_INT5_ITTHERMALSHUTDOWNFALL |
- PM2XXX_INT5_ITTHERMALSHUTDOWNRISE));
- }
-
- return ret;
-}
-
-static int pm2_int_reg5(void *pm2_data, int val)
-{
- struct pm2xxx_charger *pm2 = pm2_data;
-
- if (val & (PM2XXX_INT6_ITVPWR2DROP | PM2XXX_INT6_ITVPWR1DROP)) {
- dev_dbg(pm2->dev, "VMPWR drop to VBAT level\n");
- }
-
- if (val & (PM2XXX_INT6_ITVPWR2VALIDRISE |
- PM2XXX_INT6_ITVPWR1VALIDRISE |
- PM2XXX_INT6_ITVPWR2VALIDFALL |
- PM2XXX_INT6_ITVPWR1VALIDFALL)) {
- dev_dbg(pm2->dev, "Falling/Rising edge on WPWR1/2\n");
- }
-
- return 0;
-}
-
-static irqreturn_t pm2xxx_irq_int(int irq, void *data)
-{
- struct pm2xxx_charger *pm2 = data;
- struct pm2xxx_interrupts *interrupt = pm2->pm2_int;
- int i;
-
- /* wake up the device */
- pm_runtime_get_sync(pm2->dev);
-
- do {
- for (i = 0; i < PM2XXX_NUM_INT_REG; i++) {
- pm2xxx_reg_read(pm2,
- pm2xxx_interrupt_registers[i],
- &(interrupt->reg[i]));
-
- if (interrupt->reg[i] > 0)
- interrupt->handler[i](pm2, interrupt->reg[i]);
- }
- } while (gpio_get_value(pm2->pdata->gpio_irq_number) == 0);
-
- pm_runtime_mark_last_busy(pm2->dev);
- pm_runtime_put_autosuspend(pm2->dev);
-
- return IRQ_HANDLED;
-}
-
-static int pm2xxx_charger_get_ac_cv(struct pm2xxx_charger *pm2)
-{
- int ret = 0;
- u8 val;
-
- if (pm2->ac.charger_connected && pm2->ac.charger_online) {
-
- ret = pm2xxx_reg_read(pm2, PM2XXX_SRCE_REG_INT4, &val);
- if (ret < 0) {
- dev_err(pm2->dev, "%s pm2xxx read failed\n", __func__);
- goto out;
- }
-
- if (val & PM2XXX_INT4_S_ITCVPHASE)
- ret = PM2XXX_CONST_VOLT;
- else
- ret = PM2XXX_CONST_CURR;
- }
-out:
- return ret;
-}
-
-static int pm2xxx_current_to_regval(int curr)
-{
- int i;
-
- if (curr < pm2xxx_charger_current_map[0])
- return 0;
-
- for (i = 1; i < ARRAY_SIZE(pm2xxx_charger_current_map); i++) {
- if (curr < pm2xxx_charger_current_map[i])
- return (i - 1);
- }
-
- i = ARRAY_SIZE(pm2xxx_charger_current_map) - 1;
- if (curr == pm2xxx_charger_current_map[i])
- return i;
- else
- return -EINVAL;
-}
-
-static int pm2xxx_voltage_to_regval(int curr)
-{
- int i;
-
- if (curr < pm2xxx_charger_voltage_map[0])
- return 0;
-
- for (i = 1; i < ARRAY_SIZE(pm2xxx_charger_voltage_map); i++) {
- if (curr < pm2xxx_charger_voltage_map[i])
- return i - 1;
- }
-
- i = ARRAY_SIZE(pm2xxx_charger_voltage_map) - 1;
- if (curr == pm2xxx_charger_voltage_map[i])
- return i;
- else
- return -EINVAL;
-}
-
-static int pm2xxx_charger_update_charger_current(struct ux500_charger *charger,
- int ich_out)
-{
- int ret;
- int curr_index;
- struct pm2xxx_charger *pm2;
- u8 val;
-
- if (charger->psy->desc->type == POWER_SUPPLY_TYPE_MAINS)
- pm2 = to_pm2xxx_charger_ac_device_info(charger);
- else
- return -ENXIO;
-
- curr_index = pm2xxx_current_to_regval(ich_out);
- if (curr_index < 0) {
- dev_err(pm2->dev,
- "Charger current too high, charging not started\n");
- return -ENXIO;
- }
-
- ret = pm2xxx_reg_read(pm2, PM2XXX_BATT_CTRL_REG6, &val);
- if (ret >= 0) {
- val &= ~PM2XXX_DIR_CH_CC_CURRENT_MASK;
- val |= curr_index;
- ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG6, val);
- if (ret < 0) {
- dev_err(pm2->dev,
- "%s write failed\n", __func__);
- }
- }
- else
- dev_err(pm2->dev, "%s read failed\n", __func__);
-
- return ret;
-}
-
-static int pm2xxx_charger_ac_get_property(struct power_supply *psy,
- enum power_supply_property psp,
- union power_supply_propval *val)
-{
- struct pm2xxx_charger *pm2;
-
- pm2 = to_pm2xxx_charger_ac_device_info(psy_to_ux500_charger(psy));
-
- switch (psp) {
- case POWER_SUPPLY_PROP_HEALTH:
- if (pm2->flags.mainextchnotok)
- val->intval = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
- else if (pm2->ac.wd_expired)
- val->intval = POWER_SUPPLY_HEALTH_DEAD;
- else if (pm2->flags.main_thermal_prot)
- val->intval = POWER_SUPPLY_HEALTH_OVERHEAT;
- else if (pm2->flags.ovv)
- val->intval = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
- else
- val->intval = POWER_SUPPLY_HEALTH_GOOD;
- break;
- case POWER_SUPPLY_PROP_ONLINE:
- val->intval = pm2->ac.charger_online;
- break;
- case POWER_SUPPLY_PROP_PRESENT:
- val->intval = pm2->ac.charger_connected;
- break;
- case POWER_SUPPLY_PROP_VOLTAGE_AVG:
- pm2->ac.cv_active = pm2xxx_charger_get_ac_cv(pm2);
- val->intval = pm2->ac.cv_active;
- break;
- default:
- return -EINVAL;
- }
- return 0;
-}
-
-static int pm2xxx_charging_init(struct pm2xxx_charger *pm2)
-{
- int ret = 0;
-
- /* enable CC and CV watchdog */
- ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG3,
- (PM2XXX_CH_WD_CV_PHASE_60MIN | PM2XXX_CH_WD_CC_PHASE_60MIN));
- if( ret < 0)
- return ret;
-
- /* enable precharge watchdog */
- ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG4,
- PM2XXX_CH_WD_PRECH_PHASE_60MIN);
-
- /* Disable auto timeout */
- ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG5,
- PM2XXX_CH_WD_AUTO_TIMEOUT_20MIN);
-
- /*
- * EOC current level = 100mA
