linux-kernel - [PATCH 2/3] dt-bindings: ufs: qcom: document SC7180 UFS

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Date: Tue, 26 Mar 2024 18:46:31 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Alim Akhtar <alim.akhtar@...sung.com>,
	Avri Altman <avri.altman@....com>,
	Bart Van Assche <bvanassche@....org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Andy Gross <agross@...nel.org>,
	linux-arm-msm@...r.kernel.org,
	linux-scsi@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 2/3] dt-bindings: ufs: qcom: document SC7180 UFS

Document already upstreamed and used Qualcomm SC7180 UFS host controller
to fix dtbs_check warnings like:

  sc7180-idp.dtb: ufshc@...4000: compatible:0: 'qcom,sc7180-ufshc' is not one of ...
  sc7180-idp.dtb: ufshc@...4000: clocks: [[39, 99], [39, 7], [39, 98], [39, 107], [36, 0], [39, 106], [39, 105]] is too short
  sc7180-idp.dtb: ufshc@...4000: clock-names: ['core_clk', 'bus_aggr_clk', 'iface_clk', 'core_clk_unipro', ...] is too short

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 .../devicetree/bindings/ufs/qcom,ufs.yaml     | 34 ++++++++++++++++---
 1 file changed, 30 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
index 1ab3d16917ac..7e6d442545ad 100644
--- a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
+++ b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
@@ -27,6 +27,7 @@ properties:
           - qcom,msm8996-ufshc
           - qcom,msm8998-ufshc
           - qcom,sa8775p-ufshc
+          - qcom,sc7180-ufshc
           - qcom,sc7280-ufshc
           - qcom,sc8180x-ufshc
           - qcom,sc8280xp-ufshc
@@ -43,11 +44,11 @@ properties:
       - const: jedec,ufs-2.0
 
   clocks:
-    minItems: 8
+    minItems: 7
     maxItems: 11
 
   clock-names:
-    minItems: 8
+    minItems: 7
     maxItems: 11
 
   dma-coherent: true
@@ -113,6 +114,31 @@ required:
 allOf:
   - $ref: ufs-common.yaml
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,sc7180-ufshc
+    then:
+      properties:
+        clocks:
+          minItems: 7
+          maxItems: 7
+        clock-names:
+          items:
+            - const: core_clk
+            - const: bus_aggr_clk
+            - const: iface_clk
+            - const: core_clk_unipro
+            - const: ref_clk
+            - const: tx_lane0_sync_clk
+            - const: rx_lane0_sync_clk
+        reg:
+          maxItems: 1
+        reg-names:
+          maxItems: 1
+
   - if:
       properties:
         compatible:
@@ -250,7 +276,7 @@ allOf:
         reg:
           maxItems: 1
         clocks:
-          minItems: 8
+          minItems: 7
           maxItems: 8
     else:
       properties:
@@ -258,7 +284,7 @@ allOf:
           minItems: 1
           maxItems: 2
         clocks:
-          minItems: 8
+          minItems: 7
           maxItems: 11
 
 unevaluatedProperties: false
-- 
2.34.1