Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:1 as permitted sender) client-ip=2620:137:e000::3:1;
From:   Claudiu <claudiu.beznea@tuxon.dev>
To:     geert+renesas@glider.be, mturquette@baylibre.com, sboyd@kernel.org,
        robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
        conor+dt@kernel.org, ulf.hansson@linaro.org,
        linus.walleij@linaro.org, gregkh@linuxfoundation.org,
        jirislaby@kernel.org, magnus.damm@gmail.com,
        catalin.marinas@arm.com, will@kernel.org,
        prabhakar.mahadev-lad.rj@bp.renesas.com,
        biju.das.jz@bp.renesas.com, quic_bjorande@quicinc.com,
        arnd@arndb.de, konrad.dybcio@linaro.org, neil.armstrong@linaro.org,
        nfraprado@collabora.com, rafal@milecki.pl,
        wsa+renesas@sang-engineering.com
Cc:     linux-renesas-soc@vger.kernel.org, linux-clk@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-mmc@vger.kernel.org, linux-gpio@vger.kernel.org,
        linux-serial@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Subject: [PATCH 23/37] pinctrl: renesas: rzg2l: index all registers based on port offset
Date:   Tue, 12 Sep 2023 07:51:43 +0300
Message-Id: <20230912045157.177966-24-claudiu.beznea.uj@bp.renesas.com>
In-Reply-To: <20230912045157.177966-1-claudiu.beznea.uj@bp.renesas.com>
References: <20230912045157.177966-1-claudiu.beznea.uj@bp.renesas.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>

To get address that needs to be read/write for specific port
functionalities the P(), PM(), PMC(), PFC(), PIN(), IOLH() IEN(), ISEL()
macros are used. Some of these macros received as argument the hardware
port identifier, some hardware port offset address (e.g. ISEL() received
port identifier, IOLH() received port offset address). This makes hard to
extend the current driver for SoCs were port identifiers are not continuous
in memory map of pin controller. This is the case for RZ/G3S pin controller
were ports are mapped as follows:

port offset    port identifier
-----------    ---------------
0x20           P0
0x21           P5
0x22           P6
0x23           P11
0x24           P12
0x25           P13
0x26           P14
0x27           P15
0x28           P16
0x29           P17
0x2a           P18
0x30           P1
0x31           P2
0x32           P3
0x33           P4
0x34           P7
0x35           P8
0x36           P8
0x37           P10

To make this achievable change all the above macros used to get the address
of a port register for specific port functionality based on port hardware
address. Shortly, all the above macros will get as argument the port
offset address listed in the above table.

With this RZG2L_SINGLE_PIN_GET_PORT_OFFSET() and
RZG2L_PIN_ID_TO_PORT_OFFSET() were replaced by
RZG2L_PIN_CFG_TO_PORT_OFFSET(), RZG2L_SINGLE_PIN_GET_CFGS() and
RZG2L_GPIO_PORT_GET_CFGS() were replaced by RZG2L_PIN_CFG_TO_CAPS().

Also rzg2l_pinctrl_set_pfc_mode() don't need port argument anymore.
Also rzg2l_gpio_direction_input() and rzg2l_gpio_direction_output() don't
need to translate port and bit locally as this can be done by
rzg2l_gpio_set_direction().

To use the same naming for port, bit/pin and register offset the
port_offset variable names in different places was replaced by variable
named off and there is no need to initialize anymore cfg and bit in
different code places.

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
---
 drivers/pinctrl/renesas/pinctrl-rzg2l.c | 182 +++++++++++++-----------
 1 file changed, 95 insertions(+), 87 deletions(-)

diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
index 37cdfe4b04f9..6efdf4a424fd 100644
--- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c
+++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
@@ -74,8 +74,6 @@
  */
 #define RZG2L_GPIO_PORT_PACK(n, a, f)	(((n) << 28) | ((a) << 20) | (f))
 #define RZG2L_GPIO_PORT_GET_PINCNT(x)	(((x) & GENMASK(30, 28)) >> 28)
-#define RZG2L_GPIO_PORT_GET_INDEX(x)	(((x) & GENMASK(26, 20)) >> 20)
-#define RZG2L_GPIO_PORT_GET_CFGS(x)	((x) & GENMASK(19, 0))
 
