linux-kernel - [PATCH 5/7] arm64: dts: allwinner: h6: Add RX DMA channel for SPDIF

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Date: Tue, 23 Jan 2024 01:05:16 +0800
From: Chen-Yu Tsai <wens@...nel.org>
To: Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Samuel Holland <samuel@...lland.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	Vinod Koul <vkoul@...nel.org>
Cc: Chen-Yu Tsai <wens@...e.org>,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-sunxi@...ts.linux.dev,
	linux-sound@...r.kernel.org,
	dmaengine@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 5/7] arm64: dts: allwinner: h6: Add RX DMA channel for SPDIF

From: Chen-Yu Tsai <wens@...e.org>

The SPDIF hardware found on the H6 supports both transmit and receive
functions. However it is missing the RX DMA channel.

Add the SPDIF hardware block's RX DMA channel. Also remove the
by-default pinmux, since the end device can choose to implement
either or both functionalities.

Fixes: f95b598df419 ("arm64: dts: allwinner: Add SPDIF node for Allwinner H6")
Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts | 2 ++
 arch/arm64/boot/dts/allwinner/sun50i-h6-tanix.dtsi      | 2 ++
 arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi            | 7 +++----
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
index 9ec49ac2f6fd..381d58cea092 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
@@ -291,6 +291,8 @@ sw {
 };
 
 &spdif {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spdif_tx_pin>;
 	status = "okay";
 };
 
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix.dtsi
index 4903d6358112..855b7d43bc50 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix.dtsi
@@ -166,6 +166,8 @@ &r_ir {
 };
 
 &spdif {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spdif_tx_pin>;
 	status = "okay";
 };
 
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
index ca1d287a0a01..d11e5041bae9 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
@@ -406,6 +406,7 @@ spi1_cs_pin: spi1-cs-pin {
 				function = "spi1";
 			};
 
+			/omit-if-no-ref/
 			spdif_tx_pin: spdif-tx-pin {
 				pins = "PH7";
 				function = "spdif";
@@ -655,10 +656,8 @@ spdif: spdif@...3000 {
 			clocks = <&ccu CLK_BUS_SPDIF>, <&ccu CLK_SPDIF>;
 			clock-names = "apb", "spdif";
 			resets = <&ccu RST_BUS_SPDIF>;
-			dmas = <&dma 2>;
-			dma-names = "tx";
-			pinctrl-names = "default";
-			pinctrl-0 = <&spdif_tx_pin>;
+			dmas = <&dma 2>, <&dma 2>;
+			dma-names = "rx", "tx";
 			status = "disabled";
 		};
 
-- 
2.39.2