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Subject[PATCH 2/2] dt-bindings: display: Add Loongson display controller
Date
This patch add a trival DT usages for loongson display controller found
in LS2k1000 SoC.

Signed-off-by: suijingfeng <suijingfeng@loongson.cn>
---
.../loongson/loongson,display-controller.yaml | 58 +++++++++++++++++++
1 file changed, 58 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/loongson/loongson,display-controller.yaml

diff --git a/Documentation/devicetree/bindings/display/loongson/loongson,display-controller.yaml b/Documentation/devicetree/bindings/display/loongson/loongson,display-controller.yaml
new file mode 100644
index 000000000000..98b78f449a80
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/loongson/loongson,display-controller.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/loongson/loongson,display-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Loongson Display Controller Device Tree Bindings
+
+maintainers:
+ - Sui Jingfeng <suijingfeng@loongson.cn>
+
+description: |+
+
+ The display controller is a PCI device, it has two display pipe.
+ For the DC in LS2K1000 each way has a DVO output interface which
+ provide RGB888 signals, vertical & horizontal synchronisations
+ and the pixel clock. Each CRTC is able to support 1920x1080@60Hz,
+ the maximum resolution is 2048x2048 according to the hardware spec.
+
+properties:
+ $nodename:
+ pattern: "^display-controller@[0-9a-f],[0-9a-f]$"
+
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - loongson,ls2k1000-dc
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ bus {
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <2>;
+
+ display-controller@6,0 {
+ compatible = "loongson,ls2k1000-dc";
+ reg = <0x3000 0x0 0x0 0x0 0x0>;
+ interrupts = <28 IRQ_TYPE_LEVEL_LOW>;
+ };
+ };
+
+...
--
2.34.1
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