diff options
Diffstat (limited to 'target/linux/s3c24xx/patches-2.6.26/1210-fix-no-uart-leak-when-gps-off.patch.patch')
| -rwxr-xr-x | target/linux/s3c24xx/patches-2.6.26/1210-fix-no-uart-leak-when-gps-off.patch.patch | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/target/linux/s3c24xx/patches-2.6.26/1210-fix-no-uart-leak-when-gps-off.patch.patch b/target/linux/s3c24xx/patches-2.6.26/1210-fix-no-uart-leak-when-gps-off.patch.patch deleted file mode 100755 index 0fc855918c..0000000000 --- a/target/linux/s3c24xx/patches-2.6.26/1210-fix-no-uart-leak-when-gps-off.patch.patch +++ /dev/null @@ -1,123 +0,0 @@ -From 75c6d53772b66d6d4237745a5d3185f836e05b70 Mon Sep 17 00:00:00 2001 -From: Andy Green <andy@openmoko.com> -Date: Fri, 25 Jul 2008 23:06:19 +0100 -Subject: [PATCH] fix-no-uart-leak-when-gps-off.patch - -During the suspend current reduction campaign on suspend I -forced the GPS UART to be GPIO and to drive 0 into the GPS -unit so we would not burn current there. On resume it lets -the pins act as UARTs again. But really, we should do this -all the time that the GPS unit is off, lest we leak it -enough power to hold internal state and make trouble. - -Signed-off-by: Andy Green <andy@openmoko.com> ---- - arch/arm/plat-s3c24xx/neo1973_pm_gps.c | 57 +++++++++++++------------------ - 1 files changed, 24 insertions(+), 33 deletions(-) - -diff --git a/arch/arm/plat-s3c24xx/neo1973_pm_gps.c b/arch/arm/plat-s3c24xx/neo1973_pm_gps.c -index 9c6adfa..8cd583d 100644 ---- a/arch/arm/plat-s3c24xx/neo1973_pm_gps.c -+++ b/arch/arm/plat-s3c24xx/neo1973_pm_gps.c -@@ -272,9 +272,23 @@ static void gps_pwron_set(int on) - - #ifdef CONFIG_MACH_NEO1973_GTA02 - if (machine_is_neo1973_gta02()) { -- if (on) -+ if (on) { - pcf50633_voltage_set(pcf50633_global, - PCF50633_REGULATOR_LDO5, 3000); -+ /* return UART pins to being UART pins */ -+ s3c2410_gpio_cfgpin(S3C2410_GPH4, S3C2410_GPH4_TXD1); -+ /* remove pulldown now it won't be floating any more */ -+ s3c2410_gpio_pullup(S3C2410_GPH5, 0); -+ } else { -+ /* -+ * take care not to power unpowered GPS from UART TX -+ * return them to GPIO and force low -+ */ -+ 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); -+ } - pcf50633_onoff_set(pcf50633_global, - PCF50633_REGULATOR_LDO5, on); - } -@@ -284,21 +298,14 @@ static void gps_pwron_set(int on) - static int gps_pwron_get(void) - { - #ifdef CONFIG_MACH_NEO1973_GTA01 -- if (machine_is_neo1973_gta01()) { -- if (s3c2410_gpio_getpin(GTA01_GPIO_GPS_PWRON)) -- return 1; -- else -- return 0; -- } -+ if (machine_is_neo1973_gta01()) -+ return !!s3c2410_gpio_getpin(GTA01_GPIO_GPS_PWRON); - #endif /* CONFIG_MACH_NEO1973_GTA01 */ - - #ifdef CONFIG_MACH_NEO1973_GTA02 -- if (machine_is_neo1973_gta02()) { -- if (pcf50633_onoff_get(pcf50633_global, PCF50633_REGULATOR_LDO5)) -- return 1; -- else -- return 0; -- } -+ if (machine_is_neo1973_gta02()) -+ return !!pcf50633_onoff_get(pcf50633_global, -+ PCF50633_REGULATOR_LDO5); - #endif /* CONFIG_MACH_NEO1973_GTA02 */ - return -1; - } -@@ -496,15 +503,8 @@ static int gta01_pm_gps_suspend(struct platform_device *pdev, - #endif /* CONFIG_MACH_NEO1973_GTA01 */ - - #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); -- -+ if (machine_is_neo1973_gta02()) - gps_pwron_set(0); -- } - #endif /* CONFIG_MACH_NEO1973_GTA02 */ - - return 0; -@@ -513,26 +513,17 @@ static int gta01_pm_gps_suspend(struct platform_device *pdev, - static int gta01_pm_gps_resume(struct platform_device *pdev) - { - #ifdef CONFIG_MACH_NEO1973_GTA01 -- if (machine_is_neo1973_gta01()) { -+ if (machine_is_neo1973_gta01()) - if (neo1973_gps.power_was_on) - gps_power_sequence_up(); -- } - #endif /* CONFIG_MACH_NEO1973_GTA01 */ - - #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); -- -+ if (machine_is_neo1973_gta02()) - if (neo1973_gps.power_was_on) - gps_pwron_set(1); - #endif /* CONFIG_MACH_NEO1973_GTA02 */ -- } -+ - return 0; - } - #else --- -1.5.6.3 - |