linux-kernel - [PATCH 1/2] ASoC: dt-bindings: fsl_aud2htx: Add binding doc for aud2htx module

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Date:   Mon, 26 Oct 2020 18:40:54 +0800
From:   Shengjiu Wang <shengjiu.wang@....com>
To:     timur@...nel.org, nicoleotsuka@...il.com, Xiubo.Lee@...il.com,
        festevam@...il.com, broonie@...nel.org, perex@...ex.cz,
        tiwai@...e.com, alsa-devel@...a-project.org, lgirdwood@...il.com,
        robh+dt@...nel.org, devicetree@...r.kernel.org
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] ASoC: dt-bindings: fsl_aud2htx: Add binding doc for aud2htx module

AUD2HTX (Audio Subsystem TO HDMI TX Subsystem) is a new
IP module found on i.MX8MP.

Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
---
 .../bindings/sound/fsl,aud2htx.yaml           | 67 +++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/fsl,aud2htx.yaml

diff --git a/Documentation/devicetree/bindings/sound/fsl,aud2htx.yaml b/Documentation/devicetree/bindings/sound/fsl,aud2htx.yaml
new file mode 100644
index 000000000000..18548d0889a8
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/fsl,aud2htx.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/fsl,aud2htx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP Audio Subsystem to HDMI RTX Subsystem Controller
+
+maintainers:
+  - Shengjiu Wang <shengjiu.wang@....com>
+
+properties:
+  $nodename:
+    pattern: "^aud2htx@.*"
+
+  compatible:
+    const: fsl,imx8mp-aud2htx
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Peripheral clock
+
+  clock-names:
+    items:
+      - const: bus
+
+  dmas:
+    items:
+      - description: DMA controller phandle and request line for TX
+
+  dma-names:
+    items:
+      - const: tx
+
+  power-domains:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - dmas
+  - dma-names
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/imx8mp-clock.h>
+
+    aud2htx: aud2htx@...b0000 {
+             compatible = "fsl,imx8mp-aud2htx";
+             reg = <0x30cb0000 0x10000>;
+             interrupts = <GIC_SPI 130 IRQ_TYPE_LEVEL_HIGH>;
+             clocks = <&audiomix_clk IMX8MP_CLK_AUDIOMIX_AUD2HTX_IPG>;
+             clock-names = "bus";
+             dmas = <&sdma2 26 2 0>;
+             dma-names = "tx";
+             power-domains = <&audiomix_pd>;
+    };
-- 
2.27.0