Hi Wolfram,
On Wed, Dec 23, 2020 at 6:25 PM Wolfram Sang
<wsa+renesas@xxxxxxxxxxxxxxxxxxxx> wrote:
> From: Koji Matsuoka <koji.matsuoka.xm@xxxxxxxxxxx>
>
> Add I2C devicetree description to V3U
>
> Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@xxxxxxxxxxx>
> [wsa: rebased and double checked]
> Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> --- a/arch/arm64/boot/dts/renesas/r8a779a0.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r8a779a0.dtsi
> @@ -14,6 +14,16 @@ / {
> #address-cells = <2>;
> #size-cells = <2>;
>
> + aliases {
> + i2c0 = &i2c0;
> + i2c1 = &i2c1;
> + i2c2 = &i2c2;
> + i2c3 = &i2c3;
> + i2c4 = &i2c4;
> + i2c5 = &i2c5;
> + i2c6 = &i2c6;
> + };
Do we need the i2c aliases? ;-)
> @@ -115,6 +125,118 @@ sysc: system-controller@e6180000 {
> #power-domain-cells = <1>;
> };
>
> + i2c0: i2c@e6500000 {
> + compatible = "renesas,i2c-r8a779a0",
> + "renesas,rcar-gen3-i2c";
> + reg = <0 0xe6500000 0 0x40>;
> + interrupts = <GIC_SPI 238 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&cpg CPG_MOD 518>;
> + power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>;
> + resets = <&cpg 518>;
> + dmas = <&dmac1 0x91>, <&dmac1 0x90>;
> + dma-names = "tx", "rx";
Might be wise to leave out the DMA properties until we have verified that
DMA works?
> + i2c-scl-internal-delay-ns = <110>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + status = "disabled";
> + };
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
