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Message-ID: <20250710180757.2970583-1-robh@kernel.org>
Date: Thu, 10 Jul 2025 13:07:55 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Toan Le <toan@...amperecomputing.com>,
Thomas Gleixner <tglx@...utronix.de>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Lorenzo Pieralisi <lpieralisi@...nel.org>,
Krzysztof Wilczyński <kwilczynski@...nel.org>,
Manivannan Sadhasivam <mani@...nel.org>,
Bjorn Helgaas <bhelgaas@...gle.com>
Cc: linux-pci@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org
Subject: [PATCH] dt-bindings: interrupt-controller: Convert apm,xgene1-msi to DT schema
Convert the Applied Micro X-Gene MSI controller binding to DT schema
format. MSI controllers go in interrupt-controller directory so move the
schema there.
Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
.../interrupt-controller/apm,xgene1-msi.yaml | 54 +++++++++++++++
.../devicetree/bindings/pci/xgene-pci-msi.txt | 68 -------------------
MAINTAINERS | 2 +-
3 files changed, 55 insertions(+), 69 deletions(-)
create mode 100644 Documentation/devicetree/bindings/interrupt-controller/apm,xgene1-msi.yaml
delete mode 100644 Documentation/devicetree/bindings/pci/xgene-pci-msi.txt
diff --git a/Documentation/devicetree/bindings/interrupt-controller/apm,xgene1-msi.yaml b/Documentation/devicetree/bindings/interrupt-controller/apm,xgene1-msi.yaml
new file mode 100644
index 000000000000..49db952697f3
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/apm,xgene1-msi.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/apm,xgene1-msi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: AppliedMicro X-Gene v1 PCIe MSI controller
+
+maintainers:
+ - Toan Le <toan@...amperecomputing.com>
+
+properties:
+ compatible:
+ const: apm,xgene1-msi
+
+ msi-controller: true
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 16
+
+required:
+ - compatible
+ - msi-controller
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ msi@...00000 {
+ compatible = "apm,xgene1-msi";
+ msi-controller;
+ reg = <0x79000000 0x900000>;
+ interrupts = <0x0 0x10 0x4>,
+ <0x0 0x11 0x4>,
+ <0x0 0x12 0x4>,
+ <0x0 0x13 0x4>,
+ <0x0 0x14 0x4>,
+ <0x0 0x15 0x4>,
+ <0x0 0x16 0x4>,
+ <0x0 0x17 0x4>,
+ <0x0 0x18 0x4>,
+ <0x0 0x19 0x4>,
+ <0x0 0x1a 0x4>,
+ <0x0 0x1b 0x4>,
+ <0x0 0x1c 0x4>,
+ <0x0 0x1d 0x4>,
+ <0x0 0x1e 0x4>,
+ <0x0 0x1f 0x4>;
+ };
diff --git a/Documentation/devicetree/bindings/pci/xgene-pci-msi.txt b/Documentation/devicetree/bindings/pci/xgene-pci-msi.txt
deleted file mode 100644
index 85d9b95234f7..000000000000
--- a/Documentation/devicetree/bindings/pci/xgene-pci-msi.txt
+++ /dev/null
@@ -1,68 +0,0 @@
-* AppliedMicro X-Gene v1 PCIe MSI controller
-
-Required properties:
-
-- compatible: should be "apm,xgene1-msi" to identify
- X-Gene v1 PCIe MSI controller block.
-- msi-controller: indicates that this is an X-Gene v1 PCIe MSI controller node
-- reg: physical base address (0x79000000) and length (0x900000) for controller
- registers. These registers include the MSI termination address and data
- registers as well as the MSI interrupt status registers.
-- reg-names: not required
-- interrupts: A list of 16 interrupt outputs of the controller, starting from
- interrupt number 0x10 to 0x1f.
-- interrupt-names: not required
-
-Each PCIe node needs to have property msi-parent that points to an MSI
-controller node
-
-Examples:
-
-SoC DTSI:
-
- + MSI node:
- msi@...00000 {
- compatible = "apm,xgene1-msi";
- msi-controller;
- reg = <0x00 0x79000000 0x0 0x900000>;
- interrupts = <0x0 0x10 0x4>
- <0x0 0x11 0x4>
- <0x0 0x12 0x4>
- <0x0 0x13 0x4>
- <0x0 0x14 0x4>
- <0x0 0x15 0x4>
- <0x0 0x16 0x4>
- <0x0 0x17 0x4>
- <0x0 0x18 0x4>
- <0x0 0x19 0x4>
- <0x0 0x1a 0x4>
- <0x0 0x1b 0x4>
- <0x0 0x1c 0x4>
- <0x0 0x1d 0x4>
- <0x0 0x1e 0x4>
- <0x0 0x1f 0x4>;
- };
-
- + PCIe controller node with msi-parent property pointing to MSI node:
- pcie0: pcie@...b0000 {
- device_type = "pci";
- compatible = "apm,xgene-storm-pcie", "apm,xgene-pcie";
- #interrupt-cells = <1>;
- #size-cells = <2>;
- #address-cells = <3>;
- reg = < 0x00 0x1f2b0000 0x0 0x00010000 /* Controller registers */
- 0xe0 0xd0000000 0x0 0x00040000>; /* PCI config space */
- reg-names = "csr", "cfg";
- ranges = <0x01000000 0x00 0x00000000 0xe0 0x10000000 0x00 0x00010000 /* io */
- 0x02000000 0x00 0x80000000 0xe1 0x80000000 0x00 0x80000000>; /* mem */
- dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000
- 0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>;
- interrupt-map-mask = <0x0 0x0 0x0 0x7>;
- interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0xc2 0x1
- 0x0 0x0 0x0 0x2 &gic 0x0 0xc3 0x1
- 0x0 0x0 0x0 0x3 &gic 0x0 0xc4 0x1
- 0x0 0x0 0x0 0x4 &gic 0x0 0xc5 0x1>;
- dma-coherent;
- clocks = <&pcie0clk 0>;
- msi-parent= <&msi>;
- };
diff --git a/MAINTAINERS b/MAINTAINERS
index d0df1130d5ff..3699fe4be6b6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19146,7 +19146,7 @@ M: Toan Le <toan@...amperecomputing.com>
L: linux-pci@...r.kernel.org
L: linux-arm-kernel@...ts.infradead.org (moderated for non-subscribers)
S: Maintained
-F: Documentation/devicetree/bindings/pci/xgene-pci-msi.txt
+F: Documentation/devicetree/bindings/interrupt-controller/apm,xgene1-msi.yaml
F: drivers/pci/controller/pci-xgene-msi.c
PCI NATIVE HOST BRIDGE AND ENDPOINT DRIVERS
--
2.47.2
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