From ed41005f5b7c6886179c3f7546ebe50ef7d28d5e Mon Sep 17 00:00:00 2001
From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Tue, 6 Jun 2023 14:43:54 +0200
Subject: [PATCH] dt-bindings: display/msm: sc7180-dpu: Describe SM6350 and
 SM6375

SC7180, SM6350 and SM6375 use a rather similar hw setup for DPU, with
the main exception being that the last one requires an additional
throttle clock.

It is not well understood yet, but failing to toggle it on makes the
display hardware stall and not output any frames.

Document SM6350 and SM6375 DPU.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/541283/
Link: https://lore.kernel.org/r/20230411-topic-straitlagoon_mdss-v6-3-dee6a882571b@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 .../bindings/display/msm/qcom,sc7180-dpu.yaml | 23 ++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sc7180-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sc7180-dpu.yaml
index 1fb8321d9ee80..630b11480496f 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sc7180-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sc7180-dpu.yaml
@@ -13,7 +13,10 @@ $ref: /schemas/display/msm/dpu-common.yaml#
 
 properties:
   compatible:
-    const: qcom,sc7180-dpu
+    enum:
+      - qcom,sc7180-dpu
+      - qcom,sm6350-dpu
+      - qcom,sm6375-dpu
 
   reg:
     items:
@@ -26,6 +29,7 @@ properties:
       - const: vbif
 
   clocks:
+    minItems: 6
     items:
       - description: Display hf axi clock
       - description: Display ahb clock
@@ -33,8 +37,10 @@ properties:
       - description: Display lut clock
       - description: Display core clock
       - description: Display vsync clock
+      - description: Display core throttle clock
 
   clock-names:
+    minItems: 6
     items:
       - const: bus
       - const: iface
@@ -42,6 +48,7 @@ properties:
       - const: lut
       - const: core
       - const: vsync
+      - const: throttle
 
 required:
   - compatible
@@ -52,6 +59,20 @@ required:
 
 unevaluatedProperties: false
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          const: qcom,sm6375-dpu
+
+    then:
+      properties:
+        clocks:
+          minItems: 7
+
+        clock-names:
+          minItems: 7
+
 examples:
   - |
     #include <dt-bindings/clock/qcom,dispcc-sc7180.h>
-- 
2.30.2