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fc54b9bf15
(stable-branch of Openmoko) git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13613 3c298f89-4303-0410-b956-a3cf2f4a3e73
48 lines
1.6 KiB
Diff
48 lines
1.6 KiB
Diff
From 0df922c0e1c6cdbfb8b2d2d0f7b474d09d121510 Mon Sep 17 00:00:00 2001
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From: warmcat <andy@warmcat.com>
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Date: Sun, 13 Apr 2008 07:25:51 +0100
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Subject: [PATCH] fix-suspend-gps-tx-level.patch
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We used to drive output high into GPS unit in suspend
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Signed-off-by: Andy Green <andy@openmoko.com>
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---
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arch/arm/plat-s3c24xx/neo1973_pm_gps.c | 14 ++++++++++++++
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1 files changed, 14 insertions(+), 0 deletions(-)
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diff --git a/arch/arm/plat-s3c24xx/neo1973_pm_gps.c b/arch/arm/plat-s3c24xx/neo1973_pm_gps.c
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index 6bd8054..e8cfb96 100644
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--- a/arch/arm/plat-s3c24xx/neo1973_pm_gps.c
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+++ b/arch/arm/plat-s3c24xx/neo1973_pm_gps.c
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@@ -485,6 +485,12 @@ static int gta01_pm_gps_suspend(struct platform_device *pdev,
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#ifdef CONFIG_MACH_NEO1973_GTA02
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if (machine_is_neo1973_gta02()) {
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+ /* take care not to power unpowered GPS from GPIO */
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+ s3c2410_gpio_cfgpin(S3C2410_GPH4, S3C2410_GPH4_OUTP);
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+ s3c2410_gpio_setpin(S3C2410_GPH4, 0);
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+ /* don't let RX from unpowered GPS float */
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+ s3c2410_gpio_pullup(S3C2410_GPH5, 1);
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+
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/* FIXME */
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pcf50633_onoff_set(pcf50633_global,
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PCF50633_REGULATOR_LDO5, 0);
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@@ -505,6 +511,14 @@ static int gta01_pm_gps_resume(struct platform_device *pdev)
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#ifdef CONFIG_MACH_NEO1973_GTA02
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if (machine_is_neo1973_gta02()) {
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+ /*
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+ * resume TXD1 function since we power GPS now... er..
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+ * WTF? FIXME We always power GPS on resume ??
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+ */
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+ s3c2410_gpio_cfgpin(S3C2410_GPH4, S3C2410_GPH4_TXD1);
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+ /* remove pulldown now it won't be floating any more */
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+ s3c2410_gpio_pullup(S3C2410_GPH5, 0);
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+
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/* FIXME */
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pcf50633_onoff_set(pcf50633_global,
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PCF50633_REGULATOR_LDO5, 1);
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--
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1.5.6.5
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