linux-kernel - [PATCH 1/1] spi: dt-bindings: add nxp,lpc3220-spi.yaml

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Message-Id: <20250625215255.2640538-1-Frank.Li@nxp.com>
Date: Wed, 25 Jun 2025 17:52:54 -0400
From: Frank Li <Frank.Li@....com>
To: Mark Brown <broonie@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-spi@...r.kernel.org (open list:SPI SUBSYSTEM),
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
	linux-kernel@...r.kernel.org (open list)
Cc: imx@...ts.linux.dev
Subject: [PATCH 1/1] spi: dt-bindings: add nxp,lpc3220-spi.yaml

Add lpc3220 spi controller binding doc to fix below CHECK_DTBS warning:
  arch/arm/boot/dts/nxp/lpc/lpc3250-ea3250.dtb: /ahb/apb/spi@...88000: failed to match any schema with compatible: ['nxp,lpc3220-spi']

Signed-off-by: Frank Li <Frank.Li@....com>
---
 .../bindings/spi/nxp,lpc3220-spi.yaml         | 44 +++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/nxp,lpc3220-spi.yaml

diff --git a/Documentation/devicetree/bindings/spi/nxp,lpc3220-spi.yaml b/Documentation/devicetree/bindings/spi/nxp,lpc3220-spi.yaml
new file mode 100644
index 0000000000000..d5f780912f21e
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/nxp,lpc3220-spi.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/nxp,lpc3220-spi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP LPC3220 SPI controller
+
+maintainers:
+  - Frank Li <Frank.Li@....com>
+
+properties:
+  compatible:
+    enum:
+      - nxp,lpc3220-spi
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+allOf:
+  - $ref: spi-controller.yaml#
+
+unevaluatedProperties: false
+
+required:
+  - compatible
+  - reg
+  - clocks
+
+examples:
+  - |
+    #include <dt-bindings/clock/lpc32xx-clock.h>
+
+    spi@...88000 {
+        compatible = "nxp,lpc3220-spi";
+        reg = <0x20088000 0x1000>;
+        clocks = <&clk LPC32XX_CLK_SPI1>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+    };
+
-- 
2.34.1