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From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
To: Geert Uytterhoeven <geert+renesas@glider.be>,
	Rob Herring <robh+dt@kernel.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Magnus Damm <magnus.damm@gmail.com>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-renesas-soc@vger.kernel.org, linux-clk@vger.kernel.org,
	linux-gpio@vger.kernel.org,
	Prabhakar <prabhakar.csengg@gmail.com>,
	Biju Das <biju.das.jz@bp.renesas.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Subject: [PATCH v2 2/5] pinctrl: renesas: Add RZ/G2L pin and gpio controller driver
Date: Mon, 12 Jul 2021 20:44:19 +0100	[thread overview]
Message-ID: <20210712194422.12405-3-prabhakar.mahadev-lad.rj@bp.renesas.com> (raw)
In-Reply-To: <20210712194422.12405-1-prabhakar.mahadev-lad.rj@bp.renesas.com>

Add support for pin and gpio controller driver for RZ/G2L SoC.

Based on a patch in the BSP by Hien Huynh <hien.huynh.px@renesas.com>.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
---
 drivers/pinctrl/renesas/Kconfig         |   11 +
 drivers/pinctrl/renesas/Makefile        |    1 +
 drivers/pinctrl/renesas/pinctrl-rzg2l.c | 1196 +++++++++++++++++++++++
 3 files changed, 1208 insertions(+)
 create mode 100644 drivers/pinctrl/renesas/pinctrl-rzg2l.c

diff --git a/drivers/pinctrl/renesas/Kconfig b/drivers/pinctrl/renesas/Kconfig
index 4b84a744ae87..16ce795460f2 100644
--- a/drivers/pinctrl/renesas/Kconfig
+++ b/drivers/pinctrl/renesas/Kconfig
@@ -176,6 +176,17 @@ config PINCTRL_RZA2
 	help
 	  This selects GPIO and pinctrl driver for Renesas RZ/A2 platforms.
 
+config PINCTRL_RZG2L
+	bool "pin control support for RZ/G2L"
+	depends on OF
+	depends on ARCH_R9A07G044 || COMPILE_TEST
+	select GPIOLIB
+	select GENERIC_PINCTRL_GROUPS
+	select GENERIC_PINMUX_FUNCTIONS
+	select GENERIC_PINCONF
+	help
+	  This selects GPIO and pinctrl driver for Renesas RZ/G2L platforms.
+
 config PINCTRL_PFC_R8A77470
 	bool "pin control support for RZ/G1C" if COMPILE_TEST
 	select PINCTRL_SH_PFC
diff --git a/drivers/pinctrl/renesas/Makefile b/drivers/pinctrl/renesas/Makefile
index 353563228dc2..7d9238a9ef57 100644
--- a/drivers/pinctrl/renesas/Makefile
+++ b/drivers/pinctrl/renesas/Makefile
@@ -46,6 +46,7 @@ obj-$(CONFIG_PINCTRL_PFC_SHX3)		+= pfc-shx3.o
 
 obj-$(CONFIG_PINCTRL_RZA1)	+= pinctrl-rza1.o
 obj-$(CONFIG_PINCTRL_RZA2)	+= pinctrl-rza2.o
+obj-$(CONFIG_PINCTRL_RZG2L)	+= pinctrl-rzg2l.o
 obj-$(CONFIG_PINCTRL_RZN1)	+= pinctrl-rzn1.o
 
 ifeq ($(CONFIG_COMPILE_TEST),y)
diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
new file mode 100644
index 000000000000..3e786f15d009
--- /dev/null
+++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
@@ -0,0 +1,1196 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Renesas RZ/G2L Pin Control and GPIO driver core
+ *
+ * Copyright (C) 2021 Renesas Electronics Corporation.
+ */
+
+#include <linux/bitops.h>
+#include <linux/clk.h>
+#include <linux/gpio/driver.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/spinlock.h>
+
+#include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
+
+#include "../core.h"
+#include "../pinconf.h"
+#include "../pinmux.h"
+
+#define DRV_NAME	"pinctrl-rzg2l"
+
+/*
+ * Use 16 lower bits [15:0] for pin identifier
+ * Use 16 higher bits [31:16] for pin mux function
+ */
+#define MUX_PIN_ID_MASK		GENMASK(15, 0)
+#define MUX_FUNC_MASK		GENMASK(31, 16)
+#define MUX_FUNC_OFFS		16
+#define MUX_FUNC(pinconf)	(((pinconf) & MUX_FUNC_MASK) >> MUX_FUNC_OFFS)
+
+/* PIN capabilities */
+#define PIN_CFG_DRIVE_STRENGTH		BIT(0)
+#define PIN_CFG_SLEW_RATE		BIT(1)
+#define PIN_CFG_INPUT_ENABLE		BIT(2)
+#define PIN_CFG_PULL_UP_DOWN		BIT(3)
+#define PIN_CFG_IO_VOLTAGE_SD0		BIT(4)
+#define PIN_CFG_IO_VOLTAGE_SD1		BIT(5)
+#define PIN_CFG_IO_VOLTAGE_QSPI		BIT(6)
+#define PIN_CFG_IO_VOLTAGE_ETH0		BIT(7)
+#define PIN_CFG_IO_VOLTAGE_ETH1		BIT(8)
+#define PIN_CFG_FILONOFF		BIT(9)
+#define PIN_CFG_FILNUM			BIT(10)
+#define PIN_CFG_FILCLKSEL		BIT(11)
+
+#define RZG2L_MULTIPLEXED_PIN_FUNCS	(PIN_CFG_DRIVE_STRENGTH | \
+					 PIN_CFG_SLEW_RATE | \
+					 PIN_CFG_PULL_UP_DOWN | \
+					 PIN_CFG_FILONOFF | \
+					 PIN_CFG_FILNUM | \
+					 PIN_CFG_FILCLKSEL)
+
+#define RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(x)	((x) | \
+						 PIN_CFG_FILONOFF | \
+						 PIN_CFG_FILNUM | \
+						 PIN_CFG_FILCLKSEL)
+
+/*
+ * n indicates number of pins in the port, a is the register index
+ * and f is pin configuration capabilities supported.
+ */
+#define RZG2L_GPIO_PORT_PACK(n, a, f)	(((n) << 28) | ((a) << 20) | (f))
+#define RZG2L_GPIO_PORT_GET_PINCNT(x)	((((x) & ~GENMASK(28, 0)) >> 28) & 0x7)
+#define RZG2L_GPIO_PORT_GET_INDEX(x)	((((x) & ~GENMASK(19, 0) & ~GENMASK(31, 28)) >> 20) & 0x7f)
+#define RZG2L_GPIO_PORT_GET_CFGS(x)	((x) & ~GENMASK(31, 20))
+
+/*
+ * BIT(31) indicates as dedicated pin, p is the register index while
+ * referencing to SR/IEN/IOLH/FILxx registers, b is the register bits
+ * (b * 8) and f is the pin configuration capabilities supported.
