mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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1c0ff333f2
Freescale i.MX8qxp Display Controller is implemented as construction set of building blocks with unified concept and standardized interfaces. Document all existing processing units. Signed-off-by: Liu Ying <victor.liu@nxp.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250414035028.1561475-2-victor.liu@nxp.com
46 lines
1.2 KiB
YAML
46 lines
1.2 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-dither.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Freescale i.MX8qxp Display Controller Dither Unit
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description: |
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The unit can increase the physical color resolution of a display from 5, 6, 7
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or 8 bits per RGB channel to a virtual resolution of 10 bits. The physical
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resolution can be set individually for each channel.
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The resolution is increased by mixing the two physical colors that are nearest
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to the virtual color code in a variable ratio either by time (temporal
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dithering) or by position (spatial dithering).
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An optimized algorithm for temporal dithering minimizes noise artifacts on the
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output image.
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The dither operation can be individually enabled or disabled for each pixel
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using the alpha input bit.
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maintainers:
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- Liu Ying <victor.liu@nxp.com>
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properties:
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compatible:
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const: fsl,imx8qxp-dc-dither
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reg:
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maxItems: 1
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required:
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- compatible
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- reg
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additionalProperties: false
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examples:
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- |
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dither@5618c400 {
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compatible = "fsl,imx8qxp-dc-dither";
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reg = <0x5618c400 0x14>;
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};
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