pinctrl: mediatek: mt7622: align error handling of mtk_hw_get_value call

Make consistent error handling of all mtk_hw_get_value occurrences using
propagating error code from the internal instead of creating a new one.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/mediatek/pinctrl-mt7622.c b/drivers/pinctrl/mediatek/pinctrl-mt7622.c
index dc32e3c..06e8406 100644 (file)
--- a/drivers/pinctrl/mediatek/pinctrl-mt7622.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mt7622.c
@@ -1160,7 +1160,7 @@ static int mtk_pinconf_get(struct pinctrl_dev *pctldev,
        case PIN_CONFIG_OUTPUT_ENABLE:
                err = mtk_hw_get_value(hw, pin, PINCTRL_PIN_REG_DIR, &val);
                if (err)
-                       return -EINVAL;
+                       return err;
 
                /* HW takes input mode as zero; output mode as non-zero */
                if ((val && param == PIN_CONFIG_INPUT_ENABLE) ||
@@ -1184,11 +1184,11 @@ static int mtk_pinconf_get(struct pinctrl_dev *pctldev,
        case PIN_CONFIG_DRIVE_STRENGTH:
                err = mtk_hw_get_value(hw, pin, PINCTRL_PIN_REG_E4, &val);
                if (err)
-                       return -EINVAL;
+                       return err;
 
                err = mtk_hw_get_value(hw, pin, PINCTRL_PIN_REG_E8, &val2);
                if (err)
-                       return -EINVAL;
+                       return err;
 
                /* 4mA when (e8, e4) = (0, 0); 8mA when (e8, e4) = (0, 1)
                 * 12mA when (e8, e4) = (1, 0); 16mA when (e8, e4) = (1, 1)
@@ -1203,7 +1203,7 @@ static int mtk_pinconf_get(struct pinctrl_dev *pctldev,
 
                err = mtk_hw_get_value(hw, pin, reg, &val);
                if (err)
-                       return -EINVAL;
+                       return err;
 
                ret = val;