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pinctrl: mediatek: check mtk_is_virt_gpio input parameter

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check mtk_is_virt_gpio input parameter,
virtual gpio need to support eint mode.

add error handler for the ko case
to fix this boot fail:
pc : mtk_is_virt_gpio+0x20/0x38 [pinctrl_mtk_common_v2]
lr : mtk_gpio_get_direction+0x44/0xb0 [pinctrl_paris]

Fixes: edd5464650 ("pinctrl: mediatek: avoid virtual gpio trying to set reg")
Signed-off-by: Hanks Chen <hanks.chen@mediatek.com>
Acked-by: Sean Wang <sean.wang@kernel.org>
Singed-off-by: Jie Yang <sin_jieyang@mediatek.com>
Link: https://lore.kernel.org/r/1597922546-29633-1-git-send-email-hanks.chen@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Hanks Chen 2020-08-20 19:22:25 +08:00 committed by Linus Walleij
parent 5d8ff95a52
commit 39c4dbe4cc
1 changed files with 4 additions and 0 deletions
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4
drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
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@ -259,6 +259,10 @@ bool mtk_is_virt_gpio(struct mtk_pinctrl *hw, unsigned int gpio_n)
desc = (const struct mtk_pin_desc *)&hw->soc->pins[gpio_n];
/* if the GPIO is not supported for eint mode */
if (desc->eint.eint_m == NO_EINT_SUPPORT)
return virt_gpio;
if (desc->funcs && !desc->funcs[desc->eint.eint_m].name)
virt_gpio = true;