From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Add USER LED0-LED8, which are available on RZ/T2H EVK.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
.../dts/renesas/r9a09g077m44-rzt2h-evk.dts | 51 +++++++++++++++++++
1 file changed, 51 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
index 486584fefead..a0cf01978f15 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
+++ b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
@@ -7,10 +7,61 @@
/dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/renesas,r9a09g077-pinctrl.h>
+
#include "r9a09g077m44.dtsi"
#include "rzt2h-n2h-evk-common.dtsi"
/ {
model = "Renesas RZ/T2H EVK Board based on r9a09g077m44";
compatible = "renesas,rzt2h-evk", "renesas,r9a09g077m44", "renesas,r9a09g077";
+
+ leds {
+ compatible = "gpio-leds";
+
+ led0 {
+ /* SW8-9: ON, SW8-10: OFF */
+ gpios = <&pinctrl RZT2H_GPIO(23, 1) GPIO_ACTIVE_LOW>;
+ };
+
+ led1 {
+ /* SW5-1: OFF, SW5-2: ON */
+ gpios = <&pinctrl RZT2H_GPIO(32, 2) GPIO_ACTIVE_LOW>;
+ };
+
+ led2 {
+ gpios = <&pinctrl RZT2H_GPIO(6, 7) GPIO_ACTIVE_LOW>;
+ };
+
+ led3 {
+ /* SW2-3: OFF */
+ gpios = <&pinctrl RZT2H_GPIO(8, 5) GPIO_ACTIVE_LOW>;
+ };
+
+ led4 {
+ /* SW8-3: ON, SW8-4: OFF */
+ gpios = <&pinctrl RZT2H_GPIO(18, 0) GPIO_ACTIVE_LOW>;
+ };
+
+ led5 {
+ /* SW8-1: ON, SW8-2: OFF */
+ gpios = <&pinctrl RZT2H_GPIO(18, 1) GPIO_ACTIVE_LOW>;
+ };
+
+ led6 {
+ /* SW5-9: OFF, SW5-10: ON */
+ gpios = <&pinctrl RZT2H_GPIO(22, 7) GPIO_ACTIVE_LOW>;
+ };
+
+ led7 {
+ /* SW5-7: OFF, SW5-8: ON */
+ gpios = <&pinctrl RZT2H_GPIO(23, 0) GPIO_ACTIVE_LOW>;
+ };
+
+ led8 {
+ /* SW7-5: OFF, SW7-6: ON */
+ gpios = <&pinctrl RZT2H_GPIO(23, 5) GPIO_ACTIVE_LOW>;
+ };
+ };
};
--
2.50.1Hi Prabhakar,
Thanks for your patch!
On Tue, 12 Aug 2025 at 22:03, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> Add USER LED0-LED8, which are available on RZ/T2H EVK.
According to the schematics, only the first four are user LEDs?
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> --- a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
> +++ b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
> @@ -7,10 +7,61 @@
>
> /dts-v1/;
>
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/pinctrl/renesas,r9a09g077-pinctrl.h>
> +
> #include "r9a09g077m44.dtsi"
> #include "rzt2h-n2h-evk-common.dtsi"
>
> / {
> model = "Renesas RZ/T2H EVK Board based on r9a09g077m44";
> compatible = "renesas,rzt2h-evk", "renesas,r9a09g077m44", "renesas,r9a09g077";
> +
> + leds {
> + compatible = "gpio-leds";
> +
> + led0 {
led-0
Cfr. Documentation/devicetree/bindings/leds/leds-gpio.yaml:
