pinctrl: meson: fix pinconf bias disable

[ Upstream commit e39f9dd8206ad66992ac0e6218ef1ba746f2cce9 ]

If a bias is enabled on a pin of an Amlogic SoC, calling .pin_config_set()
with PIN_CONFIG_BIAS_DISABLE will not disable the bias. Instead it will
force a pull-down bias on the pin.

Instead of the pull type register bank, the driver should access the pull
enable register bank.

Fixes: 6ac730951104 ("pinctrl: add driver for Amlogic Meson SoCs")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/pinctrl/meson/pinctrl-meson.c b/drivers/pinctrl/meson/pinctrl-meson.c
index 66ed70c..6c43322 100644 (file)
--- a/drivers/pinctrl/meson/pinctrl-meson.c
+++ b/drivers/pinctrl/meson/pinctrl-meson.c
@@ -273,7 +273,7 @@ static int meson_pinconf_set(struct pinctrl_dev *pcdev, unsigned int pin,
                        dev_dbg(pc->dev, "pin %u: disable bias\n", pin);
 
                        meson_calc_reg_and_bit(bank, pin, REG_PULL, &reg, &bit);
-                       ret = regmap_update_bits(pc->reg_pull, reg,
+                       ret = regmap_update_bits(pc->reg_pullen, reg,
                                                 BIT(bit), 0);
                        if (ret)
                                return ret;