fsl,imx8qxp-dc-dither.yaml

 1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 2%YAML 1.2
 3---
 4$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-dither.yaml#
 5$schema: http://devicetree.org/meta-schemas/core.yaml#
 6
 7title: Freescale i.MX8qxp Display Controller Dither Unit
 8
 9description: |
10  The unit can increase the physical color resolution of a display from 5, 6, 7
11  or 8 bits per RGB channel to a virtual resolution of 10 bits. The physical
12  resolution can be set individually for each channel.
13
14  The resolution is increased by mixing the two physical colors that are nearest
15  to the virtual color code in a variable ratio either by time (temporal
16  dithering) or by position (spatial dithering).
17
18  An optimized algorithm for temporal dithering minimizes noise artifacts on the
19  output image.
20
21  The dither operation can be individually enabled or disabled for each pixel
22  using the alpha input bit.
23
24maintainers:
25  - Liu Ying <victor.liu@nxp.com>
26
27properties:
28  compatible:
29    const: fsl,imx8qxp-dc-dither
30
31  reg:
32    maxItems: 1
33
34required:
35  - compatible
36  - reg
37
38additionalProperties: false
39
40examples:
41  - |
42    dither@5618c400 {
43        compatible = "fsl,imx8qxp-dc-dither";
44        reg = <0x5618c400 0x14>;
45    };