[2/4] OMAP3: PM: T2 keypad: Add board specific suspend-resume functions

Commit Message

Sanjeev Premi Nov. 9, 2009, 4:40 p.m. UTC

None

Patch

diff --git a/drivers/input/keyboard/twl4030_keypad.c b/drivers/input/keyboard/twl4030_keypad.c
index 01f2ddd..f58f3cf 100644
--- a/drivers/input/keyboard/twl4030_keypad.c
+++ b/drivers/input/keyboard/twl4030_keypad.c
@@ -449,11 +449,21 @@  static int __devexit twl4030_kp_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM
 static int twl4030_kp_suspend(struct platform_device *pdev, pm_message_t state)
 {
+	struct twl4030_keypad_data *pdata = pdev->dev.platform_data;
+
+	if (pdata->on_suspend)
+		pdata->on_suspend(pdata->pm_state);
+
 	return 0;
 }
 
 static int twl4030_kp_resume(struct platform_device *pdev)
 {
+	struct twl4030_keypad_data *pdata = pdev->dev.platform_data;
+
+	if (pdata->on_resume)
+		pdata->on_resume(pdata->pm_state);
+
 	return 0;
 }
 #else
diff --git a/include/linux/i2c/twl4030.h b/include/linux/i2c/twl4030.h
index 508824e..dcd633a 100644
--- a/include/linux/i2c/twl4030.h
+++ b/include/linux/i2c/twl4030.h
@@ -360,6 +360,18 @@  struct twl4030_keypad_data {
 	unsigned rows;
 	unsigned cols;
 	bool rep;
+#ifdef CONFIG_PM
+	/*
+	 * Board specific information required during suspend, resume.
+	 * E.g. configuration as wake-up source.
+	 */
+	void *pm_state;
+	/*
+	 * Hooks for board specific execution during suspend, resume.
+	 */
+	void (*on_suspend)(void *pstate);
+	void (*on_resume)(void *pstate);
+#endif
 };
 
 enum twl4030_usb_mode {