Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ae547354 authored by Nishanth Menon's avatar Nishanth Menon Committed by Tarun Kanti DebBarma
Browse files

gpio/omap: save and restore debounce registers 



GPIO debounce registers need to be saved and restored for proper functioning
of driver.

Signed-off-by: default avatarNishanth Menon <nm@ti.com>
tarun.kanti@ti.com: Debounce context save is moved to _set_gpio_debounce()
as part of dynamic context save to remove overhead.
Signed-off-by: default avatarTarun Kanti DebBarma <tarun.kanti@ti.com>
Reviewed-by: default avatarSantosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: default avatarKevin Hilman <khilman@ti.com>
Signed-off-by: default avatarKevin Hilman <khilman@ti.com>
parent 41d87cbd

drivers/gpio/gpio-omap.c

+12 −0
Original line number Diff line number Diff line
@@ -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,
@@ -1363,6 +1369,12 @@ 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);

	}

}

#endif /* CONFIG_PM_RUNTIME */

#else