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authorwarmcat <andy@warmcat.com>2008-11-19 17:09:35 +0000
committerAndy Green <agreen@pads.home.warmcat.com>2008-11-19 17:09:35 +0000
commit3a093322d18641ccba0704c826810d230289c68c (patch)
treebd006f45cbc8d4d8ba012db0f9dd88ae347f45f5 /arch
parent6b5297122074ac393720b826fb534a2a4ad25772 (diff)
fix-suspend-gps-tx-level.patch
We used to drive output high into GPS unit in suspend Signed-off-by: Andy Green <andy@openmoko.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/plat-s3c24xx/neo1973_pm_gps.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/plat-s3c24xx/neo1973_pm_gps.c b/arch/arm/plat-s3c24xx/neo1973_pm_gps.c
index 6bd8054129e..e8cfb96e4c9 100644
--- a/arch/arm/plat-s3c24xx/neo1973_pm_gps.c
+++ b/arch/arm/plat-s3c24xx/neo1973_pm_gps.c
@@ -485,6 +485,12 @@ static int gta01_pm_gps_suspend(struct platform_device *pdev,
#ifdef CONFIG_MACH_NEO1973_GTA02
if (machine_is_neo1973_gta02()) {
+ /* take care not to power unpowered GPS from GPIO */
+ s3c2410_gpio_cfgpin(S3C2410_GPH4, S3C2410_GPH4_OUTP);
+ s3c2410_gpio_setpin(S3C2410_GPH4, 0);
+ /* don't let RX from unpowered GPS float */
+ s3c2410_gpio_pullup(S3C2410_GPH5, 1);
+
/* FIXME */
pcf50633_onoff_set(pcf50633_global,
PCF50633_REGULATOR_LDO5, 0);
@@ -505,6 +511,14 @@ static int gta01_pm_gps_resume(struct platform_device *pdev)
#ifdef CONFIG_MACH_NEO1973_GTA02
if (machine_is_neo1973_gta02()) {
+ /*
+ * resume TXD1 function since we power GPS now... er..
+ * WTF? FIXME We always power GPS on resume ??
+ */
+ s3c2410_gpio_cfgpin(S3C2410_GPH4, S3C2410_GPH4_TXD1);
+ /* remove pulldown now it won't be floating any more */
+ s3c2410_gpio_pullup(S3C2410_GPH5, 0);
+
/* FIXME */
pcf50633_onoff_set(pcf50633_global,
PCF50633_REGULATOR_LDO5, 1);