Input: wm97xx-core - support use as a wakeup source
The WM97xx touch screen controllers can be used to generate a wakeup
event when the system is suspended. Provide a new core API call
wm97xx_set_suspend_mode() allowing machine drivers to enable this. If no
suspend_mode is provided then the touch panel will be powered down when
the system is suspended.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
diff --git a/include/linux/wm97xx.h b/include/linux/wm97xx.h
index ed01c7d..4d13732 100644
--- a/include/linux/wm97xx.h
+++ b/include/linux/wm97xx.h
@@ -282,6 +282,7 @@
unsigned pen_is_down:1; /* Pen is down */
unsigned aux_waiting:1; /* aux measurement waiting */
unsigned pen_probably_down:1; /* used in polling mode */
+ u16 suspend_mode; /* PRP in suspend mode */
};
/*
@@ -297,6 +298,8 @@
enum wm97xx_gpio_sticky sticky,
enum wm97xx_gpio_wake wake);
+void wm97xx_set_suspend_mode(struct wm97xx *wm, u16 mode);
+
/* codec AC97 IO access */
int wm97xx_reg_read(struct wm97xx *wm, u16 reg);
void wm97xx_reg_write(struct wm97xx *wm, u16 reg, u16 val);