- * Precharge current level = 100mA
- * CC current level = 1000mA
- */
- ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG6,
- (PM2XXX_DIR_CH_CC_CURRENT_1000MA |
- PM2XXX_CH_PRECH_CURRENT_100MA |
- PM2XXX_CH_EOC_CURRENT_100MA));
-
- /*
- * recharge threshold = 3.8V
- * Precharge to CC threshold = 2.9V
- */
- ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG7,
- (PM2XXX_CH_PRECH_VOL_2_9 | PM2XXX_CH_VRESUME_VOL_3_8));
-
- /* float voltage charger level = 4.2V */
- ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG8,
- PM2XXX_CH_VOLT_4_2);
-
- /* Voltage drop between VBAT and VSYS in HW charging = 300mV */
- ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG9,
- (PM2XXX_CH_150MV_DROP_300MV | PM2XXX_CHARCHING_INFO_DIS |
- PM2XXX_CH_CC_REDUCED_CURRENT_IDENT |
- PM2XXX_CH_CC_MODEDROP_DIS));
-
- /* Input charger level of over voltage = 10V */
- ret = pm2xxx_reg_write(pm2, PM2XXX_INP_VOLT_VPWR2,
- PM2XXX_VPWR2_OVV_10);
- ret = pm2xxx_reg_write(pm2, PM2XXX_INP_VOLT_VPWR1,
- PM2XXX_VPWR1_OVV_10);
-
- /* Input charger drop */
- ret = pm2xxx_reg_write(pm2, PM2XXX_INP_DROP_VPWR2,
- (PM2XXX_VPWR2_HW_OPT_DIS | PM2XXX_VPWR2_VALID_DIS |
- PM2XXX_VPWR2_DROP_DIS));
- ret = pm2xxx_reg_write(pm2, PM2XXX_INP_DROP_VPWR1,
- (PM2XXX_VPWR1_HW_OPT_DIS | PM2XXX_VPWR1_VALID_DIS |
- PM2XXX_VPWR1_DROP_DIS));
-
- /* Disable battery low monitoring */
- ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_LOW_LEV_COMP_REG,
- PM2XXX_VBAT_LOW_MONITORING_ENA);
-
- return ret;
-}
-
-static int pm2xxx_charger_ac_en(struct ux500_charger *charger,
- int enable, int vset, int iset)
-{
- int ret;
- int volt_index;
- int curr_index;
- u8 val;
-
- struct pm2xxx_charger *pm2 = to_pm2xxx_charger_ac_device_info(charger);
-
- if (enable) {
- if (!pm2->ac.charger_connected) {
- dev_dbg(pm2->dev, "AC charger not connected\n");
- return -ENXIO;
- }
-
- dev_dbg(pm2->dev, "Enable AC: %dmV %dmA\n", vset, iset);
- if (!pm2->vddadc_en_ac) {
- ret = regulator_enable(pm2->regu);
- if (ret)
- dev_warn(pm2->dev,
- "Failed to enable vddadc regulator\n");
- else
- pm2->vddadc_en_ac = true;
- }
-
- ret = pm2xxx_charging_init(pm2);
- if (ret < 0) {
- dev_err(pm2->dev, "%s charging init failed\n",
- __func__);
- goto error_occured;
- }
-
- volt_index = pm2xxx_voltage_to_regval(vset);
- curr_index = pm2xxx_current_to_regval(iset);
-
- if (volt_index < 0 || curr_index < 0) {
- dev_err(pm2->dev,
- "Charger voltage or current too high, "
- "charging not started\n");
- return -ENXIO;
- }
-
- ret = pm2xxx_reg_read(pm2, PM2XXX_BATT_CTRL_REG8, &val);
- if (ret < 0) {
- dev_err(pm2->dev, "%s pm2xxx read failed\n", __func__);
- goto error_occured;
- }
- val &= ~PM2XXX_CH_VOLT_MASK;
- val |= volt_index;
- ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG8, val);
- if (ret < 0) {
- dev_err(pm2->dev, "%s pm2xxx write failed\n", __func__);
- goto error_occured;
- }
-
- ret = pm2xxx_reg_read(pm2, PM2XXX_BATT_CTRL_REG6, &val);
- if (ret < 0) {
- dev_err(pm2->dev, "%s pm2xxx read failed\n", __func__);
- goto error_occured;
- }
- val &= ~PM2XXX_DIR_CH_CC_CURRENT_MASK;
- val |= curr_index;
- ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG6, val);
- if (ret < 0) {
- dev_err(pm2->dev, "%s pm2xxx write failed\n", __func__);
- goto error_occured;
- }
-
- if (!pm2->bat->enable_overshoot) {
- ret = pm2xxx_reg_read(pm2, PM2XXX_LED_CTRL_REG, &val);
- if (ret < 0) {
- dev_err(pm2->dev, "%s pm2xxx read failed\n",
- __func__);
- goto error_occured;
- }
- val |= PM2XXX_ANTI_OVERSHOOT_EN;
- ret = pm2xxx_reg_write(pm2, PM2XXX_LED_CTRL_REG, val);
- if (ret < 0) {
- dev_err(pm2->dev, "%s pm2xxx write failed\n",
- __func__);
- goto error_occured;
- }
- }
-
- ret = pm2xxx_charging_enable_mngt(pm2);
- if (ret < 0) {
- dev_err(pm2->dev, "Failed to enable"
- "pm2xxx ac charger\n");
- goto error_occured;
- }
-
- pm2->ac.charger_online = 1;
- } else {
- pm2->ac.charger_online = 0;
- pm2->ac.wd_expired = false;
-
- /* Disable regulator if enabled */
- if (pm2->vddadc_en_ac) {
- regulator_disable(pm2->regu);
- pm2->vddadc_en_ac = false;
- }
-
- ret = pm2xxx_charging_disable_mngt(pm2);
- if (ret < 0) {
- dev_err(pm2->dev, "failed to disable"
- "pm2xxx ac charger\n");
- goto error_occured;
- }
-
- dev_dbg(pm2->dev, "PM2301: " "Disabled AC charging\n");
- }
- power_supply_changed(pm2->ac_chg.psy);
-
-error_occured:
- return ret;
-}
-
-static int pm2xxx_charger_watchdog_kick(struct ux500_charger *charger)
-{
- int ret;
- struct pm2xxx_charger *pm2;
-
- if (charger->psy->desc->type == POWER_SUPPLY_TYPE_MAINS)
- pm2 = to_pm2xxx_charger_ac_device_info(charger);
- else
- return -ENXIO;
-
- ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_WD_KICK, WD_TIMER);
- if (ret)
- dev_err(pm2->dev, "Failed to kick WD!\n");
-
- return ret;
-}
-
-static void pm2xxx_charger_ac_work(struct work_struct *work)
-{
- struct pm2xxx_charger *pm2 = container_of(work,
