[PATCH v2 2/2] arm64: dts: renesas: rzg2lc-smarc: Enable HDMI audio

[Biju Das <biju.das.jz@xxxxxxxxxxxxxx>]

Enable HDMI audio on RZ/G2LC SMARC EVK. Set SW 1.5 to OFF
position on the SoM module to turn on HDMI audio.

Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
---
v1->v2:
 * Dropped deleting ssi0 port when SW_I2S0_I2S1==0 as it enables only
   when SW_I2S0_I2S1==1.
---
 .../boot/dts/renesas/r9a07g044c2-smarc.dts    |  3 ++
 arch/arm64/boot/dts/renesas/rzg2lc-smarc.dtsi | 33 +++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a07g044c2-smarc.dts b/arch/arm64/boot/dts/renesas/r9a07g044c2-smarc.dts
index 0b90367b6d1e..ee5bf2c58051 100644
--- a/arch/arm64/boot/dts/renesas/r9a07g044c2-smarc.dts
+++ b/arch/arm64/boot/dts/renesas/r9a07g044c2-smarc.dts
@@ -47,6 +47,9 @@
 #error "Cannot set as both PMOD_MTU3 and SW_RSPI_CAN are mutually exclusive"
 #endif
 
+/* Please set SW_I2S0_I2S1. Default value is 0 */
+#define SW_I2S0_I2S1   0
+
 #include "r9a07g044c2.dtsi"
 #include "rzg2lc-smarc-som.dtsi"
 #include "rzg2lc-smarc.dtsi"
diff --git a/arch/arm64/boot/dts/renesas/rzg2lc-smarc.dtsi b/arch/arm64/boot/dts/renesas/rzg2lc-smarc.dtsi
index f21508640b6e..377849cbb462 100644
--- a/arch/arm64/boot/dts/renesas/rzg2lc-smarc.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg2lc-smarc.dtsi
@@ -33,6 +33,16 @@ hdmi_con_out: endpoint {
 			};
 		};
 	};
+
+#if (SW_I2S0_I2S1)
+	/delete-node/ sound;
+
+	sound_card {
+		compatible = "audio-graph-card";
+		label = "HDMI-Audio";
+		dais = <&i2s2_port>;
+	};
+#endif
 };
 
 #if (SW_SCIF_CAN || SW_RSPI_CAN)
@@ -48,9 +58,11 @@ &canfd {
 };
 #endif
 
+#if (!SW_I2S0_I2S1)
 &cpu_dai {
 	sound-dai = <&ssi0>;
 };
+#endif
 
 &dsi {
 	status = "okay";
@@ -104,6 +116,15 @@ adv7535_out: endpoint {
 					remote-endpoint = <&hdmi_con_out>;
 				};
 			};
+
+#if (SW_I2S0_I2S1)
+			port@2 {
+				reg = <2>;
+				codec_endpoint: endpoint {
+					remote-endpoint = <&i2s2_cpu_endpoint>;
+				};
+			};
+#endif
 		};
 	};
 };
@@ -177,6 +198,18 @@ &ssi0 {
 	pinctrl-names = "default";
 
 	status = "okay";
+
+#if (SW_I2S0_I2S1)
+	i2s2_port: port {
+		i2s2_cpu_endpoint: endpoint {
+			remote-endpoint = <&codec_endpoint>;
+			dai-format = "i2s";
+
+			bitclock-master = <&i2s2_cpu_endpoint>;
+			frame-master = <&i2s2_cpu_endpoint>;
+		};
+	};
+#endif
 };
 
 #if (SW_RSPI_CAN)
-- 
2.43.0