void __weak pcibios_bus_add_device(struct pci_dev *pdev) { }
/*
- * Create pwrctl devices (if required) for the PCI devices to handle the power
+ * Create pwrctrl devices (if required) for the PCI devices to handle the power
* state.
*/
-static void pci_pwrctl_create_devices(struct pci_dev *dev)
+static void pci_pwrctrl_create_devices(struct pci_dev *dev)
{
struct device_node *np = dev_of_node(&dev->dev);
struct device *parent = &dev->dev;
*/
if (np && pci_is_bridge(dev)) {
/*
- * Now look for the child PCI device nodes and create pwrctl
- * devices for them. The pwrctl device drivers will manage the
+ * Now look for the child PCI device nodes and create pwrctrl
+ * devices for them. The pwrctrl device drivers will manage the
* power state of the devices.
*/
for_each_available_child_of_node_scoped(np, child) {
/*
- * First check whether the pwrctl device really needs to
- * be created or not. This is decided based on at least
- * one of the power supplies being defined in the
- * devicetree node of the device.
+ * First check whether the pwrctrl device really
+ * needs to be created or not. This is decided
+ * based on at least one of the power supplies
+ * being defined in the devicetree node of the
+ * device.
*/
if (!of_pci_supply_present(child)) {
pci_dbg(dev, "skipping OF node: %s\n", child->name);
return;
}
- /* Now create the pwrctl device */
+ /* Now create the pwrctrl device */
pdev = of_platform_device_create(child, NULL, parent);
if (!pdev)
pci_err(dev, "failed to create OF node: %s\n", child->name);
pci_proc_attach_device(dev);
pci_bridge_d3_update(dev);
- pci_pwrctl_create_devices(dev);
+ pci_pwrctrl_create_devices(dev);
/*
- * If the PCI device is associated with a pwrctl device with a
+ * If the PCI device is associated with a pwrctrl device with a
* power supply, create a device link between the PCI device and
- * pwrctl device. This ensures that pwrctl drivers are probed
+ * pwrctrl device. This ensures that pwrctrl drivers are probed
* before PCI client drivers.
*/
pdev = of_find_device_by_node(dn);
#include <linux/property.h>
#include <linux/slab.h>
-static int pci_pwrctl_notify(struct notifier_block *nb, unsigned long action,
- void *data)
+static int pci_pwrctrl_notify(struct notifier_block *nb, unsigned long action,
+ void *data)
{
- struct pci_pwrctl *pwrctl = container_of(nb, struct pci_pwrctl, nb);
+ struct pci_pwrctrl *pwrctrl = container_of(nb, struct pci_pwrctrl, nb);
struct device *dev = data;
- if (dev_fwnode(dev) != dev_fwnode(pwrctl->dev))
+ if (dev_fwnode(dev) != dev_fwnode(pwrctrl->dev))
return NOTIFY_DONE;
switch (action) {
static void rescan_work_func(struct work_struct *work)
{
- struct pci_pwrctl *pwrctl = container_of(work, struct pci_pwrctl, work);
+ struct pci_pwrctrl *pwrctrl = container_of(work,
+ struct pci_pwrctrl, work);
pci_lock_rescan_remove();
- pci_rescan_bus(to_pci_dev(pwrctl->dev->parent)->bus);
+ pci_rescan_bus(to_pci_dev(pwrctrl->dev->parent)->bus);
pci_unlock_rescan_remove();
}
/**
- * pci_pwrctl_init() - Initialize the PCI power control context struct
+ * pci_pwrctrl_init() - Initialize the PCI power control context struct
*
- * @pwrctl: PCI power control data
+ * @pwrctrl: PCI power control data
* @dev: Parent device
*/
-void pci_pwrctl_init(struct pci_pwrctl *pwrctl, struct device *dev)
+void pci_pwrctrl_init(struct pci_pwrctrl *pwrctrl, struct device *dev)
{
- pwrctl->dev = dev;
- INIT_WORK(&pwrctl->work, rescan_work_func);
+ pwrctrl->dev = dev;
+ INIT_WORK(&pwrctrl->work, rescan_work_func);
}
-EXPORT_SYMBOL_GPL(pci_pwrctl_init);
+EXPORT_SYMBOL_GPL(pci_pwrctrl_init);
/**
- * pci_pwrctl_device_set_ready() - Notify the pwrctl subsystem that the PCI
+ * pci_pwrctrl_device_set_ready() - Notify the pwrctrl subsystem that the PCI
* device is powered-up and ready to be detected.
*
- * @pwrctl: PCI power control data.
+ * @pwrctrl: PCI power control data.
*
* Returns:
* 0 on success, negative error number on error.
* that the bus rescan was successfully started. The device will get bound to
* its PCI driver asynchronously.
