Re: [PATCH V2 1/2] dt-bindings: drm/bridge: ti-sn65dsi83: Add TI SN65DSI83 and SN65DSI84 bindings

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On 22.04.21 00:31, Marek Vasut wrote:
Add DT binding document for TI SN65DSI83 and SN65DSI84 DSI to LVDS bridge.

Signed-off-by: Marek Vasut <marex@xxxxxxx>
Cc: Douglas Anderson <dianders@xxxxxxxxxxxx>
Cc: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
To: dri-devel@xxxxxxxxxxxxxxxxxxxxx
---
V2: Add compatible string for SN65DSI84, since this is now tested on it
---
  .../bindings/display/bridge/ti,sn65dsi83.yaml | 134 ++++++++++++++++++
  1 file changed, 134 insertions(+)
  create mode 100644 Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml

diff --git a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml
new file mode 100644
index 000000000000..42d11b46a1eb
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml
@@ -0,0 +1,134 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/ti,sn65dsi83.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SN65DSI83 and SN65DSI84 DSI to LVDS bridge chip
+
+maintainers:
+  - Marek Vasut <marex@xxxxxxx>
+
+description: |
+  Texas Instruments SN65DSI83 1x Single-link MIPI DSI
+  to 1x Single-link LVDS
+  https://www.ti.com/lit/gpn/sn65dsi83
+  Texas Instruments SN65DSI84 1x Single-link MIPI DSI
+  to 1x Dual-link or 2x Single-link LVDS
+  https://www.ti.com/lit/gpn/sn65dsi84
+
+properties:
+  compatible:
+    oneOf:
+      - const: ti,sn65dsi83
+      - const: ti,sn65dsi84
+
+  reg:
+    const: 0x2d

There is a strapping pin to select the last bit of the address, so apart from 0x2d also 0x2c is valid here.

+
+  enable-gpios:
+    maxItems: 1
+    description: GPIO specifier for bridge_en pin (active high).
+
+  ports:
+    type: object
+    additionalProperties: false
+
+    properties:
+      "#address-cells":
+        const: 1
+
+      "#size-cells":
+        const: 0
+
+      port@0:
+        type: object
+        additionalProperties: false
+
+        description:
+          Video port for MIPI DSI input
+
+        properties:
+          reg:
+            const: 0
+
+          endpoint:
+            type: object
+            additionalProperties: false
+            properties:
+              remote-endpoint: true
+              data-lanes:
+                description: array of physical DSI data lane indexes.
+
+        required:
+          - reg
+
+      port@1:
+        type: object
+        additionalProperties: false
+
+        description:
+          Video port for LVDS output (panel or bridge).
+
+        properties:
+          reg:
+            const: 1
+
+          endpoint:
+            type: object
+            additionalProperties: false
+            properties:
+              remote-endpoint: true
+
+        required:
+          - reg
+
+    required:
+      - "#address-cells"
+      - "#size-cells"
+      - port@0
+      - port@1
+
+required:
+  - compatible
+  - reg
+  - enable-gpios
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      bridge@2d {
+        compatible = "ti,sn65dsi83";
+        reg = <0x2d>;
+
+        enable-gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
+
+        ports {
+          #address-cells = <1>;
+          #size-cells = <0>;
+
+          port@0 {
+            reg = <0>;
+            endpoint {
+              remote-endpoint = <&dsi0_out>;
+              data-lanes = <1 2 3 4>;
+            };
+          };
+
+          port@1 {
+            reg = <1>;
+            endpoint {
+              remote-endpoint = <&panel_in_lvds>;
+            };
+          };
+        };
+      };
+    };




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