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-rwxr-xr-xtarget/linux/s3c24xx/patches/0091-fix-suspend-gps-tx-level.patch.patch47
1 files changed, 47 insertions, 0 deletions
diff --git a/target/linux/s3c24xx/patches/0091-fix-suspend-gps-tx-level.patch.patch b/target/linux/s3c24xx/patches/0091-fix-suspend-gps-tx-level.patch.patch
new file mode 100755
index 0000000000..41b692a1be
--- /dev/null
+++ b/target/linux/s3c24xx/patches/0091-fix-suspend-gps-tx-level.patch.patch
@@ -0,0 +1,47 @@
+From 626e5a4e87bfc9471c3ded7da839c41a94088843 Mon Sep 17 00:00:00 2001
+From: warmcat <andy@warmcat.com>
+Date: Fri, 25 Jul 2008 23:06:02 +0100
+Subject: [PATCH] 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>
+---
+ arch/arm/plat-s3c24xx/neo1973_pm_gps.c | 14 ++++++++++++++
+ 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 6bd8054..e8cfb96 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);
+--
+1.5.6.3
+