From: Paul Cercueil Date: Mon, 22 Jun 2020 21:45:48 +0000 (+0200) Subject: pinctrl: ingenic: Properly detect GPIO direction when configured for IRQ X-Git-Tag: v5.15~3141^2~53 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=84e7a946da71f678affacea301f6d5cb4d9784e8;p=platform%2Fkernel%2Flinux-starfive.git pinctrl: ingenic: Properly detect GPIO direction when configured for IRQ The PAT1 register contains information about the IRQ type (edge/level) for input GPIOs with IRQ enabled, and the direction for non-IRQ GPIOs. So it makes sense to read it only if the GPIO has no interrupt configured, otherwise input GPIOs configured for level IRQs are misdetected as output GPIOs. Fixes: ebd6651418b6 ("pinctrl: ingenic: Implement .get_direction for GPIO chips") Reported-by: João Henrique Signed-off-by: Paul Cercueil Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200622214548.265417-2-paul@crapouillou.net Signed-off-by: Linus Walleij --- diff --git a/drivers/pinctrl/pinctrl-ingenic.c b/drivers/pinctrl/pinctrl-ingenic.c index 241e563..a8d1b53 100644 --- a/drivers/pinctrl/pinctrl-ingenic.c +++ b/drivers/pinctrl/pinctrl-ingenic.c @@ -1958,7 +1958,8 @@ static int ingenic_gpio_get_direction(struct gpio_chip *gc, unsigned int offset) unsigned int pin = gc->base + offset; if (jzpc->info->version >= ID_JZ4760) { - if (ingenic_get_pin_config(jzpc, pin, JZ4760_GPIO_PAT1)) + if (ingenic_get_pin_config(jzpc, pin, JZ4760_GPIO_INT) || + ingenic_get_pin_config(jzpc, pin, JZ4760_GPIO_PAT1)) return GPIO_LINE_DIRECTION_IN; return GPIO_LINE_DIRECTION_OUT; }