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Message-Id: <20201228090425.2130569-1-hsinyi@chromium.org>
Date:   Mon, 28 Dec 2020 17:04:25 +0800
From:   Hsin-Yi Wang <hsinyi@...omium.org>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     Sean Wang <sean.wang@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Light Hsieh <light.hsieh@...iatek.com>,
        linux-mediatek@...ts.infradead.org, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>
Subject: [PATCH] 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@...omium.org>
---
 drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
index 7aeb552d16ce9..72f17f26acd80 100644
--- 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;
 		}
-- 
2.29.2.729.g45daf8777d-goog

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