From 60a3437dc9a61c7f4b199c2bac3dcc7b611b1178 Mon Sep 17 00:00:00 2001 From: Tarun Kanti DebBarma Date: Thu, 29 Sep 2011 04:47:25 +0530 Subject: gpio/omap: handle save/restore context in GPIO driver Modify omap_gpio_prepare_for_idle() & omap_gpio_resume_after_idle() functions to handle save context & restore context respectively in the OMAP GPIO driver itself instead of calling these functions from pm specific files. For this, in gpio_prepare_for_idle(), call *_get_context_loss_count() and in gpio_resume_after_idle() call it again. If the count is different, do restore context. Signed-off-by: Charulatha V Signed-off-by: Tarun Kanti DebBarma Reviewed-by: Santosh Shilimkar Acked-by: Tony Lindgren Reviewed-by: Kevin Hilman Signed-off-by: Kevin Hilman --- arch/arm/plat-omap/include/plat/gpio.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'arch/arm/plat-omap/include/plat/gpio.h') diff --git a/arch/arm/plat-omap/include/plat/gpio.h b/arch/arm/plat-omap/include/plat/gpio.h index 6eb035c0cc16..c1ddc5a3de2a 100644 --- a/arch/arm/plat-omap/include/plat/gpio.h +++ b/arch/arm/plat-omap/include/plat/gpio.h @@ -201,14 +201,15 @@ struct omap_gpio_platform_data { bool loses_context; /* whether the bank would ever lose context */ struct omap_gpio_reg_offs *regs; + + /* Return context loss count due to PM states changing */ + int (*get_context_loss_count)(struct device *dev); }; extern void omap2_gpio_prepare_for_idle(int off_mode); extern void omap2_gpio_resume_after_idle(void); extern void omap_set_gpio_debounce(int gpio, int enable); extern void omap_set_gpio_debounce_time(int gpio, int enable); -extern void omap_gpio_save_context(void); -extern void omap_gpio_restore_context(void); /*-------------------------------------------------------------------------*/ /* Wrappers for "new style" GPIO calls, using the new infrastructure -- cgit v1.2.3