+ */
+#define RZG2L_DEDICIATED_PIN			BIT(31)
+#define RZG2L_DEDICIATED_PIN_PACK(p, b, f)	(RZG2L_DEDICIATED_PIN | \
+						 ((p) << 24) | ((b) << 20) | (f))
+#define RZG2L_DEDICIATED_PIN_GET_PORT(x)	((((x) & ~GENMASK(23, 0)) >> 24) & 0x7f)
+#define RZG2L_DEDICIATED_PIN_GET_BIT(x)		((((x) & ~GENMASK(19, 0)) >> 20) & 0x7)
+#define RZG2L_DEDICIATED_PIN_GET_CFGS(x)	((x) & ~GENMASK(31, 20))
+
+#define P(n)			(0x0000 + 0x10 + (n))
+#define PM(n)			(0x0100 + 0x20 + (n) * 2)
+#define PMC(n)			(0x0200 + 0x10 + (n))
+#define PFC(n)			(0x0400 + 0x40 + (n) * 4)
+#define PIN(n)			(0x0800 + 0x10 + (n))
+#define IEN(n)			(0x1800 + (n) * 8)
+#define PWPR			(0x3014)
+#define SD_CH(n)		(0x3000 + (n) * 4)
+
+#define PVDD_1800		1	/* I/O domain voltage <= 1.8V */
+#define PVDD_3300		0	/* I/O domain voltage >= 3.3V */
+
+#define PWPR_B0WI		BIT(7)	/* Bit Write Disable */
+#define PWPR_PFCWE		BIT(6)	/* PFC Register Write Enable */
+
+#define PM_MASK			0x03
+#define PVDD_MASK		0x01
+#define PFC_MASK		0x07
+#define IEN_MASK		0x01
+
+#define PM_INPUT		0x1
+#define PM_OUTPUT		0x2
+
+#define RZG2L_PIN_ID_TO_PORT(id)	((id) / RZG2L_PINS_PER_PORT)
+#define RZG2L_PIN_ID_TO_PIN(id)		((id) % RZG2L_PINS_PER_PORT)
+
+struct rzg2l_dedicated_configs {
+	const char *name;
+	unsigned int config;
+};
+
+struct rzg2l_pinctrl_data {
+	const char * const *port_pins;
+	const unsigned int *port_pin_configs;
+	struct rzg2l_dedicated_configs *dedicated_pins;
+	unsigned int n_port_pins;
+	unsigned int n_dedicated_pins;
+};
+
+struct rzg2l_pinctrl {
+	struct pinctrl_dev		*pctl;
+	struct pinctrl_desc		desc;
+	struct pinctrl_pin_desc		*pins;
+
+	const struct rzg2l_pinctrl_data	*data;
+	void __iomem			*base;
+	struct device			*dev;
+	struct clk			*clk;
+
+	struct gpio_chip		gpio_chip;
+	struct pinctrl_gpio_range	gpio_range;
+
+	spinlock_t			lock;
+};
+
+static void rzg2l_pinctrl_set_pfc_mode(struct rzg2l_pinctrl *pctrl,
+				       u8 port, u8 pin, u8 func)
+{
+	unsigned long flags;
+	u32 reg32;
+	u16 reg16;
+	u8 reg8;
+
+	spin_lock_irqsave(&pctrl->lock, flags);
+
+	/* Set pin to 'Non-use (Hi-Z input protection)'  */
+	reg16 = readw(pctrl->base + PM(port));
+	reg16 &= ~(PM_MASK << (pin * 2));
+	writew(reg16, pctrl->base + PM(port));
+
+	/* Temporarily switch to GPIO mode with PMC register */
+	reg8 = readb(pctrl->base + PMC(port));
+	writeb(reg8 & ~BIT(pin), pctrl->base + PMC(port));
+
+	/* Set the PWPR register to allow PFC register to write */
+	writel(0x0, pctrl->base + PWPR);        /* B0WI=0, PFCWE=0 */
+	writel(PWPR_PFCWE, pctrl->base + PWPR);  /* B0WI=0, PFCWE=1 */
+
+	/* Select Pin function mode with PFC register */
+	reg32 = readl(pctrl->base + PFC(port));
+	reg32 &= ~(PFC_MASK << (pin * 4));
+	writel(reg32 | (func << (pin * 4)), pctrl->base + PFC(port));
+
+	/* Set the PWPR register to be write-protected */
+	writel(0x0, pctrl->base + PWPR);        /* B0WI=0, PFCWE=0 */
+	writel(PWPR_B0WI, pctrl->base + PWPR);  /* B0WI=1, PFCWE=0 */
+
+	/* Switch to Peripheral pin function with PMC register */
+	reg8 = readb(pctrl->base + PMC(port));
+	writeb(reg8 | BIT(pin), pctrl->base + PMC(port));
+
+	spin_unlock_irqrestore(&pctrl->lock, flags);
+};
+
+static int rzg2l_pinctrl_set_mux(struct pinctrl_dev *pctldev,
+				 unsigned int func_selector,
+				 unsigned int group_selector)
+{
+	struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+	struct function_desc *func;
+	unsigned int i, *psel_val;
+	struct group_desc *group;
+	unsigned long data;
+	int *pins;
+
+	func = pinmux_generic_get_function(pctldev, func_selector);
+	if (!func)
+		return -EINVAL;
+	group = pinctrl_generic_get_group(pctldev, group_selector);
+	if (!group)
+		return -EINVAL;
+
+	psel_val = func->data;
+	pins = group->pins;
+	data = (unsigned long)group->data;
+
+	for (i = 0; i < group->num_pins; i++) {
+		dev_dbg(pctrl->dev, "port:%u pin: %u PSEL:%u\n",
+			RZG2L_PIN_ID_TO_PORT(pins[i]), RZG2L_PIN_ID_TO_PIN(pins[i]),
+			psel_val[i]);
+		rzg2l_pinctrl_set_pfc_mode(pctrl, RZG2L_PIN_ID_TO_PORT(pins[i]),
+					   RZG2L_PIN_ID_TO_PIN(pins[i]), psel_val[i]);
+	}
+
+	return 0;
+};
+
+static int rzg2l_map_add_config(struct pinctrl_map *map,
+				const char *group_or_pin,
+				enum pinctrl_map_type type,
+				unsigned long *configs,
+				unsigned int num_configs)
+{
+	unsigned long *cfgs;
+
+	cfgs = kmemdup(configs, num_configs * sizeof(*cfgs),
+		       GFP_KERNEL);
+	if (!cfgs)
+		return -ENOMEM;
+
+	map->type = type;
+	map->data.configs.group_or_pin = group_or_pin;
+	map->data.configs.configs = cfgs;
+	map->data.configs.num_configs = num_configs;
+
+	return 0;
+}
+
+static int rzg2l_dt_subnode_to_map(struct pinctrl_dev *pctldev,
+				   struct device_node *np,
+				   struct pinctrl_map **map,
+				   unsigned int *num_maps,
+				   unsigned int *index)
+{
+	struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+	unsigned long *configs = NULL;
+	unsigned int idx = *index;
+	struct property *pinmux;
+	unsigned int nmaps = *num_maps;
+	struct pinctrl_map *maps = *map;
+	unsigned int num_pins;
+	unsigned int num_configs;
+	unsigned int num_pinmux = 0;
+	unsigned int *pins, *psel_val;
+	int i, ret, gsel, fsel;
+	const char **pin_fn;
+	struct property *prop;
+	const char *pin;
+
+	pinmux = of_find_property(np, "pinmux", NULL);
+	if (pinmux)
+		num_pinmux = pinmux->length / sizeof(u32);
+
+	ret = of_property_count_strings(np, "pins");
