On 2023/6/26 19:09, Hal Feng wrote:
> Add PWM-DAC support for StarFive JH7110 SoC.
>
> Signed-off-by: Hal Feng <hal.feng@xxxxxxxxxxxxxxxx>
Reviewed-by: Walker Chen <walker.chen@xxxxxxxxxxxxxxxx>
> ---
> .../jh7110-starfive-visionfive-2.dtsi | 50 +++++++++++++++++++
> arch/riscv/boot/dts/starfive/jh7110.dtsi | 13 +++++
> 2 files changed, 63 insertions(+)
>
> diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
> index 19b5954ee72d..5ca66a65e722 100644
> --- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
> +++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
> @@ -36,6 +36,34 @@ gpio-restart {
> gpios = <&sysgpio 35 GPIO_ACTIVE_HIGH>;
> priority = <224>;
> };
> +
> + pwmdac_dit: pwmdac-dit {
> + compatible = "starfive,jh7110-pwmdac-dit";
> + #sound-dai-cells = <0>;
> + };
> +
> + sound {
> + compatible = "simple-audio-card";
> + simple-audio-card,name = "StarFive-PWMDAC-Sound-Card";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + simple-audio-card,dai-link@0 {
> + reg = <0>;
> + format = "left_j";
> + bitclock-master = <&sndcpu0>;
> + frame-master = <&sndcpu0>;
> + status = "okay";
> +
> + sndcpu0: cpu {
> + sound-dai = <&pwmdac>;
> + };
> +
> + codec {
> + sound-dai = <&pwmdac_dit>;
> + };
> + };
> + };
> };
>
> &dvp_clk {
> @@ -191,6 +219,22 @@ GPOEN_SYS_I2C6_DATA,
> };
> };
>
> + pwmdac_pins: pwmdac-0 {
> + pwmdac-pins {
> + pinmux = <GPIOMUX(33, GPOUT_SYS_PWMDAC_LEFT,
> + GPOEN_ENABLE,
> + GPI_NONE)>,
> + <GPIOMUX(34, GPOUT_SYS_PWMDAC_RIGHT,
> + GPOEN_ENABLE,
> + GPI_NONE)>;
> + bias-disable;
> + drive-strength = <2>;
> + input-disable;
> + input-schmitt-disable;
> + slew-rate = <0>;
> + };
> + };
> +
> uart0_pins: uart0-0 {
> tx-pins {
> pinmux = <GPIOMUX(5, GPOUT_SYS_UART0_TX,
> @@ -250,6 +294,12 @@ GPOEN_DISABLE,
> };
> };
>
> +&pwmdac {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pwmdac_pins>;
> + status = "okay";
> +};
> +
> &uart0 {
> pinctrl-names = "default";
> pinctrl-0 = <&uart0_pins>;
> diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi
> index cfda6fb0d91b..bbb3f65e6f80 100644
> --- a/arch/riscv/boot/dts/starfive/jh7110.dtsi
> +++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi
> @@ -387,6 +387,19 @@ tdm: tdm@10090000 {
> status = "disabled";
> };
>
> + pwmdac: pwmdac@100b0000 {
> + compatible = "starfive,jh7110-pwmdac";
> + reg = <0x0 0x100b0000 0x0 0x1000>;
> + clocks = <&syscrg JH7110_SYSCLK_PWMDAC_APB>,
> + <&syscrg JH7110_SYSCLK_PWMDAC_CORE>;
> + clock-names = "apb", "core";
> + resets = <&syscrg JH7110_SYSRST_PWMDAC_APB>;
> + dmas = <&dma 22>;
> + dma-names = "tx";
> + #sound-dai-cells = <0>;
> + status = "disabled";
> + };
> +
> stgcrg: clock-controller@10230000 {
> compatible = "starfive,jh7110-stgcrg";
> reg = <0x0 0x10230000 0x0 0x10000>;
