diff options
| author | Hsin-Yi Wang <hsinyi@chromium.org> | 2021-07-01 11:09:55 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-05-17 12:43:55 +0300 |
| commit | 1c86f75da04ceb333dc0e5e7ea28d93611a463d9 (patch) | |
| tree | 4e551769cd1ed0bdcecbbc6c020b7d702be9f8a8 | |
| parent | 3bbbcafb0d22468e6757bfcb0fd0e3cc404eeabb (diff) | |
| download | linux-1c86f75da04ceb333dc0e5e7ea28d93611a463d9.tar.xz | |
pinctrl: mediatek: Fix fallback behavior for bias_set_combo
commit 798a315fc359aa6dbe48e09d802aa59b7e158ffc upstream.
Some pin doesn't support PUPD register, if it fails and fallbacks with
bias_set_combo case, it will call mtk_pinconf_bias_set_pupd_r1_r0() to
modify the PUPD pin again.
Since the general bias set are either PU/PD or PULLSEL/PULLEN, try
bias_set or bias_set_rev1 for the other fallback case. If the pin
doesn't support neither PU/PD nor PULLSEL/PULLEN, it will return
-ENOTSUPP.
Fixes: 81bd1579b43e ("pinctrl: mediatek: Fix fallback call path")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Link: https://lore.kernel.org/r/20210701080955.2660294-1-hsinyi@chromium.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c index 5ef372e70270..e5335c21480b 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c @@ -877,12 +877,10 @@ 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; + err = mtk_pinconf_bias_set_rev1(hw, desc, pullup); + if (err) + err = mtk_pinconf_bias_set(hw, desc, pullup); } } |