pinctrl: mediatek: Fix fallback call path

Some SoCs, eg. mt8183, are using a pinconfig operation bias_set_combo.
The fallback path in mtk_pinconf_adv_pull_set() should also try this
operation.

Fixes: cafe19db7751 ("pinctrl: mediatek: Backward compatible to previous Mediatek's bias-pull usage")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Acked-by: Sean Wang <sean.wang@kernel.org>
Link: https://lore.kernel.org/r/20201228090425.2130569-1-hsinyi@chromium.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
index 7aeb552..72f17f2 100644 (file)
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
@@ -920,6 +920,10 @@ int mtk_pinconf_adv_pull_set(struct mtk_pinctrl *hw,
                        err = hw->soc->bias_set(hw, desc, pullup);
                        if (err)
                                return err;
+               } else if (hw->soc->bias_set_combo) {
+                       err = hw->soc->bias_set_combo(hw, desc, pullup, arg);
+                       if (err)
+                               return err;
                } else {
                        return -ENOTSUPP;
                }