- struct pm2xxx_charger, ac_work);
-
-
- power_supply_changed(pm2->ac_chg.psy);
- sysfs_notify(&pm2->ac_chg.psy->dev.kobj, NULL, "present");
-};
-
-static void pm2xxx_charger_check_hw_failure_work(struct work_struct *work)
-{
- u8 reg_value;
-
- struct pm2xxx_charger *pm2 = container_of(work,
- struct pm2xxx_charger, check_hw_failure_work.work);
-
- if (pm2->flags.ovv) {
- pm2xxx_reg_read(pm2, PM2XXX_SRCE_REG_INT4, ®_value);
-
- if (!(reg_value & (PM2XXX_INT4_S_ITVPWR1OVV |
- PM2XXX_INT4_S_ITVPWR2OVV))) {
- pm2->flags.ovv = false;
- power_supply_changed(pm2->ac_chg.psy);
- }
- }
-
- /* If we still have a failure, schedule a new check */
- if (pm2->flags.ovv) {
- queue_delayed_work(pm2->charger_wq,
- &pm2->check_hw_failure_work, round_jiffies(HZ));
- }
-}
-
-static void pm2xxx_charger_check_main_thermal_prot_work(
- struct work_struct *work)
-{
- int ret;
- u8 val;
-
- struct pm2xxx_charger *pm2 = container_of(work, struct pm2xxx_charger,
- check_main_thermal_prot_work);
-
- /* Check if die temp warning is still active */
- ret = pm2xxx_reg_read(pm2, PM2XXX_SRCE_REG_INT5, &val);
- if (ret < 0) {
- dev_err(pm2->dev, "%s pm2xxx read failed\n", __func__);
- return;
- }
- if (val & (PM2XXX_INT5_S_ITTHERMALWARNINGRISE
- | PM2XXX_INT5_S_ITTHERMALSHUTDOWNRISE))
- pm2->flags.main_thermal_prot = true;
- else if (val & (PM2XXX_INT5_S_ITTHERMALWARNINGFALL
- | PM2XXX_INT5_S_ITTHERMALSHUTDOWNFALL))
- pm2->flags.main_thermal_prot = false;
-
- power_supply_changed(pm2->ac_chg.psy);
-}
-
-static struct pm2xxx_interrupts pm2xxx_int = {
- .handler[0] = pm2_int_reg0,
- .handler[1] = pm2_int_reg1,
- .handler[2] = pm2_int_reg2,
- .handler[3] = pm2_int_reg3,
- .handler[4] = pm2_int_reg4,
- .handler[5] = pm2_int_reg5,
-};
-
-static struct pm2xxx_irq pm2xxx_charger_irq[] = {
- {"PM2XXX_IRQ_INT", pm2xxx_irq_int},
-};
-
-static int __maybe_unused pm2xxx_wall_charger_resume(struct device *dev)
-{
- struct i2c_client *i2c_client = to_i2c_client(dev);
- struct pm2xxx_charger *pm2;
-
- pm2 = (struct pm2xxx_charger *)i2c_get_clientdata(i2c_client);
- set_lpn_pin(pm2);
-
- /* If we still have a HW failure, schedule a new check */
- if (pm2->flags.ovv)
- queue_delayed_work(pm2->charger_wq,
- &pm2->check_hw_failure_work, 0);
-
- return 0;
-}
-
-static int __maybe_unused pm2xxx_wall_charger_suspend(struct device *dev)
-{
- struct i2c_client *i2c_client = to_i2c_client(dev);
- struct pm2xxx_charger *pm2;
-
- pm2 = (struct pm2xxx_charger *)i2c_get_clientdata(i2c_client);
- clear_lpn_pin(pm2);
-
- /* Cancel any pending HW failure check */
- if (delayed_work_pending(&pm2->check_hw_failure_work))
- cancel_delayed_work(&pm2->check_hw_failure_work);
-
- flush_work(&pm2->ac_work);
- flush_work(&pm2->check_main_thermal_prot_work);
-
- return 0;
-}
-
-static int __maybe_unused pm2xxx_runtime_suspend(struct device *dev)
-{
- struct i2c_client *pm2xxx_i2c_client = to_i2c_client(dev);
- struct pm2xxx_charger *pm2;
-
- pm2 = (struct pm2xxx_charger *)i2c_get_clientdata(pm2xxx_i2c_client);
- clear_lpn_pin(pm2);
-
- return 0;
-}
-
-static int __maybe_unused pm2xxx_runtime_resume(struct device *dev)
-{
- struct i2c_client *pm2xxx_i2c_client = to_i2c_client(dev);
- struct pm2xxx_charger *pm2;
-
- pm2 = (struct pm2xxx_charger *)i2c_get_clientdata(pm2xxx_i2c_client);
-
- if (gpio_is_valid(pm2->lpn_pin) && gpio_get_value(pm2->lpn_pin) == 0)
- set_lpn_pin(pm2);
-
- return 0;
-}
-
-static const struct dev_pm_ops pm2xxx_pm_ops __maybe_unused = {
- SET_SYSTEM_SLEEP_PM_OPS(pm2xxx_wall_charger_suspend,
- pm2xxx_wall_charger_resume)
- SET_RUNTIME_PM_OPS(pm2xxx_runtime_suspend, pm2xxx_runtime_resume, NULL)
-};
-
-static int pm2xxx_wall_charger_probe(struct i2c_client *i2c_client,
- const struct i2c_device_id *id)
-{
- struct pm2xxx_platform_data *pl_data = i2c_client->dev.platform_data;
- struct power_supply_config psy_cfg = {};
- struct pm2xxx_charger *pm2;
- int ret = 0;
- u8 val;
- int i;
-
- if (!pl_data) {
- dev_err(&i2c_client->dev, "No platform data supplied\n");
- return -EINVAL;
- }
-
- pm2 = kzalloc(sizeof(struct pm2xxx_charger), GFP_KERNEL);
- if (!pm2) {
- dev_err(&i2c_client->dev, "pm2xxx_charger allocation failed\n");
- return -ENOMEM;
- }
-
- /* get parent data */
- pm2->dev = &i2c_client->dev;
-
- pm2->pm2_int = &pm2xxx_int;
-
- /* get charger spcific platform data */
- if (!pl_data->wall_charger) {
- dev_err(pm2->dev, "no charger platform data supplied\n");
- ret = -EINVAL;
- goto free_device_info;
- }
-
- pm2->pdata = pl_data->wall_charger;
-
- /* get battery specific platform data */
- if (!pl_data->battery) {
- dev_err(pm2->dev, "no battery platform data supplied\n");
- ret = -EINVAL;
- goto free_device_info;
- }
-
- pm2->bat = pl_data->battery;
-
- if (!i2c_check_functionality(i2c_client->adapter,
- I2C_FUNC_SMBUS_BYTE_DATA |
- I2C_FUNC_SMBUS_READ_WORD_DATA)) {
