[PATCH v2 3/3] riscv: dts: starfive: Add JH7110 PWM-DAC support

Hal Feng
2023-07-31T03:29:17Z

Add PWM-DAC support for StarFive JH7110 SoC.

Reviewed-by: Walker Chen <walker.chen@starfivetech.com>
Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
---
.../jh7110-starfive-visionfive-2.dtsi | 49 +++++++++++++++++++
arch/riscv/boot/dts/starfive/jh7110.dtsi | 13 +++++
2 files changed, 62 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 f874d31006a6..98373b743019 100644
--- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
@@ -38,6 +38,33 @@ gpio-restart {
gpios = <&sysgpio 35 GPIO_ACTIVE_HIGH>;
priority = <224>;
};
+
+ pwmdac_codec: pwmdac-codec {
+ compatible = "linux,spdif-dit";
+ #sound-dai-cells = <0>;
+ };
+
+ sound-pwmdac {
+ 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>;
+
+ sndcpu0: cpu {
+ sound-dai = <&pwmdac>;
+ };
+
+ codec {
+ sound-dai = <&pwmdac_codec>;
+ };
+ };
+ };
};

&dvp_clk {
@@ -185,6 +212,12 @@ &i2c6 {
status = "okay";
};

+&pwmdac {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwmdac_pins>;
+ status = "okay";
+};
+
&spi0 {
pinctrl-names = "default";
pinctrl-0 = <&spi0_pins>;
@@ -254,6 +287,22 @@ 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>;
+ };
+ };
+
spi0_pins: spi0-0 {
mosi-pins {
pinmux = <GPIOMUX(52, GPOUT_SYS_SPI0_TXD,
diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi
index 05f843b8ca03..7f508b4475e0 100644
--- a/arch/riscv/boot/dts/starfive/jh7110.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi
@@ -512,6 +512,19 @@ 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";
+ };
+
usb0: usb@10100000 {
compatible = "starfive,jh7110-usb";
ranges = <0x0 0x0 0x10100000 0x100000>;