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 }; 46