- ret = -ENODEV;
- dev_info(pm2->dev, "pm2301 i2c_check_functionality failed\n");
- goto free_device_info;
- }
-
- pm2->config.pm2xxx_i2c = i2c_client;
- pm2->config.pm2xxx_id = (struct i2c_device_id *) id;
- i2c_set_clientdata(i2c_client, pm2);
-
- /* AC supply */
- /* power_supply base class */
- pm2->ac_chg_desc.name = pm2->pdata->label;
- pm2->ac_chg_desc.type = POWER_SUPPLY_TYPE_MAINS;
- pm2->ac_chg_desc.properties = pm2xxx_charger_ac_props;
- pm2->ac_chg_desc.num_properties = ARRAY_SIZE(pm2xxx_charger_ac_props);
- pm2->ac_chg_desc.get_property = pm2xxx_charger_ac_get_property;
-
- psy_cfg.supplied_to = pm2->pdata->supplied_to;
- psy_cfg.num_supplicants = pm2->pdata->num_supplicants;
- /* pm2xxx_charger sub-class */
- pm2->ac_chg.ops.enable = &pm2xxx_charger_ac_en;
- pm2->ac_chg.ops.kick_wd = &pm2xxx_charger_watchdog_kick;
- pm2->ac_chg.ops.update_curr = &pm2xxx_charger_update_charger_current;
- pm2->ac_chg.max_out_volt = pm2xxx_charger_voltage_map[
- ARRAY_SIZE(pm2xxx_charger_voltage_map) - 1];
- pm2->ac_chg.max_out_curr = pm2xxx_charger_current_map[
- ARRAY_SIZE(pm2xxx_charger_current_map) - 1];
- pm2->ac_chg.wdt_refresh = WD_KICK_INTERVAL;
- pm2->ac_chg.enabled = true;
- pm2->ac_chg.external = true;
-
- /* Create a work queue for the charger */
- pm2->charger_wq = alloc_ordered_workqueue("pm2xxx_charger_wq",
- WQ_MEM_RECLAIM);
- if (pm2->charger_wq == NULL) {
- ret = -ENOMEM;
- dev_err(pm2->dev, "failed to create work queue\n");
- goto free_device_info;
- }
-
- /* Init work for charger detection */
- INIT_WORK(&pm2->ac_work, pm2xxx_charger_ac_work);
-
- /* Init work for checking HW status */
- INIT_WORK(&pm2->check_main_thermal_prot_work,
- pm2xxx_charger_check_main_thermal_prot_work);
-
- /* Init work for HW failure check */
- INIT_DEFERRABLE_WORK(&pm2->check_hw_failure_work,
- pm2xxx_charger_check_hw_failure_work);
-
- /*
- * VDD ADC supply needs to be enabled from this driver when there
- * is a charger connected to avoid erroneous BTEMP_HIGH/LOW
- * interrupts during charging
- */
- pm2->regu = regulator_get(pm2->dev, "vddadc");
- if (IS_ERR(pm2->regu)) {
- ret = PTR_ERR(pm2->regu);
- dev_err(pm2->dev, "failed to get vddadc regulator\n");
- goto free_charger_wq;
- }
-
- /* Register AC charger class */
- pm2->ac_chg.psy = power_supply_register(pm2->dev, &pm2->ac_chg_desc,
- &psy_cfg);
- if (IS_ERR(pm2->ac_chg.psy)) {
- dev_err(pm2->dev, "failed to register AC charger\n");
- ret = PTR_ERR(pm2->ac_chg.psy);
- goto free_regulator;
- }
-
- /* Register interrupts */
- ret = request_threaded_irq(gpio_to_irq(pm2->pdata->gpio_irq_number),
- NULL,
- pm2xxx_charger_irq[0].isr,
- pm2->pdata->irq_type | IRQF_ONESHOT,
- pm2xxx_charger_irq[0].name, pm2);
-
- if (ret != 0) {
- dev_err(pm2->dev, "failed to request %s IRQ %d: %d\n",
- pm2xxx_charger_irq[0].name,
- gpio_to_irq(pm2->pdata->gpio_irq_number), ret);
- goto unregister_pm2xxx_charger;
- }
-
- ret = pm_runtime_set_active(pm2->dev);
- if (ret)
- dev_err(pm2->dev, "set active Error\n");
-
- pm_runtime_enable(pm2->dev);
- pm_runtime_set_autosuspend_delay(pm2->dev, PM2XXX_AUTOSUSPEND_DELAY);
- pm_runtime_use_autosuspend(pm2->dev);
- pm_runtime_resume(pm2->dev);
-
- /* pm interrupt can wake up system */
- ret = enable_irq_wake(gpio_to_irq(pm2->pdata->gpio_irq_number));
- if (ret) {
- dev_err(pm2->dev, "failed to set irq wake\n");
- goto unregister_pm2xxx_interrupt;
- }
-
- mutex_init(&pm2->lock);
-
- if (gpio_is_valid(pm2->pdata->lpn_gpio)) {
- /* get lpn GPIO from platform data */
- pm2->lpn_pin = pm2->pdata->lpn_gpio;
-
- /*
- * Charger detection mechanism requires pulling up the LPN pin
- * while i2c communication if Charger is not connected
- * LPN pin of PM2301 is GPIO60 of AB9540
- */
- ret = gpio_request(pm2->lpn_pin, "pm2301_lpm_gpio");
-
- if (ret < 0) {
- dev_err(pm2->dev, "pm2301_lpm_gpio request failed\n");
- goto disable_pm2_irq_wake;
- }
- ret = gpio_direction_output(pm2->lpn_pin, 0);
- if (ret < 0) {
- dev_err(pm2->dev, "pm2301_lpm_gpio direction failed\n");
- goto free_gpio;
- }
- set_lpn_pin(pm2);
- }
-
- /* read interrupt registers */
- for (i = 0; i < PM2XXX_NUM_INT_REG; i++)
- pm2xxx_reg_read(pm2,
- pm2xxx_interrupt_registers[i],
- &val);
-
- ret = pm2xxx_charger_detection(pm2, &val);
-
- if ((ret == 0) && val) {
- pm2->ac.charger_connected = 1;
- ab8500_override_turn_on_stat(~AB8500_POW_KEY_1_ON,
- AB8500_MAIN_CH_DET);
- pm2->ac_conn = true;
- power_supply_changed(pm2->ac_chg.psy);
- sysfs_notify(&pm2->ac_chg.psy->dev.kobj, NULL, "present");
- }
-
- return 0;
-
-free_gpio:
- if (gpio_is_valid(pm2->lpn_pin))
- gpio_free(pm2->lpn_pin);
-disable_pm2_irq_wake:
- disable_irq_wake(gpio_to_irq(pm2->pdata->gpio_irq_number));
-unregister_pm2xxx_interrupt:
- /* disable interrupt */
- free_irq(gpio_to_irq(pm2->pdata->gpio_irq_number), pm2);
-unregister_pm2xxx_charger:
