summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-dither.yaml
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-dither.yaml')
-rw-r--r--Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-dither.yaml45
1 files changed, 45 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-dither.yaml b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-dither.yaml
new file mode 100644
index 000000000000..8e4468d91836
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/imx/fsl,imx8qxp-dc-dither.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-dither.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Display Controller Dither Unit
+
+description: |
+ The unit can increase the physical color resolution of a display from 5, 6, 7
+ or 8 bits per RGB channel to a virtual resolution of 10 bits. The physical
+ resolution can be set individually for each channel.
+
+ The resolution is increased by mixing the two physical colors that are nearest
+ to the virtual color code in a variable ratio either by time (temporal
+ dithering) or by position (spatial dithering).
+
+ An optimized algorithm for temporal dithering minimizes noise artifacts on the
+ output image.
+
+ The dither operation can be individually enabled or disabled for each pixel
+ using the alpha input bit.
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-dc-dither
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ dither@5618c400 {
+ compatible = "fsl,imx8qxp-dc-dither";
+ reg = <0x5618c400 0x14>;
+ };