extcon: usb-gpio: switch to use pm wakeirq apis

Switch to use PM wakeirq APIs which automates wakeup IRQs
enabling/disabling and so allows to make code simpler.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

diff --git a/drivers/extcon/extcon-usb-gpio.c b/drivers/extcon/extcon-usb-gpio.c
index 2b2fecf..bc61d11 100644 (file)
--- a/drivers/extcon/extcon-usb-gpio.c
+++ b/drivers/extcon/extcon-usb-gpio.c
@@ -24,6 +24,7 @@
 #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>
 
@@ -141,7 +142,8 @@ 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 +157,9 @@ 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 +169,6 @@ 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
@@ -185,12 +184,6 @@ 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);
 
        return ret;