+	if (ret == -EINVAL) {
+		num_pins = 0;
+	} else if (ret < 0) {
+		dev_err(pctrl->dev, "Invalid pins list in DT\n");
+		return ret;
+	} else {
+		num_pins = ret;
+	}
+
+	if (!num_pinmux && !num_pins)
+		return 0;
+
+	if (num_pinmux && num_pins) {
+		dev_err(pctrl->dev,
+			"DT node must contain either a pinmux or pins and not both\n");
+		return -EINVAL;
+	}
+
+	ret = pinconf_generic_parse_dt_config(np, NULL, &configs, &num_configs);
+	if (ret < 0)
+		return ret;
+
+	if (num_pins && !num_configs) {
+		dev_err(pctrl->dev, "DT node must contain a config\n");
+		ret = -ENODEV;
+		goto done;
+	}
+
+	if (num_pinmux)
+		nmaps += 1;
+
+	if (num_pins)
+		nmaps += num_pins;
+
+	maps = krealloc(maps, sizeof(*maps) * nmaps, GFP_KERNEL);
+	if (!maps) {
+		ret = -ENOMEM;
+		goto done;
+	}
+
+	*map = maps;
+	*num_maps = nmaps;
+	if (num_pins) {
+		of_property_for_each_string(np, "pins", prop, pin) {
+			ret = rzg2l_map_add_config(&maps[idx], pin,
+						   PIN_MAP_TYPE_CONFIGS_PIN,
+						   configs, num_configs);
+			if (ret < 0)
+				goto done;
+
+			idx++;
+		}
+		ret = 0;
+		goto done;
+	}
+
+	pins = devm_kcalloc(pctrl->dev, num_pinmux, sizeof(*pins), GFP_KERNEL);
+	psel_val = devm_kcalloc(pctrl->dev, num_pinmux, sizeof(*psel_val),
+				GFP_KERNEL);
+	pin_fn = devm_kzalloc(pctrl->dev, sizeof(*pin_fn), GFP_KERNEL);
+	if (!pins || !psel_val || !pin_fn) {
+		ret = -ENOMEM;
+		goto done;
+	}
+
+	/* Collect pin locations and mux settings from DT properties */
+	for (i = 0; i < num_pinmux; ++i) {
+		u32 value;
+
+		ret = of_property_read_u32_index(np, "pinmux", i, &value);
+		if (ret)
+			goto done;
+		pins[i] = value & MUX_PIN_ID_MASK;
+		psel_val[i] = MUX_FUNC(value);
+	}
+
+	/* Register a single pin group listing all the pins we read from DT */
+	gsel = pinctrl_generic_add_group(pctldev, np->name, pins, num_pinmux, NULL);
+	if (gsel < 0) {
+		ret = gsel;
+		goto done;
+	}
+
+	/*
+	 * Register a single group function where the 'data' is an array PSEL
+	 * register values read from DT.
+	 */
+	pin_fn[0] = np->name;
+	fsel = pinmux_generic_add_function(pctldev, np->name, pin_fn, 1,
+					   psel_val);
+	if (fsel < 0) {
+		ret = fsel;
+		goto remove_group;
+	}
+
+	maps[idx].type = PIN_MAP_TYPE_MUX_GROUP;
+	maps[idx].data.mux.group = np->name;
+	maps[idx].data.mux.function = np->name;
+	idx++;
+
+	dev_dbg(pctrl->dev, "Parsed %pOF with %d pins\n", np, num_pinmux);
+	ret = 0;
+	goto done;
+
+remove_group:
+	pinctrl_generic_remove_group(pctldev, gsel);
+done:
+	*index = idx;
+	kfree(configs);
+	return ret;
+}
+
+static void rzg2l_dt_free_map(struct pinctrl_dev *pctldev,
+			      struct pinctrl_map *map,
+			      unsigned int num_maps)
+{
+	unsigned int i;
+
+	if (!map)
+		return;
+
+	for (i = 0; i < num_maps; ++i) {
+		if (map[i].type == PIN_MAP_TYPE_CONFIGS_GROUP ||
+		    map[i].type == PIN_MAP_TYPE_CONFIGS_PIN)
+			kfree(map[i].data.configs.configs);
+	}
+	kfree(map);
+}
+
+static int rzg2l_dt_node_to_map(struct pinctrl_dev *pctldev,
+				struct device_node *np,
+				struct pinctrl_map **map,
+				unsigned int *num_maps)
+{
+	struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+	struct device_node *child;
+	unsigned int index;
+	int ret;
+
+	*map = NULL;
+	*num_maps = 0;
+	index = 0;
+
+	for_each_child_of_node(np, child) {
+		ret = rzg2l_dt_subnode_to_map(pctldev, child, map,
+					      num_maps, &index);
+		if (ret < 0) {
+			of_node_put(child);
+			goto done;
+		}
+	}
+
+	if (*num_maps == 0) {
+		ret = rzg2l_dt_subnode_to_map(pctldev, np, map,
+					      num_maps, &index);
+		if (ret < 0)
+			goto done;
+	}
+
+	if (*num_maps)
+		return 0;
+
+	dev_err(pctrl->dev, "no mapping found in node %pOF\n", np);
+	ret = -EINVAL;
+
+done:
+	if (ret < 0)
+		rzg2l_dt_free_map(pctldev, *map, *num_maps);
+
+	return ret;
+}
+
+static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev,
+				     unsigned int _pin,
+				     unsigned long *config)
+{
+	struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+	enum pin_config_param param = pinconf_to_config_param(*config);
+	const struct pinctrl_pin_desc *pin = &pctrl->desc.pins[_pin];
+	unsigned int *pin_data = pin->drv_data;
+	unsigned int arg = 0;
+	unsigned long flags;
+	void __iomem *addr;
+	u32 port = 0, reg;
+	u32 cfg = 0;
+	u8 bit = 0;
+
+	if (!pin_data)
+		return -EINVAL;
+
+	if (*pin_data & RZG2L_DEDICIATED_PIN) {
+		port = RZG2L_DEDICIATED_PIN_GET_PORT(*pin_data);
+		cfg = RZG2L_DEDICIATED_PIN_GET_CFGS(*pin_data);
+		bit = RZG2L_DEDICIATED_PIN_GET_BIT(*pin_data);
+	}
+
+	switch (param) {
+	case PIN_CONFIG_INPUT_ENABLE:
+		if (!(cfg & PIN_CFG_INPUT_ENABLE))
+			return -EINVAL;
+		spin_lock_irqsave(&pctrl->lock, flags);
+		/* handle _L/_H for 32-bit register read/write */
+		addr = pctrl->base + IEN(port) + ((bit > 3) ? 0x4 : 0x0);
+		if (bit > 3)
+			bit -= 4;
+
+		reg = readl(addr) & (IEN_MASK << (bit * 8));
+		arg = (reg >> (bit * 8)) & 0x1;
+		spin_unlock_irqrestore(&pctrl->lock, flags);
+		break;
+
+	case PIN_CONFIG_POWER_SOURCE:
+		if (!((cfg & PIN_CFG_IO_VOLTAGE_SD0) || (cfg & PIN_CFG_IO_VOLTAGE_SD1)))
+			return -EINVAL;
+
+		spin_lock_irqsave(&pctrl->lock, flags);
+		addr = pctrl->base + ((cfg == PIN_CFG_IO_VOLTAGE_SD0) ? SD_CH(0) : SD_CH(1));
+		arg = (readl(addr) & PVDD_MASK) ? 1800 : 3300;
+		spin_unlock_irqrestore(&pctrl->lock, flags);
+		break;
+
+	default:
+		return -ENOTSUPP;
+	}
+
