[PATCH 6/7] dt-bindings: soc: imx: add missing iomuxc gpr binding

[Dong Aisheng]

The General Purpose Registers IOMUXC_GPR are used to select operating
modes for general features in the SoC, usually not related to the IOMUX
itself.

This binding doc is generated based on the exist usage in dts
in order to fix dt schema check failures.

Cc: Rob Herring <robh+dt at kernel.org>
Cc: Shawn Guo <shawnguo at kernel.org>
Signed-off-by: Dong Aisheng <aisheng.dong at nxp.com>
---
 .../devicetree/bindings/soc/imx/fsl,gpr.yaml  | 69 +++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/imx/fsl,gpr.yaml

diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,gpr.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,gpr.yaml
new file mode 100644
index 000000000000..832b6b7e7c33
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/imx/fsl,gpr.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/imx/fsl,gpr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale IOMUX GPR binding
+
+maintainers:
+  - Dong Aisheng <aisheng.dong at nxp.com>
+
+description: |
+  32-bit general purpose registers - several (GPR0 to GPRn) 32-bit
+  registers according to SoC requirements for any usage.
+
+  The General Purpose Registers IOMUXC_GPR are used to select operating
+  modes for general features in the SoC, usually not related to the IOMUX
+  itself.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - const: fsl,imx53-iomuxc-gpr
+          - const: syscon
+      - items:
+          - const: fsl,imx6q-iomuxc-gpr
+          - const: syscon
+          - const: simple-mfd
+      - items:
+          - enum:
+              - fsl,imx6sl-iomuxc-gpr
+              - fsl,imx6sll-iomuxc-gpr
+              - fsl,imx6sx-iomuxc-gpr
+              - fsl,imx6ul-iomuxc-gpr
+              - fsl,imx7d-iomuxc-gpr
+          - const: fsl,imx6q-iomuxc-gpr
+          - const: syscon
+      - items:
+          - const: fsl,imx7d-iomuxc-gpr
+          - const: fsl,imx6q-iomuxc-gpr
+          - const: syscon
+          - const: simple-mfd
+      - items:
+          - const: fsl,imx8mq-iomuxc-gpr
+          - const: fsl,imx6q-iomuxc-gpr
+          - const: syscon
+          - const: simple-mfd
+      - items:
+          - enum:
+              - fsl,imx8mm-iomuxc-gpr
+              - fsl,imx8mn-iomuxc-gpr
+              - fsl,imx8mp-iomuxc-gpr
+          - const: syscon
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: true
+
+examples:
+  - |
+    gpr: iomuxc-gpr at 20e0000 {
+        compatible = "fsl,imx6q-iomuxc-gpr", "syscon", "simple-mfd";
+        reg = <0x20e0000 0x38>;
+    };
-- 
2.25.1