[PATCH v2 1/2] arm64: dts: renesas: r8a77970: add I2C support

[Geert Uytterhoeven]

On Mon, Feb 26, 2018 at 9:54 PM, Sergei Shtylyov
<sergei.shtylyov at cogentembedded.com> wrote:
> Define the generic R8A77970 parts of the I2C[0-4] device node.
>
> Based on the original (and large) patch by Daisuke Matsushita
> <daisuke.matsushita.ns at hitachi.com>.
>
> Signed-off-by: Vladimir Barinov <vladimir.barinov at cogentembedded.com>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov at cogentembedded.com>
>
> ---
> Changes in version 2:
> - made  use of  the SYSC power domain #define's;
> - moved the I2C nodes before HSCIF nodes.

auto-repeat below...

>  arch/arm64/boot/dts/renesas/r8a77970.dtsi |   88 ++++++++++++++++++++++++++++++
>  1 file changed, 88 insertions(+)
>
> Index: renesas/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> ===================================================================
> --- renesas.orig/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> +++ renesas/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> @@ -19,6 +19,14 @@
>         #address-cells = <2>;
>         #size-cells = <2>;
>
> +       aliases {
> +               i2c0 = &i2c0;
> +               i2c1 = &i2c1;
> +               i2c2 = &i2c2;
> +               i2c3 = &i2c3;
> +               i2c4 = &i2c4;
> +       };
> +
>         psci {
>                 compatible = "arm,psci-1.0", "arm,psci-0.2";
>                 method = "smc";
> @@ -338,6 +346,86 @@
>                                <&ipmmu_ds1 22>, <&ipmmu_ds1 23>;
>                 };
>
> +               i2c0: i2c at e6500000 {
> +                       compatible = "renesas,i2c-r8a77970",
> +                                    "renesas,rcar-gen3-i2c";
> +                       reg = <0 0xe6500000 0 0x40>;
> +                       interrupts = <GIC_SPI 287 IRQ_TYPE_LEVEL_HIGH>;
> +                       clocks = <&cpg CPG_MOD 931>;
> +                       power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
> +                       resets = <&cpg 931>;
> +                       dmas = <&dmac1 0x91>, <&dmac1 0x90>;

Can't all five i2c interfaces be used with both dmac1 and dmac2?

With that fixed:
Reviewed-by: Geert Uytterhoeven <geert+renesas at glider.be>

Gr{oetje,eeting}s,

                        Geert

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