+	*config = pinconf_to_config_packed(param, arg);
+
+	return 0;
+};
+
+static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev,
+				     unsigned int _pin,
+				     unsigned long *_configs,
+				     unsigned int num_configs)
+{
+	struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+	const struct pinctrl_pin_desc *pin = &pctrl->desc.pins[_pin];
+	unsigned int *pin_data = pin->drv_data;
+	enum pin_config_param param;
+	unsigned long flags;
+	void __iomem *addr;
+	u32 port = 0, reg;
+	unsigned int i;
+	u32 cfg = 0;
+	u8 bit = 0;
+
+	if (!pin_data)
+		return -EINVAL;
+
+	if (*pin_data & BIT(31)) {
+		port = RZG2L_DEDICIATED_PIN_GET_PORT(*pin_data);
+		cfg = RZG2L_DEDICIATED_PIN_GET_CFGS(*pin_data);
+		bit = RZG2L_DEDICIATED_PIN_GET_BIT(*pin_data);
+	}
+
+	for (i = 0; i < num_configs; i++) {
+		param = pinconf_to_config_param(_configs[i]);
+		switch (param) {
+		case PIN_CONFIG_INPUT_ENABLE: {
+			unsigned int arg =
+					pinconf_to_config_argument(_configs[i]);
+
+			if (!(cfg & PIN_CFG_INPUT_ENABLE))
+				return -EINVAL;
+
+			/* handle _L/_H for 32-bit register read/write */
+			addr = pctrl->base + IEN(port) + ((bit > 3) ? 0x4 : 0x0);
+			if (bit > 3)
+				bit -= 4;
+
+			spin_lock_irqsave(&pctrl->lock, flags);
+			reg = readl(addr) & ~(IEN_MASK << (bit * 8));
+			writel(reg | (arg << (bit * 8)), addr);
+			spin_unlock_irqrestore(&pctrl->lock, flags);
+			break;
+		}
+
+		case PIN_CONFIG_POWER_SOURCE: {
+			unsigned int mV = pinconf_to_config_argument(_configs[i]);
+
+			if (mV != 1800 && mV != 3300)
+				return -EINVAL;
+
+			if (!(cfg & PIN_CFG_IO_VOLTAGE_SD0 || cfg & PIN_CFG_IO_VOLTAGE_SD1))
+				return -EINVAL;
+
+			addr = pctrl->base + ((cfg == PIN_CFG_IO_VOLTAGE_SD0) ?
+					      SD_CH(0) : SD_CH(1));
+			spin_lock_irqsave(&pctrl->lock, flags);
+			writel((mV == 1800) ? PVDD_1800 : PVDD_3300, addr);
+			spin_unlock_irqrestore(&pctrl->lock, flags);
+			break;
+		}
+		default:
+			return -EOPNOTSUPP;
+		}
+	}
+
+	return 0;
+}
+
+static int rzg2l_pinctrl_pinconf_group_set(struct pinctrl_dev *pctldev,
+					   unsigned int group,
+					   unsigned long *configs,
+					   unsigned int num_configs)
+{
+	const unsigned int *pins;
+	unsigned int i, npins;
+	int ret;
+
+	ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < npins; i++) {
+		ret = rzg2l_pinctrl_pinconf_set(pctldev, pins[i], configs,
+						num_configs);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+};
+
+static int rzg2l_pinctrl_pinconf_group_get(struct pinctrl_dev *pctldev,
+					   unsigned int group,
+					   unsigned long *config)
+{
+	const unsigned int *pins;
+	unsigned int i, npins, prev_config = 0;
+	int ret;
+
+	ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < npins; i++) {
+		ret = rzg2l_pinctrl_pinconf_get(pctldev, pins[i], config);
+		if (ret)
+			return ret;
+
+		/* Check config matching between to pin  */
+		if (i && prev_config != *config)
+			return -EOPNOTSUPP;
+
+		prev_config = *config;
+	}
+
+	return 0;
+};
+
+static const struct pinctrl_ops rzg2l_pinctrl_pctlops = {
+	.get_groups_count = pinctrl_generic_get_group_count,
+	.get_group_name = pinctrl_generic_get_group_name,
+	.get_group_pins = pinctrl_generic_get_group_pins,
+	.dt_node_to_map = rzg2l_dt_node_to_map,
+	.dt_free_map = rzg2l_dt_free_map,
+};
+
+static const struct pinmux_ops rzg2l_pinctrl_pmxops = {
+	.get_functions_count = pinmux_generic_get_function_count,
+	.get_function_name = pinmux_generic_get_function_name,
+	.get_function_groups = pinmux_generic_get_function_groups,
+	.set_mux = rzg2l_pinctrl_set_mux,
+	.strict = true,
+};
+
+static const struct pinconf_ops rzg2l_pinctrl_confops = {
+	.is_generic = true,
+	.pin_config_get = rzg2l_pinctrl_pinconf_get,
+	.pin_config_set = rzg2l_pinctrl_pinconf_set,
+	.pin_config_group_set = rzg2l_pinctrl_pinconf_group_set,
+	.pin_config_group_get = rzg2l_pinctrl_pinconf_group_get,
+	.pin_config_config_dbg_show = pinconf_generic_dump_config,
+};
+
+static int rzg2l_gpio_request(struct gpio_chip *chip, unsigned int offset)
+{
+	struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip);
+	u32 port = RZG2L_PIN_ID_TO_PORT(offset);
+	u8 bit = RZG2L_PIN_ID_TO_PIN(offset);
+	unsigned long flags;
+	u8 reg8;
+	int ret;
+
+	ret = pinctrl_gpio_request(chip->base + offset);
+	if (ret)
+		return ret;
+
+	spin_lock_irqsave(&pctrl->lock, flags);
+
+	/* Select GPIO mode in PMC Register */
+	reg8 = readb(pctrl->base + PMC(port));
+	reg8 &= ~BIT(bit);
+	writeb(reg8, pctrl->base + PMC(port));
+
+	spin_unlock_irqrestore(&pctrl->lock, flags);
+
+	return 0;
+}
+
+static void rzg2l_gpio_set_direction(struct rzg2l_pinctrl *pctrl, u32 port,
+				     u8 bit, bool output)
+{
+	unsigned long flags;
+	u16 reg16;
+
+	spin_lock_irqsave(&pctrl->lock, flags);
+
+	reg16 = readw(pctrl->base + PM(port));
+	reg16 &= ~(PM_MASK << (bit * 2));
+
+	reg16 |= (output ? PM_OUTPUT : PM_INPUT) << (bit * 2);
+	writew(reg16, pctrl->base + PM(port));
+
+	spin_unlock_irqrestore(&pctrl->lock, flags);
+}
+
+static int rzg2l_gpio_get_direction(struct gpio_chip *chip, unsigned int offset)
+{
+	struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip);
+	u32 port = RZG2L_PIN_ID_TO_PORT(offset);
+	u8 bit = RZG2L_PIN_ID_TO_PIN(offset);
+
+	if (!(readb(pctrl->base + PMC(port)) & BIT(bit))) {
+		u16 reg16;
+
+		reg16 = readw(pctrl->base + PM(port));
+		reg16 = (reg16 >> (bit * 2)) & PM_MASK;
+		if (reg16 == PM_OUTPUT)