 /*
  * BIT(31) indicates dedicated pin, p is the register index while
@@ -85,18 +83,21 @@
 #define RZG2L_SINGLE_PIN		BIT(31)
 #define RZG2L_SINGLE_PIN_PACK(p, b, f)	(RZG2L_SINGLE_PIN | \
 					 ((p) << 24) | ((b) << 20) | (f))
-#define RZG2L_SINGLE_PIN_GET_PORT_OFFSET(x)	(((x) & GENMASK(30, 24)) >> 24)
 #define RZG2L_SINGLE_PIN_GET_BIT(x)	(((x) & GENMASK(22, 20)) >> 20)
-#define RZG2L_SINGLE_PIN_GET_CFGS(x)	((x) & GENMASK(19, 0))
-
-#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 IOLH(n)			(0x1000 + (n) * 8)
-#define IEN(n)			(0x1800 + (n) * 8)
-#define ISEL(n)			(0x2c80 + (n) * 8)
+
+#define RZG2L_PIN_CFG_TO_CAPS(cfg)		((cfg) & GENMASK(19, 0))
+#define RZG2L_PIN_CFG_TO_PORT_OFFSET(cfg)	((cfg) & RZG2L_SINGLE_PIN ? \
+						(((cfg) & GENMASK(30, 24)) >> 24) : \
+						(((cfg) & GENMASK(26, 20)) >> 20))
+
+#define P(off)			(0x0000 + (off))
+#define PM(off)			(0x0100 + (off) * 2)
+#define PMC(off)		(0x0200 + (off))
+#define PFC(off)		(0x0400 + (off) * 4)
+#define PIN(off)		(0x0800 + (off))
+#define IOLH(off)		(0x1000 + (off) * 8)
+#define IEN(off)		(0x1800 + (off) * 8)
+#define ISEL(off)		(0x2C00 + (off) * 8)
 #define PWPR			(0x3014)
 #define SD_CH(n)		(0x3000 + (n) * 4)
 #define QSPI			(0x3008)
@@ -117,7 +118,6 @@
 #define PM_OUTPUT		0x2
 
 #define RZG2L_PIN_ID_TO_PORT(id)	((id) / RZG2L_PINS_PER_PORT)
-#define RZG2L_PIN_ID_TO_PORT_OFFSET(id)	(RZG2L_PIN_ID_TO_PORT(id) + 0x10)
 #define RZG2L_PIN_ID_TO_PIN(id)		((id) % RZG2L_PINS_PER_PORT)
 
 #define RZG2L_TINT_MAX_INTERRUPT	32
@@ -161,7 +161,7 @@ static const unsigned int iolh_groupa_mA[] = { 2, 4, 8, 12 };
 static const unsigned int iolh_groupb_oi[] = { 100, 66, 50, 33 };
 
 static void rzg2l_pinctrl_set_pfc_mode(struct rzg2l_pinctrl *pctrl,
-				       u8 port, u8 pin, u8 func)
+				       u8 pin, u8 off, u8 func)
 {
 	unsigned long flags;
 	u32 reg;
@@ -169,30 +169,30 @@ static void rzg2l_pinctrl_set_pfc_mode(struct rzg2l_pinctrl *pctrl,
 	spin_lock_irqsave(&pctrl->lock, flags);
 
 	/* Set pin to 'Non-use (Hi-Z input protection)'  */
-	reg = readw(pctrl->base + PM(port));
+	reg = readw(pctrl->base + PM(off));
 	reg &= ~(PM_MASK << (pin * 2));
-	writew(reg, pctrl->base + PM(port));
+	writew(reg, pctrl->base + PM(off));
 
 	/* Temporarily switch to GPIO mode with PMC register */
-	reg = readb(pctrl->base + PMC(port));
-	writeb(reg & ~BIT(pin), pctrl->base + PMC(port));
+	reg = readb(pctrl->base + PMC(off));
+	writeb(reg & ~BIT(pin), pctrl->base + PMC(off));
 
