diff options
| author | Hanks Chen <hanks.chen@mediatek.com> | 2020-07-23 19:19:53 +0800 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2020-08-04 01:29:09 +0200 |
| commit | edd546465002621665a3a275abe908a30efdce5b (patch) | |
| tree | df9c402f5e01442998b4a720be5927c0a8ebfd47 /drivers/pinctrl/mediatek/pinctrl-paris.c | |
| parent | b07b616214857c9db01e2807cde2f6bba8019fc3 (diff) | |
pinctrl: mediatek: avoid virtual gpio trying to set reg
for virtual gpios, they should not do reg setting and
should behave as expected for eint function.
Signed-off-by: Mars Cheng <mars.cheng@mediatek.com>
Signed-off-by: Hanks Chen <hanks.chen@mediatek.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Link: https://lore.kernel.org/r/1595503197-15246-4-git-send-email-hanks.chen@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/mediatek/pinctrl-paris.c')
| -rw-r--r-- | drivers/pinctrl/mediatek/pinctrl-paris.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/pinctrl/mediatek/pinctrl-paris.c b/drivers/pinctrl/mediatek/pinctrl-paris.c index 90a432bf9fed..a23c18251965 100644 --- a/drivers/pinctrl/mediatek/pinctrl-paris.c +++ b/drivers/pinctrl/mediatek/pinctrl-paris.c @@ -769,6 +769,13 @@ static int mtk_gpio_get_direction(struct gpio_chip *chip, unsigned int gpio) if (gpio >= hw->soc->npins) return -EINVAL; + /* + * "Virtual" GPIOs are always and only used for interrupts + * Since they are only used for interrupts, they are always inputs + */ + if (mtk_is_virt_gpio(hw, gpio)) + return 1; + desc = (const struct mtk_pin_desc *)&hw->soc->pins[gpio]; err = mtk_hw_get_value(hw, desc, PINCTRL_PIN_REG_DIR, &value); |