linux-kernel - [RFC 1/8] dt-bindings: media: Document Synopsys DesignWare HDMI RX

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Date:   Wed, 28 Apr 2021 17:25:04 +0200
From:   Nelson Costa <Nelson.Costa@...opsys.com>
To:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Jose Abreu <Jose.Abreu@...opsys.com>,
        Nelson Costa <Nelson.Costa@...opsys.com>,
        Jose Abreu <Jose.Abreu@...opsys.com>
Subject: [RFC 1/8] dt-bindings: media: Document Synopsys DesignWare HDMI RX

Document the bindings for the Synopsys DesignWare HDMI RX.

Signed-off-by: Jose Abreu <jose.abreu@...opsys.com>
Signed-off-by: Nelson Costa <nelson.costa@...opsys.com>
---
 .../devicetree/bindings/media/snps,dw-hdmi-rx.yaml | 149 +++++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/snps,dw-hdmi-rx.yaml

diff --git a/Documentation/devicetree/bindings/media/snps,dw-hdmi-rx.yaml b/Documentation/devicetree/bindings/media/snps,dw-hdmi-rx.yaml
new file mode 100644
index 0000000..19c7dd4
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/snps,dw-hdmi-rx.yaml
@@ -0,0 +1,149 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/snps,dw-hdmi-rx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Synopsys DesignWare HDMI RX Controller and PHYs e405/e406 Device Tree Bindings
+
+maintainers:
+  - Jose Abreu <jose.abreu@...opsys.com>
+  - Nelson Costa <nelson.costa@...opsys.com>
+
+description: |
+  The Synopsys DesignWare HDMI RX Controller and PHYs e405/e406 is an HDMI 2.0
+  Receiver solution that is able to decode video and audio.
+
+properties:
+  compatible:
+    const: snps,dw-hdmi-rx
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+    description: phandle to the configuration clock
+
+  clock-names:
+    const: cfg
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+  phys:
+    maxItems: 1
+    description: phandle for the HDMI RX PHY
+
+  phy-names:
+    const: hdmi-phy
+
+  hdmi-phy@fc:
+    type: object
+    description: connection point for HDMI PHY
+    additionalProperties: false
+
+    properties:
+      compatible:
+        oneOf:
+          - const: snps,dw-hdmi-phy-e405
+          - const: snps,dw-hdmi-phy-e406
+
+      reg:
+        maxItems: 1
+
+      clocks:
+        maxItems: 1
+        description: phandle to the configuration clock
+
+      clock-names:
+        const: cfg
+
+      "#phy-cells":
+        const: 0
+
+      input-count:
+        description: Number of PHY input ports
+        $ref: /schemas/types.yaml#/definitions/uint32
+        enum: [1, 2, 3, 4]
+
+    required:
+      - compatible
+      - reg
+      - clocks
+      - clock-names
+      - "#phy-cells"
+      - input-count
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - "#address-cells"
+  - "#size-cells"
+  - phys
+  - phy-names
+
+additionalProperties: false
+
+examples:
+  - |
+    hdmi_rx0: hdmi-rx@0 {
+        compatible = "snps,dw-hdmi-rx";
+        reg = <0x0 0x10000>;
+        interrupts = <1 2>;
+
+        clocks = <&dw_hdmi_refclk>;
+        clock-names = "cfg";
+
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        phys = <&hdmi_e405_phy>;
+        phy-names = "hdmi-phy";
+
+        hdmi_e405_phy: hdmi-phy@fc {
+                compatible = "snps,dw-hdmi-phy-e405";
+                reg = <0xfc>;
+
+                clocks = <&dw_hdmi_refclk>;
+                clock-names = "cfg";
+
+                #phy-cells = <0>;
+                input-count = <4>;
+        };
+    };
+  - |
+    hdmi_rx1: hdmi-rx@1 {
+        compatible = "snps,dw-hdmi-rx";
+        reg = <0x0 0x10000>;
+        interrupts = <1 2>;
+
+        clocks = <&dw_hdmi_refclk>;
+        clock-names = "cfg";
+
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        phys = <&hdmi_e406_phy>;
+        phy-names = "hdmi-phy";
+
+        hdmi_e406_phy: hdmi-phy@fc {
+                compatible = "snps,dw-hdmi-phy-e406";
+                reg = <0xfc>;
+
+                clocks = <&dw_hdmi_refclk>;
+                clock-names = "cfg";
+
+                #phy-cells = <0>;
+                input-count = <4>;
+        };
+    };
-- 
2.7.4