[2/3] twl4030: keypad: Hooks for board specific suspend-resume

Commit Message

Sanjeev Premi Feb. 4, 2010, 4:06 p.m. UTC

None

Patch

diff --git a/drivers/input/keyboard/twl4030_keypad.c b/drivers/input/keyboard/twl4030_keypad.c
index af0651d..9950d7e 100644
--- a/drivers/input/keyboard/twl4030_keypad.c
+++ b/drivers/input/keyboard/twl4030_keypad.c
@@ -442,11 +442,21 @@  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/twl.h b/include/linux/i2c/twl.h
index bf1c5be..eefabf2 100644
--- a/include/linux/i2c/twl.h
+++ b/include/linux/i2c/twl.h
@@ -487,6 +487,18 @@  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 {