linux-kernel - [PATCH 01/11] dt-bindings: display: rockchip,inno-hdmi: Document RK3128 compatible

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Date:   Wed, 13 Dec 2023 20:51:15 +0100
From:   Alex Bee <knaerzche@...il.com>
To:     Sandy Huang <hjc@...k-chips.com>,
        Heiko Stübner <heiko@...ech.de>,
        Andy Yan <andyshrk@....com>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>
Cc:     David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Alex Bee <knaerzche@...il.com>
Subject: [PATCH 01/11] dt-bindings: display: rockchip,inno-hdmi: Document RK3128 compatible

Document the compatible for RK3128's HDMI controller block.
The integration for this SoC is somewhat different here: It needs the PHY's
reference clock rate to calculate the ddc bus frequency correctly. This
clock is part of a power-domain (PD_VIO), so this gets added as an optional
property too.

Signed-off-by: Alex Bee <knaerzche@...il.com>
---
 .../display/rockchip/rockchip,inno-hdmi.yaml  | 30 +++++++++++++++++--
 1 file changed, 28 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,inno-hdmi.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,inno-hdmi.yaml
index 96889c86849a..9f00abcbfb38 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip,inno-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,inno-hdmi.yaml
@@ -14,6 +14,7 @@ properties:
   compatible:
     enum:
       - rockchip,rk3036-inno-hdmi
+      - rockchip,rk3128-inno-hdmi
 
   reg:
     maxItems: 1
@@ -22,10 +23,21 @@ properties:
     maxItems: 1
 
   clocks:
-    maxItems: 1
+    minItems: 1
+    items:
+      - description: The HDMI controller main clock
+      - description: The HDMI PHY reference clock
 
   clock-names:
-    const: pclk
+    minItems: 1
+    items:
+      - const: pclk
+      - enum:
+          - pclk
+          - ref
+
+  power-domains:
+    maxItems: 1
 
   ports:
     $ref: /schemas/graph.yaml#/properties/ports
@@ -55,6 +67,20 @@ required:
   - pinctrl-names
   - ports
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: rockchip,rk3128-inno-hdmi
+
+    then:
+      properties:
+        clocks:
+          minItems: 2
+        clock-names:
+          minItems: 2
+
 additionalProperties: false
 
 examples:
-- 
2.43.0