# The first form is preferred, but fall back to just 'led' anywhere in the
# node name to at least catch some child nodes.
"(^led-[0-9a-f]$|led)":
> + /* SW8-9: ON, SW8-10: OFF */
> + gpios = <&pinctrl RZT2H_GPIO(23, 1) GPIO_ACTIVE_LOW>;
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_DEBUG;
function-enumerator = <0>;
> + };
> +
> + led1 {
> + /* SW5-1: OFF, SW5-2: ON */
> + gpios = <&pinctrl RZT2H_GPIO(32, 2) GPIO_ACTIVE_LOW>;
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_DEBUG;
function-enumerator = <1>;
> + };
> +
> + led2 {
> + gpios = <&pinctrl RZT2H_GPIO(6, 7) GPIO_ACTIVE_LOW>;
color = <LED_COLOR_ID_YELLOW>;
function = LED_FUNCTION_DEBUG;
function-enumerator = <2>;
> + };
> +
> + led3 {
> + /* SW2-3: OFF */
> + gpios = <&pinctrl RZT2H_GPIO(8, 5) GPIO_ACTIVE_LOW>;
color = <LED_COLOR_ID_RED>;
function = LED_FUNCTION_DEBUG;
function-enumerator = <3>;
> + };
> +
> + led4 {
> + /* SW8-3: ON, SW8-4: OFF */
> + gpios = <&pinctrl RZT2H_GPIO(18, 0) GPIO_ACTIVE_LOW>;
Schematics say "run", so perhaps LED_FUNCTION_ACTIVITY?
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_ACTIVITY;
> + };
> +
> + led5 {
> + /* SW8-1: ON, SW8-2: OFF */
> + gpios = <&pinctrl RZT2H_GPIO(18, 1) GPIO_ACTIVE_LOW>;
Schematics say "error", so
color = <LED_COLOR_ID_RED>;
function = LED_FUNCTION_FAULT;
> + };
> +
> + led6 {
> + /* SW5-9: OFF, SW5-10: ON */
> + gpios = <&pinctrl RZT2H_GPIO(22, 7) GPIO_ACTIVE_LOW>;
Schematics says Ether-Cat link-activity, so LED_FUNCTION_LAN?
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_LAN;
function-enumerator = <0>;
> + };
> +
> + led7 {
> + /* SW5-7: OFF, SW5-8: ON */
> + gpios = <&pinctrl RZT2H_GPIO(23, 0) GPIO_ACTIVE_LOW>;
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_LAN;
function-enumerator = <1>;
> + };
> +
> + led8 {
> + /* SW7-5: OFF, SW7-6: ON */
> + gpios = <&pinctrl RZT2H_GPIO(23, 5) GPIO_ACTIVE_LOW>;
color = <LED_COLOR_ID_GREEN>;
function = LED_FUNCTION_LAN;
function-enumerator = <2>;
> + };
> + };
> };
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
Hi Geert,
Thank you for the review.
On Mon, Aug 18, 2025 at 2:15 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
>
> Hi Prabhakar,
>
> Thanks for your patch!
>
> On Tue, 12 Aug 2025 at 22:03, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> >
> > Add USER LED0-LED8, which are available on RZ/T2H EVK.
>
> According to the schematics, only the first four are user LEDs?
>
As per [0] user manual Table 7-4, LEDs4-8 can be used as USER LEDs or
for Ethercat Slave. Since ESC is not enabled I haven't added any
#ifdefs.
[0] https://www.renesas.com/en/document/mat/rzt2h-evaluation-board-kit-users-manual?r=25567073
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> > --- a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
> > +++ b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
> > @@ -7,10 +7,61 @@
> >
> > /dts-v1/;
> >
> > +#include <dt-bindings/gpio/gpio.h>
> > +#include <dt-bindings/pinctrl/renesas,r9a09g077-pinctrl.h>
> > +
> > #include "r9a09g077m44.dtsi"
> > #include "rzt2h-n2h-evk-common.dtsi"
> >
> > / {
> > model = "Renesas RZ/T2H EVK Board based on r9a09g077m44";
> > compatible = "renesas,rzt2h-evk", "renesas,r9a09g077m44", "renesas,r9a09g077";
> > +
> > + leds {
> > + compatible = "gpio-leds";
> > +
> > + led0 {
>
> led-0
>
Ok.
> Cfr. Documentation/devicetree/bindings/leds/leds-gpio.yaml:
>
Thanks for the pointer.
> # The first form is preferred, but fall back to just 'led' anywhere in the
> # node name to at least catch some child nodes.