*/
-int pci_pwrctl_device_set_ready(struct pci_pwrctl *pwrctl)
+int pci_pwrctrl_device_set_ready(struct pci_pwrctrl *pwrctrl)
{
int ret;
- if (!pwrctl->dev)
+ if (!pwrctrl->dev)
return -ENODEV;
- pwrctl->nb.notifier_call = pci_pwrctl_notify;
- ret = bus_register_notifier(&pci_bus_type, &pwrctl->nb);
+ pwrctrl->nb.notifier_call = pci_pwrctrl_notify;
+ ret = bus_register_notifier(&pci_bus_type, &pwrctrl->nb);
if (ret)
return ret;
- schedule_work(&pwrctl->work);
+ schedule_work(&pwrctrl->work);
return 0;
}
-EXPORT_SYMBOL_GPL(pci_pwrctl_device_set_ready);
+EXPORT_SYMBOL_GPL(pci_pwrctrl_device_set_ready);
/**
- * pci_pwrctl_device_unset_ready() - Notify the pwrctl subsystem that the PCI
+ * pci_pwrctrl_device_unset_ready() - Notify the pwrctrl subsystem that the PCI
* device is about to be powered-down.
*
- * @pwrctl: PCI power control data.
+ * @pwrctrl: PCI power control data.
*/
-void pci_pwrctl_device_unset_ready(struct pci_pwrctl *pwrctl)
+void pci_pwrctrl_device_unset_ready(struct pci_pwrctrl *pwrctrl)
{
/*
* We don't have to delete the link here. Typically, this function
* it is being detached then the child PCI device must have already
* been unbound too or the device core wouldn't let us unbind.
*/
- bus_unregister_notifier(&pci_bus_type, &pwrctl->nb);
+ bus_unregister_notifier(&pci_bus_type, &pwrctrl->nb);
}
-EXPORT_SYMBOL_GPL(pci_pwrctl_device_unset_ready);
+EXPORT_SYMBOL_GPL(pci_pwrctrl_device_unset_ready);
-static void devm_pci_pwrctl_device_unset_ready(void *data)
+static void devm_pci_pwrctrl_device_unset_ready(void *data)
{
- struct pci_pwrctl *pwrctl = data;
+ struct pci_pwrctrl *pwrctrl = data;
- pci_pwrctl_device_unset_ready(pwrctl);
+ pci_pwrctrl_device_unset_ready(pwrctrl);
}
/**
- * devm_pci_pwrctl_device_set_ready - Managed variant of
- * pci_pwrctl_device_set_ready().
+ * devm_pci_pwrctrl_device_set_ready - Managed variant of
+ * pci_pwrctrl_device_set_ready().
*
- * @dev: Device managing this pwrctl provider.
- * @pwrctl: PCI power control data.
+ * @dev: Device managing this pwrctrl provider.
+ * @pwrctrl: PCI power control data.
*
* Returns:
* 0 on success, negative error number on error.
*/
-int devm_pci_pwrctl_device_set_ready(struct device *dev,
- struct pci_pwrctl *pwrctl)
+int devm_pci_pwrctrl_device_set_ready(struct device *dev,
+ struct pci_pwrctrl *pwrctrl)
{
int ret;
- ret = pci_pwrctl_device_set_ready(pwrctl);
+ ret = pci_pwrctrl_device_set_ready(pwrctrl);
if (ret)
return ret;
return devm_add_action_or_reset(dev,
- devm_pci_pwrctl_device_unset_ready,
- pwrctl);
+ devm_pci_pwrctrl_device_unset_ready,
+ pwrctrl);
}
-EXPORT_SYMBOL_GPL(devm_pci_pwrctl_device_set_ready);
+EXPORT_SYMBOL_GPL(devm_pci_pwrctrl_device_set_ready);
MODULE_AUTHOR("Bartosz Golaszewski <bartosz.golaszewski@linaro.org>");
MODULE_DESCRIPTION("PCI Device Power Control core driver");
#include <linux/slab.h>
#include <linux/types.h>
-struct pci_pwrctl_pwrseq_data {
- struct pci_pwrctl ctx;
+struct pci_pwrctrl_pwrseq_data {
+ struct pci_pwrctrl ctx;
struct pwrseq_desc *pwrseq;
};
-static void devm_pci_pwrctl_pwrseq_power_off(void *data)
+static void devm_pci_pwrctrl_pwrseq_power_off(void *data)
{
struct pwrseq_desc *pwrseq = data;
pwrseq_power_off(pwrseq);
}
-static int pci_pwrctl_pwrseq_probe(struct platform_device *pdev)
+static int pci_pwrctrl_pwrseq_probe(struct platform_device *pdev)
{
- struct pci_pwrctl_pwrseq_data *data;
+ struct pci_pwrctrl_pwrseq_data *data;