- /* unregister power supply */
- power_supply_unregister(pm2->ac_chg.psy);
-free_regulator:
- /* disable the regulator */
- regulator_put(pm2->regu);
-free_charger_wq:
- destroy_workqueue(pm2->charger_wq);
-free_device_info:
- kfree(pm2);
-
- return ret;
-}
-
-static int pm2xxx_wall_charger_remove(struct i2c_client *i2c_client)
-{
- struct pm2xxx_charger *pm2 = i2c_get_clientdata(i2c_client);
-
- /* Disable pm_runtime */
- pm_runtime_disable(pm2->dev);
- /* Disable AC charging */
- pm2xxx_charger_ac_en(&pm2->ac_chg, false, 0, 0);
-
- /* Disable wake by pm interrupt */
- disable_irq_wake(gpio_to_irq(pm2->pdata->gpio_irq_number));
-
- /* Disable interrupts */
- free_irq(gpio_to_irq(pm2->pdata->gpio_irq_number), pm2);
-
- /* Delete the work queue */
- destroy_workqueue(pm2->charger_wq);
-
- flush_scheduled_work();
-
- /* disable the regulator */
- regulator_put(pm2->regu);
-
- power_supply_unregister(pm2->ac_chg.psy);
-
- if (gpio_is_valid(pm2->lpn_pin))
- gpio_free(pm2->lpn_pin);
-
- kfree(pm2);
-
- return 0;
-}
-
-static const struct i2c_device_id pm2xxx_id[] = {
- { "pm2301", 0 },
- { }
-};
-
-MODULE_DEVICE_TABLE(i2c, pm2xxx_id);
-
-static struct i2c_driver pm2xxx_charger_driver = {
- .probe = pm2xxx_wall_charger_probe,
- .remove = pm2xxx_wall_charger_remove,
- .driver = {
- .name = "pm2xxx-wall_charger",
- .pm = IS_ENABLED(CONFIG_PM) ? &pm2xxx_pm_ops : NULL,
- },
- .id_table = pm2xxx_id,
-};
-
-static int __init pm2xxx_charger_init(void)
-{
- return i2c_add_driver(&pm2xxx_charger_driver);
-}
-
-static void __exit pm2xxx_charger_exit(void)
-{
- i2c_del_driver(&pm2xxx_charger_driver);
-}
-
-device_initcall_sync(pm2xxx_charger_init);
-module_exit(pm2xxx_charger_exit);
-
-MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Rajkumar kasirajan, Olivier Launay");
-MODULE_DESCRIPTION("PM2xxx charger management driver");
#define CHG_STATE_NO_BAT2 13
#define CHG_STATE_CHG_READY_VUSB 14
+#define GCHGDET_TYPE_MASK 0x30
+#define GCHGDET_TYPE_SDP 0x00
+#define GCHGDET_TYPE_CDP 0x10
+#define GCHGDET_TYPE_DCP 0x20
+
#define FG_ENABLE 1
+/*
+ * Formula seems accurate for battery current, but for USB current around 70mA
+ * per step was seen on Kobo Clara HD but all sources show the same formula
+ * also fur USB current. To avoid accidentially unwanted high currents we stick
+ * to that formula
+ */
+#define TO_CUR_REG(x) ((x) / 100000 - 1)
+#define FROM_CUR_REG(x) ((((x) & 0x1f) + 1) * 100000)
+#define CHG_MIN_CUR 100000
+#define CHG_MAX_CUR 1800000
+#define ADP_MAX_CUR 2500000
+#define USB_MAX_CUR 1400000
+
+
struct rn5t618_power_info {
struct rn5t618 *rn5t618;
struct platform_device *pdev;
int irq;
};
+static enum power_supply_usb_type rn5t618_usb_types[] = {
+ POWER_SUPPLY_USB_TYPE_SDP,
+ POWER_SUPPLY_USB_TYPE_DCP,
+ POWER_SUPPLY_USB_TYPE_CDP,
+ POWER_SUPPLY_USB_TYPE_UNKNOWN
+};
+
static enum power_supply_property rn5t618_usb_props[] = {
+ /* input current limit is not very accurate */
+ POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_USB_TYPE,
POWER_SUPPLY_PROP_ONLINE,
};
static enum power_supply_property rn5t618_adp_props[] = {
+ /* input current limit is not very accurate */
+ POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_ONLINE,
};
POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT,
POWER_SUPPLY_PROP_CHARGE_FULL,
POWER_SUPPLY_PROP_CHARGE_NOW,
};
return 0;
}
+static int rn5t618_battery_set_current_limit(struct rn5t618_power_info *info,
+ const union power_supply_propval *val)
+{
+ if (val->intval < CHG_MIN_CUR)
+ return -EINVAL;
+
+ if (val->intval >= CHG_MAX_CUR)
+ return -EINVAL;
+
+ return regmap_update_bits(info->rn5t618->regmap,
+ RN5T618_CHGISET,
+ 0x1F, TO_CUR_REG(val->intval));
+}
+
+static int rn5t618_battery_get_current_limit(struct rn5t618_power_info *info,
+ union power_supply_propval *val)
+{
+ unsigned int regval;
+ int ret;
+
+ ret = regmap_read(info->rn5t618->regmap, RN5T618_CHGISET,
+ ®val);
+ if (ret < 0)
+ return ret;
+
+ val->intval = FROM_CUR_REG(regval);
+
+ return 0;
+}
+
static int rn5t618_battery_charge_full(struct rn5t618_power_info *info,
union power_supply_propval *val)
{
case POWER_SUPPLY_PROP_TECHNOLOGY:
val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
break;
+ case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT:
+ ret = rn5t618_battery_get_current_limit(info, val);
+ break;
case POWER_SUPPLY_PROP_CHARGE_FULL:
ret = rn5t618_battery_charge_full(info, val);
break;
return ret;
}
+static int rn5t618_battery_set_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ const union power_supply_propval *val)
+{
+ struct rn5t618_power_info *info = power_supply_get_drvdata(psy);
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT:
+ return rn5t618_battery_set_current_limit(info, val);
+ default:
+ return -EINVAL;
+ }
+}
+
+static int rn5t618_battery_property_is_writeable(struct power_supply *psy,
