diff mbox series

pinctrl: mediatek: check mtk_is_virt_gpio input parameter

Message ID 1597317260-24348-1-git-send-email-hanks.chen@mediatek.com
State Accepted
Commit 39c4dbe4cc363accd676162c24b264f44c581490
Headers show
Series pinctrl: mediatek: check mtk_is_virt_gpio input parameter | expand

Commit Message

Hanks Chen Aug. 13, 2020, 11:14 a.m. UTC
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: edd546465002 ("pinctrl: mediatek: avoid virtual gpio trying to set reg")
Singed-off-by: sin_jieyang <sin_jieyang@mediatek.com>
Signed-off-by: Hanks Chen <hanks.chen@mediatek.com>

---
 drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c | 4 ++++
 1 file changed, 4 insertions(+)

-- 
2.18.0
diff mbox series

Patch

diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
index c53e2c391e32..27ab9c512ae1 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
@@ -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 == EINT_NA)
+		return virt_gpio;
+
 	if (desc->funcs && !desc->funcs[desc->eint.eint_m].name)
 		virt_gpio = true;