pinctrl: rockchip: fix pinmux reset in rockchip_pmx_set

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@sntech.de>
Signed-off-by: Huang-Huang Bao <i@eh5.me>
Link: https://lore.kernel.org/r/20240606125755.53778-5-i@eh5.me
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 24ee88863ce399b3c1e1997c6b40c741eb4860fd..3f56991f5b89203b0f74eb5ef13a031027faebd0 100644 (file)
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -2751,8 +2751,10 @@ 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;
        }