regulator: arizona-ldo1: Move pdata into a separate structure

In preparation for sharing this driver with Madera, move the pdata
for the LDO1 regulator out of struct arizona_pdata into a dedicated
pdata struct for this driver. As a result the code in
arizona_ldo1_of_get_pdata() can be made independent of struct arizona.

This patch also updates the definition of struct arizona_pdata and
the use of this pdata in mach-crag6410-module.c

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/arch/arm/mach-s3c64xx/mach-crag6410-module.c b/arch/arm/mach-s3c64xx/mach-crag6410-module.c
index ccc3ab8..ea5f216 100644 (file)
--- a/arch/arm/mach-s3c64xx/mach-crag6410-module.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410-module.c
@@ -209,7 +209,9 @@ static const struct i2c_board_info wm1277_devs[] = {
 };
 
 static struct arizona_pdata wm5102_reva_pdata = {
-       .ldoena = S3C64XX_GPN(7),
+       .ldo1 = {
+               .ldoena = S3C64XX_GPN(7),
+       },
        .gpio_base = CODEC_GPIO_BASE,
        .irq_flags = IRQF_TRIGGER_HIGH,
        .micd_pol_gpio = CODEC_GPIO_BASE + 4,
@@ -239,7 +241,9 @@ static struct spi_board_info wm5102_reva_spi_devs[] = {
 };
 
 static struct arizona_pdata wm5102_pdata = {
-       .ldoena = S3C64XX_GPN(7),
+       .ldo1 = {
+               .ldoena = S3C64XX_GPN(7),
+       },
        .gpio_base = CODEC_GPIO_BASE,
        .irq_flags = IRQF_TRIGGER_HIGH,
        .micd_pol_gpio = CODEC_GPIO_BASE + 2,

diff --git a/drivers/regulator/arizona-ldo1.c b/drivers/regulator/arizona-ldo1.c
index b726fa1..f5bc75a 100644 (file)
--- a/drivers/regulator/arizona-ldo1.c
+++ b/drivers/regulator/arizona-ldo1.c
@@ -25,6 +25,8 @@
 #include <linux/gpio.h>
 #include <linux/slab.h>
 
+#include <linux/regulator/arizona-ldo1.h>
+
 #include <linux/mfd/arizona/core.h>
 #include <linux/mfd/arizona/pdata.h>
 #include <linux/mfd/arizona/registers.h>
@@ -186,20 +188,19 @@ static const struct regulator_init_data arizona_ldo1_wm5110 = {
        .num_consumer_supplies = 1,
 };
 
-static int arizona_ldo1_of_get_pdata(struct device *dev,
-                                    struct arizona *arizona,
+static int arizona_ldo1_of_get_pdata(struct arizona_ldo1_pdata *pdata,
                                     struct regulator_config *config,
-                                    const struct regulator_desc *desc)
+                                    const struct regulator_desc *desc,
+                                    bool *external_dcvdd)
 {
-       struct arizona_pdata *pdata = &arizona->pdata;
        struct arizona_ldo1 *ldo1 = config->driver_data;
-       struct device_node *np = arizona->dev->of_node;
+       struct device_node *np = config->dev->of_node;
        struct device_node *init_node, *dcvdd_node;
        struct regulator_init_data *init_data;
 
        pdata->ldoena = of_get_named_gpio(np, "wlf,ldoena", 0);
        if (pdata->ldoena < 0) {
-               dev_warn(arizona->dev,
+               dev_warn(config->dev,
                         "LDOENA GPIO property missing/malformed: %d\n",
                         pdata->ldoena);
                pdata->ldoena = 0;
@@ -213,19 +214,19 @@ static int arizona_ldo1_of_get_pdata(struct device *dev,
        if (init_node) {
                config->of_node = init_node;
 
-               init_data = of_get_regulator_init_data(dev, init_node, desc);
-
+               init_data = of_get_regulator_init_data(config->dev, init_node,
+                                                      desc);
                if (init_data) {
                        init_data->consumer_supplies = &ldo1->supply;
                        init_data->num_consumer_supplies = 1;
 