struct device *dev = &pdev->dev;
int ret;
return dev_err_probe(dev, ret,
"Failed to power-on the device\n");
- ret = devm_add_action_or_reset(dev, devm_pci_pwrctl_pwrseq_power_off,
+ ret = devm_add_action_or_reset(dev, devm_pci_pwrctrl_pwrseq_power_off,
data->pwrseq);
if (ret)
return ret;
- pci_pwrctl_init(&data->ctx, dev);
+ pci_pwrctrl_init(&data->ctx, dev);
- ret = devm_pci_pwrctl_device_set_ready(dev, &data->ctx);
+ ret = devm_pci_pwrctrl_device_set_ready(dev, &data->ctx);
if (ret)
return dev_err_probe(dev, ret,
- "Failed to register the pwrctl wrapper\n");
+ "Failed to register the pwrctrl wrapper\n");
return 0;
}
-static const struct of_device_id pci_pwrctl_pwrseq_of_match[] = {
+static const struct of_device_id pci_pwrctrl_pwrseq_of_match[] = {
{
/* ATH11K in QCA6390 package. */
.compatible = "pci17cb,1101",
},
{ }
};
-MODULE_DEVICE_TABLE(of, pci_pwrctl_pwrseq_of_match);
+MODULE_DEVICE_TABLE(of, pci_pwrctrl_pwrseq_of_match);
-static struct platform_driver pci_pwrctl_pwrseq_driver = {
+static struct platform_driver pci_pwrctrl_pwrseq_driver = {
.driver = {
- .name = "pci-pwrctl-pwrseq",
- .of_match_table = pci_pwrctl_pwrseq_of_match,
+ .name = "pci-pwrctrl-pwrseq",
+ .of_match_table = pci_pwrctrl_pwrseq_of_match,
},
- .probe = pci_pwrctl_pwrseq_probe,
+ .probe = pci_pwrctrl_pwrseq_probe,
};
-module_platform_driver(pci_pwrctl_pwrseq_driver);
+module_platform_driver(pci_pwrctrl_pwrseq_driver);
MODULE_AUTHOR("Bartosz Golaszewski <bartosz.golaszewski@linaro.org>");
MODULE_DESCRIPTION("Generic PCI Power Control module for power sequenced devices");
}
}
-static void pci_pwrctl_unregister(struct device *dev)
+static void pci_pwrctrl_unregister(struct device *dev)
{
struct platform_device *pdev;
pci_pme_active(dev, false);
if (pci_dev_is_added(dev)) {
- pci_pwrctl_unregister(&dev->dev);
+ pci_pwrctrl_unregister(&dev->dev);
device_release_driver(&dev->dev);
pci_proc_detach_device(dev);
pci_remove_sysfs_dev_files(dev);
* Copyright (C) 2024 Linaro Ltd.
*/
-#ifndef __PCI_PWRCTL_H__
-#define __PCI_PWRCTL_H__
+#ifndef __PCI_PWRCTRL_H__
+#define __PCI_PWRCTRL_H__
#include <linux/notifier.h>
#include <linux/workqueue.h>
*/
/**
- * struct pci_pwrctl - PCI device power control context.
+ * struct pci_pwrctrl - PCI device power control context.
* @dev: Address of the power controlling device.
*
* An object of this type must be allocated by the PCI power control device and
- * passed to the pwrctl subsystem to trigger a bus rescan and setup a device
+ * passed to the pwrctrl subsystem to trigger a bus rescan and setup a device
* link with the device once it's up.
*/
-struct pci_pwrctl {
+struct pci_pwrctrl {
struct device *dev;
/* Private: don't use. */
struct work_struct work;
};
-void pci_pwrctl_init(struct pci_pwrctl *pwrctl, struct device *dev);
-int pci_pwrctl_device_set_ready(struct pci_pwrctl *pwrctl);
-void pci_pwrctl_device_unset_ready(struct pci_pwrctl *pwrctl);
-int devm_pci_pwrctl_device_set_ready(struct device *dev,
- struct pci_pwrctl *pwrctl);
+void pci_pwrctrl_init(struct pci_pwrctrl *pwrctrl, struct device *dev);
+int pci_pwrctrl_device_set_ready(struct pci_pwrctrl *pwrctrl);
+void pci_pwrctrl_device_unset_ready(struct pci_pwrctrl *pwrctrl);
+int devm_pci_pwrctrl_device_set_ready(struct device *dev,
+ struct pci_pwrctrl *pwrctrl);
-#endif /* __PCI_PWRCTL_H__ */
+#endif /* __PCI_PWRCTRL_H__ */
projects / linux-2.6-microblaze.git / commitdiff