+			return GPIO_LINE_DIRECTION_OUT;
+	}
+
+	return GPIO_LINE_DIRECTION_IN;
+}
+
+static int rzg2l_gpio_direction_input(struct gpio_chip *chip,
+				      unsigned int offset)
+{
+	struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip);
+	u32 port = RZG2L_PIN_ID_TO_PORT(offset);
+	u8 bit = RZG2L_PIN_ID_TO_PIN(offset);
+
+	rzg2l_gpio_set_direction(pctrl, port, bit, false);
+
+	return 0;
+}
+
+static void rzg2l_gpio_set(struct gpio_chip *chip, unsigned int offset,
+			   int value)
+{
+	struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip);
+	u32 port = RZG2L_PIN_ID_TO_PORT(offset);
+	u8 bit = RZG2L_PIN_ID_TO_PIN(offset);
+	unsigned long flags;
+	u8 reg8;
+
+	spin_lock_irqsave(&pctrl->lock, flags);
+
+	reg8 = readb(pctrl->base + P(port));
+
+	if (value)
+		writeb(reg8 | BIT(bit), pctrl->base + P(port));
+	else
+		writeb(reg8 & ~BIT(bit), pctrl->base + P(port));
+
+	spin_unlock_irqrestore(&pctrl->lock, flags);
+}
+
+static int rzg2l_gpio_direction_output(struct gpio_chip *chip,
+				       unsigned int offset, int value)
+{
+	struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip);
+	u32 port = RZG2L_PIN_ID_TO_PORT(offset);
+	u8 bit = RZG2L_PIN_ID_TO_PIN(offset);
+
+	rzg2l_gpio_set(chip, offset, value);
+	rzg2l_gpio_set_direction(pctrl, port, bit, true);
+
+	return 0;
+}
+
+static int rzg2l_gpio_get(struct gpio_chip *chip, unsigned int offset)
+{
+	struct rzg2l_pinctrl *pctrl = gpiochip_get_data(chip);
+	u32 port = RZG2L_PIN_ID_TO_PORT(offset);
+	u8 bit = RZG2L_PIN_ID_TO_PIN(offset);
+	u16 reg16;
+
+	reg16 = readw(pctrl->base + PM(port));
+	reg16 = (reg16 >> (bit * 2)) & PM_MASK;
+
+	if (reg16 == PM_INPUT)
+		return !!(readb(pctrl->base + PIN(port)) & BIT(bit));
+	else if (reg16 == PM_OUTPUT)
+		return !!(readb(pctrl->base + P(port)) & BIT(bit));
+	else
+		return -EINVAL;
+}
+
+static void rzg2l_gpio_free(struct gpio_chip *chip, unsigned int offset)
+{
+	pinctrl_gpio_free(chip->base + offset);
+
+	/*
+	 * Set the GPIO as an input to ensure that the next GPIO request won't
+	 * drive the GPIO pin as an output.
+	 */
+	rzg2l_gpio_direction_input(chip, offset);
+}
+
+static const char * const rzg2l_gpio_names[] = {
+	"P0_0", "P0_1", "P0_2", "P0_3", "P0_4", "P0_5", "P0_6", "P0_7",
+	"P1_0", "P1_1", "P1_2", "P1_3", "P1_4", "P1_5", "P1_6", "P1_7",
+	"P2_0", "P2_1", "P2_2", "P2_3", "P2_4", "P2_5", "P2_6", "P2_7",
+	"P3_0", "P3_1", "P3_2", "P3_3", "P3_4", "P3_5", "P3_6", "P3_7",
+	"P4_0", "P4_1", "P4_2", "P4_3", "P4_4", "P4_5", "P4_6", "P4_7",
+	"P5_0", "P5_1", "P5_2", "P5_3", "P5_4", "P5_5", "P5_6", "P5_7",
+	"P6_0", "P6_1", "P6_2", "P6_3", "P6_4", "P6_5", "P6_6", "P6_7",
+	"P7_0", "P7_1", "P7_2", "P7_3", "P7_4", "P7_5", "P7_6", "P7_7",
+	"P8_0", "P8_1", "P8_2", "P8_3", "P8_4", "P8_5", "P8_6", "P8_7",
+	"P9_0", "P9_1", "P9_2", "P9_3", "P9_4", "P9_5", "P9_6", "P9_7",
+	"P10_0", "P10_1", "P10_2", "P10_3", "P10_4", "P10_5", "P10_6", "P10_7",
+	"P11_0", "P11_1", "P11_2", "P11_3", "P11_4", "P11_5", "P11_6", "P11_7",
+	"P12_0", "P12_1", "P12_2", "P12_3", "P12_4", "P12_5", "P12_6", "P12_7",
+	"P13_0", "P13_1", "P13_2", "P13_3", "P13_4", "P13_5", "P13_6", "P13_7",
+	"P14_0", "P14_1", "P14_2", "P14_3", "P14_4", "P14_5", "P14_6", "P14_7",
+	"P15_0", "P15_1", "P15_2", "P15_3", "P15_4", "P15_5", "P15_6", "P15_7",
+	"P16_0", "P16_1", "P16_2", "P16_3", "P16_4", "P16_5", "P16_6", "P16_7",
+	"P17_0", "P17_1", "P17_2", "P17_3", "P17_4", "P17_5", "P17_6", "P17_7",
+	"P18_0", "P18_1", "P18_2", "P18_3", "P18_4", "P18_5", "P18_6", "P18_7",
+	"P19_0", "P19_1", "P19_2", "P19_3", "P19_4", "P19_5", "P19_6", "P19_7",
+	"P20_0", "P20_1", "P20_2", "P20_3", "P20_4", "P20_5", "P20_6", "P20_7",
+	"P21_0", "P21_1", "P21_2", "P21_3", "P21_4", "P21_5", "P21_6", "P21_7",
+	"P22_0", "P22_1", "P22_2", "P22_3", "P22_4", "P22_5", "P22_6", "P22_7",
+	"P23_0", "P23_1", "P23_2", "P23_3", "P23_4", "P23_5", "P23_6", "P23_7",
+	"P24_0", "P24_1", "P24_2", "P24_3", "P24_4", "P24_5", "P24_6", "P24_7",
+	"P25_0", "P25_1", "P25_2", "P25_3", "P25_4", "P25_5", "P25_6", "P25_7",
+	"P26_0", "P26_1", "P26_2", "P26_3", "P26_4", "P26_5", "P26_6", "P26_7",
+	"P27_0", "P27_1", "P27_2", "P27_3", "P27_4", "P27_5", "P27_6", "P27_7",
+	"P28_0", "P28_1", "P28_2", "P28_3", "P28_4", "P28_5", "P28_6", "P28_7",
+	"P29_0", "P29_1", "P29_2", "P29_3", "P29_4", "P29_5", "P29_6", "P29_7",
+	"P30_0", "P30_1", "P30_2", "P30_3", "P30_4", "P30_5", "P30_6", "P30_7",
+	"P31_0", "P31_1", "P31_2", "P31_3", "P31_4", "P31_5", "P31_6", "P31_7",
+	"P32_0", "P32_1", "P32_2", "P32_3", "P32_4", "P32_5", "P32_6", "P32_7",
+	"P33_0", "P33_1", "P33_2", "P33_3", "P33_4", "P33_5", "P33_6", "P33_7",
+	"P34_0", "P34_1", "P34_2", "P34_3", "P34_4", "P34_5", "P34_6", "P34_7",
+	"P35_0", "P35_1", "P35_2", "P35_3", "P35_4", "P35_5", "P35_6", "P35_7",
+	"P36_0", "P36_1", "P36_2", "P36_3", "P36_4", "P36_5", "P36_6", "P36_7",
+	"P37_0", "P37_1", "P37_2", "P37_3", "P37_4", "P37_5", "P37_6", "P37_7",
+	"P38_0", "P38_1", "P38_2", "P38_3", "P38_4", "P38_5", "P38_6", "P38_7",
+	"P39_0", "P39_1", "P39_2", "P39_3", "P39_4", "P39_5", "P39_6", "P39_7",
+	"P40_0", "P40_1", "P40_2", "P40_3", "P40_4", "P40_5", "P40_6", "P40_7",
+	"P41_0", "P41_1", "P41_2", "P41_3", "P41_4", "P41_5", "P41_6", "P41_7",
+	"P42_0", "P42_1", "P42_2", "P42_3", "P42_4", "P42_5", "P42_6", "P42_7",
+	"P43_0", "P43_1", "P43_2", "P43_3", "P43_4", "P43_5", "P43_6", "P43_7",
