mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-01 07:49:22 +02:00
a95f9f92e2
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13619 3c298f89-4303-0410-b956-a3cf2f4a3e73
139 lines
4.1 KiB
Diff
Executable File
139 lines
4.1 KiB
Diff
Executable File
From 5bba01c998f5c88ab2337df915e135e0d950c7a9 Mon Sep 17 00:00:00 2001
|
|
From: Andy Green <andy@openmoko.com>
|
|
Date: Fri, 25 Jul 2008 23:06:16 +0100
|
|
Subject: [PATCH] fix-gsm-resume-problems.patch
|
|
|
|
Signed-off-by: Andy Green <andy@openmoko.com>
|
|
---
|
|
arch/arm/plat-s3c24xx/neo1973_pm_gsm.c | 19 +++++++++++++++++++
|
|
drivers/serial/s3c2410.c | 19 ++++++++++++++++++-
|
|
2 files changed, 37 insertions(+), 1 deletions(-)
|
|
|
|
diff --git a/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c b/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c
|
|
index 149b866..6b6b2f4 100644
|
|
--- a/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c
|
|
+++ b/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c
|
|
@@ -18,6 +18,7 @@
|
|
#include <linux/console.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/interrupt.h>
|
|
+#include <linux/resume-dependency.h>
|
|
|
|
#include <asm/gpio.h>
|
|
#include <asm/mach-types.h>
|
|
@@ -33,9 +34,12 @@
|
|
struct gta01pm_priv {
|
|
int gpio_ngsm_en;
|
|
int gpio_ndl_gsm;
|
|
+
|
|
struct console *con;
|
|
};
|
|
|
|
+struct resume_dependency resume_dep_gsm_uart;
|
|
+
|
|
static struct gta01pm_priv gta01_gsm;
|
|
|
|
static struct console *find_s3c24xx_console(void)
|
|
@@ -179,6 +183,8 @@ static DEVICE_ATTR(reset, 0644, gsm_read, gsm_write);
|
|
static DEVICE_ATTR(download, 0644, gsm_read, gsm_write);
|
|
|
|
#ifdef CONFIG_PM
|
|
+
|
|
+static int gta01_gsm_resume(struct platform_device *pdev);
|
|
static int gta01_gsm_suspend(struct platform_device *pdev, pm_message_t state)
|
|
{
|
|
/* GPIO state is saved/restored by S3C2410 core GPIO driver, so we
|
|
@@ -189,11 +195,22 @@ static int gta01_gsm_suspend(struct platform_device *pdev, pm_message_t state)
|
|
if (machine_is_neo1973_gta02())
|
|
s3c2410_gpio_setpin(GTA02_GPIO_nDL_GSM, 1);
|
|
|
|
+ /* register our resume dependency on the appropriate UART being up */
|
|
+ resume_dep_gsm_uart.callback = gta01_gsm_resume;
|
|
+ resume_dep_gsm_uart.context = (void *)pdev;
|
|
+
|
|
+ s3c24xx_serial_register_resume_dependency(&resume_dep_gsm_uart, 0);
|
|
+
|
|
return 0;
|
|
}
|
|
|
|
static int gta01_gsm_resume(struct platform_device *pdev)
|
|
{
|
|
+ if (resume_dep_gsm_uart.called_flag != 1)
|
|
+ return 0;
|
|
+
|
|
+ resume_dep_gsm_uart.called_flag++; /* only run once */
|
|
+
|
|
/* GPIO state is saved/restored by S3C2410 core GPIO driver, so we
|
|
* don't need to do much here. */
|
|
|
|
@@ -279,6 +296,8 @@ static int __init gta01_gsm_probe(struct platform_device *pdev)
|
|
if (machine_is_neo1973_gta02())
|
|
s3c2410_gpio_setpin(GTA02_GPIO_nDL_GSM, 1);
|
|
|
|
+ init_resume_dependency_list(&resume_dep_gsm_uart);
|
|
+
|
|
return sysfs_create_group(&pdev->dev.kobj, >a01_gsm_attr_group);
|
|
}
|
|
|
|
diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c
|
|
index bd87c79..32cceae 100644
|
|
--- a/drivers/serial/s3c2410.c
|
|
+++ b/drivers/serial/s3c2410.c
|
|
@@ -72,6 +72,7 @@
|
|
#include <linux/serial.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/clk.h>
|
|
+#include <linux/resume-dependency.h>
|
|
|
|
#include <asm/io.h>
|
|
#include <asm/irq.h>
|
|
@@ -112,6 +113,8 @@ struct s3c24xx_uart_port {
|
|
struct clk *clk;
|
|
struct clk *baudclk;
|
|
struct uart_port port;
|
|
+
|
|
+ struct resume_dependency resume_dependency;
|
|
};
|
|
|
|
|
|
@@ -1088,7 +1091,9 @@ static int s3c24xx_serial_probe(struct platform_device *dev,
|
|
ourport = &s3c24xx_serial_ports[probe_index];
|
|
probe_index++;
|
|
|
|
- dbg("%s: initialising port %p...\n", __func__, ourport);
|
|
+ init_resume_dependency_list(&ourport->resume_dependency);
|
|
+
|
|
+ dbg("%s: initialising port %p...\n", __FUNCTION__, ourport);
|
|
|
|
ret = s3c24xx_serial_init_port(ourport, info, dev);
|
|
if (ret < 0)
|
|
@@ -1128,6 +1133,16 @@ static int s3c24xx_serial_suspend(struct platform_device *dev, pm_message_t stat
|
|
return 0;
|
|
}
|
|
|
|
+void s3c24xx_serial_register_resume_dependency(struct resume_dependency *
|
|
+ resume_dependency, int uart_index)
|
|
+{
|
|
+ struct s3c24xx_uart_port *ourport = &s3c24xx_serial_ports[uart_index];
|
|
+
|
|
+ register_resume_dependency(&ourport->resume_dependency,
|
|
+ resume_dependency);
|
|
+}
|
|
+EXPORT_SYMBOL(s3c24xx_serial_register_resume_dependency);
|
|
+
|
|
static int s3c24xx_serial_resume(struct platform_device *dev)
|
|
{
|
|
struct uart_port *port = s3c24xx_dev_to_port(&dev->dev);
|
|
@@ -1141,6 +1156,8 @@ static int s3c24xx_serial_resume(struct platform_device *dev)
|
|
uart_resume_port(&s3c24xx_uart_drv, port);
|
|
}
|
|
|
|
+ callback_all_resume_dependencies(&ourport->resume_dependency);
|
|
+
|
|
return 0;
|
|
}
|
|
|
|
--
|
|
1.5.6.3
|
|
|