[PATCH 1/1] dt-bindings: spi: Add separate binding for dh,dhcom-board

[Frank.Li@oss.nxp.com]

From: Frank Li <Frank.Li@nxp.com>

The dh,dhcom-board SPI device uses spi-cpha and spi-cpol properties,
which are not permitted by the trivial-devices schema. Move it to a
dedicated binding file that references spi-peripheral-props.yaml and
explicitly allows those SPI mode properties.

Fixes below CHECK_DTBS warnings:
  arch/arm/boot/dts/nxp/imx/imx6ull-dhcor-maveo-box.dtb: spidev@0 (dh,dhcom-board): 'spi-cpha', 'spi-cpol' do not match any of the regexes: '^pinctrl-[0-9]+$'
        from schema $id: http://devicetree.org/schemas/trivial-devices.yaml

Assisted-by: LLM
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
 .../bindings/spi/dh,dhcom-board.yaml          | 46 +++++++++++++++++++
 .../devicetree/bindings/trivial-devices.yaml  |  2 -
 2 files changed, 46 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/spi/dh,dhcom-board.yaml

diff --git a/Documentation/devicetree/bindings/spi/dh,dhcom-board.yaml b/Documentation/devicetree/bindings/spi/dh,dhcom-board.yaml
new file mode 100644
index 0000000000000..ed213cbe9b04c
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/dh,dhcom-board.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/dh,dhcom-board.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: DH electronics GmbH on-board CPLD trivial SPI device
+
+maintainers:
+  - Marek Vasut <marex@denx.de>
+  - Frank Li <Frank.Li@nxp.com>
+
+allOf:
+  - $ref: spi-peripheral-props.yaml
+
+properties:
+  compatible:
+    const: dh,dhcom-board
+
+  reg:
+    maxItems: 1
+
+  spi-cpha: true
+
+  spi-cpol: true
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        cpld@0 {
+            compatible = "dh,dhcom-board";
+            reg = <0>;
+            spi-max-frequency = <1000000>;
+            spi-cpol;
+            spi-cpha;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
index a8b2b9deade4c..f3099e55b6f5a 100644
--- a/Documentation/devicetree/bindings/trivial-devices.yaml
+++ b/Documentation/devicetree/bindings/trivial-devices.yaml
@@ -119,8 +119,6 @@ properties:
           - devantech,srf10
             # DFRobot SEN0322 oxygen sensor
           - dfrobot,sen0322
-            # DH electronics GmbH on-board CPLD trivial SPI device
-          - dh,dhcom-board
             # DA9053: flexible system level PMIC with multicore support
           - dlg,da9053
             # DMARD05: 3-axis I2C Accelerometer
-- 
2.43.0