Re: [PATCH v2 5/7] arm64: dts: renesas: white-hawk-cpu: Add DP output support

From: Geert Uytterhoeven
Date: Thu Dec 01 2022 - 05:03:22 EST


Hi Tomi,

On Wed, Nov 23, 2022 at 8:00 AM Tomi Valkeinen
<tomi.valkeinen+renesas@xxxxxxxxxxxxxxxx> wrote:
> Add DT nodes needed for the mini DP connector. The DP is driven by
> sn65dsi86, which in turn gets the pixel data from the SoC via DSI.
>
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@xxxxxxxxxxxxxxxx>
> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>

Thanks for your patch!

Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
i.e. will queue in renesas-devel for v6.3, with the mini-dp-con node
moved up.

> --- a/arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi
> @@ -97,6 +97,15 @@ memory@600000000 {
> reg = <0x6 0x00000000 0x1 0x00000000>;
> };
>
> + reg_1p2v: regulator-1p2v {
> + compatible = "regulator-fixed";
> + regulator-name = "fixed-1.2V";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> +
> reg_1p8v: regulator-1p8v {
> compatible = "regulator-fixed";
> regulator-name = "fixed-1.8V";
> @@ -114,6 +123,24 @@ reg_3p3v: regulator-3p3v {
> regulator-boot-on;
> regulator-always-on;
> };
> +
> + mini-dp-con {
> + compatible = "dp-connector";
> + label = "CN5";
> + type = "mini";
> +
> + port {
> + mini_dp_con_in: endpoint {
> + remote-endpoint = <&sn65dsi86_out>;
> + };
> + };
> + };

Moving up while applying to preserve sort order...

> +
> + sn65dsi86_refclk: clk-x6 {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <38400000>;
> + };
> };
>
> &avb0 {

> @@ -172,6 +216,51 @@ eeprom@50 {
> };
> };
>
> +&i2c1 {
> + pinctrl-0 = <&i2c1_pins>;
> + pinctrl-names = "default";
> +
> + status = "okay";
> + clock-frequency = <400000>;
> +
> + bridge@2c {

Ideally, this needs pinctrl for the intc_ex irq0 pin.
Unfortunately[1] is still in limbo as the naming of the alternate pins
is inconsistent.

> + compatible = "ti,sn65dsi86";
> + reg = <0x2c>;
> +
> + clocks = <&sn65dsi86_refclk>;
> + clock-names = "refclk";
> +
> + interrupt-parent = <&intc_ex>;
> + interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
> +
> + enable-gpios = <&gpio1 26 GPIO_ACTIVE_HIGH>;
> +
> + vccio-supply = <&reg_1p8v>;
> + vpll-supply = <&reg_1p8v>;
> + vcca-supply = <&reg_1p2v>;
> + vcc-supply = <&reg_1p2v>;
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + sn65dsi86_in: endpoint {
> + remote-endpoint = <&dsi0_out>;
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> + sn65dsi86_out: endpoint {
> + remote-endpoint = <&mini_dp_con_in>;
> + };
> + };
> + };
> + };
> +};
> +
> &mmc0 {
> pinctrl-0 = <&mmc_pins>;
> pinctrl-1 = <&mmc_pins>;

[1] "[PATCH/RFC] pinctrl: renesas: r8a779g0: Add INTC-EX pins, groups,
and function"
https://lore.kernel.org/all/28fe05d41bea5a03ea6c8434f5a4fb6c80b48867.1664368425.git.geert+renesas@xxxxxxxxx

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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