mirror of https://github.com/hak5/openwrt-owl.git
93 lines
2.8 KiB
Diff
93 lines
2.8 KiB
Diff
|
From cba90f4bb9fc765be789e7d9e0f836ad4670c87f Mon Sep 17 00:00:00 2001
|
||
|
|
From: Andy Green <andy@openmoko.com>
|
||
|
|
Date: Wed, 30 Jul 2008 14:37:17 +0100
|
||
|
|
Subject: [PATCH] use-gta02-glamo-mci-sd-dynamic-clock.patch
|
||
|
|
|
||
|
|
This patch uses the new glamo-mci slow clock ratio
|
||
|
|
patch in order to dynamically reduce SD Card clock
|
||
|
|
rate when the GPS unit is powered on GTA02.
|
||
|
|
|
||
|
|
Signed-off-by: Andy Green <andy@openmoko.com>
|
||
|
|
---
|
||
|
|
arch/arm/mach-s3c2440/mach-gta02.c | 12 ++++++++++++
|
||
|
|
arch/arm/plat-s3c24xx/neo1973_pm_gps.c | 12 +++++++++---
|
||
|
|
2 files changed, 21 insertions(+), 3 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
|
||
|
|
index 382837d..8e43c4a 100644
|
||
|
|
--- a/arch/arm/mach-s3c2440/mach-gta02.c
|
||
|
|
+++ b/arch/arm/mach-s3c2440/mach-gta02.c
|
||
|
|
@@ -85,6 +85,8 @@
|
||
|
|
#include <linux/gta02_hdq.h>
|
||
|
|
#include <linux/bq27000_battery.h>
|
||
|
|
|
||
|
|
+#include "../plat-s3c24xx/neo1973_pm_gps.h"
|
||
|
|
+
|
||
|
|
/* arbitrates which sensor IRQ owns the shared SPI bus */
|
||
|
|
static spinlock_t motion_irq_lock;
|
||
|
|
|
||
|
|
@@ -1424,6 +1426,15 @@ static void gta02_glamo_mci_suspending(struct platform_device *dev)
|
||
|
|
|
||
|
|
/* Smedia Glamo 3362 */
|
||
|
|
|
||
|
|
+/*
|
||
|
|
+ * we crank down SD Card clock dynamically when GPS is powered
|
||
|
|
+ */
|
||
|
|
+
|
||
|
|
+static int gta02_glamo_mci_use_slow(void)
|
||
|
|
+{
|
||
|
|
+ return neo1973_pm_gps_is_on();
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
static struct glamofb_platform_data gta02_glamo_pdata = {
|
||
|
|
.width = 43,
|
||
|
|
.height = 58,
|
||
|
|
@@ -1456,6 +1467,7 @@ static struct glamofb_platform_data gta02_glamo_pdata = {
|
||
|
|
|
||
|
|
/* glamo MMC function platform data */
|
||
|
|
.glamo_set_mci_power = gta02_glamo_mmc_set_power,
|
||
|
|
+ .glamo_mci_use_slow = gta02_glamo_mci_use_slow,
|
||
|
|
.glamo_irq_is_wired = glamo_irq_is_wired,
|
||
|
|
.mci_suspending = gta02_glamo_mci_suspending,
|
||
|
|
.mci_all_dependencies_resumed =
|
||
|
|
diff --git a/arch/arm/plat-s3c24xx/neo1973_pm_gps.c b/arch/arm/plat-s3c24xx/neo1973_pm_gps.c
|
||
|
|
index 8cd583d..a21b763 100644
|
||
|
|
--- a/arch/arm/plat-s3c24xx/neo1973_pm_gps.c
|
||
|
|
+++ b/arch/arm/plat-s3c24xx/neo1973_pm_gps.c
|
||
|
|
@@ -39,6 +39,12 @@ struct neo1973_pm_gps_data {
|
||
|
|
|
||
|
|
static struct neo1973_pm_gps_data neo1973_gps;
|
||
|
|
|
||
|
|
+int neo1973_pm_gps_is_on(void)
|
||
|
|
+{
|
||
|
|
+ return neo1973_gps.power_was_on;
|
||
|
|
+}
|
||
|
|
+EXPORT_SYMBOL_GPL(neo1973_pm_gps_is_on);
|
||
|
|
+
|
||
|
|
/* This is the 2.8V supply for the RTC crystal, the mail clock crystal and
|
||
|
|
* the input to VDD_RF */
|
||
|
|
static void gps_power_2v8_set(int on)
|
||
|
|
@@ -265,6 +271,9 @@ static int gps_power_1v5_get(void)
|
||
|
|
/* This is the POWERON pin */
|
||
|
|
static void gps_pwron_set(int on)
|
||
|
|
{
|
||
|
|
+
|
||
|
|
+ neo1973_gps.power_was_on = !!on;
|
||
|
|
+
|
||
|
|
#ifdef CONFIG_MACH_NEO1973_GTA01
|
||
|
|
if (machine_is_neo1973_gta01())
|
||
|
|
neo1973_gpb_setpin(GTA01_GPIO_GPS_PWRON, on);
|
||
|
|
@@ -492,9 +501,6 @@ static DEVICE_ATTR(power_sequence, 0644, power_sequence_read,
|
||
|
|
static int gta01_pm_gps_suspend(struct platform_device *pdev,
|
||
|
|
pm_message_t state)
|
||
|
|
{
|
||
|
|
-
|
||
|
|
- neo1973_gps.power_was_on = gps_pwron_get();
|
||
|
|
-
|
||
|
|
#ifdef CONFIG_MACH_NEO1973_GTA01
|
||
|
|
if (machine_is_neo1973_gta01()) {
|
||
|
|
/* FIXME */
|
||
|
|
--
|
||
|
|
1.5.6.3
|
||
|
|
|