[PATCH v2 1/2] dt-bindings: spi: add loongson spi

[Yinbo Zhu <zhuyinbo@loongson.cn>]

Add the Loongson platform spi binding with DT schema format using
json-schema.

Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn>
---
 .../bindings/spi/loongson,ls-spi.yaml         | 44 +++++++++++++++++++
 MAINTAINERS                                   |  6 +++
 2 files changed, 50 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/loongson,ls-spi.yaml

diff --git a/Documentation/devicetree/bindings/spi/loongson,ls-spi.yaml b/Documentation/devicetree/bindings/spi/loongson,ls-spi.yaml
new file mode 100644
index 000000000000..936b8dc82ce8
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/loongson,ls-spi.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/loongson,ls-spi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Loongson SPI controller
+
+maintainers:
+  - Yinbo Zhu <zhuyinbo@loongson.cn>
+
+allOf:
+  - $ref: /schemas/spi/spi-controller.yaml#
+
+properties:
+  compatible:
+    enum:
+      - loongson,ls2k-spi
+      - loongson,ls7a-spi
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    minItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/loongson,ls2k-clk.h>
+    spi0: spi@1fff0220{
+        compatible = "loongson,ls2k-spi";
+        reg = <0x1fff0220 0x10>;
+        clocks = <&clk LOONGSON2_BOOT_CLK>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 25a0981c74b6..9bc2158c735d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -12157,6 +12157,12 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml
 F:	include/dt-bindings/clock/loongson,ls2k-clk.h
 
+LOONGSON SPI DRIVER
+M:	Yinbo Zhu <zhuyinbo@loongson.cn>
+L:	linux-spi@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/spi/loongson,ls-spi.yaml
+
 LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI)
 M:	Sathya Prakash <sathya.prakash@broadcom.com>
 M:	Sreekanth Reddy <sreekanth.reddy@broadcom.com>
-- 
2.20.1