pintcrl: mtk: support bias-disable of generic and special pins simultaneously

For generic pins, parameter "arg" is 0 or 1.
For special pins, bias-disable is set by R0R1,
so we need transmited "00" to set bias-disable
When we set "bias-disable" as high-z property,
the parameter should be "MTK_PUPD_SET_R1R0_00".

Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Reviewed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index e161561..c3975a0 100644 (file)
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -293,7 +293,7 @@ static int mtk_pconf_set_pull_select(struct mtk_pinctrl *pctl,
                unsigned int pin, bool enable, bool isup, unsigned int arg)
 {
        unsigned int bit;
-       unsigned int reg_pullen, reg_pullsel;
+       unsigned int reg_pullen, reg_pullsel, r1r0;
        int ret;
 
        /* Some pins' pull setting are very different,
@@ -301,8 +301,12 @@ static int mtk_pconf_set_pull_select(struct mtk_pinctrl *pctl,
         * resistor bit, so we need this special handle.
         */
        if (pctl->devdata->spec_pull_set) {
+               /* For special pins, bias-disable is set by R1R0,
+                * the parameter should be "MTK_PUPD_SET_R1R0_00".
+                */
+               r1r0 = enable ? arg : MTK_PUPD_SET_R1R0_00;
                ret = pctl->devdata->spec_pull_set(mtk_get_regmap(pctl, pin),
-                       pin, pctl->devdata->port_align, isup, arg);
+                       pin, pctl->devdata->port_align, isup, r1r0);
                if (!ret)
                        return 0;
        }