[PATCH v7] arm64: dts: Add spi bus dts

[Nicolas Boichat]

On Mon, Aug 31, 2015 at 9:44 PM, Leilk Liu <leilk.liu at mediatek.com> wrote:
> This patch adds MT8173 spi bus controllers into device tree.

The corresponding SPI driver has already been merged in
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git .

> Signed-off-by: Leilk Liu <leilk.liu at mediatek.com>

Reviewed-and-Tested-by: Nicolas Boichat <drinkcat at chromium.org>

> ---
> Change in this patch:
> 1. fix spi clock flow usage error.
> ---
>  arch/arm64/boot/dts/mediatek/mt8173-evb.dts | 18 ++++++++++++++++++
>  arch/arm64/boot/dts/mediatek/mt8173.dtsi    | 13 +++++++++++++
>  2 files changed, 31 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt8173-evb.dts b/arch/arm64/boot/dts/mediatek/mt8173-evb.dts
> index 4be66ca..811cb76 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8173-evb.dts
> +++ b/arch/arm64/boot/dts/mediatek/mt8173-evb.dts
> @@ -387,6 +387,24 @@
>         };
>  };
>
> +&pio {
> +       spi_pins_a: spi0 {
> +               pins_spi {
> +                       pinmux = <MT8173_PIN_69_SPI_CK__FUNC_SPI_CK_0_>,
> +                               <MT8173_PIN_70_SPI_MI__FUNC_SPI_MI_0_>,
> +                               <MT8173_PIN_71_SPI_MO__FUNC_SPI_MO_0_>,
> +                               <MT8173_PIN_72_SPI_CS__FUNC_SPI_CS_0_>;
> +               };
> +       };
> +};
> +
> +&spi {
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&spi_pins_a>;
> +       mediatek,pad-select = <0>;
> +       status = "okay";
> +};
> +
>  &uart0 {
>         status = "okay";
>  };
> diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> index d18ee42..fcb4860 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> @@ -365,6 +365,19 @@
>                         status = "disabled";
>                 };
>
> +               spi: spi at 1100a000 {
> +                       compatible = "mediatek,mt8173-spi";
> +                       #address-cells = <1>;
> +                       #size-cells = <0>;
> +                       reg = <0 0x1100a000 0 0x1000>;
> +                       interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_LOW>;
> +                       clocks = <&topckgen CLK_TOP_SYSPLL3_D2>,
> +                                <&topckgen CLK_TOP_SPI_SEL>,
> +                                <&pericfg CLK_PERI_SPI0>;
> +                       clock-names = "parent-clk", "sel-clk", "spi-clk";
> +                       status = "disabled";
> +               };
> +
>                 i2c3: i2c3 at 11010000 {
>                         compatible = "mediatek,mt8173-i2c";
>                         reg = <0 0x11010000 0 0x70>,
> --
> 1.8.1.1.dirty
>
>
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