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| author | Marko Katic <dromede@gmail.com> | 2012-10-25 18:51:38 +0200 |
|---|---|---|
| committer | Haojian Zhuang <haojian.zhuang@gmail.com> | 2012-10-28 07:53:45 +0800 |
| commit | 510fcb0d331f314cd20d0067d56f29302846f47b (patch) | |
| tree | 51aaba7d6ff4ea23e0b77280170f1dff1615dfb5 /arch/arm/mach-pxa | |
| parent | 8d6b00f5d639cfc28487ef412589e35b4e6ac7c7 (diff) | |
| download | op-kernel-dev-510fcb0d331f314cd20d0067d56f29302846f47b.zip op-kernel-dev-510fcb0d331f314cd20d0067d56f29302846f47b.tar.gz | |
ARM: pxa/spitz_pm: Fix hang when resuming from STR
Devices that use spitz_pm.c will fail to resume
from STR (Suspend To Ram) when the charger plug is inserted
or removed when a device is in STR mode. The culprit is
a misconfigured gpio line - GPIO18. GPIO18 should be configured as a
regular GPIO input but it gets configured as an alternate function
GPIO18_RDY. And then later in postsuspend() it gets configured as
a regular GPIO18 input line.
Fix this by removing the GPIO18_RDY configuration so that GPIO18
only gets configured as a regular gpio input.
Signed-off-by: Marko Katic <dromede@gmail.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Diffstat (limited to 'arch/arm/mach-pxa')
| -rw-r--r-- | arch/arm/mach-pxa/spitz_pm.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/arch/arm/mach-pxa/spitz_pm.c b/arch/arm/mach-pxa/spitz_pm.c index 438f02f..842596d 100644 --- a/arch/arm/mach-pxa/spitz_pm.c +++ b/arch/arm/mach-pxa/spitz_pm.c @@ -86,10 +86,7 @@ static void spitz_discharge1(int on) gpio_set_value(SPITZ_GPIO_LED_GREEN, on); } -static unsigned long gpio18_config[] = { - GPIO18_RDY, - GPIO18_GPIO, -}; +static unsigned long gpio18_config = GPIO18_GPIO; static void spitz_presuspend(void) { @@ -112,7 +109,7 @@ static void spitz_presuspend(void) PGSR3 &= ~SPITZ_GPIO_G3_STROBE_BIT; PGSR2 |= GPIO_bit(SPITZ_GPIO_KEY_STROBE0); - pxa2xx_mfp_config(&gpio18_config[0], 1); + pxa2xx_mfp_config(&gpio18_config, 1); gpio_request_one(18, GPIOF_OUT_INIT_HIGH, "Unknown"); gpio_free(18); @@ -131,7 +128,6 @@ static void spitz_presuspend(void) static void spitz_postsuspend(void) { - pxa2xx_mfp_config(&gpio18_config[1], 1); } static int spitz_should_wakeup(unsigned int resume_on_alarm) |
