[PATCH 2/2] ARM: OMAP4: TWL6030: ensure sys_nirq1 is mux'd and wakeup enabled

Kevin Hilman khilman at ti.com
Thu Jun 28 13:01:32 EDT 2012

The SYS_NIRQ1 pin is the interupt line for the PMIC part of the TWL6030
and interrupts from the PMIC are needed as wakeup sources.

Ensure this pin is mux'd as input and has wakeup enabled so PMIC
interupts (e.g. RTC) can be used as wakeup sources.

Tested on OMAP4430/Panda.

Signed-off-by: Kevin Hilman <khilman at ti.com>
 arch/arm/mach-omap2/twl-common.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c
index 119d5a9..43a9790 100644
--- a/arch/arm/mach-omap2/twl-common.c
+++ b/arch/arm/mach-omap2/twl-common.c
@@ -32,6 +32,7 @@
 #include "twl-common.h"
 #include "pm.h"
 #include "voltage.h"
+#include "mux.h"
 static struct i2c_board_info __initdata pmic_i2c_board_info = {
 	.addr		= 0x48,
@@ -77,6 +78,7 @@ void __init omap4_pmic_init(const char *pmic_type,
 		    struct twl6040_platform_data *twl6040_data, int twl6040_irq)
 	/* PMIC part*/
+	omap_mux_init_signal("sys_nirq1", OMAP_PIN_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE);
 	strncpy(omap4_i2c1_board_info[0].type, pmic_type,
 	omap4_i2c1_board_info[0].irq = OMAP44XX_IRQ_SYS_1N;

More information about the linux-arm-kernel mailing list