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[PATCH v4 3/3] pinctrl: renesas: rzt2h: Add support for RZ/N2H SoC

Prabhakar posted 3 patches 6 months, 1 week ago
[PATCH v4 3/3] pinctrl: renesas: rzt2h: Add support for RZ/N2H SoC
Posted by Prabhakar 6 months, 1 week ago 
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

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@bp.renesas.com>
---
v3->v4:
- No changes.

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 */ }
 };
 
-- 
2.50.1
Re: [PATCH v4 3/3] pinctrl: renesas: rzt2h: Add support for RZ/N2H SoC
Posted by Geert Uytterhoeven 6 months ago 
Hi Prabhakar,

On Fri, 1 Aug 2025 at 17:46, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> 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@bp.renesas.com>

Thanks for your patch!

> --- a/drivers/pinctrl/renesas/Kconfig
> +++ b/drivers/pinctrl/renesas/Kconfig
> @@ -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

Do you plan to update this for each new SoC?

>         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,

Please always use 0xXX for consistent formatting.

> +};

The rest LGTM, so
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
Re: [PATCH v4 3/3] pinctrl: renesas: rzt2h: Add support for RZ/N2H SoC
Posted by Lad, Prabhakar 6 months ago 
Hi Geert,

Thank you for the review.

On Wed, Aug 6, 2025 at 3:49 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>
> Hi Prabhakar,
>
> On Fri, 1 Aug 2025 at 17:46, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> >
> > 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@bp.renesas.com>
>
> Thanks for your patch!
>
> > --- a/drivers/pinctrl/renesas/Kconfig
> > +++ b/drivers/pinctrl/renesas/Kconfig
> > @@ -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
>
> Do you plan to update this for each new SoC?
>
Maybe I'll have this change done in patch 2/3.

> >         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,
>
> Please always use 0xXX for consistent formatting.
>
Sure, I'll use the above format.

Cheers,
Prabhakar

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