> "(^led-[0-9a-f]$|led)":
>
> > + /* SW8-9: ON, SW8-10: OFF */
> > + gpios = <&pinctrl RZT2H_GPIO(23, 1) GPIO_ACTIVE_LOW>;
>
> color = <LED_COLOR_ID_GREEN>;
> function = LED_FUNCTION_DEBUG;
> function-enumerator = <0>;
>
> > + };
> > +
> > + led1 {
> > + /* SW5-1: OFF, SW5-2: ON */
> > + gpios = <&pinctrl RZT2H_GPIO(32, 2) GPIO_ACTIVE_LOW>;
>
> color = <LED_COLOR_ID_GREEN>;
> function = LED_FUNCTION_DEBUG;
> function-enumerator = <1>;
>
> > + };
> > +
> > + led2 {
> > + gpios = <&pinctrl RZT2H_GPIO(6, 7) GPIO_ACTIVE_LOW>;
>
> color = <LED_COLOR_ID_YELLOW>;
> function = LED_FUNCTION_DEBUG;
> function-enumerator = <2>;
>
> > + };
> > +
> > + led3 {
> > + /* SW2-3: OFF */
> > + gpios = <&pinctrl RZT2H_GPIO(8, 5) GPIO_ACTIVE_LOW>;
>
> color = <LED_COLOR_ID_RED>;
> function = LED_FUNCTION_DEBUG;
> function-enumerator = <3>;
>
> > + };
> > +
> > + led4 {
> > + /* SW8-3: ON, SW8-4: OFF */
> > + gpios = <&pinctrl RZT2H_GPIO(18, 0) GPIO_ACTIVE_LOW>;
>
> Schematics say "run", so perhaps LED_FUNCTION_ACTIVITY?
>
> color = <LED_COLOR_ID_GREEN>;
> function = LED_FUNCTION_ACTIVITY;
>
Perhaps I'll have LED_FUNCTION_DEBUG for LEDs4-8 as currently they are
used as USER LEDs and function-enumerator = 4/5/6/7?
Cheers,
Prabhakar
> > + };
> > +
> > + led5 {
> > + /* SW8-1: ON, SW8-2: OFF */
> > + gpios = <&pinctrl RZT2H_GPIO(18, 1) GPIO_ACTIVE_LOW>;
>
> Schematics say "error", so
>
> color = <LED_COLOR_ID_RED>;
> function = LED_FUNCTION_FAULT;
>
> > + };
> > +
> > + led6 {
> > + /* SW5-9: OFF, SW5-10: ON */
> > + gpios = <&pinctrl RZT2H_GPIO(22, 7) GPIO_ACTIVE_LOW>;
>
> Schematics says Ether-Cat link-activity, so LED_FUNCTION_LAN?
>
> color = <LED_COLOR_ID_GREEN>;
> function = LED_FUNCTION_LAN;
> function-enumerator = <0>;
>
> > + };
> > +
> > + led7 {
> > + /* SW5-7: OFF, SW5-8: ON */
> > + gpios = <&pinctrl RZT2H_GPIO(23, 0) GPIO_ACTIVE_LOW>;
>
> color = <LED_COLOR_ID_GREEN>;
> function = LED_FUNCTION_LAN;
> function-enumerator = <1>;
>
> > + };
> > +
> > + led8 {
> > + /* SW7-5: OFF, SW7-6: ON */
> > + gpios = <&pinctrl RZT2H_GPIO(23, 5) GPIO_ACTIVE_LOW>;
>
> color = <LED_COLOR_ID_GREEN>;
> function = LED_FUNCTION_LAN;
> function-enumerator = <2>;
>
> > + };
> > + };
> > };
>
> 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
Hi Prabhakar,
On Mon, 18 Aug 2025 at 15:40, Lad, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> On Mon, Aug 18, 2025 at 2:15 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> > On Tue, 12 Aug 2025 at 22:03, Prabhakar <prabhakar.csengg@gmail.com> wrote:
> > > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > >
> > > Add USER LED0-LED8, which are available on RZ/T2H EVK.
> >
> > According to the schematics, only the first four are user LEDs?
> >
> As per [0] user manual Table 7-4, LEDs4-8 can be used as USER LEDs or
> for Ethercat Slave. Since ESC is not enabled I haven't added any
> #ifdefs.
OK
> [0] https://www.renesas.com/en/document/mat/rzt2h-evaluation-board-kit-users-manual?r=25567073
>
> > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> >
> > > --- a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
> > > +++ b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
> Perhaps I'll have LED_FUNCTION_DEBUG for LEDs4-8 as currently they are
> used as USER LEDs and function-enumerator = 4/5/6/7?
That sounds fine, thanks!
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
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