linux-kernel - [PATCH v13 1/4] dt-bindings: PCI: qcom: Add MHI registers for IPQ9574

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Message-ID: <20250313080600.1719505-2-quic_varada@quicinc.com>
Date: Thu, 13 Mar 2025 13:35:57 +0530
From: Varadarajan Narayanan <quic_varada@...cinc.com>
To: <bhelgaas@...gle.com>, <lpieralisi@...nel.org>, <kw@...ux.com>,
        <manivannan.sadhasivam@...aro.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>, <andersson@...nel.org>,
        <konradybcio@...nel.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-pci@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC: Varadarajan Narayanan <quic_varada@...cinc.com>
Subject: [PATCH v13 1/4] dt-bindings: PCI: qcom: Add MHI registers for IPQ9574

Append the MHI register range to IPQ9574. This is an optional range used
by the dwc controller driver to print debug stats via the debugfs file
'link_transition_count'.

Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
---
v13: Fix 'minItems' for reg-names.
     Update commit log
     Remove 'Fixes'

v12: New patch introduced in this patchset. MHI range was missed in the
     initial post
---
 Documentation/devicetree/bindings/pci/qcom,pcie.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
index 8f628939209e..469b99fa0f0e 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
@@ -175,14 +175,16 @@ allOf:
       properties:
         reg:
           minItems: 5
-          maxItems: 5
+          maxItems: 6
         reg-names:
+          minItems: 5
           items:
             - const: dbi # DesignWare PCIe registers
             - const: elbi # External local bus interface registers
             - const: atu # ATU address space
             - const: parf # Qualcomm specific registers
             - const: config # PCIe configuration space
+            - const: mhi # MHI registers
 
   - if:
       properties:
-- 
2.34.1