From: Jonas Aaberg <[email protected]>

Cc: Dmitry Torokhov <[email protected]>
Cc: [email protected]
Signed-off-by: Lee Jones <[email protected]>
Signed-off-by: Jonas Aaberg <[email protected]>
Signed-off-by: Philippe Langlais <[email protected]>
Reviewed-by: Bengt Jonsson <[email protected]>
---
 drivers/input/keyboard/gpio_keys.c |   17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/input/keyboard/gpio_keys.c 
b/drivers/input/keyboard/gpio_keys.c
index 2cf6757..cff548c 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -29,6 +29,7 @@
 #include <linux/of_platform.h>
 #include <linux/of_gpio.h>
 #include <linux/spinlock.h>
+#include <linux/pm_runtime.h>
 
 struct gpio_button_data {
        const struct gpio_keys_button *button;
@@ -533,6 +534,7 @@ static int gpio_keys_open(struct input_dev *input)
        struct gpio_keys_drvdata *ddata = input_get_drvdata(input);
        const struct gpio_keys_platform_data *pdata = ddata->pdata;
 
+       pm_runtime_get_sync(input->dev.parent);
        ddata->enabled = true;
 
        return pdata->enable ? pdata->enable(input->dev.parent) : 0;
@@ -547,6 +549,8 @@ static void gpio_keys_close(struct input_dev *input)
 
        if (pdata->disable)
                pdata->disable(input->dev.parent);
+
+       pm_runtime_put(input->dev.parent);
 }
 
 /*
@@ -708,6 +712,8 @@ static int __devinit gpio_keys_probe(struct platform_device 
*pdev)
        input->id.product = 0x0001;
        input->id.version = 0x0100;
 
+       pm_runtime_enable(&pdev->dev);
+
        /* Enable auto repeat feature of Linux input subsystem */
        if (pdata->rep)
                __set_bit(EV_REP, input->evbit);
@@ -773,6 +779,8 @@ static int __devexit gpio_keys_remove(struct 
platform_device *pdev)
        struct input_dev *input = ddata->input;
        int i;
 
+       pm_runtime_disable(&pdev->dev);
+
        sysfs_remove_group(&pdev->dev.kobj, &gpio_keys_attr_group);
 
        device_init_wakeup(&pdev->dev, 0);
@@ -805,8 +813,8 @@ static int gpio_keys_suspend(struct device *dev)
                }
        } else {
                ddata->enable_after_suspend = ddata->enabled;
-               if (ddata->enabled)
-                       gpio_keys_close(ddata->input);
+               if (ddata->enabled && ddata->disable)
+                       ddata->disable(dev);
        }
 
        return 0;
@@ -826,8 +834,9 @@ static int gpio_keys_resume(struct device *dev)
                        gpio_keys_gpio_report_event(bdata);
        }
 
-       if (!device_may_wakeup(dev) && ddata->enable_after_suspend)
-               gpio_keys_open(ddata->input);
+       if (!device_may_wakeup(dev) && ddata->enable_after_suspend
+           && ddata->enable)
+               ddata->enable(dev);
 
        input_sync(ddata->input);
 
-- 
1.7.9.5

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