+ enum power_supply_property psp)
+{
+ switch (psp) {
+ case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT:
+ return true;
+ default:
+ return false;
+ }
+}
+
static int rn5t618_adp_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct rn5t618_power_info *info = power_supply_get_drvdata(psy);
unsigned int chgstate;
+ unsigned int regval;
bool online;
int ret;
if (val->intval != POWER_SUPPLY_STATUS_CHARGING)
val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ break;
+ case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+ ret = regmap_read(info->rn5t618->regmap,
+ RN5T618_REGISET1, ®val);
+ if (ret < 0)
+ return ret;
+
+ val->intval = FROM_CUR_REG(regval);
break;
default:
return -EINVAL;
return 0;
}
+static int rn5t618_adp_set_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ const union power_supply_propval *val)
+{
+ struct rn5t618_power_info *info = power_supply_get_drvdata(psy);
+ int ret;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+ if (val->intval > ADP_MAX_CUR)
+ return -EINVAL;
+
+ if (val->intval < CHG_MIN_CUR)
+ return -EINVAL;
+
+ ret = regmap_write(info->rn5t618->regmap, RN5T618_REGISET1,
+ TO_CUR_REG(val->intval));
+ if (ret < 0)
+ return ret;
+
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int rn5t618_adp_property_is_writeable(struct power_supply *psy,
+ enum power_supply_property psp)
+{
+ switch (psp) {
+ case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static int rc5t619_usb_get_type(struct rn5t618_power_info *info,
+ union power_supply_propval *val)
+{
+ unsigned int regval;
+ int ret;
+
+ ret = regmap_read(info->rn5t618->regmap, RN5T618_GCHGDET, ®val);
+ if (ret < 0)
+ return ret;
+
+ switch (regval & GCHGDET_TYPE_MASK) {
+ case GCHGDET_TYPE_SDP:
+ val->intval = POWER_SUPPLY_USB_TYPE_SDP;
+ break;
+ case GCHGDET_TYPE_CDP:
+ val->intval = POWER_SUPPLY_USB_TYPE_CDP;
+ break;
+ case GCHGDET_TYPE_DCP:
+ val->intval = POWER_SUPPLY_USB_TYPE_DCP;
+ break;
+ default:
+ val->intval = POWER_SUPPLY_USB_TYPE_UNKNOWN;
+ }
+
+ return 0;
+}
+
static int rn5t618_usb_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct rn5t618_power_info *info = power_supply_get_drvdata(psy);
unsigned int chgstate;
+ unsigned int regval;
bool online;
int ret;
if (val->intval != POWER_SUPPLY_STATUS_CHARGING)
val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ break;
+ case POWER_SUPPLY_PROP_USB_TYPE:
+ if (!online || (info->rn5t618->variant != RC5T619))
+ return -ENODATA;
+
+ return rc5t619_usb_get_type(info, val);
+ case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+ ret = regmap_read(info->rn5t618->regmap, RN5T618_CHGCTL1,
+ ®val);
+ if (ret < 0)
+ return ret;
+
+ val->intval = 0;
+ if (regval & 2) {
+ ret = regmap_read(info->rn5t618->regmap,
+ RN5T618_REGISET2,
+ ®val);
+ if (ret < 0)
+ return ret;
+
+ val->intval = FROM_CUR_REG(regval);
+ }
break;
default:
return -EINVAL;
return 0;
}
+static int rn5t618_usb_set_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ const union power_supply_propval *val)
+{
+ struct rn5t618_power_info *info = power_supply_get_drvdata(psy);
+ int ret;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+ if (val->intval > USB_MAX_CUR)
+ return -EINVAL;
+
+ if (val->intval < CHG_MIN_CUR)
+ return -EINVAL;
+
+ ret = regmap_write(info->rn5t618->regmap, RN5T618_REGISET2,
+ 0xE0 | TO_CUR_REG(val->intval));
+ if (ret < 0)
+ return ret;
+
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int rn5t618_usb_property_is_writeable(struct power_supply *psy,
+ enum power_supply_property psp)
+{
+ switch (psp) {
+ case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
+ return true;
+ default:
+ return false;
+ }
+}
+
static const struct power_supply_desc rn5t618_battery_desc = {
.name = "rn5t618-battery",
.type = POWER_SUPPLY_TYPE_BATTERY,
.properties = rn5t618_battery_props,
.num_properties = ARRAY_SIZE(rn5t618_battery_props),
.get_property = rn5t618_battery_get_property,
+ .set_property = rn5t618_battery_set_property,
+ .property_is_writeable = rn5t618_battery_property_is_writeable,
};
static const struct power_supply_desc rn5t618_adp_desc = {
.properties = rn5t618_adp_props,
.num_properties = ARRAY_SIZE(rn5t618_adp_props),
.get_property = rn5t618_adp_get_property,
+ .set_property = rn5t618_adp_set_property,
+ .property_is_writeable = rn5t618_adp_property_is_writeable,
};
static const struct power_supply_desc rn5t618_usb_desc = {
.name = "rn5t618-usb",
.type = POWER_SUPPLY_TYPE_USB,
+ .usb_types = rn5t618_usb_types,
+ .num_usb_types = ARRAY_SIZE(rn5t618_usb_types),
.properties = rn5t618_usb_props,
.num_properties = ARRAY_SIZE(rn5t618_usb_props),
.get_property = rn5t618_usb_get_property,
+ .set_property = rn5t618_usb_set_property,
+ .property_is_writeable = rn5t618_usb_property_is_writeable,
};
static irqreturn_t rn5t618_charger_irq(int irq, void *data)
};
