target/linux/s3c24xx/patches/0091-fix-suspend-gps-tx-level.patch.patch

   1 From 626e5a4e87bfc9471c3ded7da839c41a94088843 Mon Sep 17 00:00:00 2001
   2 From: warmcat <andy@warmcat.com>
   3 Date: Fri, 25 Jul 2008 23:06:02 +0100
   4 Subject: [PATCH] fix-suspend-gps-tx-level.patch
   5
   6 We used to drive output high into GPS unit in suspend
   7
   8 Signed-off-by: Andy Green <andy@openmoko.com>
   9 ---
  10  arch/arm/plat-s3c24xx/neo1973_pm_gps.c |   14 ++++++++++++++
  11  1 files changed, 14 insertions(+), 0 deletions(-)
  12
  13 diff --git a/arch/arm/plat-s3c24xx/neo1973_pm_gps.c b/arch/arm/plat-s3c24xx/neo1973_pm_gps.c
  14 index 6bd8054..e8cfb96 100644
  15 --- a/arch/arm/plat-s3c24xx/neo1973_pm_gps.c
  16 +++ b/arch/arm/plat-s3c24xx/neo1973_pm_gps.c
  17 @@ -485,6 +485,12 @@ static int gta01_pm_gps_suspend(struct platform_device *pdev,
  18
  19  #ifdef CONFIG_MACH_NEO1973_GTA02
  20         if (machine_is_neo1973_gta02()) {
  21 +               /* take care not to power unpowered GPS from GPIO */
  22 +               s3c2410_gpio_cfgpin(S3C2410_GPH4, S3C2410_GPH4_OUTP);
  23 +               s3c2410_gpio_setpin(S3C2410_GPH4, 0);
  24 +               /* don't let RX from unpowered GPS float */
  25 +               s3c2410_gpio_pullup(S3C2410_GPH5, 1);
  26 +
  27                 /* FIXME */
  28                 pcf50633_onoff_set(pcf50633_global,
  29                         PCF50633_REGULATOR_LDO5, 0);
  30 @@ -505,6 +511,14 @@ static int gta01_pm_gps_resume(struct platform_device *pdev)
  31
  32  #ifdef CONFIG_MACH_NEO1973_GTA02
  33         if (machine_is_neo1973_gta02()) {
  34 +               /*
  35 +                * resume TXD1 function since we power GPS now... er..
  36 +                * WTF?  FIXME We always power GPS on resume ??
  37 +                */
  38 +               s3c2410_gpio_cfgpin(S3C2410_GPH4, S3C2410_GPH4_TXD1);
  39 +               /* remove pulldown now it won't be floating any more */
  40 +               s3c2410_gpio_pullup(S3C2410_GPH5, 0);
  41 +
  42                 /* FIXME */
  43                 pcf50633_onoff_set(pcf50633_global,
  44                         PCF50633_REGULATOR_LDO5, 1);
  45 --
  46 1.5.6.3
  47