pinctrl: realtek: add rtd1625 pinctrl driver

Add support for Realtek RTD1625 SoC using the realtek common pinctrl driver.

This patch introduces the RTK_PIN_CONFIG_V2 and RTK_PIN_CONFIG_I2C macros,
which are required to describe the specific register layout and electrical
features (such as slew rate and high VIL) of the RTD1625 pins.

Signed-off-by: Tzuyi Chang <tychang@realtek.com>
Signed-off-by: Yu-Chun Lin <eleanor.lin@realtek.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>

drivers/pinctrl/realtek/Kconfig

@@ -22,3 +22,17 @@ config PINCTRL_RTD1315E
 	tristate "Realtek DHC 1315E pin controller driver"
 	depends on PINCTRL_RTD
 	default y
+
+config PINCTRL_RTD1625
+	tristate "Realtek DHC 1625 pin controller driver"
+	depends on PINCTRL_RTD
+	default y
+	help
+	  This driver enables support for the pin controller on the Realtek
+	  RTD1625 SoCs.
+
+	  It implements pin multiplexing for function selection and GPIO enabling.
+	  It also utilizes the generic pin configuration interface to manage
+	  electrical properties for both individual pins and pin groups.
+
+	  Say Y here to enable the pinctrl driver for RTD1625 SoCs

drivers/pinctrl/realtek/Makefile

@@ -4,3 +4,4 @@ obj-$(CONFIG_PINCTRL_RTD)		+= pinctrl-rtd.o
 obj-$(CONFIG_PINCTRL_RTD1619B)		+= pinctrl-rtd1619b.o
 obj-$(CONFIG_PINCTRL_RTD1319D)		+= pinctrl-rtd1319d.o
 obj-$(CONFIG_PINCTRL_RTD1315E)		+= pinctrl-rtd1315e.o
+obj-$(CONFIG_PINCTRL_RTD1625)		+= pinctrl-rtd1625.o

drivers/pinctrl/realtek/pinctrl-rtd.h

@@ -98,6 +98,40 @@ struct rtd_pin_reg_list {
 		.curr_type = _curr_type, \
 	}
 
+#define RTK_PIN_CONFIG_V2(_name, _reg_off, _base_bit, _pud_en_off, \
+			  _pud_sel_off, _curr_off, _smt_off, _pow_off, _input_volt_off, \
+			  _curr_type) \
+	{ \
+		.name = # _name, \
+		.reg_offset = _reg_off, \
+		.base_bit = _base_bit, \
+		.pud_en_offset = _pud_en_off, \
+		.pud_sel_offset = _pud_sel_off, \
+		.curr_offset = _curr_off, \
+		.smt_offset = _smt_off, \
+		.power_offset = _pow_off, \
+		.input_volt_offset = _input_volt_off, \
+		.curr_type = _curr_type, \
+	}
+
+#define RTK_PIN_CONFIG_I2C(_name, _reg_off, _base_bit, _pud_en_off, \
+			   _pud_sel_off, _curr_off, _smt_off, _hvil_off, _sr_off, _pow_off, \
+			   _input_volt_off, _curr_type) \
+	{ \
+		.name = # _name, \
+		.reg_offset = _reg_off, \
+		.base_bit = _base_bit, \
+		.pud_en_offset = _pud_en_off, \
+		.pud_sel_offset = _pud_sel_off, \
+		.curr_offset = _curr_off, \
+		.smt_offset = _smt_off, \
+		.hvil_offset = _hvil_off, \
+		.slew_rate_offset = _sr_off, \
+		.power_offset = _pow_off, \
+		.input_volt_offset = _input_volt_off, \
+		.curr_type = _curr_type, \
+	}
+
 #define RTK_PIN_SCONFIG(_name, _reg_off, _d_offset, _d_mask, \
 			_n_offset, _n_mask, _p_offset, _p_mask) \
 	{ \