 	/* 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 */
-	reg = readl(pctrl->base + PFC(port));
+	reg = readl(pctrl->base + PFC(off));
 	reg &= ~(PFC_MASK << (pin * 4));
-	writel(reg | (func << (pin * 4)), pctrl->base + PFC(port));
+	writel(reg | (func << (pin * 4)), pctrl->base + PFC(off));
 
 	/* 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 */
-	reg = readb(pctrl->base + PMC(port));
-	writeb(reg | BIT(pin), pctrl->base + PMC(port));
+	reg = readb(pctrl->base + PMC(off));
+	writeb(reg | BIT(pin), pctrl->base + PMC(off));
 
 	spin_unlock_irqrestore(&pctrl->lock, flags);
 };
@@ -202,9 +202,11 @@ static int rzg2l_pinctrl_set_mux(struct pinctrl_dev *pctldev,
 				 unsigned int group_selector)
 {
 	struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
+	const struct pinctrl_pin_desc *pin_desc;
+	unsigned int i, *psel_val, *pin_data;
 	struct function_desc *func;
-	unsigned int i, *psel_val;
 	struct group_desc *group;
+	u32 port, pin, off;
 	int *pins;
 
 	func = pinmux_generic_get_function(pctldev, func_selector);
@@ -218,11 +220,17 @@ static int rzg2l_pinctrl_set_mux(struct pinctrl_dev *pctldev,
 	pins = group->pins;
 
 	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]);
+		pin_desc = &pctrl->desc.pins[pins[i]];
+		pin_data = pin_desc->drv_data;
+
+		port = RZG2L_PIN_ID_TO_PORT(pins[i]);
+		pin = RZG2L_PIN_ID_TO_PIN(pins[i]);
+		off = RZG2L_PIN_CFG_TO_PORT_OFFSET(*pin_data);
+
+		dev_dbg(pctrl->dev, "port:%u pin: %u off:%x PSEL:%u\n", port,
+			pin, off, psel_val[i]);
+
+		rzg2l_pinctrl_set_pfc_mode(pctrl, pin, off, psel_val[i]);
 	}
 
 	return 0;
@@ -468,14 +476,14 @@ static int rzg2l_validate_gpio_pin(struct rzg2l_pinctrl *pctrl,
 				   u32 cfg, u32 port, u8 bit)
 {
 	u8 pincount = RZG2L_GPIO_PORT_GET_PINCNT(cfg);
-	u32 port_index = RZG2L_GPIO_PORT_GET_INDEX(cfg);
+	u32 off = RZG2L_PIN_CFG_TO_PORT_OFFSET(cfg);
 	u32 data;
 
 	if (bit >= pincount || port >= pctrl->data->n_port_pins)
 		return -EINVAL;
 
 	data = pctrl->data->port_pin_configs[port];
-	if (port_index != RZG2L_GPIO_PORT_GET_INDEX(data))
+	if (off != RZG2L_PIN_CFG_TO_PORT_OFFSET(data))
 		return -EINVAL;
 
 	return 0;
@@ -525,20 +533,17 @@ static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev,
 	unsigned int arg = 0;
 	unsigned long flags;
 	void __iomem *addr;
-	u32 port_offset;
-	u32 cfg = 0;
-	u8 bit = 0;
+	u32 off, cfg;
+	u8 bit;
 
 	if (!pin_data)
 		return -EINVAL;
 
+	off = RZG2L_PIN_CFG_TO_PORT_OFFSET(*pin_data);
+	cfg = RZG2L_PIN_CFG_TO_CAPS(*pin_data);
 	if (*pin_data & RZG2L_SINGLE_PIN) {
-		port_offset = RZG2L_SINGLE_PIN_GET_PORT_OFFSET(*pin_data);
-		cfg = RZG2L_SINGLE_PIN_GET_CFGS(*pin_data);
 		bit = RZG2L_SINGLE_PIN_GET_BIT(*pin_data);
 	} else {
-		cfg = RZG2L_GPIO_PORT_GET_CFGS(*pin_data);
-		port_offset = RZG2L_PIN_ID_TO_PORT_OFFSET(_pin);
 		bit = RZG2L_PIN_ID_TO_PIN(_pin);
 
