linux-kernel - [PATCH v1 2/2] arm64: dts: rockchip: Add HDMI0 audio output on rock-5b

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Message-ID: <20250117164815.67253-3-detlev.casanova@collabora.com>
Date: Fri, 17 Jan 2025 11:46:58 -0500
From: Detlev Casanova <detlev.casanova@...labora.com>
To: linux-kernel@...r.kernel.org
Cc: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Heiko Stuebner <heiko@...ech.de>,
	Andrzej Hajda <andrzej.hajda@...el.com>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Robert Foss <rfoss@...nel.org>,
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
	Jonas Karlman <jonas@...boo.se>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Sebastian Reichel <sebastian.reichel@...labora.com>,
	Cristian Ciocaltea <cristian.ciocaltea@...labora.com>,
	Alexey Charkov <alchark@...il.com>,
	Jianfeng Liu <liujianfeng1994@...il.com>,
	Dragan Simic <dsimic@...jaro.org>,
	FUKAUMI Naoki <naoki@...xa.com>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Detlev Casanova <detlev.casanova@...labora.com>,
	Johan Jonker <jbx6244@...il.com>,
	Kever Yang <kever.yang@...k-chips.com>,
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
	Sugar Zhang <sugar.zhang@...k-chips.com>,
	Algea Cao <algea.cao@...k-chips.com>,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	dri-devel@...ts.freedesktop.org,
	kernel@...labora.com
Subject: [PATCH v1 2/2] arm64: dts: rockchip: Add HDMI0 audio output on rock-5b

Use the simple-audio-card driver with the hdmi0 QP node as CODEC and
the i2s5 device as CPU.

The simple-audio-card,mclk-fs value is set to 128 as it is done in
the downstream driver.

The #sound-dai-cells value is set to 0 in the hdmi0 node so that it can be
used as an audio codec node.

Signed-off-by: Detlev Casanova <detlev.casanova@...labora.com>
---
 arch/arm64/boot/dts/rockchip/rk3588-base.dtsi |  1 +
 .../boot/dts/rockchip/rk3588-rock-5b.dts      | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi b/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi
index a337f3fb8377..fcd1c85e6ce8 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588-base.dtsi
@@ -1395,6 +1395,7 @@ hdmi0: hdmi@...80000 {
 		reset-names = "ref", "hdp";
 		rockchip,grf = <&sys_grf>;
 		rockchip,vo-grf = <&vo1_grf>;
+		#sound-dai-cells = <0>;
 		status = "disabled";
 
 		ports {
diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
index c44d001da169..50e13216ff28 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
@@ -49,6 +49,21 @@ hdmi0_con_in: endpoint {
 		};
 	};
 
+	hdmi0-sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,format = "i2s";
+		simple-audio-card,mclk-fs = <128>;
+		simple-audio-card,name = "hdmi0";
+
+		simple-audio-card,codec {
+			sound-dai = <&hdmi0>;
+		};
+
+		simple-audio-card,cpu {
+			sound-dai = <&i2s5_8ch>;
+		};
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
@@ -318,6 +333,10 @@ i2s0_8ch_p0_0: endpoint {
 	};
 };
 
+&i2s5_8ch {
+	status = "okay";
+};
+
 &package_thermal {
 	polling-delay = <1000>;
 
-- 
2.48.1