summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/display/arm,hdlcd.yaml
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--Documentation/devicetree/bindings/display/arm,hdlcd.yaml89
1 files changed, 89 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/arm,hdlcd.yaml b/Documentation/devicetree/bindings/display/arm,hdlcd.yaml
new file mode 100644
index 000000000..a2670258c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/arm,hdlcd.yaml
@@ -0,0 +1,89 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/arm,hdlcd.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm HDLCD display controller binding
+
+maintainers:
+ - Liviu Dudau <Liviu.Dudau@arm.com>
+ - Andre Przywara <andre.przywara@arm.com>
+
+description:
+ The Arm HDLCD is a display controller found on several development platforms
+ produced by ARM Ltd and in more modern of its Fast Models. The HDLCD is an
+ RGB streamer that reads the data from a framebuffer and sends it to a single
+ digital encoder (DVI or HDMI).
+
+properties:
+ compatible:
+ const: arm,hdlcd
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clock-names:
+ const: pxlclk
+
+ clocks:
+ maxItems: 1
+ description: The input reference for the pixel clock.
+
+ memory-region:
+ maxItems: 1
+ description:
+ Phandle to a node describing memory to be used for the framebuffer.
+ If not present, the framebuffer may be located anywhere in memory.
+
+ iommus:
+ maxItems: 1
+
+ port:
+ $ref: /schemas/graph.yaml#/properties/port
+ unevaluatedProperties: false
+ description:
+ Output endpoint of the controller, connecting the LCD panel signals.
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - port
+
+examples:
+ - |
+ hdlcd@2b000000 {
+ compatible = "arm,hdlcd";
+ reg = <0x2b000000 0x1000>;
+ interrupts = <0 85 4>;
+ clocks = <&oscclk5>;
+ clock-names = "pxlclk";
+ port {
+ hdlcd_output: endpoint {
+ remote-endpoint = <&hdmi_enc_input>;
+ };
+ };
+ };
+
+ /* HDMI encoder on I2C bus */
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ hdmi-transmitter@70 {
+ compatible = "nxp,tda998x";
+ reg = <0x70>;
+ port {
+ hdmi_enc_input: endpoint {
+ remote-endpoint = <&hdlcd_output>;
+ };
+ };
+ };
+ };
+...