MODULE_DEVICE_TABLE(i2c, rt5033_battery_id);
+static const struct of_device_id rt5033_battery_of_match[] = {
+ { .compatible = "richtek,rt5033-battery", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, rt5033_battery_of_match);
+
static struct i2c_driver rt5033_battery_driver = {
.driver = {
.name = "rt5033-battery",
+ .of_match_table = rt5033_battery_of_match,
},
.probe = rt5033_battery_probe,
.remove = rt5033_battery_remove,
/* Supports special manufacturer commands from TI BQ20Z65 and BQ20Z75 IC. */
#define SBS_FLAGS_TI_BQ20ZX5 BIT(0)
+static const enum power_supply_property string_properties[] = {
+ POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_MANUFACTURER,
+ POWER_SUPPLY_PROP_MODEL_NAME,
+};
+
+#define NR_STRING_BUFFERS ARRAY_SIZE(string_properties)
+
struct sbs_info {
struct i2c_client *client;
struct power_supply *power_supply;
struct delayed_work work;
struct mutex mode_lock;
u32 flags;
+ int technology;
+ char strings[NR_STRING_BUFFERS][I2C_SMBUS_BLOCK_MAX + 1];
};
-static char model_name[I2C_SMBUS_BLOCK_MAX + 1];
-static char manufacturer[I2C_SMBUS_BLOCK_MAX + 1];
-static char chemistry[I2C_SMBUS_BLOCK_MAX + 1];
+static char *sbs_get_string_buf(struct sbs_info *chip,
+ enum power_supply_property psp)
+{
+ int i = 0;
+
+ for (i = 0; i < NR_STRING_BUFFERS; i++)
+ if (string_properties[i] == psp)
+ return chip->strings[i];
+
+ return ERR_PTR(-EINVAL);
+}
+
+static void sbs_invalidate_cached_props(struct sbs_info *chip)
+{
+ int i = 0;
+
+ chip->technology = -1;
+
+ for (i = 0; i < NR_STRING_BUFFERS; i++)
+ chip->strings[i][0] = 0;
+}
+
static bool force_load;
static int sbs_read_word_data(struct i2c_client *client, u8 address);
chip->is_present = false;
/* Disable PEC when no device is present */
client->flags &= ~I2C_CLIENT_PEC;
+ sbs_invalidate_cached_props(chip);
return 0;
}
return 0;
}
-static int sbs_get_battery_string_property(struct i2c_client *client,
- int reg_offset, enum power_supply_property psp, char *val)
+static int sbs_get_property_index(struct i2c_client *client,
+ enum power_supply_property psp)
{
- s32 ret;
+ int count;
- ret = sbs_read_string_data(client, sbs_data[reg_offset].addr, val);
+ for (count = 0; count < ARRAY_SIZE(sbs_data); count++)
+ if (psp == sbs_data[count].psp)
+ return count;
- if (ret < 0)
- return ret;
+ dev_warn(&client->dev,
+ "%s: Invalid Property - %d\n", __func__, psp);
- return 0;
+ return -EINVAL;
+}
+
+static const char *sbs_get_constant_string(struct sbs_info *chip,
+ enum power_supply_property psp)
+{
+ int ret;
+ char *buf;
+ u8 addr;
+
+ buf = sbs_get_string_buf(chip, psp);
+ if (IS_ERR(buf))
+ return buf;
+
+ if (!buf[0]) {
+ ret = sbs_get_property_index(chip->client, psp);
+ if (ret < 0)
+ return ERR_PTR(ret);
+
+ addr = sbs_data[ret].addr;
+
+ ret = sbs_read_string_data(chip->client, addr, buf);
+ if (ret < 0)
+ return ERR_PTR(ret);
+ }
+
+ return buf;
}
static void sbs_unit_adjustment(struct i2c_client *client,
return 0;
}
-static int sbs_get_property_index(struct i2c_client *client,
- enum power_supply_property psp)
-{
- int count;
- for (count = 0; count < ARRAY_SIZE(sbs_data); count++)
- if (psp == sbs_data[count].psp)
- return count;
-
- dev_warn(&client->dev,
- "%s: Invalid Property - %d\n", __func__, psp);
-
- return -EINVAL;
-}
-
-static int sbs_get_chemistry(struct i2c_client *client,
+static int sbs_get_chemistry(struct sbs_info *chip,
union power_supply_propval *val)
{
- enum power_supply_property psp = POWER_SUPPLY_PROP_TECHNOLOGY;
- int ret;
+ const char *chemistry;
- ret = sbs_get_property_index(client, psp);
- if (ret < 0)
- return ret;
+ if (chip->technology != -1) {
+ val->intval = chip->technology;
+ return 0;
+ }
- ret = sbs_get_battery_string_property(client, ret, psp,
- chemistry);
- if (ret < 0)
- return ret;
+ chemistry = sbs_get_constant_string(chip, POWER_SUPPLY_PROP_TECHNOLOGY);
+
+ if (IS_ERR(chemistry))
+ return PTR_ERR(chemistry);
if (!strncasecmp(chemistry, "LION", 4))
- val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
+ chip->technology = POWER_SUPPLY_TECHNOLOGY_LION;
else if (!strncasecmp(chemistry, "LiP", 3))
- val->intval = POWER_SUPPLY_TECHNOLOGY_LIPO;
+ chip->technology = POWER_SUPPLY_TECHNOLOGY_LIPO;
else if (!strncasecmp(chemistry, "NiCd", 4))
- val->intval = POWER_SUPPLY_TECHNOLOGY_NiCd;
+ chip->technology = POWER_SUPPLY_TECHNOLOGY_NiCd;
else if (!strncasecmp(chemistry, "NiMH", 4))
- val->intval = POWER_SUPPLY_TECHNOLOGY_NiMH;
+ chip->technology = POWER_SUPPLY_TECHNOLOGY_NiMH;
else
- val->intval = POWER_SUPPLY_TECHNOLOGY_UNKNOWN;
+ chip->technology = POWER_SUPPLY_TECHNOLOGY_UNKNOWN;
+
+ if (chip->technology == POWER_SUPPLY_TECHNOLOGY_UNKNOWN)
+ dev_warn(&chip->client->dev, "Unknown chemistry: %s\n", chemistry);
- if (val->intval == POWER_SUPPLY_TECHNOLOGY_UNKNOWN)
- dev_warn(&client->dev, "Unknown chemistry: %s\n", chemistry);
