[Linux-stm32] [PATCH V3 20/22] ARM: dts: stm32: Add bindings for audio on AV96

[Marek Vasut]

Fill in the bindings for HDMI audio on AV96, this permits audio playback
via attached HDMI device if such device supports it.

Signed-off-by: Marek Vasut <marex at denx.de>
Cc: Alexandre Torgue <alexandre.torgue at st.com>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam at linaro.org>
Cc: Maxime Coquelin <mcoquelin.stm32 at gmail.com>
Cc: Patrice Chotard <patrice.chotard at st.com>
Cc: Patrick Delaunay <patrick.delaunay at st.com>
Cc: linux-stm32 at st-md-mailman.stormreply.com
To: linux-arm-kernel at lists.infradead.org
---
V2: No change
V3: No change
---
 arch/arm/boot/dts/stm32mp157a-avenger96.dts | 39 +++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/arch/arm/boot/dts/stm32mp157a-avenger96.dts b/arch/arm/boot/dts/stm32mp157a-avenger96.dts
index 1ec44c155fb8..edf075310f3a 100644
--- a/arch/arm/boot/dts/stm32mp157a-avenger96.dts
+++ b/arch/arm/boot/dts/stm32mp157a-avenger96.dts
@@ -98,6 +98,13 @@ sd_switch: regulator-sd_switch {
 			 <2900000 0x0>;
 	};
 
+	sound {
+		compatible = "audio-graph-card";
+		label = "STM32MP1-AV96-HDMI";
+		dais = <&sai2a_port>;
+		status = "okay";
+	};
+
 	/* Enpirion EP3A8LQI U2 on the DHCOR */
 	vdd_io: regulator-buck-io {
 		compatible = "regulator-fixed";
@@ -363,6 +370,13 @@ adv7513_out: endpoint {
 					remote-endpoint = <&hdmi_con>;
 				};
 			};
+
+			port at 2 {
+				reg = <2>;
+				adv7513_i2s0: endpoint {
+					remote-endpoint = <&sai2a_endpoint>;
+				};
+			};
 		};
 	};
 
@@ -427,6 +441,31 @@ &rtc {
 	status = "okay";
 };
 
+&sai2 {
+	clocks = <&rcc SAI2>, <&rcc PLL3_Q>, <&rcc PLL3_R>;
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&sai2a_pins_c>;
+	pinctrl-1 = <&sai2a_sleep_pins_c>;
+	clock-names = "pclk", "x8k", "x11k";
+	status = "okay";
+
+	sai2a: audio-controller at 4400b004 {
+		#clock-cells = <0>;
+		dma-names = "tx";
+		clocks = <&rcc SAI2_K>;
+		clock-names = "sai_ck";
+		status = "okay";
+
+		sai2a_port: port {
+			sai2a_endpoint: endpoint {
+				remote-endpoint = <&adv7513_i2s0>;
+				format = "i2s";
+				mclk-fs = <256>;
+			};
+		};
+	};
+};
+
 &sdmmc1 {
 	pinctrl-names = "default", "opendrain", "sleep";
 	pinctrl-0 = <&sdmmc1_b4_pins_a &sdmmc1_dir_pins_b>;
-- 
2.25.1