pinctrl: uniphier: clean up GPIO port muxing

There are a bunch of GPIO muxing data, but most of them are actually
unneeded because GPIO-to-pin mapping can be specified by "gpio-ranges"
DT properties.

Tables that contain a set of GPIO pins are still needed for the named
mapping by "gpio-ranges-group-names".  This is a much cleaner way for
UniPhier SoC family where GPIO numbers are not straight mapped to pin
numbers.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/uniphier/pinctrl-uniphier-core.c

@@ -651,30 +651,27 @@ static int uniphier_pmx_gpio_request_enable(struct pinctrl_dev *pctldev,
 					    unsigned offset)
 {
 	struct uniphier_pinctrl_priv *priv = pinctrl_dev_get_drvdata(pctldev);
-	const struct uniphier_pinctrl_group *groups = priv->socdata->groups;
-	int groups_count = priv->socdata->groups_count;
-	enum uniphier_pinmux_gpio_range_type range_type;
-	int i, j;
-
-	if (strstr(range->name, "irq"))
-		range_type = UNIPHIER_PINMUX_GPIO_RANGE_IRQ;
-	else
-		range_type = UNIPHIER_PINMUX_GPIO_RANGE_PORT;
-
-	for (i = 0; i < groups_count; i++) {
-		if (groups[i].range_type != range_type)
-			continue;
-
-		for (j = 0; j < groups[i].num_pins; j++)
-			if (groups[i].pins[j] == offset)
-				goto found;
-	}
+	unsigned int gpio_offset;
+	int muxval, i;
+
+	if (range->pins) {
+		for (i = 0; i < range->npins; i++)
+			if (range->pins[i] == offset)
+				break;
 
-	dev_err(pctldev->dev, "pin %u does not support GPIO\n", offset);
+		if (WARN_ON(i == range->npins))
 			return -EINVAL;
 
-found:
-	return uniphier_pmx_set_one_mux(pctldev, offset, groups[i].muxvals[j]);
+		gpio_offset = i;
+	} else {
+		gpio_offset = offset - range->pin_base;
+	}
+
+	gpio_offset += range->id;
+
+	muxval = priv->socdata->get_gpio_muxval(offset, gpio_offset);
+
+	return uniphier_pmx_set_one_mux(pctldev, offset, muxval);
 }
 
 static const struct pinmux_ops uniphier_pmxops = {

drivers/pinctrl/uniphier/pinctrl-uniphier.h

@@ -131,18 +131,11 @@ static inline unsigned int uniphier_pin_get_pull_dir(void *drv_data)
 						UNIPHIER_PIN_PULL_DIR_MASK;
 }
 
-enum uniphier_pinmux_gpio_range_type {
-	UNIPHIER_PINMUX_GPIO_RANGE_PORT,
-	UNIPHIER_PINMUX_GPIO_RANGE_IRQ,
-	UNIPHIER_PINMUX_GPIO_RANGE_NONE,
-};
-
 struct uniphier_pinctrl_group {
 	const char *name;
 	const unsigned *pins;
 	unsigned num_pins;
 	const int *muxvals;
-	enum uniphier_pinmux_gpio_range_type range_type;
 };
 
 struct uniphier_pinmux_function {
@@ -158,6 +151,7 @@ struct uniphier_pinctrl_socdata {
 	int groups_count;
 	const struct uniphier_pinmux_function *functions;
 	int functions_count;
+	int (*get_gpio_muxval)(unsigned int pin, unsigned int gpio_offset);
 	unsigned int caps;
 #define UNIPHIER_PINCTRL_CAPS_PERPIN_IECTRL	BIT(1)
 #define UNIPHIER_PINCTRL_CAPS_DBGMUX_SEPARATE	BIT(0)
@@ -170,33 +164,22 @@ struct uniphier_pinctrl_socdata {
 	.drv_data = (void *)UNIPHIER_PIN_ATTR_PACKED(c, d, e, f, g),	\
 }
 
-#define __UNIPHIER_PINCTRL_GROUP(grp, type)				\
+#define __UNIPHIER_PINCTRL_GROUP(grp, mux)				\
 	{								\
 		.name = #grp,						\
 		.pins = grp##_pins,					\
 		.num_pins = ARRAY_SIZE(grp##_pins),			\
-		.muxvals = grp##_muxvals +				\
-			BUILD_BUG_ON_ZERO(ARRAY_SIZE(grp##_pins) !=	\
-					  ARRAY_SIZE(grp##_muxvals)),	\
-		.range_type = type,					\
+		.muxvals = mux,						\
 	}
 
 #define UNIPHIER_PINCTRL_GROUP(grp)					\
-	__UNIPHIER_PINCTRL_GROUP(grp, UNIPHIER_PINMUX_GPIO_RANGE_NONE)
-
-#define UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_PORT(grp)			\
-	__UNIPHIER_PINCTRL_GROUP(grp, UNIPHIER_PINMUX_GPIO_RANGE_PORT)
-
-#define UNIPHIER_PINCTRL_GROUP_GPIO_RANGE_IRQ(grp)			\
-	__UNIPHIER_PINCTRL_GROUP(grp, UNIPHIER_PINMUX_GPIO_RANGE_IRQ)
+	__UNIPHIER_PINCTRL_GROUP(grp,					\
+			grp##_muxvals +					\
+			BUILD_BUG_ON_ZERO(ARRAY_SIZE(grp##_pins) !=	\
+					  ARRAY_SIZE(grp##_muxvals)))
 
-#define UNIPHIER_PINCTRL_GROUP_SINGLE(grp, array, ofst)			\
-	{								\
-		.name = #grp,						\
-		.pins = array##_pins + ofst,				\
-		.num_pins = 1,						\
-		.muxvals = array##_muxvals + ofst,			\
-	}
+#define UNIPHIER_PINCTRL_GROUP_GPIO(grp)				\
+	__UNIPHIER_PINCTRL_GROUP(grp, NULL)
 
 #define UNIPHIER_PINMUX_FUNCTION(func)					\
 	{								\