[PATCH 1/3] dt-bindings: clock: qcom,sm8450-videocc: Fix clock inputs for Glymur

[Shawn Guo <shengchao.guo@oss.qualcomm.com>]

The schema describes exactly two clock inputs for every compatible it
covers, a board XO and a video AHB clock from GCC. That is only true
for part of the drivers bound to these compatibles. videocc-glymur.c,
which handles qcom,glymur-videocc and qcom,nord-videocc, and
videocc-sm8750.c both declare their DT inputs as DT_BI_TCXO,
DT_BI_TCXO_AO and DT_SLEEP_CLK, and parent video_cc_sleep_clk_src on
DT_SLEEP_CLK.

Because the schema stops at two items, no device tree can supply the
third input, so video_cc_sleep_clk_src can never resolve its parent
and registers as an orphan clock. It also documents the second input
as an AHB clock, which no device tree using these two drivers passes,
and which those drivers would interpret as the always-on XO.

Describe three inputs for the Glymur, Nord and SM8750 compatibles,
keeping the existing two-input description for the rest. The sibling
qcom,glymur-evacc.yaml, whose driver has the same shape, already
documents a sleep clock this way.

Fixes: ed9ca8296147 ("dt-bindings: clock: qcom: Add video clock controller on Glymur SoC")
Fixes: b190eaea5780 ("dt-bindings: clock: qcom: Add SM8750 video clock controller")
Assisted-by: LLM
Signed-off-by: Shawn Guo <shengchao.guo@oss.qualcomm.com>
---
 .../bindings/clock/qcom,sm8450-videocc.yaml   | 26 ++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8450-videocc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8450-videocc.yaml
index e985a450451d..9bd746afbc11 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm8450-videocc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8450-videocc.yaml
@@ -42,9 +42,8 @@ properties:
       - qcom,x1p42100-videocc
 
   clocks:
-    items:
-      - description: Board XO source
-      - description: Video AHB clock from GCC
+    minItems: 2
+    maxItems: 3
 
   power-domains:
     description:
@@ -79,6 +78,27 @@ allOf:
     then:
       required:
         - required-opps
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,glymur-videocc
+              - qcom,nord-videocc
+              - qcom,sm8750-videocc
+    then:
+      properties:
+        clocks:
+          items:
+            - description: Board XO source
+            - description: Board always-on XO source
+            - description: Sleep clock source
+    else:
+      properties:
+        clocks:
+          items:
+            - description: Board XO source
+            - description: Video AHB clock from GCC
 
 unevaluatedProperties: false
 
-- 
2.43.0