diff options
Diffstat (limited to 'drivers/extcon/extcon-usb-gpio.c')
| -rw-r--r-- | drivers/extcon/extcon-usb-gpio.c | 32 |
1 files changed, 18 insertions, 14 deletions
diff --git a/drivers/extcon/extcon-usb-gpio.c b/drivers/extcon/extcon-usb-gpio.c index 2b2fecffb1ad..2512660dc4b9 100644 --- a/drivers/extcon/extcon-usb-gpio.c +++ b/drivers/extcon/extcon-usb-gpio.c @@ -24,8 +24,10 @@ #include <linux/module.h> #include <linux/of_gpio.h> #include <linux/platform_device.h> +#include <linux/pm_wakeirq.h> #include <linux/slab.h> #include <linux/workqueue.h> +#include <linux/acpi.h> #define USB_GPIO_DEBOUNCE_MS 20 /* ms */ @@ -91,7 +93,7 @@ static int usb_extcon_probe(struct platform_device *pdev) struct usb_extcon_info *info; int ret; - if (!np) + if (!np && !ACPI_HANDLE(dev)) return -EINVAL; info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); @@ -141,7 +143,8 @@ static int usb_extcon_probe(struct platform_device *pdev) } platform_set_drvdata(pdev, info); - device_init_wakeup(dev, 1); + device_init_wakeup(dev, true); + dev_pm_set_wake_irq(dev, info->id_irq); /* Perform initial detection */ usb_extcon_detect_cable(&info->wq_detcable.work); @@ -155,6 +158,9 @@ static int usb_extcon_remove(struct platform_device *pdev) cancel_delayed_work_sync(&info->wq_detcable); + dev_pm_clear_wake_irq(&pdev->dev); + device_init_wakeup(&pdev->dev, false); + return 0; } @@ -164,12 +170,6 @@ static int usb_extcon_suspend(struct device *dev) struct usb_extcon_info *info = dev_get_drvdata(dev); int ret = 0; - if (device_may_wakeup(dev)) { - ret = enable_irq_wake(info->id_irq); - if (ret) - return ret; - } - /* * We don't want to process any IRQs after this point * as GPIOs used behind I2C subsystem might not be @@ -185,13 +185,10 @@ static int usb_extcon_resume(struct device *dev) struct usb_extcon_info *info = dev_get_drvdata(dev); int ret = 0; - if (device_may_wakeup(dev)) { - ret = disable_irq_wake(info->id_irq); - if (ret) - return ret; - } - enable_irq(info->id_irq); + if (!device_may_wakeup(dev)) + queue_delayed_work(system_power_efficient_wq, + &info->wq_detcable, 0); return ret; } @@ -206,6 +203,12 @@ static const struct of_device_id usb_extcon_dt_match[] = { }; MODULE_DEVICE_TABLE(of, usb_extcon_dt_match); +static const struct platform_device_id usb_extcon_platform_ids[] = { + { .name = "extcon-usb-gpio", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(platform, usb_extcon_platform_ids); + static struct platform_driver usb_extcon_driver = { .probe = usb_extcon_probe, .remove = usb_extcon_remove, @@ -214,6 +217,7 @@ static struct platform_driver usb_extcon_driver = { .pm = &usb_extcon_pm_ops, .of_match_table = usb_extcon_dt_match, }, + .id_table = usb_extcon_platform_ids, }; module_platform_driver(usb_extcon_driver); |