4.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Huang-Huang Bao <i@xxxxxx>
[ Upstream commit 4ea4d4808e342ddf89ba24b93ffa2057005aaced ]
rockchip_pmx_set reset all pinmuxs in group to 0 in the case of error,
add missing bank data retrieval in that code to avoid setting mux on
unexpected pins.
Fixes: 14797189b35e ("pinctrl: rockchip: add return value to rockchip_set_mux")
Reviewed-by: Heiko Stuebner <heiko@xxxxxxxxx>
Signed-off-by: Huang-Huang Bao <i@xxxxxx>
Link: https://lore.kernel.org/r/20240606125755.53778-5-i@xxxxxx
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/pinctrl/pinctrl-rockchip.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 849bd2f9dfd27..0dfb00919b9ba 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -2203,8 +2203,10 @@ static int rockchip_pmx_set(struct pinctrl_dev *pctldev, unsigned selector,
if (ret) {
/* revert the already done pin settings */
- for (cnt--; cnt >= 0; cnt--)
+ for (cnt--; cnt >= 0; cnt--) {
+ bank = pin_to_bank(info, pins[cnt]);
rockchip_set_mux(bank, pins[cnt] - bank->pin_base, 0);
+ }
return ret;
}
--
2.43.0