+ val->intval = chip->technology;
return 0;
}
int ret = 0;
struct sbs_info *chip = power_supply_get_drvdata(psy);
struct i2c_client *client = chip->client;
+ const char *str;
if (chip->gpio_detect) {
ret = gpiod_get_value_cansleep(chip->gpio_detect);
break;
case POWER_SUPPLY_PROP_TECHNOLOGY:
- ret = sbs_get_chemistry(client, val);
+ ret = sbs_get_chemistry(chip, val);
if (ret < 0)
break;
break;
case POWER_SUPPLY_PROP_MODEL_NAME:
- ret = sbs_get_property_index(client, psp);
- if (ret < 0)
- break;
-
- ret = sbs_get_battery_string_property(client, ret, psp,
- model_name);
- val->strval = model_name;
- break;
-
case POWER_SUPPLY_PROP_MANUFACTURER:
- ret = sbs_get_property_index(client, psp);
- if (ret < 0)
- break;
-
- ret = sbs_get_battery_string_property(client, ret, psp,
- manufacturer);
- val->strval = manufacturer;
+ str = sbs_get_constant_string(chip, psp);
+ if (IS_ERR(str))
+ ret = PTR_ERR(str);
+ else
+ val->strval = str;
break;
case POWER_SUPPLY_PROP_MANUFACTURE_YEAR:
psy_cfg.of_node = client->dev.of_node;
psy_cfg.drv_data = chip;
chip->last_state = POWER_SUPPLY_STATUS_UNKNOWN;
+ sbs_invalidate_cached_props(chip);
mutex_init(&chip->mode_lock);
/* use pdata if available, fall back to DT properties,
{ .compatible = "sprd,sc2731-charger", },
{ }
};
+MODULE_DEVICE_TABLE(of, sc2731_charger_of_match);
static struct platform_driver sc2731_charger_driver = {
.driver = {
{ .compatible = "sprd,sc2731-fgu", },
{ }
};
+MODULE_DEVICE_TABLE(of, sc27xx_fgu_of_match);
static struct platform_driver sc27xx_fgu_driver = {
.probe = sc27xx_fgu_probe,
#include <linux/delay.h>
#include <linux/err.h>
-#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
struct spwr_battery_device *bat = container_of(nf, struct spwr_battery_device, notif);
int status;
+ /*
+ * We cannot use strict matching when registering the notifier as the
+ * EC expects us to register it against instance ID 0. Strict matching
+ * would thus drop events, as those may have non-zero instance IDs in
+ * this subsystem. So we need to check the instance ID of the event
+ * here manually.
+ */
+ if (event->instance_id != bat->sdev->uid.instance)
+ return 0;
+
dev_dbg(&bat->sdev->dev, "power event (cid = %#04x, iid = %#04x, tid = %#04x)\n",
event->command_id, event->instance_id, event->target_id);
bat->notif.base.fn = spwr_notify_bat;
bat->notif.event.reg = registry;
bat->notif.event.id.target_category = sdev->uid.category;
- bat->notif.event.id.instance = 0;
- bat->notif.event.mask = SSAM_EVENT_MASK_STRICT;
+ bat->notif.event.id.instance = 0; /* need to register with instance 0 */
+ bat->notif.event.mask = SSAM_EVENT_MASK_TARGET;
bat->notif.event.flags = SSAM_EVENT_SEQUENCED;
bat->psy_desc.name = bat->name;
static int spwr_ac_update_unlocked(struct spwr_ac_device *ac)
{
- u32 old = ac->state;
+ __le32 old = ac->state;
int status;
lockdep_assert_held(&ac->lock);
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) 2009 Samsung Electronics
- * Minkyu Kang <mk7.kang@samsung.com>
- */
-
-#ifndef __MAX17040_BATTERY_H_
-#define __MAX17040_BATTERY_H_
-
-struct max17040_platform_data {
- int (*battery_online)(void);
- int (*charger_online)(void);
- int (*charger_enable)(void);
-};
-
-#endif
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * PM2301 charger driver.
- *
- * Copyright (C) 2012 ST Ericsson Corporation
- *
- * Contact: Olivier LAUNAY (olivier.launay@stericsson.com
- */
-
-#ifndef __LINUX_PM2301_H
-#define __LINUX_PM2301_H
-
-/**
- * struct pm2xxx_bm_charger_parameters - Charger specific parameters
- * @ac_volt_max: maximum allowed AC charger voltage in mV
- * @ac_curr_max: maximum allowed AC charger current in mA
- */
-struct pm2xxx_bm_charger_parameters {
- int ac_volt_max;
- int ac_curr_max;
-};
-
-/**
- * struct pm2xxx_bm_data - pm2xxx battery management data
- * @enable_overshoot flag to enable VBAT overshoot control
- * @chg_params charger parameters
- */
-struct pm2xxx_bm_data {
- bool enable_overshoot;
- const struct pm2xxx_bm_charger_parameters *chg_params;
-};
-
-struct pm2xxx_charger_platform_data {
- char **supplied_to;
- size_t num_supplicants;
- int i2c_bus;
- const char *label;
- int gpio_irq_number;
- unsigned int lpn_gpio;
- int irq_type;
-};
-
-struct pm2xxx_platform_data {
- struct pm2xxx_charger_platform_data *wall_charger;
- struct pm2xxx_bm_data *battery;
-};
-
-#endif /* __LINUX_PM2301_H */
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) ST-Ericsson 2013
- * Author: Hongbo Zhang <hongbo.zhang@linaro.com>
- */
-
-#ifndef PWR_AB8500_H
-#define PWR_AB8500_H
-
-extern const struct abx500_res_to_temp ab8500_temp_tbl_a_thermistor[];
-extern const int ab8500_temp_tbl_a_size;
-
-extern const struct abx500_res_to_temp ab8500_temp_tbl_b_thermistor[];
-extern const int ab8500_temp_tbl_b_size;
-
-#endif /* PWR_AB8500_H */
projects / linux-2.6-microblaze.git / commitdiff