[PATCH v3 3/3] pinctrl: renesas: rzt2h: Add support for RZ/N2H SoC

From: Prabhakar
Date: Mon Jul 07 2025 - 10:19:51 EST


From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>

The RZ/N2H (R9A09G087) SoC from Renesas shares a similar pin controller
architecture with the RZ/T2H (R9A09G077) SoC, differing primarily in the
number of supported pins-576 on RZ/N2H versus 729 on RZ/T2H.

Add the necessary pin configuration data and compatible string to enable
support for the RZ/N2H SoC in the RZ/T2H pinctrl driver.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
---
v2->v3:
- No changes.

v1->v2:
- New patch.
---
drivers/pinctrl/renesas/Kconfig | 3 ++-
drivers/pinctrl/renesas/pinctrl-rzt2h.c | 17 +++++++++++++++++
2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/renesas/Kconfig b/drivers/pinctrl/renesas/Kconfig
index 0d0920f4678b..8cbd79a13414 100644
--- a/drivers/pinctrl/renesas/Kconfig
+++ b/drivers/pinctrl/renesas/Kconfig
@@ -45,6 +45,7 @@ config PINCTRL_RENESAS
select PINCTRL_RZG2L if ARCH_R9A09G056
select PINCTRL_RZG2L if ARCH_R9A09G057
select PINCTRL_RZT2H if ARCH_R9A09G077
+ select PINCTRL_RZT2H if ARCH_R9A09G087
select PINCTRL_PFC_SH7203 if CPU_SUBTYPE_SH7203
select PINCTRL_PFC_SH7264 if CPU_SUBTYPE_SH7264
select PINCTRL_PFC_SH7269 if CPU_SUBTYPE_SH7269
@@ -304,7 +305,7 @@ config PINCTRL_RZN1
This selects pinctrl driver for Renesas RZ/N1 devices.

config PINCTRL_RZT2H
- bool "pin control support for RZ/T2H" if COMPILE_TEST
+ bool "pin control support for RZ/N2H and RZ/T2H" if COMPILE_TEST
depends on 64BIT && OF
select GPIOLIB
select GENERIC_PINCTRL_GROUPS
diff --git a/drivers/pinctrl/renesas/pinctrl-rzt2h.c b/drivers/pinctrl/renesas/pinctrl-rzt2h.c
index 877f6d00830f..55c64d74cb54 100644
--- a/drivers/pinctrl/renesas/pinctrl-rzt2h.c
+++ b/drivers/pinctrl/renesas/pinctrl-rzt2h.c
@@ -764,6 +764,12 @@ static const u8 r9a09g077_gpio_configs[] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f,
};

+static const u8 r9a09g087_gpio_configs[] = {
+ 0x1f, 0xff, 0xff, 0x1f, 0, 0xfe, 0xff, 0, 0x7e, 0xf0, 0xff, 0x1,
+ 0xff, 0xff, 0xff, 0, 0xe0, 0xff, 0xff, 0, 0xff, 0xff, 0xff, 0x1,
+ 0xe0, 0xff, 0xff, 0x7f, 0, 0xfe, 0xff, 0x7f, 0, 0xfc, 0x7f,
+};
+
static struct rzt2h_pinctrl_data r9a09g077_data = {
.port_pins = rzt2h_gpio_names,
.n_port_pins = ARRAY_SIZE(r9a09g077_gpio_configs) * RZT2H_PINS_PER_PORT,
@@ -771,11 +777,22 @@ static struct rzt2h_pinctrl_data r9a09g077_data = {
.n_ports = ARRAY_SIZE(r9a09g077_gpio_configs),
};

+static struct rzt2h_pinctrl_data r9a09g087_data = {
+ .port_pins = rzt2h_gpio_names,
+ .n_port_pins = ARRAY_SIZE(r9a09g087_gpio_configs) * RZT2H_PINS_PER_PORT,
+ .port_pin_configs = r9a09g087_gpio_configs,
+ .n_ports = ARRAY_SIZE(r9a09g087_gpio_configs),
+};
+
static const struct of_device_id rzt2h_pinctrl_of_table[] = {
{
.compatible = "renesas,r9a09g077-pinctrl",
.data = &r9a09g077_data,
},
+ {
+ .compatible = "renesas,r9a09g087-pinctrl",
+ .data = &r9a09g087_data,
+ },
{ /* sentinel */ }
};

--
2.49.0