mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-06 13:17:31 +02:00
77 lines
2.7 KiB
Diff
77 lines
2.7 KiB
Diff
|
From 85ef1fb82db8188fd5a615e557bf5407113d163f Mon Sep 17 00:00:00 2001
|
||
|
|
From: Mike Westerhof <mwester@dls.net>
|
||
|
|
Date: Sun, 10 Aug 2008 09:13:20 +0100
|
||
|
|
Subject: [PATCH] silence-serial-console-gta01.patch
|
||
|
|
|
||
|
|
This patch ensures that no console data will go the UART while
|
||
|
|
the GSM mux is switched to the GSM. This is necessary despite
|
||
|
|
the code that disables the console due to the fact that the
|
||
|
|
console resumes before the neo1973_pm_gsm driver, and consoles
|
||
|
|
always resume in the "on" state.
|
||
|
|
|
||
|
|
Signed-off-by: Mike Westerhof <mwester@dls.net>
|
||
|
|
---
|
||
|
|
arch/arm/plat-s3c24xx/neo1973_pm_gsm.c | 3 +++
|
||
|
|
drivers/serial/s3c2410.c | 10 ++++++++++
|
||
|
|
2 files changed, 13 insertions(+), 0 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c b/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c
|
||
|
|
index 901f8fb..8d5e41c 100644
|
||
|
|
--- a/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c
|
||
|
|
+++ b/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c
|
||
|
|
@@ -31,6 +31,7 @@
|
||
|
|
#include <asm/arch/regs-gpioj.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
+extern void s3c24xx_serial_console_set_silence(int silence);
|
||
|
|
extern void s3c24xx_serial_register_resume_dependency(struct resume_dependency *
|
||
|
|
resume_dependency, int uart_index);
|
||
|
|
|
||
|
|
@@ -105,6 +106,7 @@ static ssize_t gsm_write(struct device *dev, struct device_attribute *attr,
|
||
|
|
"disconnecting serial console\n");
|
||
|
|
|
||
|
|
console_stop(gta01_gsm.con);
|
||
|
|
+ s3c24xx_serial_console_set_silence(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (gta01_gsm.gpio_ngsm_en)
|
||
|
|
@@ -144,6 +146,7 @@ static ssize_t gsm_write(struct device *dev, struct device_attribute *attr,
|
||
|
|
s3c2410_gpio_setpin(gta01_gsm.gpio_ngsm_en, 1);
|
||
|
|
|
||
|
|
if (gta01_gsm.con) {
|
||
|
|
+ s3c24xx_serial_console_set_silence(0);
|
||
|
|
console_start(gta01_gsm.con);
|
||
|
|
|
||
|
|
dev_dbg(dev, "powered down GSM, thus enabling "
|
||
|
|
diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c
|
||
|
|
index d0b55b1..8de1564 100644
|
||
|
|
--- a/drivers/serial/s3c2410.c
|
||
|
|
+++ b/drivers/serial/s3c2410.c
|
||
|
|
@@ -1791,6 +1791,13 @@ module_exit(s3c24xx_serial_modexit);
|
||
|
|
#ifdef CONFIG_SERIAL_S3C2410_CONSOLE
|
||
|
|
|
||
|
|
static struct uart_port *cons_uart;
|
||
|
|
+static int cons_silenced;
|
||
|
|
+
|
||
|
|
+void s3c24xx_serial_console_set_silence(int silenced)
|
||
|
|
+{
|
||
|
|
+ cons_silenced = silenced;
|
||
|
|
+}
|
||
|
|
+EXPORT_SYMBOL(s3c24xx_serial_console_set_silence);
|
||
|
|
|
||
|
|
static int
|
||
|
|
s3c24xx_serial_console_txrdy(struct uart_port *port, unsigned int ufcon)
|
||
|
|
@@ -1817,6 +1824,9 @@ s3c24xx_serial_console_putchar(struct uart_port *port, int ch)
|
||
|
|
unsigned int ufcon = rd_regl(cons_uart, S3C2410_UFCON);
|
||
|
|
unsigned int umcon = rd_regl(cons_uart, S3C2410_UMCON);
|
||
|
|
|
||
|
|
+ if (cons_silenced)
|
||
|
|
+ return;
|
||
|
|
+
|
||
|
|
/* If auto HW flow control enabled, temporarily turn it off */
|
||
|
|
if (umcon & S3C2410_UMCOM_AFC)
|
||
|
|
wr_regl(port, S3C2410_UMCON, (umcon & !S3C2410_UMCOM_AFC));
|
||
|
|
--
|
||
|
|
1.5.6.3
|
||
|
|
|