arm64: dts: allwinner: h6: Add RX DMA channel for SPDIF

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@csie.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20240127163247.384439-6-wens@kernel.org
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>

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 9ec49ac..381d58c 100644 (file)
--- 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 @@
 };
 
 &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 4903d63..855b7d4 100644 (file)
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-tanix.dtsi
@@ -166,6 +166,8 @@
 };
 
 &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 ca1d287..d11e504 100644 (file)
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
@@ -406,6 +406,7 @@
                                function = "spi1";
                        };
 
+                       /omit-if-no-ref/
                        spdif_tx_pin: spdif-tx-pin {
                                pins = "PH7";
                                function = "spdif";
@@ -655,10 +656,8 @@
                        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";
                };