+	"P44_0", "P44_1", "P44_2", "P44_3", "P44_4", "P44_5", "P44_6", "P44_7",
+	"P45_0", "P45_1", "P45_2", "P45_3", "P45_4", "P45_5", "P45_6", "P45_7",
+	"P46_0", "P46_1", "P46_2", "P46_3", "P46_4", "P46_5", "P46_6", "P46_7",
+	"P47_0", "P47_1", "P47_2", "P47_3", "P47_4", "P47_5", "P47_6", "P47_7",
+	"P48_0", "P48_1", "P48_2", "P48_3", "P48_4", "P48_5", "P48_6", "P48_7",
+};
+
+static const u32 rzg2l_gpio_configs[] = {
+	RZG2L_GPIO_PORT_PACK(2, 0x10, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(2, 0x11, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(2, 0x12, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(2, 0x13, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(2, 0x14, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(3, 0x15, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(2, 0x16, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(3, 0x17, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(3, 0x18, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(2, 0x19, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(2, 0x1a, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(2, 0x1b, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(2, 0x1c, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(3, 0x1d, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(2, 0x1e, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(2, 0x1f, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(2, 0x20, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(3, 0x22, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(2, 0x22, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(2, 0x23, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(3, 0x24, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)),
+	RZG2L_GPIO_PORT_PACK(2, 0x25, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)),
+	RZG2L_GPIO_PORT_PACK(2, 0x26, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)),
+	RZG2L_GPIO_PORT_PACK(2, 0x27, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)),
+	RZG2L_GPIO_PORT_PACK(2, 0x28, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)),
+	RZG2L_GPIO_PORT_PACK(2, 0x29, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)),
+	RZG2L_GPIO_PORT_PACK(2, 0x2a, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)),
+	RZG2L_GPIO_PORT_PACK(2, 0x2b, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)),
+	RZG2L_GPIO_PORT_PACK(2, 0x2c, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH0)),
+	RZG2L_GPIO_PORT_PACK(2, 0x2d, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)),
+	RZG2L_GPIO_PORT_PACK(2, 0x2e, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)),
+	RZG2L_GPIO_PORT_PACK(2, 0x2f, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)),
+	RZG2L_GPIO_PORT_PACK(2, 0x30, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)),
+	RZG2L_GPIO_PORT_PACK(2, 0x31, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)),
+	RZG2L_GPIO_PORT_PACK(2, 0x32, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)),
+	RZG2L_GPIO_PORT_PACK(2, 0x33, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)),
+	RZG2L_GPIO_PORT_PACK(2, 0x34, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)),
+	RZG2L_GPIO_PORT_PACK(3, 0x35, RZG2L_MULTIPLEXED_ETH_PIN_FUNCS(PIN_CFG_IO_VOLTAGE_ETH1)),
+	RZG2L_GPIO_PORT_PACK(2, 0x36, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(3, 0x37, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(3, 0x38, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(2, 0x39, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(5, 0x3a, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(4, 0x3b, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(4, 0x3c, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(4, 0x3d, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(4, 0x3e, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(4, 0x3f, RZG2L_MULTIPLEXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(5, 0x40, RZG2L_MULTIPLEXED_PIN_FUNCS),
+};
+
+static  struct rzg2l_dedicated_configs rzg2l_dedicated_pins[] = {
+	{ "NMI", RZG2L_DEDICIATED_PIN_PACK(0x1, 0, (PIN_CFG_FILONOFF |
+						    PIN_CFG_FILNUM |
+						    PIN_CFG_FILCLKSEL)) },
+	{ "TMS/SWDIO", RZG2L_DEDICIATED_PIN_PACK(0x2, 0, (PIN_CFG_SLEW_RATE |
+							  PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_INPUT_ENABLE))},
+	{ "TDO", RZG2L_DEDICIATED_PIN_PACK(0x3, 0, (PIN_CFG_DRIVE_STRENGTH |
+						    PIN_CFG_SLEW_RATE |
+						    PIN_CFG_INPUT_ENABLE))},
+	{ "AUDIO_CLK1", RZG2L_DEDICIATED_PIN_PACK(0x4, 0, PIN_CFG_INPUT_ENABLE)},
+	{ "AUDIO_CLK2", RZG2L_DEDICIATED_PIN_PACK(0x4, 1, PIN_CFG_INPUT_ENABLE)},
+	{ "SD0_CLK", RZG2L_DEDICIATED_PIN_PACK(0x6, 0, (PIN_CFG_DRIVE_STRENGTH |
+							PIN_CFG_SLEW_RATE |
+							PIN_CFG_IO_VOLTAGE_SD0))},
+	{ "SD0_CMD", RZG2L_DEDICIATED_PIN_PACK(0x6, 1, (PIN_CFG_DRIVE_STRENGTH |
+							PIN_CFG_SLEW_RATE |
+							PIN_CFG_INPUT_ENABLE |
+							PIN_CFG_IO_VOLTAGE_SD0))},
+	{ "SD0_RST", RZG2L_DEDICIATED_PIN_PACK(0x6, 2, (PIN_CFG_DRIVE_STRENGTH |
+							PIN_CFG_SLEW_RATE |
+							PIN_CFG_IO_VOLTAGE_SD0))},
+	{ "SD0_DATA0", RZG2L_DEDICIATED_PIN_PACK(0x7, 0, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_INPUT_ENABLE |
+							  PIN_CFG_IO_VOLTAGE_SD0))},
+	{ "SD0_DATA1", RZG2L_DEDICIATED_PIN_PACK(0x7, 1, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_INPUT_ENABLE |
+							  PIN_CFG_IO_VOLTAGE_SD0))},