 		if (rzg2l_validate_gpio_pin(pctrl, *pin_data, RZG2L_PIN_ID_TO_PORT(_pin), bit))
@@ -549,7 +554,7 @@ static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev,
 	case PIN_CONFIG_INPUT_ENABLE:
 		if (!(cfg & PIN_CFG_IEN))
 			return -EINVAL;
-		arg = rzg2l_read_pin_config(pctrl, IEN(port_offset), bit, IEN_MASK);
+		arg = rzg2l_read_pin_config(pctrl, IEN(off), bit, IEN_MASK);
 		if (!arg)
 			return -EINVAL;
 		break;
@@ -579,7 +584,7 @@ static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev,
 		if (!(cfg & PIN_CFG_IOLH_A))
 			return -EINVAL;
 
-		index = rzg2l_read_pin_config(pctrl, IOLH(port_offset), bit, IOLH_MASK);
+		index = rzg2l_read_pin_config(pctrl, IOLH(off), bit, IOLH_MASK);
 		arg = iolh_groupa_mA[index];
 		break;
 	}
@@ -590,7 +595,7 @@ static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev,
 		if (!(cfg & PIN_CFG_IOLH_B))
 			return -EINVAL;
 
-		index = rzg2l_read_pin_config(pctrl, IOLH(port_offset), bit, IOLH_MASK);
+		index = rzg2l_read_pin_config(pctrl, IOLH(off), bit, IOLH_MASK);
 		arg = iolh_groupb_oi[index];
 		break;
 	}
@@ -615,21 +620,18 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev,
 	enum pin_config_param param;
 	unsigned long flags;
 	void __iomem *addr;
-	u32 port_offset;
 	unsigned int i;
-	u32 cfg = 0;
-	u8 bit = 0;
+	u32 cfg, off;
+	u8 bit;
 
 	if (!pin_data)
 		return -EINVAL;
 
+	off = RZG2L_PIN_CFG_TO_PORT_OFFSET(*pin_data);
+	cfg = RZG2L_PIN_CFG_TO_CAPS(*pin_data);
 	if (*pin_data & RZG2L_SINGLE_PIN) {
-		port_offset = RZG2L_SINGLE_PIN_GET_PORT_OFFSET(*pin_data);
-		cfg = RZG2L_SINGLE_PIN_GET_CFGS(*pin_data);
 		bit = RZG2L_SINGLE_PIN_GET_BIT(*pin_data);
 	} else {
-		cfg = RZG2L_GPIO_PORT_GET_CFGS(*pin_data);
-		port_offset = RZG2L_PIN_ID_TO_PORT_OFFSET(_pin);
 		bit = RZG2L_PIN_ID_TO_PIN(_pin);
 
 		if (rzg2l_validate_gpio_pin(pctrl, *pin_data, RZG2L_PIN_ID_TO_PORT(_pin), bit))
@@ -646,7 +648,7 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev,
 			if (!(cfg & PIN_CFG_IEN))
 				return -EINVAL;
 
-			rzg2l_rmw_pin_config(pctrl, IEN(port_offset), bit, IEN_MASK, !!arg);
+			rzg2l_rmw_pin_config(pctrl, IEN(off), bit, IEN_MASK, !!arg);
 			break;
 		}
 
@@ -687,7 +689,7 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev,
 			if (index >= ARRAY_SIZE(iolh_groupa_mA))
 				return -EINVAL;
 
-			rzg2l_rmw_pin_config(pctrl, IOLH(port_offset), bit, IOLH_MASK, index);
+			rzg2l_rmw_pin_config(pctrl, IOLH(off), bit, IOLH_MASK, index);
 			break;
 		}
 
@@ -705,7 +707,7 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev,
 			if (index >= ARRAY_SIZE(iolh_groupb_oi))
 				return -EINVAL;
 
