[PATCH v2 1/3] dt-bindings: display: Add Sitronix ST7571 panel

[Marcus Folkesson <marcus.folkesson@gmail.com>]

Sitronix ST7571 is a 4bit gray scale dot matrix LCD controller.

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
---
 .../bindings/display/sitronix,st7571.yaml          | 73 ++++++++++++++++++++++
 1 file changed, 73 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/sitronix,st7571.yaml b/Documentation/devicetree/bindings/display/sitronix,st7571.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..11575b820c59c5ada427fbb6b015c331215c8db6
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/sitronix,st7571.yaml
@@ -0,0 +1,73 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/sitronix,st7571.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sitronix ST7571 Display Panels
+
+maintainers:
+  - Marcus Folkesson <marcus.folkesson@gmail.com>
+
+description:
+  This binding is for display panels using a Sitronix ST7571 controller in I2C
+  mode.
+
+allOf:
+  - $ref: panel/panel-common.yaml#
+
+properties:
+  compatible:
+    const: sitronix,st7571
+
+  reg: true
+  reset-gpios: true
+  width-mm: true
+  height-mm: true
+
+  panel-timing:
+    $ref: panel/panel-timing.yaml#
+    description: |
+      The panel-timing node specifies the display resolution and timing
+      parameters. The hactive and vactive properties are mandatory.
+      The vback-porch property specifies the start line of the display.
+      The other properties should be set to zero.
+
+required:
+  - compatible
+  - reg
+  - reset-gpios
+  - width-mm
+  - height-mm
+  - panel-timing
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        display@3f {
+          compatible = "sitronix,st7571";
+          reg = <0x3f>;
+          reset-gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
+          width-mm = <37>;
+          height-mm = <27>;
+
+            panel-timing {
+                hactive = <128>;
+                vactive = <96>;
+                hback-porch = <0>;
+                vback-porch = <0>;
+                clock-frequency = <0>;
+                hfront-porch = <0>;
+                hsync-len = <0>;
+                vfront-porch = <0>;
+                vsync-len = <0>;
+            };
+        };
+    };

-- 
2.49.0