Re: [PATCH v5 3/8] dt-bindings: media: add bindings for TI DS90UB913

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On 11/12/2022 19:13, Laurent Pinchart wrote:
Hi Tomi,

Thank you for the patch.

On Thu, Dec 08, 2022 at 12:40:01PM +0200, Tomi Valkeinen wrote:
Add DT bindings for TI DS90UB913 FPDLink-3 Serializer.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>
---
  .../bindings/media/i2c/ti,ds90ub913.yaml      | 121 ++++++++++++++++++
  1 file changed, 121 insertions(+)
  create mode 100644 Documentation/devicetree/bindings/media/i2c/ti,ds90ub913.yaml

diff --git a/Documentation/devicetree/bindings/media/i2c/ti,ds90ub913.yaml b/Documentation/devicetree/bindings/media/i2c/ti,ds90ub913.yaml
new file mode 100644
index 000000000000..3a5b34c6bb64
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/ti,ds90ub913.yaml
@@ -0,0 +1,121 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/ti,ds90ub913.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments DS90UB913 FPD-Link 3 Serializer

I think TI consistently writes it "FPD-Link III". If you rename it,
please do so through the whole series.

Indeed, good point.

+
+maintainers:
+  - Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>
+
+description:
+  The TI DS90UB913 is an FPD-Link 3 video serializer for parallel video.
+
+properties:
+  compatible:
+    enum:
+      - ti,ds90ub913a-q1

Is the -q1 suffix needed, are there other variants ?

I'm not sure, but I couldn't see at a quick glance. I don't know what the -q1 means. Even if many of the FPD-Link devices have -q1, there are models without -q1, like DS90CF366. Oh, all those non-q1s seem to be from Catalog, and -q1 versions from Automotive. But the -q1 seems to be part of the model name, so... Maybe it's better to keep it.

https://www.ti.com/interface/high-speed-serdes/fpd-link-serdes/products.html

+
+  '#gpio-cells':
+    const: 2
+
+  gpio-controller: true
+
+  clocks:
+    maxItems: 1
+    description:
+      Reference clock connected to the CLKIN pin.
+
+  clock-names:
+    items:
+      - const: clkin
+
+  '#clock-cells':
+    const: 0
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: CSI-2 input port
+
+        properties:
+          endpoint:
+            $ref: /schemas/media/video-interfaces.yaml#
+            unevaluatedProperties: false
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        unevaluatedProperties: false
+        description: FPD-Link 3 output port

I'd add

     required:
       - port@0
       - port@1

Ok.

 Tomi




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