-			rzg2l_rmw_pin_config(pctrl, IOLH(port_offset), bit, IOLH_MASK, index);
+			rzg2l_rmw_pin_config(pctrl, IOLH(off), bit, IOLH_MASK, index);
 			break;
 		}
 
@@ -795,7 +797,9 @@ static const struct pinconf_ops rzg2l_pinctrl_confops = {
 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);
+	const struct pinctrl_pin_desc *pin_desc = &pctrl->desc.pins[offset];
+	unsigned int *pin_data = pin_desc->drv_data;
+	u32 off = RZG2L_PIN_CFG_TO_PORT_OFFSET(*pin_data);
 	u8 bit = RZG2L_PIN_ID_TO_PIN(offset);
 	unsigned long flags;
 	u8 reg8;
@@ -808,28 +812,32 @@ static int rzg2l_gpio_request(struct gpio_chip *chip, unsigned int offset)
 	spin_lock_irqsave(&pctrl->lock, flags);
 
 	/* Select GPIO mode in PMC Register */
-	reg8 = readb(pctrl->base + PMC(port));
+	reg8 = readb(pctrl->base + PMC(off));
 	reg8 &= ~BIT(bit);
-	writeb(reg8, pctrl->base + PMC(port));
+	writeb(reg8, pctrl->base + PMC(off));
 
 	spin_unlock_irqrestore(&pctrl->lock, flags);
 
 	return 0;
 }
 
-static void rzg2l_gpio_set_direction(struct rzg2l_pinctrl *pctrl, u32 port,
-				     u8 bit, bool output)
+static void rzg2l_gpio_set_direction(struct rzg2l_pinctrl *pctrl, u32 offset,
+				     bool output)
 {
+	const struct pinctrl_pin_desc *pin_desc = &pctrl->desc.pins[offset];
+	unsigned int *pin_data = pin_desc->drv_data;
+	u32 off = RZG2L_PIN_CFG_TO_PORT_OFFSET(*pin_data);
+	u8 bit = RZG2L_PIN_ID_TO_PIN(offset);
 	unsigned long flags;
 	u16 reg16;
 
 	spin_lock_irqsave(&pctrl->lock, flags);
 
-	reg16 = readw(pctrl->base + PM(port));
+	reg16 = readw(pctrl->base + PM(off));
 	reg16 &= ~(PM_MASK << (bit * 2));
 
 	reg16 |= (output ? PM_OUTPUT : PM_INPUT) << (bit * 2);
-	writew(reg16, pctrl->base + PM(port));
+	writew(reg16, pctrl->base + PM(off));
 
 	spin_unlock_irqrestore(&pctrl->lock, flags);
 }
@@ -837,13 +845,15 @@ static void rzg2l_gpio_set_direction(struct rzg2l_pinctrl *pctrl, u32 port,
 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);
+	const struct pinctrl_pin_desc *pin_desc = &pctrl->desc.pins[offset];
+	unsigned int *pin_data = pin_desc->drv_data;
+	u32 off = RZG2L_PIN_CFG_TO_PORT_OFFSET(*pin_data);
 	u8 bit = RZG2L_PIN_ID_TO_PIN(offset);
 
-	if (!(readb(pctrl->base + PMC(port)) & BIT(bit))) {
+	if (!(readb(pctrl->base + PMC(off)) & BIT(bit))) {
 		u16 reg16;
 
-		reg16 = readw(pctrl->base + PM(port));
+		reg16 = readw(pctrl->base + PM(off));
 		reg16 = (reg16 >> (bit * 2)) & PM_MASK;
 		if (reg16 == PM_OUTPUT)
 			return GPIO_LINE_DIRECTION_OUT;
@@ -856,10 +866,8 @@ 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);
+	rzg2l_gpio_set_direction(pctrl, offset, false);
 
 	return 0;
 }
@@ -868,19 +876,21 @@ 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);
+	const struct pinctrl_pin_desc *pin_desc = &pctrl->desc.pins[offset];
+	unsigned int *pin_data = pin_desc->drv_data;
+	u32 off = RZG2L_PIN_CFG_TO_PORT_OFFSET(*pin_data);
 	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));
+	reg8 = readb(pctrl->base + P(off));
 