+	{ "SD0_DATA2", RZG2L_DEDICIATED_PIN_PACK(0x7, 2, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_INPUT_ENABLE |
+							  PIN_CFG_IO_VOLTAGE_SD0))},
+	{ "SD0_DATA3", RZG2L_DEDICIATED_PIN_PACK(0x7, 3, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_INPUT_ENABLE |
+							  PIN_CFG_IO_VOLTAGE_SD0))},
+	{ "SD0_DATA4", RZG2L_DEDICIATED_PIN_PACK(0x7, 4, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_INPUT_ENABLE |
+							  PIN_CFG_IO_VOLTAGE_SD0))},
+	{ "SD0_DATA5", RZG2L_DEDICIATED_PIN_PACK(0x7, 5, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_INPUT_ENABLE |
+							  PIN_CFG_IO_VOLTAGE_SD0))},
+	{ "SD0_DATA6", RZG2L_DEDICIATED_PIN_PACK(0x7, 6, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_INPUT_ENABLE |
+							  PIN_CFG_IO_VOLTAGE_SD0))},
+	{ "SD0_DATA7", RZG2L_DEDICIATED_PIN_PACK(0x7, 7, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_INPUT_ENABLE |
+							  PIN_CFG_IO_VOLTAGE_SD0))},
+	{ "SD1_CLK", RZG2L_DEDICIATED_PIN_PACK(0x8, 0, (PIN_CFG_DRIVE_STRENGTH |
+							PIN_CFG_SLEW_RATE |
+							PIN_CFG_IO_VOLTAGE_SD1))},
+	{ "SD1_CMD", RZG2L_DEDICIATED_PIN_PACK(0x8, 1, (PIN_CFG_DRIVE_STRENGTH |
+							PIN_CFG_SLEW_RATE |
+							PIN_CFG_INPUT_ENABLE |
+							PIN_CFG_IO_VOLTAGE_SD1))},
+	{ "SD1_DATA0", RZG2L_DEDICIATED_PIN_PACK(0x9, 0, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_INPUT_ENABLE |
+							  PIN_CFG_IO_VOLTAGE_SD1))},
+	{ "SD1_DATA1", RZG2L_DEDICIATED_PIN_PACK(0x9, 1, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_INPUT_ENABLE |
+							  PIN_CFG_IO_VOLTAGE_SD1))},
+	{ "SD1_DATA2", RZG2L_DEDICIATED_PIN_PACK(0x9, 2, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_INPUT_ENABLE |
+							  PIN_CFG_IO_VOLTAGE_SD1))},
+	{ "SD1_DATA3", RZG2L_DEDICIATED_PIN_PACK(0x9, 3, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_INPUT_ENABLE |
+							  PIN_CFG_IO_VOLTAGE_SD1))},
+	{ "QSPI0_SPCLK", RZG2L_DEDICIATED_PIN_PACK(0xa, 0, (PIN_CFG_DRIVE_STRENGTH |
+							    PIN_CFG_SLEW_RATE |
+							    PIN_CFG_IO_VOLTAGE_QSPI))},
+	{ "QSPI0_IO0", RZG2L_DEDICIATED_PIN_PACK(0xa, 1, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_IO_VOLTAGE_QSPI))},
+	{ "QSPI0_IO1", RZG2L_DEDICIATED_PIN_PACK(0xa, 2, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_IO_VOLTAGE_QSPI))},
+	{ "QSPI0_IO2", RZG2L_DEDICIATED_PIN_PACK(0xa, 3, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_IO_VOLTAGE_QSPI))},
+	{ "QSPI0_IO3", RZG2L_DEDICIATED_PIN_PACK(0xa, 4, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_IO_VOLTAGE_QSPI))},
+	{ "QSPI0_SSL", RZG2L_DEDICIATED_PIN_PACK(0xa, 5, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_IO_VOLTAGE_QSPI))},
+	{ "QSPI1_SPCLK", RZG2L_DEDICIATED_PIN_PACK(0xb, 0, (PIN_CFG_DRIVE_STRENGTH |
+							    PIN_CFG_SLEW_RATE |
+							    PIN_CFG_IO_VOLTAGE_QSPI))},
+	{ "QSPI1_IO0", RZG2L_DEDICIATED_PIN_PACK(0xb, 1, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_IO_VOLTAGE_QSPI))},
+	{ "QSPI1_1", RZG2L_DEDICIATED_PIN_PACK(0xb, 2, (PIN_CFG_DRIVE_STRENGTH |
+							PIN_CFG_SLEW_RATE |
+							PIN_CFG_IO_VOLTAGE_QSPI))},
+	{ "QSPI1_IO2", RZG2L_DEDICIATED_PIN_PACK(0xb, 3, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_IO_VOLTAGE_QSPI))},
+	{ "QSPI1_IO3", RZG2L_DEDICIATED_PIN_PACK(0xb, 4, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE  |
+							  PIN_CFG_IO_VOLTAGE_QSPI))},
+	{ "QSPI1_SSL", RZG2L_DEDICIATED_PIN_PACK(0xb, 5, (PIN_CFG_DRIVE_STRENGTH |
+							  PIN_CFG_SLEW_RATE |
+							  PIN_CFG_IO_VOLTAGE_QSPI))},
+	{ "QSPI_RESET", RZG2L_DEDICIATED_PIN_PACK(0xc, 0, (PIN_CFG_DRIVE_STRENGTH |
+							   PIN_CFG_SLEW_RATE |
+							   PIN_CFG_IO_VOLTAGE_QSPI))},
+	{ "QSPI_WP", RZG2L_DEDICIATED_PIN_PACK(0xc, 1, (PIN_CFG_DRIVE_STRENGTH |
+							PIN_CFG_SLEW_RATE |
+							PIN_CFG_IO_VOLTAGE_QSPI))},
+	{ "QSPI_INT", RZG2L_DEDICIATED_PIN_PACK(0xc, 2, (PIN_CFG_DRIVE_STRENGTH |
+							 PIN_CFG_SLEW_RATE |
+							 PIN_CFG_IO_VOLTAGE_QSPI))},
+	{ "WDTOVF_PERROUT", RZG2L_DEDICIATED_PIN_PACK(0xd, 0, (PIN_CFG_DRIVE_STRENGTH |
+							       PIN_CFG_SLEW_RATE))},
+	{ "RIIC0_SDA", RZG2L_DEDICIATED_PIN_PACK(0xe, 0, PIN_CFG_INPUT_ENABLE)},
+	{ "RIIC0_SCL", RZG2L_DEDICIATED_PIN_PACK(0xe, 1, PIN_CFG_INPUT_ENABLE)},
+	{ "RIIC1_SDA", RZG2L_DEDICIATED_PIN_PACK(0xe, 2, PIN_CFG_INPUT_ENABLE)},
+	{ "RIIC1_SCL", RZG2L_DEDICIATED_PIN_PACK(0xe, 3, PIN_CFG_INPUT_ENABLE)},
+};
+
+static int rzg2l_gpio_register(struct rzg2l_pinctrl *pctrl)
+{
+	struct device_node *np = pctrl->dev->of_node;
+	struct gpio_chip *chip = &pctrl->gpio_chip;
+	const char *name = dev_name(pctrl->dev);
+	struct of_phandle_args of_args;
+	int ret;
+
+	ret = of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, 0, &of_args);
+	if (ret) {
+		dev_err(pctrl->dev, "Unable to parse gpio-ranges\n");
+		return ret;
+	}
+
+	if (of_args.args[0] != 0 || of_args.args[1] != 0 ||
+	    of_args.args[2] != ARRAY_SIZE(rzg2l_gpio_names)) {
+		dev_err(pctrl->dev, "gpio-ranges does not match selected SOC\n");
+		return -EINVAL;
+	}
+
+	chip->names = rzg2l_gpio_names;
+	chip->request = rzg2l_gpio_request;
+	chip->free = rzg2l_gpio_free;
+	chip->get_direction = rzg2l_gpio_get_direction;
+	chip->direction_input = rzg2l_gpio_direction_input;
+	chip->direction_output = rzg2l_gpio_direction_output;
+	chip->get = rzg2l_gpio_get;
+	chip->set = rzg2l_gpio_set;
+	chip->label = name;
+	chip->parent = pctrl->dev;
+	chip->owner = THIS_MODULE;
