Commit 9978c2f1 authored by Erwan Le Ray's avatar Erwan Le Ray Committed by Greg Kroah-Hartman
Browse files

serial: mctrl_gpio: add a new API to enable / disable wake_irq 



Add a new API to enable / disable wake_irq in order to enable gpio irqs as
wakeup irqs for the uart port.

Signed-off-by: default avatarErwan Le Ray <erwan.leray@foss.st.com>
Link: https://lore.kernel.org/r/20220203171644.12231-2-erwan.leray@foss.st.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 186ab099

drivers/tty/serial/serial_mctrl_gpio.c

+38 −0
Original line number Diff line number Diff line
@@ -299,4 +299,42 @@ void mctrl_gpio_disable_ms(struct mctrl_gpios *gpios) 
}

EXPORT_SYMBOL_GPL(mctrl_gpio_disable_ms);



void mctrl_gpio_enable_irq_wake(struct mctrl_gpios *gpios)

{

	enum mctrl_gpio_idx i;



	if (!gpios)

		return;



	if (!gpios->mctrl_on)

		return;



	for (i = 0; i < UART_GPIO_MAX; ++i) {

		if (!gpios->irq[i])

			continue;



		enable_irq_wake(gpios->irq[i]);

	}

}

EXPORT_SYMBOL_GPL(mctrl_gpio_enable_irq_wake);



void mctrl_gpio_disable_irq_wake(struct mctrl_gpios *gpios)

{

	enum mctrl_gpio_idx i;



	if (!gpios)

		return;



	if (!gpios->mctrl_on)

		return;



	for (i = 0; i < UART_GPIO_MAX; ++i) {

		if (!gpios->irq[i])

			continue;



		disable_irq_wake(gpios->irq[i]);

	}

}

EXPORT_SYMBOL_GPL(mctrl_gpio_disable_irq_wake);



MODULE_LICENSE("GPL");

drivers/tty/serial/serial_mctrl_gpio.h

+18 −0
Original line number Diff line number Diff line
@@ -91,6 +91,16 @@ void mctrl_gpio_enable_ms(struct mctrl_gpios *gpios); 
 */

void mctrl_gpio_disable_ms(struct mctrl_gpios *gpios);



/*

 * Enable gpio wakeup interrupts to enable wake up source.

 */

void mctrl_gpio_enable_irq_wake(struct mctrl_gpios *gpios);



/*

 * Disable gpio wakeup interrupts to enable wake up source.

 */

void mctrl_gpio_disable_irq_wake(struct mctrl_gpios *gpios);



#else /* GPIOLIB */



static inline
@@ -142,6 +152,14 @@ static inline void mctrl_gpio_disable_ms(struct mctrl_gpios *gpios) 
{

}



static inline void mctrl_gpio_enable_irq_wake(struct mctrl_gpios *gpios)

{

}



static inline void mctrl_gpio_disable_irq_wake(struct mctrl_gpios *gpios)

{

}



#endif /* GPIOLIB */



#endif