From 7e7270be85be64eeee2196bbc8cd877395870f40 Mon Sep 17 00:00:00 2001 From: Andy Green Date: Wed, 19 Nov 2008 17:09:52 +0000 Subject: fix-gsm-resume-problems.patch Signed-off-by: Andy Green --- arch/arm/plat-s3c24xx/neo1973_pm_gsm.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'arch/arm/plat-s3c24xx/neo1973_pm_gsm.c') diff --git a/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c b/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c index 149b8669add..6b6b2f4cc7d 100644 --- a/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c +++ b/arch/arm/plat-s3c24xx/neo1973_pm_gsm.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include @@ -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); } -- cgit v1.2.3