linux-kernel - [PATCH v2 3/6] dt-bindings: PCI: qcom-ep: add SAR2130P compatible

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Message-Id: <20250221-sar2130p-pci-v2-3-cc87590ffbeb@linaro.org>
Date: Fri, 21 Feb 2025 05:06:02 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>, 
 Lorenzo Pieralisi <lpieralisi@...nel.org>, 
 Krzysztof Wilczyński <kw@...ux.com>, 
 Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Mrinmay Sarkar <quic_msarkar@...cinc.com>, 
 Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>
Cc: Krzysztof Wilczyński <kwilczynski@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, 
 linux-arm-msm@...r.kernel.org, linux-pci@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 3/6] dt-bindings: PCI: qcom-ep: add SAR2130P compatible

Add support for using the PCI controller in the endpoint mode on the
SAR2130P platform. It is impossible to use fallback compatible to any
other platform since SAR2130P uses slightly different set of clocks.

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
 .../devicetree/bindings/pci/qcom,pcie-ep.yaml      | 44 +++++++++++++++++++++-
 1 file changed, 42 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
index 460191fc4ff1b64206bce89e15ce38e59c112ba6..6e516589f0edb4dfec78f9ff5493c06ee25418f0 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
@@ -14,6 +14,7 @@ properties:
     oneOf:
       - enum:
           - qcom,sa8775p-pcie-ep
+          - qcom,sar2130p-pcie-ep
           - qcom,sdx55-pcie-ep
           - qcom,sm8450-pcie-ep
       - items:
@@ -44,11 +45,11 @@ properties:
 
   clocks:
     minItems: 5
-    maxItems: 8
+    maxItems: 9
 
   clock-names:
     minItems: 5
-    maxItems: 8
+    maxItems: 9
 
   qcom,perst-regs:
     description: Reference to a syscon representing TCSR followed by the two
@@ -129,6 +130,45 @@ required:
 
 allOf:
   - $ref: pci-ep.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,sar2130p-pcie-ep
+    then:
+      properties:
+        reg:
+          maxItems: 7
+        reg-names:
+          maxItems: 7
+        clocks:
+          items:
+            - description: PCIe Auxiliary clock
+            - description: PCIe CFG AHB clock
+            - description: PCIe Master AXI clock
+            - description: PCIe Slave AXI clock
+            - description: PCIe Slave Q2A AXI clock
+            - description: PCIe DDRSS SF TBU clock
+            - description: PCIe AGGRE NOC AXI clock
+            - description: PCIe CFG NOC AXI clock
+            - description: PCIe QMIP AHB clock
+        clock-names:
+          items:
+            - const: aux
+            - const: cfg
+            - const: bus_master
+            - const: bus_slave
+            - const: slave_q2a
+            - const: ddrss_sf_tbu
+            - const: aggre_noc_axi
+            - const: cnoc_sf_axi
+            - const: qmip_pcie_ahb
+        interrupts:
+          maxItems: 3
+        interrupt-names:
+          maxItems: 3
+
   - if:
       properties:
         compatible:

-- 
2.39.5