From e3829d15460feb884805012c72ec4a17402822eb Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 31 Jul 2017 15:21:07 +0900 Subject: pinctrl: uniphier: fix pin_config_get() for input-enable For LD11/LD20 SoCs (capable of per-pin input enable), iectrl bits are located across multiple registers. So, the register offset must be taken into account. Otherwise, wrong input-enable status is displayed. While we here, rename the macro because it is a base address. Fixes: aa543888ca8c ("pinctrl: uniphier: support per-pin input enable for new SoCs") Signed-off-by: Masahiro Yamada Signed-off-by: Linus Walleij --- drivers/pinctrl/uniphier/pinctrl-uniphier-core.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c index c649e83..f2f0f9d 100644 --- a/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c +++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c @@ -32,7 +32,7 @@ #define UNIPHIER_PINCTRL_DRV2CTRL_BASE 0x1900 #define UNIPHIER_PINCTRL_DRV3CTRL_BASE 0x1980 #define UNIPHIER_PINCTRL_PUPDCTRL_BASE 0x1a00 -#define UNIPHIER_PINCTRL_IECTRL 0x1d00 +#define UNIPHIER_PINCTRL_IECTRL_BASE 0x1d00 struct uniphier_pinctrl_priv { struct pinctrl_desc pctldesc; @@ -252,18 +252,21 @@ static int uniphier_conf_pin_input_enable_get(struct pinctrl_dev *pctldev, { struct uniphier_pinctrl_priv *priv = pinctrl_dev_get_drvdata(pctldev); unsigned int iectrl = uniphier_pin_get_iectrl(desc->drv_data); - unsigned int val; + unsigned int reg, mask, val; int ret; if (iectrl == UNIPHIER_PIN_IECTRL_NONE) /* This pin is always input-enabled. */ return 0; - ret = regmap_read(priv->regmap, UNIPHIER_PINCTRL_IECTRL, &val); + reg = UNIPHIER_PINCTRL_IECTRL_BASE + iectrl / 32 * 4; + mask = BIT(iectrl % 32); + + ret = regmap_read(priv->regmap, reg, &val); if (ret) return ret; - return val & BIT(iectrl) ? 0 : -EINVAL; + return val & mask ? 0 : -EINVAL; } static int uniphier_conf_pin_config_get(struct pinctrl_dev *pctldev, @@ -456,7 +459,7 @@ static int uniphier_conf_pin_input_enable(struct pinctrl_dev *pctldev, if (iectrl == UNIPHIER_PIN_IECTRL_NONE) return enable ? 0 : -EINVAL; - reg = UNIPHIER_PINCTRL_IECTRL + iectrl / 32 * 4; + reg = UNIPHIER_PINCTRL_IECTRL_BASE + iectrl / 32 * 4; mask = BIT(iectrl % 32); return regmap_update_bits(priv->regmap, reg, mask, enable ? mask : 0); -- cgit v1.1