diff options
Diffstat (limited to 'recipes/linux/linux/acern30/s3c2410-nand-pm.patch')
| -rw-r--r-- | recipes/linux/linux/acern30/s3c2410-nand-pm.patch | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/recipes/linux/linux/acern30/s3c2410-nand-pm.patch b/recipes/linux/linux/acern30/s3c2410-nand-pm.patch new file mode 100644 index 0000000000..b53a2f2760 --- /dev/null +++ b/recipes/linux/linux/acern30/s3c2410-nand-pm.patch @@ -0,0 +1,53 @@ +Index: linux-2.6.14/drivers/mtd/nand/s3c2410.c +=================================================================== +--- linux-2.6.14.orig/drivers/mtd/nand/s3c2410.c ++++ linux-2.6.14/drivers/mtd/nand/s3c2410.c +@@ -692,11 +692,39 @@ static int s3c2440_nand_probe(struct dev + return s3c24xx_nand_probe(dev, 1); + } + ++#ifdef CONFIG_PM ++ ++static int s3c2410_nand_suspend(struct device *dev, pm_message_t state) ++{ ++ struct s3c2410_nand_info *info = to_nand_info(dev); ++ ++ clk_disable(info->clk); ++ ++ return 0; ++} ++ ++static int s3c2410_nand_resume(struct device *dev) ++{ ++ struct s3c2410_nand_info *info = to_nand_info(dev); ++ ++ clk_enable(info->clk); ++ msleep(1); ++ ++ return s3c2410_nand_inithw(info, dev); ++} ++ ++#else ++#define s3c2410_nand_suspend NULL ++#define s3c2410_nand_resume NULL ++#endif ++ + static struct device_driver s3c2410_nand_driver = { + .name = "s3c2410-nand", + .bus = &platform_bus_type, + .probe = s3c2410_nand_probe, + .remove = s3c2410_nand_remove, ++ .suspend = s3c2410_nand_suspend, ++ .resume = s3c2410_nand_resume, + }; + + static struct device_driver s3c2440_nand_driver = { +@@ -704,6 +732,8 @@ static struct device_driver s3c2440_nand + .bus = &platform_bus_type, + .probe = s3c2440_nand_probe, + .remove = s3c2410_nand_remove, ++ .suspend = s3c2410_nand_suspend, ++ .resume = s3c2410_nand_resume, + }; + + static int __init s3c2410_nand_init(void) |