25.11.2021 01:00, Dmitry Osipenko пишет:
> Add S/PDIF node to Tegra20 device-tree. It's needed for enabling HDMI
> audio support.
>
> Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
> ---
> arch/arm/boot/dts/tegra20.dtsi | 18 ++++++++++++++++++
> 1 file changed, 18 insertions(+)
>
> diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
> index 63c2c2f8c0ce..799da7dc929b 100644
> --- a/arch/arm/boot/dts/tegra20.dtsi
> +++ b/arch/arm/boot/dts/tegra20.dtsi
> @@ -197,6 +197,7 @@ hdmi@54280000 {
> reset-names = "hdmi";
> power-domains = <&pd_core>;
> operating-points-v2 = <&hdmi_dvfs_opp_table>;
> + #sound-dai-cells = <0>;
> status = "disabled";
> };
>
> @@ -396,6 +397,23 @@ tegra_ac97: ac97@70002000 {
> status = "disabled";
> };
>
> + tegra_spdif: spdif@70002400 {
> + compatible = "nvidia,tegra20-spdif";
> + reg = <0x70002400 0x200>;
> + interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&tegra_car TEGRA20_CLK_SPDIF_OUT>,
> + <&tegra_car TEGRA20_CLK_SPDIF_IN>;
> + clock-names = "spdif_out", "spdif_in";
> + resets = <&tegra_car 10>;
> + dmas = <&apbdma 3>, <&apbdma 3>;
> + dma-names = "rx", "tx";
> + #sound-dai-cells = <0>;
> + status = "disabled";
> +
> + assigned-clocks = <&tegra_car TEGRA20_CLK_SPDIF_OUT>;
> + assigned-clock-parents = <&tegra_car TEGRA20_CLK_PLL_A_OUT0>;
> + };
> +
> tegra_i2s1: i2s@70002800 {
> compatible = "nvidia,tegra20-i2s";
> reg = <0x70002800 0x200>;
>
@Thierry, this patch is made on top of [1].
[1] https://patchwork.ozlabs.org/project/linux-tegra/list/?series=271954
