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From:   Quentin Schulz <foss+kernel@0leil.net>
Cc:     robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
        heiko@sntech.de, linus.walleij@linaro.org, david@ixit.cz,
        jbx6244@gmail.com, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
        foss+kernel@0leil.net,
        Quentin Schulz <quentin.schulz@theobroma-systems.com>
Subject: [PATCH] arm64: dts: rockchip: add i2s0 I2S/PDM/TDM 8ch controller to px30
Date:   Fri, 16 Sep 2022 11:17:46 +0200
Message-Id: <20220916091746.35108-1-foss+kernel@0leil.net>
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From: Quentin Schulz <quentin.schulz@theobroma-systems.com>

The Rockchip PX30 SoC has three I2S controllers, i2s1 and i2s2 are
2-channel I2S/PCM controllers handled by the same controller driver, and
i2s0 a 8-channel I2S/PCM/TDM controller handled by another controller
driver.

This adds the device tree node required to enable I2S0 on PX30.

This was tested in a 2-channel I2S with TX BCLK/LRCK for both TX and RX
(rockchip,trcm-sync-tx-only) setup on a soon-to-be-released board.

Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
---
 arch/arm64/boot/dts/rockchip/px30.dtsi | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/px30.dtsi b/arch/arm64/boot/dts/rockchip/px30.dtsi
index 214f94fea3dc..bfa3580429d1 100644
--- a/arch/arm64/boot/dts/rockchip/px30.dtsi
+++ b/arch/arm64/boot/dts/rockchip/px30.dtsi
@@ -365,6 +365,28 @@ uart0: serial@ff030000 {
 		status = "disabled";
 	};
 
+	i2s0_8ch: i2s@ff060000 {
+		compatible = "rockchip,px30-i2s-tdm";
+		reg = <0x0 0xff060000 0x0 0x1000>;
+		interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru SCLK_I2S0_TX>, <&cru SCLK_I2S0_RX>, <&cru HCLK_I2S0>;
+		clock-names = "mclk_tx", "mclk_rx", "hclk";
+		dmas = <&dmac 16>, <&dmac 17>;
+		dma-names = "tx", "rx";
+		rockchip,grf = <&grf>;
+		resets = <&cru SRST_I2S0_TX>, <&cru SRST_I2S0_RX>;
+		reset-names = "tx-m", "rx-m";
+		pinctrl-names = "default";
+		pinctrl-0 = <&i2s0_8ch_sclktx &i2s0_8ch_sclkrx
+			     &i2s0_8ch_lrcktx &i2s0_8ch_lrckrx
+			     &i2s0_8ch_sdo0 &i2s0_8ch_sdi0
+			     &i2s0_8ch_sdo1 &i2s0_8ch_sdi1
+			     &i2s0_8ch_sdo2 &i2s0_8ch_sdi2
+			     &i2s0_8ch_sdo3 &i2s0_8ch_sdi3>;
+		#sound-dai-cells = <0>;
+		status = "disabled";
+	};
+
 	i2s1_2ch: i2s@ff070000 {
 		compatible = "rockchip,px30-i2s", "rockchip,rk3066-i2s";
 		reg = <0x0 0xff070000 0x0 0x1000>;
-- 
2.37.3