@@ -96,20 +96,16 @@ static int mtk_pinconf_get(struct pinctrl_dev *pctldev,
err = hw->soc->bias_get_combo(hw, desc, &pullup, &ret);
if (err)
goto out;
+ if (ret == MTK_PUPD_SET_R1R0_00)
+ ret = MTK_DISABLE;
if (param == PIN_CONFIG_BIAS_DISABLE) {
- if (ret == MTK_PUPD_SET_R1R0_00)
- ret = MTK_DISABLE;
+ if (ret != MTK_DISABLE)
+ 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
- */
- if (!pullup)
+ if (!pullup || ret == MTK_DISABLE)
err = -EINVAL;
} else if (param == PIN_CONFIG_BIAS_PULL_DOWN) {
- /* When desire to get pull-down value, return
- * error if current setting is pull-up
- */
- if (pullup)
+ if (pullup || ret == MTK_DISABLE)
err = -EINVAL;
}
} else {
When reading back pin bias settings, if the pin is not in the corresponding bias 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 | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-)