 	if (value)
-		writeb(reg8 | BIT(bit), pctrl->base + P(port));
+		writeb(reg8 | BIT(bit), pctrl->base + P(off));
 	else
-		writeb(reg8 & ~BIT(bit), pctrl->base + P(port));
+		writeb(reg8 & ~BIT(bit), pctrl->base + P(off));
 
 	spin_unlock_irqrestore(&pctrl->lock, flags);
 }
@@ -889,11 +899,9 @@ 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);
+	rzg2l_gpio_set_direction(pctrl, offset, true);
 
 	return 0;
 }
@@ -901,17 +909,19 @@ static int rzg2l_gpio_direction_output(struct gpio_chip *chip,
 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);
+	const struct pinctrl_pin_desc *pin_desc = &pctrl->desc.pins[offset];
+	unsigned int *pin_data = pin_desc->drv_data;
+	u32 off = RZG2L_PIN_CFG_TO_PORT_OFFSET(*pin_data);
 	u8 bit = RZG2L_PIN_ID_TO_PIN(offset);
 	u16 reg16;
 
-	reg16 = readw(pctrl->base + PM(port));
+	reg16 = readw(pctrl->base + PM(off));
 	reg16 = (reg16 >> (bit * 2)) & PM_MASK;
 
 	if (reg16 == PM_INPUT)
-		return !!(readb(pctrl->base + PIN(port)) & BIT(bit));
+		return !!(readb(pctrl->base + PIN(off)) & BIT(bit));
 	else if (reg16 == PM_OUTPUT)
-		return !!(readb(pctrl->base + P(port)) & BIT(bit));
+		return !!(readb(pctrl->base + P(off)) & BIT(bit));
 	else
 		return -EINVAL;
 }
@@ -1170,15 +1180,14 @@ static void rzg2l_gpio_irq_disable(struct irq_data *d)
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 	struct rzg2l_pinctrl *pctrl = container_of(gc, struct rzg2l_pinctrl, gpio_chip);
 	unsigned int hwirq = irqd_to_hwirq(d);
+	const struct pinctrl_pin_desc *pin_desc = &pctrl->desc.pins[hwirq];
+	unsigned int *pin_data = pin_desc->drv_data;
+	u32 off = RZG2L_PIN_CFG_TO_PORT_OFFSET(*pin_data);
+	u8 bit = RZG2L_PIN_ID_TO_PIN(hwirq);
 	unsigned long flags;
 	void __iomem *addr;
-	u32 port;
-	u8 bit;
 
-	port = RZG2L_PIN_ID_TO_PORT(hwirq);
-	bit = RZG2L_PIN_ID_TO_PIN(hwirq);
-
-	addr = pctrl->base + ISEL(port);
+	addr = pctrl->base + ISEL(off);
 	if (bit >= 4) {
 		bit -= 4;
 		addr += 4;
@@ -1197,17 +1206,16 @@ static void rzg2l_gpio_irq_enable(struct irq_data *d)
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
 	struct rzg2l_pinctrl *pctrl = container_of(gc, struct rzg2l_pinctrl, gpio_chip);
 	unsigned int hwirq = irqd_to_hwirq(d);
+	const struct pinctrl_pin_desc *pin_desc = &pctrl->desc.pins[hwirq];
+	unsigned int *pin_data = pin_desc->drv_data;
+	u32 off = RZG2L_PIN_CFG_TO_PORT_OFFSET(*pin_data);
+	u8 bit = RZG2L_PIN_ID_TO_PIN(hwirq);
 	unsigned long flags;
 	void __iomem *addr;
-	u32 port;
-	u8 bit;
 
 	gpiochip_enable_irq(gc, hwirq);
 
-	port = RZG2L_PIN_ID_TO_PORT(hwirq);
-	bit = RZG2L_PIN_ID_TO_PIN(hwirq);
-
-	addr = pctrl->base + ISEL(port);
+	addr = pctrl->base + ISEL(off);
 	if (bit >= 4) {
 		bit -= 4;
 		addr += 4;
-- 
2.39.2