+	chip->base = -1;
+	chip->ngpio = of_args.args[2];
+
+	pctrl->gpio_range.id = 0;
+	pctrl->gpio_range.pin_base = 0;
+	pctrl->gpio_range.base = 0;
+	pctrl->gpio_range.npins = chip->ngpio;
+	pctrl->gpio_range.name = chip->label;
+	pctrl->gpio_range.gc = chip;
+	ret = devm_gpiochip_add_data(pctrl->dev, chip, pctrl);
+	if (ret) {
+		dev_err(pctrl->dev, "failed to add GPIO controller\n");
+		return ret;
+	}
+
+	dev_dbg(pctrl->dev, "Registered gpio controller\n");
+
+	return 0;
+}
+
+static int rzg2l_pinctrl_register(struct rzg2l_pinctrl *pctrl)
+{
+	struct pinctrl_pin_desc *pins;
+	unsigned int *pin_data;
+	unsigned int i, j;
+	int ret;
+
+	pctrl->desc.name = DRV_NAME;
+	pctrl->desc.npins = pctrl->data->n_port_pins + pctrl->data->n_dedicated_pins;
+	pctrl->desc.pctlops = &rzg2l_pinctrl_pctlops;
+	pctrl->desc.pmxops = &rzg2l_pinctrl_pmxops;
+	pctrl->desc.confops = &rzg2l_pinctrl_confops;
+	pctrl->desc.owner = THIS_MODULE;
+
+	pins = devm_kcalloc(pctrl->dev, pctrl->desc.npins, sizeof(*pins), GFP_KERNEL);
+	if (!pins)
+		return -ENOMEM;
+
+	pin_data = devm_kcalloc(pctrl->dev, pctrl->desc.npins,
+				sizeof(unsigned int), GFP_KERNEL);
+	if (!pin_data)
+		return -ENOMEM;
+
+	pctrl->pins = pins;
+	pctrl->desc.pins = pins;
+
+	for (i = 0, j = 0; i < pctrl->data->n_port_pins; i++) {
+		pins[i].number = i;
+		pins[i].name = pctrl->data->port_pins[i];
+		if (i && !(i % RZG2L_PINS_PER_PORT))
+			j++;
+		pin_data[i] = pctrl->data->port_pin_configs[j];
+		pins[i].drv_data = &pin_data[i];
+	}
+
+	for (i = 0; i < pctrl->data->n_dedicated_pins; i++) {
+		unsigned int index = pctrl->data->n_port_pins + i;
+
+		pins[index].number = index;
+		pins[index].name = pctrl->data->dedicated_pins[i].name;
+		pin_data[index] = pctrl->data->dedicated_pins[i].config;
+		pins[index].drv_data = &pin_data[index];
+	}
+
+	ret = devm_pinctrl_register_and_init(pctrl->dev, &pctrl->desc, pctrl,
+					     &pctrl->pctl);
+	if (ret) {
+		dev_err(pctrl->dev, "pinctrl registration failed\n");
+		return ret;
+	}
+
+	ret = pinctrl_enable(pctrl->pctl);
+	if (ret) {
+		dev_err(pctrl->dev, "pinctrl enable failed\n");
+		return ret;
+	}
+
+	ret = rzg2l_gpio_register(pctrl);
+	if (ret) {
+		dev_err(pctrl->dev, "failed to add GPIO chip: %i\n", ret);
+		return ret;
+	};
+
+	return 0;
+}
+
+static int rzg2l_pinctrl_probe(struct platform_device *pdev)
+{
+	struct rzg2l_pinctrl *pctrl;
+	int ret;
+
+	pctrl = devm_kzalloc(&pdev->dev, sizeof(*pctrl), GFP_KERNEL);
+	if (!pctrl)
+		return -ENOMEM;
+
+	pctrl->dev = &pdev->dev;
+
+	pctrl->data = of_device_get_match_data(&pdev->dev);
+	if (!pctrl->data)
+		return -EINVAL;
+
+	pctrl->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(pctrl->base))
+		return PTR_ERR(pctrl->base);
+
+	pctrl->clk = devm_clk_get(pctrl->dev, NULL);
+	if (IS_ERR(pctrl->clk)) {
+		ret = PTR_ERR(pctrl->clk);
+		dev_err(pctrl->dev, "failed to get GPIO clk : %i\n", ret);
+		return ret;
+	};
+
+	spin_lock_init(&pctrl->lock);
+
+	ret = rzg2l_pinctrl_register(pctrl);
+	if (ret)
+		return ret;
+
+	ret = clk_prepare_enable(pctrl->clk);
+	if (ret) {
+		dev_err(pctrl->dev, "failed to enable GPIO clk: %i\n", ret);
+		return ret;
+	};
+
+	platform_set_drvdata(pdev, pctrl);
+
+	dev_info(pctrl->dev, "%s support registered\n", DRV_NAME);
+	return 0;
+}
+
+static struct rzg2l_pinctrl_data r9a07g044_data = {
+	.port_pins = rzg2l_gpio_names,
+	.port_pin_configs = rzg2l_gpio_configs,
+	.dedicated_pins = rzg2l_dedicated_pins,
+	.n_port_pins = ARRAY_SIZE(rzg2l_gpio_names),
+	.n_dedicated_pins = ARRAY_SIZE(rzg2l_dedicated_pins),
+};
+
+static const struct of_device_id rzg2l_pinctrl_of_table[] = {
+	{
+		.compatible = "renesas,r9a07g044-pinctrl",
+		.data = &r9a07g044_data,
+	},
+	{ /* sentinel */ }
+};
+
+static struct platform_driver rzg2l_pinctrl_driver = {
+	.driver = {
+		.name = DRV_NAME,
+		.of_match_table = of_match_ptr(rzg2l_pinctrl_of_table),
+	},
+	.probe = rzg2l_pinctrl_probe,
+};
+
+static int __init rzg2l_pinctrl_init(void)
+{
+	return platform_driver_register(&rzg2l_pinctrl_driver);
+}
+core_initcall(rzg2l_pinctrl_init);
+
+MODULE_AUTHOR("Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>");
+MODULE_DESCRIPTION("Pin and gpio controller driver for RZ/G2L family");
+MODULE_LICENSE("GPL v2");
-- 
2.17.1


  parent reply	other threads:[~2021-07-12 19:44 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-12 19:44 [PATCH v2 0/5] pin and gpio controller driver for Renesas RZ/G2L Lad Prabhakar
2021-07-12 19:44 ` [PATCH v2 1/5] dt-bindings: pinctrl: renesas,rzg2l-pinctrl: Add DT bindings for RZ/G2L pinctrl Lad Prabhakar
2021-07-13 21:37   ` Rob Herring
2021-07-20 13:42   ` Geert Uytterhoeven
2021-07-30 12:36   ` Linus Walleij
2021-07-12 19:44 ` Lad Prabhakar [this message]
2021-07-20 14:56   ` [PATCH v2 2/5] pinctrl: renesas: Add RZ/G2L pin and gpio controller driver Geert Uytterhoeven
2021-07-21 13:07     ` Lad, Prabhakar
2021-07-12 19:44 ` [PATCH v2 3/5] drivers: clk: renesas: r9a07g044-cpg: Add GPIO clock and reset entries Lad Prabhakar
2021-07-13 13:37   ` Geert Uytterhoeven
2021-07-12 19:44 ` [PATCH v2 4/5] arm64: dts: renesas: r9a07g044: Add pinctrl node Lad Prabhakar
2021-07-12 19:44 ` [PATCH v2 5/5] arm64: dts: renesas: rzg2l-smarc: Add scif0 pins Lad Prabhakar
2021-07-13 11:18   ` Sergei Shtylyov
2021-07-13 14:34     ` Lad, Prabhakar

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