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authorPaul Parsons <lost.distance@yahoo.com>2012-05-02 16:49:24 +0100
committerHaojian Zhuang <haojian.zhuang@gmail.com>2012-05-03 09:51:20 +0800
commite949f93c591352f0376fdd192b4060a38c102ba5 (patch)
tree207fcd8c715847a2b38d5071faacb90bb6586d31 /arch/arm/mach-pxa/hx4700.c
parent89619d44eec8ed95b3b62b2fd6ddc56aeea41a95 (diff)
downloadblackbird-op-linux-e949f93c591352f0376fdd192b4060a38c102ba5.tar.gz
blackbird-op-linux-e949f93c591352f0376fdd192b4060a38c102ba5.zip
ARM: pxa: hx4700: Enable ASIC3 GPIO as a wakeup source
This patch enables the ASIC3 GPIO (12) as a wakeup source: 1. Set the WAKEUP_ON_EDGE_RISE MFP config bits for GPIO12 in hx4700_pin_config[]. 2. Call gpio_set_wake() for GPIO12. With GPIO12 thus enabled, the mfd/asic3 driver can enable its own GPIOs as wakeup sources by implementing a irq_set_wake() handler. Signed-off-by: Paul Parsons <lost.distance@yahoo.com> Cc: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Diffstat (limited to 'arch/arm/mach-pxa/hx4700.c')
-rw-r--r--arch/arm/mach-pxa/hx4700.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c
index fe8fb7adcac8..2fe0fa0cb383 100644
--- a/arch/arm/mach-pxa/hx4700.c
+++ b/arch/arm/mach-pxa/hx4700.c
@@ -125,7 +125,7 @@ static unsigned long hx4700_pin_config[] __initdata = {
GPIO88_GPIO,
/* HX4700 specific input GPIOs */
- GPIO12_GPIO, /* ASIC3_IRQ */
+ GPIO12_GPIO | WAKEUP_ON_EDGE_RISE, /* ASIC3_IRQ */
GPIO13_GPIO, /* W3220_IRQ */
GPIO14_GPIO, /* nWLAN_IRQ */
@@ -860,6 +860,7 @@ static void __init hx4700_init(void)
int ret;
pxa2xx_mfp_config(ARRAY_AND_SIZE(hx4700_pin_config));
+ gpio_set_wake(GPIO12_HX4700_ASIC3_IRQ, 1);
ret = gpio_request_array(ARRAY_AND_SIZE(global_gpios));
if (ret)
pr_err ("hx4700: Failed to request GPIOs.\n");
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