From: Nishanth Menon <n...@ti.com>
GPIO debounce registers need to be saved and restored for proper functioning
of driver.
Signed-off-by: Nishanth Menon <n...@ti.com>
tarun.ka...@ti.com: Debounce context save is moved to _set_gpio_debounce()
as part of dynamic context save to remove overhead.
Signed-off-by: Tarun Kanti DebBarma <tarun.ka...@ti.com>
Reviewed-by: Santosh Shilimkar <santosh.shilim...@ti.com>
---
drivers/gpio/gpio-omap.c | 12 ++++++++++++
1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index 4056d78..560567d 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -44,6 +44,8 @@ struct gpio_regs {
u32 risingdetect;
u32 fallingdetect;
u32 dataout;
+ u32 debounce;
+ u32 debounce_en;
};
struct gpio_bank {
@@ -229,6 +231,10 @@ static void _set_gpio_debounce(struct gpio_bank *bank,
unsigned gpio,
* that point. Therefore we have to enable dbck here.
*/
_gpio_dbck_enable(bank);
+ if (bank->dbck_enable_mask) {
+ bank->context.debounce = debounce;
+ bank->context.debounce_en = val;
+ }
}
static inline void set_gpio_trigger(struct gpio_bank *bank, int gpio,
@@ -1359,6 +1365,12 @@ static void omap_gpio_restore_context(struct gpio_bank
*bank)
__raw_writel(bank->context.fallingdetect,
bank->base + bank->regs->fallingdetect);
__raw_writel(bank->context.dataout, bank->base + bank->regs->dataout);
+ if (bank->dbck_enable_mask) {
+ __raw_writel(bank->context.debounce, bank->base +
+ bank->regs->debounce);
+ __raw_writel(bank->context.debounce_en,
+ bank->base + bank->regs->debounce_en);
+ }
}
#else
#define omap_gpio_suspend NULL
--
1.7.0.4
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
