From 8e88a0feebb241cab0253698b2f7358b6ebec802 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Mon, 16 Jan 2023 10:49:57 +0100 Subject: [PATCH] gpio: mxc: Always set GPIOs used as interrupt source to INPUT mode Always configure GPIO pins which are used as interrupt source as INPUTs. In case the default pin configuration is OUTPUT, or the prior stage does configure the pins as OUTPUT, then Linux will not reconfigure the pin as INPUT and no interrupts are received. Always configure the interrupt source GPIO pin as input to fix the above case. Reviewed-by: Linus Walleij Fixes: 07bd1a6cc7cbb ("MXC arch: Add gpio support for the whole platform") Signed-off-by: Marek Vasut Signed-off-by: Bartosz Golaszewski --- drivers/gpio/gpio-mxc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c index 2d9d498..6f673b2 100644 --- a/drivers/gpio/gpio-mxc.c +++ b/drivers/gpio/gpio-mxc.c @@ -223,7 +223,7 @@ static int gpio_set_irq_type(struct irq_data *d, u32 type) raw_spin_unlock_irqrestore(&port->gc.bgpio_lock, flags); - return 0; + return port->gc.direction_input(&port->gc, gpio_idx); } static void mxc_flip_edge(struct mxc_gpio_port *port, u32 gpio) -- 2.7.4