From e3829d15460feb884805012c72ec4a17402822eb Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Mon, 31 Jul 2017 15:21:07 +0900
Subject: [PATCH] pinctrl: uniphier: fix pin_config_get() for input-enable
Git-commit: e3829d15460feb884805012c72ec4a17402822eb
Patch-mainline: v4.14-rc1
References: bsc#1051510
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 <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/pinctrl/uniphier/pinctrl-uniphier-core.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c
index c649e835bd54..f2f0f9dcfec3 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);
--
2.18.0