This patch adds suspend, resume functions to the
TWL4030 keypad driver when CONFIG_PM is selected.
Signed-off-by: Sanjeev Premi <premi@xxxxxx>
---
drivers/input/keyboard/twl4030_keypad.c | 18 ++++++++++++++++++
1 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/drivers/input/keyboard/twl4030_keypad.c b/drivers/input/keyboard/twl4030_keypad.c
index 21d6184..af0651d 100644
--- a/drivers/input/keyboard/twl4030_keypad.c
+++ b/drivers/input/keyboard/twl4030_keypad.c
@@ -439,6 +439,22 @@ static int __devexit twl4030_kp_remove(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_PM
+static int twl4030_kp_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ return 0;
+}
+
+static int twl4030_kp_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+#else
+#define twl4030_kp_suspend NULL
+#define twl4030_kp_resume NULL
+#endif
+
+
/*
* NOTE: twl4030 are multi-function devices connected via I2C.
* So this device is a child of an I2C parent, thus it needs to
@@ -448,6 +464,8 @@ static int __devexit twl4030_kp_remove(struct platform_device *pdev)
static struct platform_driver twl4030_kp_driver = {
.probe = twl4030_kp_probe,
.remove = __devexit_p(twl4030_kp_remove),
+ .suspend = twl4030_kp_suspend,
+ .resume = twl4030_kp_resume,
.driver = {
.name = "twl4030_keypad",
.owner = THIS_MODULE,
--
1.6.2.2
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