                        if (dcvdd_node && dcvdd_node != init_node)
-                               arizona->external_dcvdd = true;
+                               *external_dcvdd = true;
 
-                       pdata->ldo1 = init_data;
+                       pdata->init_data = init_data;
                }
        } else if (dcvdd_node) {
-               arizona->external_dcvdd = true;
+               *external_dcvdd = true;
        }
 
        of_node_put(dcvdd_node);
@@ -239,10 +240,9 @@ static int arizona_ldo1_probe(struct platform_device *pdev)
        const struct regulator_desc *desc;
        struct regulator_config config = { };
        struct arizona_ldo1 *ldo1;
+       bool external_dcvdd = false;
        int ret;
 
-       arizona->external_dcvdd = false;
-
        ldo1 = devm_kzalloc(&pdev->dev, sizeof(*ldo1), GFP_KERNEL);
        if (!ldo1)
                return -ENOMEM;
@@ -283,17 +283,18 @@ static int arizona_ldo1_probe(struct platform_device *pdev)
 
        if (IS_ENABLED(CONFIG_OF)) {
                if (!dev_get_platdata(arizona->dev)) {
-                       ret = arizona_ldo1_of_get_pdata(&pdev->dev, arizona,
-                                                       &config, desc);
+                       ret = arizona_ldo1_of_get_pdata(&arizona->pdata.ldo1,
+                                                       &config, desc,
+                                                       &external_dcvdd);
                        if (ret < 0)
                                return ret;
                }
        }
 
-       config.ena_gpio = arizona->pdata.ldoena;
+       config.ena_gpio = arizona->pdata.ldo1.ldoena;
 
-       if (arizona->pdata.ldo1)
-               config.init_data = arizona->pdata.ldo1;
+       if (arizona->pdata.ldo1.init_data)
+               config.init_data = arizona->pdata.ldo1.init_data;
        else
                config.init_data = &ldo1->init_data;
 
@@ -303,6 +304,8 @@ static int arizona_ldo1_probe(struct platform_device *pdev)
         */
        if (config.init_data->num_consumer_supplies == 0)
                arizona->external_dcvdd = true;
+       else
+               arizona->external_dcvdd = external_dcvdd;
 
        ldo1->regulator = devm_regulator_register(&pdev->dev, desc, &config);
 

diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h
index 43e875f..bfeecf1 100644 (file)
--- a/include/linux/mfd/arizona/pdata.h
+++ b/include/linux/mfd/arizona/pdata.h
@@ -12,6 +12,7 @@
 #define _ARIZONA_PDATA_H
 
 #include <dt-bindings/mfd/arizona.h>
+#include <linux/regulator/arizona-ldo1.h>
 #include <linux/regulator/arizona-micsupp.h>
 
 #define ARIZONA_GPN_DIR_MASK                     0x8000  /* GPN_DIR */
@@ -77,13 +78,12 @@ struct arizona_micd_range {
 
 struct arizona_pdata {
        int reset;      /** GPIO controlling /RESET, if any */
-       int ldoena;     /** GPIO controlling LODENA, if any */
 
        /** Regulator configuration for MICVDD */
        struct arizona_micsupp_pdata micvdd;
 
        /** Regulator configuration for LDO1 */
-       struct regulator_init_data *ldo1;
+       struct arizona_ldo1_pdata ldo1;
 
        /** If a direct 32kHz clock is provided on an MCLK specify it here */
        int clk32k_src;

diff --git a/include/linux/regulator/arizona-ldo1.h b/include/linux/regulator/arizona-ldo1.h
new file mode 100644 (file)
index 0000000..c685f12
--- /dev/null
+++ b/include/linux/regulator/arizona-ldo1.h
@@ -0,0 +1,24 @@
+/*
+ * Platform data for Arizona LDO1 regulator
+ *
+ * Copyright 2017 Cirrus Logic
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef ARIZONA_LDO1_H
+#define ARIZONA_LDO1_H
+
+struct regulator_init_data;
+
+struct arizona_ldo1_pdata {
+       /** GPIO controlling LDOENA, if any */
+       int ldoena;
+
+       /** Regulator configuration for LDO1 */
+       const struct regulator_init_data *init_data;
+};
+
+#endif