linux-kernel - [PATCH v1 1/4] dt-bindings: PCI: dwc: rockchip: Fix interrupt-names issue

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Message-Id: <20230616170022.76107-2-sebastian.reichel@collabora.com>
Date:   Fri, 16 Jun 2023 19:00:19 +0200
From:   Sebastian Reichel <sebastian.reichel@...labora.com>
To:     linux-pci@...r.kernel.org, linux-rockchip@...ts.infradead.org
Cc:     Jingoo Han <jingoohan1@...il.com>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Simon Xue <xxm@...k-chips.com>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Sebastian Reichel <sebastian.reichel@...labora.com>,
        kernel@...labora.com
Subject: [PATCH v1 1/4] dt-bindings: PCI: dwc: rockchip: Fix interrupt-names issue

The RK356x (and RK3588) have 5 ganged interrupts. For example the
"legacy" interrupt combines "inta/intb/intc/intd" with a register
providing the details.

Currently the binding is not specifying these interrupts resulting
in a bunch of errors for all rk356x boards using PCIe.

Fix this by specifying the interrupts and add them to the example
to prevent regressions.

Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
---
 .../bindings/pci/rockchip-dw-pcie.yaml         | 18 ++++++++++++++++++
 .../devicetree/bindings/pci/snps,dw-pcie.yaml  | 15 ++++++++++++++-
 2 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml
index 24c88942e59e..98e45d2d8dfe 100644
--- a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml
@@ -56,6 +56,17 @@ properties:
       - const: pclk
       - const: aux
 
+  interrupts:
+    maxItems: 5
+
+  interrupt-names:
+    items:
+      - const: sys
+      - const: pmc
+      - const: msg
+      - const: legacy
+      - const: err
+
   msi-map: true
 
   num-lanes: true
@@ -98,6 +109,7 @@ unevaluatedProperties: false
 
 examples:
   - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
 
     bus {
         #address-cells = <2>;
@@ -117,6 +129,12 @@ examples:
                           "aclk_dbi", "pclk",
                           "aux";
             device_type = "pci";
+            interrupts = <GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 159 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>,
+                         <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>;
+            interrupt-names = "sys", "pmc", "msg", "legacy", "err";
             linux,pci-domain = <2>;
             max-link-speed = <2>;
             msi-map = <0x2000 &its 0x2000 0x1000>;
diff --git a/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml b/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
index 1a83f0f65f19..9f605eb297f5 100644
--- a/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
@@ -193,9 +193,22 @@ properties:
           oneOf:
             - description: See native "app" IRQ for details
               enum: [ intr ]
+        - description: Combined Legacy A/B/C/D interrupt signal.
+          const: legacy
+        - description: Combined System interrupt signal.
+          const: sys
+        - description: Combined Power Management interrupt signal.
+          const: pmc
+        - description: Combined Message Received interrupt signal.
+          const: msg
+        - description: Combined Error interrupt signal.
+          const: err
+
     allOf:
       - contains:
-          const: msi
+          enum:
+            - msi
+            - msg
 
 additionalProperties: true
 
-- 
2.39.2