[PATCH 1/2] dt-bindings: spi: Add for Nuvoton MA35D1 SoC QSPI Controller

[Chi-Wen Weng <cwweng.linux@gmail.com>]

Signed-off-by: Chi-Wen Weng <cwweng.linux@gmail.com>
---
 .../bindings/spi/nuvoton,ma35d1-qspi.yaml     | 61 +++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/nuvoton,ma35d1-qspi.yaml

diff --git a/Documentation/devicetree/bindings/spi/nuvoton,ma35d1-qspi.yaml b/Documentation/devicetree/bindings/spi/nuvoton,ma35d1-qspi.yaml
new file mode 100644
index 000000000000..f7b9cb52d8e5
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/nuvoton,ma35d1-qspi.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/nuvoton,ma35d1-qspi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton MA35D1 Quad SPI Controller
+
+maintainers:
+  - Chi-Wen Weng <cwweng@nuvoton.com>
+
+allOf:
+  - $ref: spi-controller.yaml#
+
+properties:
+  compatible:
+    const: nuvoton,ma35d1-qspi
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/nuvoton,ma35d1-clk.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        spi@40680000 {
+            compatible = "nuvoton,ma35d1-qspi";
+            reg = <0x0 0x40680000 0x0 0x100>;
+            interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
+            clocks = <&clk QSPI0_GATE>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            flash@0 {
+                compatible = "jedec,spi-nor";
+                spi-max-frequency = <30000000>;
+                reg = <0>;
+                spi-rx-bus-width = <4>;
+                spi-tx-bus-width = <1>;
+            };
+        };
+    };
+
-- 
2.25.1