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Message-ID: <20251014152935.3782463-1-robh@kernel.org>
Date: Tue, 14 Oct 2025 10:29:34 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Avi Fishman <avifishman70@...il.com>,
Tomer Maimon <tmaimon77@...il.com>,
Tali Perry <tali.perry1@...il.com>,
Patrick Venture <venture@...gle.com>,
Nancy Yuen <yuenn@...gle.com>,
Benjamin Fair <benjaminfair@...gle.com>,
Corey Minyard <corey@...yard.net>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>
Cc: openbmc@...ts.ozlabs.org,
openipmi-developer@...ts.sourceforge.net,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: ipmi: Convert nuvoton,npcm750-kcs-bmc to DT schema
Convert the nuvoton,npcm750-kcs-bmc binding to DT schema format. It's a
straight-forward conversion.
Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
.../bindings/ipmi/npcm7xx-kcs-bmc.txt | 40 --------------
.../ipmi/nuvoton,npcm750-kcs-bmc.yaml | 55 +++++++++++++++++++
2 files changed, 55 insertions(+), 40 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/ipmi/npcm7xx-kcs-bmc.txt
create mode 100644 Documentation/devicetree/bindings/ipmi/nuvoton,npcm750-kcs-bmc.yaml
diff --git a/Documentation/devicetree/bindings/ipmi/npcm7xx-kcs-bmc.txt b/Documentation/devicetree/bindings/ipmi/npcm7xx-kcs-bmc.txt
deleted file mode 100644
index 4fda76e63396..000000000000
--- a/Documentation/devicetree/bindings/ipmi/npcm7xx-kcs-bmc.txt
+++ /dev/null
@@ -1,40 +0,0 @@
-* Nuvoton NPCM KCS (Keyboard Controller Style) IPMI interface
-
-The Nuvoton SOCs (NPCM) are commonly used as BMCs
-(Baseboard Management Controllers) and the KCS interface can be
-used to perform in-band IPMI communication with their host.
-
-Required properties:
-- compatible : should be one of
- "nuvoton,npcm750-kcs-bmc"
- "nuvoton,npcm845-kcs-bmc", "nuvoton,npcm750-kcs-bmc"
-- interrupts : interrupt generated by the controller
-- kcs_chan : The KCS channel number in the controller
-
-Example:
-
- lpc_kcs: lpc_kcs@...07000 {
- compatible = "nuvoton,npcm750-lpc-kcs", "simple-mfd", "syscon";
- reg = <0xf0007000 0x40>;
- reg-io-width = <1>;
-
- #address-cells = <1>;
- #size-cells = <1>;
- ranges = <0x0 0xf0007000 0x40>;
-
- kcs1: kcs1@0 {
- compatible = "nuvoton,npcm750-kcs-bmc";
- reg = <0x0 0x40>;
- interrupts = <0 9 4>;
- kcs_chan = <1>;
- status = "disabled";
- };
-
- kcs2: kcs2@0 {
- compatible = "nuvoton,npcm750-kcs-bmc";
- reg = <0x0 0x40>;
- interrupts = <0 9 4>;
- kcs_chan = <2>;
- status = "disabled";
- };
- };
diff --git a/Documentation/devicetree/bindings/ipmi/nuvoton,npcm750-kcs-bmc.yaml b/Documentation/devicetree/bindings/ipmi/nuvoton,npcm750-kcs-bmc.yaml
new file mode 100644
index 000000000000..fc5df1c5e3bc
--- /dev/null
+++ b/Documentation/devicetree/bindings/ipmi/nuvoton,npcm750-kcs-bmc.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ipmi/nuvoton,npcm750-kcs-bmc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton NPCM KCS BMC
+
+maintainers:
+ - Avi Fishman <avifishman70@...il.com>
+ - Tomer Maimon <tmaimon77@...il.com>
+ - Tali Perry <tali.perry1@...il.com>
+
+description:
+ The Nuvoton SOCs (NPCM) are commonly used as BMCs (Baseboard Management
+ Controllers) and the KCS interface can be used to perform in-band IPMI
+ communication with their host.
+
+properties:
+ compatible:
+ oneOf:
+ - const: nuvoton,npcm750-kcs-bmc
+ - items:
+ - enum:
+ - nuvoton,npcm845-kcs-bmc
+ - const: nuvoton,npcm750-kcs-bmc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ kcs_chan:
+ description: The KCS channel number in the controller
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1
+ maximum: 3
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - kcs_chan
+
+additionalProperties: false
+
+examples:
+ - |
+ kcs@0 {
+ compatible = "nuvoton,npcm750-kcs-bmc";
+ reg = <0x0 0x40>;
+ interrupts = <9 4>;
+ kcs_chan = <1>;
+ };
--
2.51.0
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