[PATCH 2/7] pinctrl: mediatek: paris: Fix PIN_CONFIG_BIAS_DISABLE readback
From: Chen-Yu Tsai <wenst@chromium.org>
Date: 2022-01-11 11:22:56
Also in:
linux-gpio, linux-mediatek, lkml
Subsystem:
pin control subsystem, pin controller - mediatek, the rest · Maintainers:
Linus Walleij, Sean Wang, Linus Torvalds
When reading back pin bias settings, if the pin is not in a
bias-disabled state, the function should return -EINVAL.
Fix this in the mediatek-paris pinctrl library so that the read back
state is not littered with bogus a "input bias disabled" combined with
"pull up" or "pull down" states.
Fixes: 805250982bb5 ("pinctrl: mediatek: add pinctrl-paris that implements the vendor dt-bindings")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
---
drivers/pinctrl/mediatek/pinctrl-paris.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pinctrl/mediatek/pinctrl-paris.c b/drivers/pinctrl/mediatek/pinctrl-paris.c
index f9f9110f2107..1ca598ea7ba7 100644
--- a/drivers/pinctrl/mediatek/pinctrl-paris.c
+++ b/drivers/pinctrl/mediatek/pinctrl-paris.c@@ -97,8 +97,8 @@ static int mtk_pinconf_get(struct pinctrl_dev *pctldev, if (err) goto out; if (param == PIN_CONFIG_BIAS_DISABLE) { - if (ret == MTK_PUPD_SET_R1R0_00) - ret = MTK_DISABLE; + if (ret != MTK_PUPD_SET_R1R0_00) + err = -EINVAL; } else if (param == PIN_CONFIG_BIAS_PULL_UP) { /* When desire to get pull-up value, return * error if current setting is pull-down
--
2.34.1.575.g55b058a8bb-goog
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel