mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-09-01 06:39:05 +00:00
b71d3ace77
i.MX8qxp Display Controller contains a blit engine for raster graphics. It may read up to 3 source images from memory and computes one destination image from it, which is written back to memory. Signed-off-by: Liu Ying <victor.liu@nxp.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250414035028.1561475-3-victor.liu@nxp.com
205 lines
4.5 KiB
YAML
205 lines
4.5 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/display/imx/fsl,imx8qxp-dc-blit-engine.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Freescale i.MX8qxp Display Controller Blit Engine
|
|
|
|
description: |
|
|
A blit operation (block based image transfer) reads up to 3 source images
|
|
from memory and computes one destination image from it, which is written
|
|
back to memory. The following basic operations are supported:
|
|
|
|
* Buffer Fill
|
|
Fills a buffer with constant color
|
|
|
|
* Buffer Copy
|
|
Copies one source to a destination buffer.
|
|
|
|
* Image Blend
|
|
Combines two source images by a blending equation and writes result to
|
|
destination (which can be one of the sources).
|
|
|
|
* Image Rop2/3
|
|
Combines up to three source images by a logical equation (raster operation)
|
|
and writes result to destination (which can be one of the sources).
|
|
|
|
* Image Flip
|
|
Mirrors the source image in horizontal and/or vertical direction.
|
|
|
|
* Format Convert
|
|
Convert between the supported color and buffer formats.
|
|
|
|
* Color Transform
|
|
Modify colors by linear or non-linear transformations.
|
|
|
|
* Image Scale
|
|
Changes size of the source image.
|
|
|
|
* Image Rotate
|
|
Rotates the source image by any angle.
|
|
|
|
* Image Filter
|
|
Performs an FIR filter operation on the source image.
|
|
|
|
* Image Warp
|
|
Performs a re-sampling of the source image with any pattern. The sample
|
|
point positions are read from a compressed coordinate buffer.
|
|
|
|
* Buffer Pack
|
|
Writes an image with color components stored in up to three different
|
|
buffers (planar formats) into a single buffer (packed format).
|
|
|
|
* Chroma Resample
|
|
Converts between different YUV formats that differ in chroma sampling rate
|
|
(4:4:4, 4:2:2, 4:2:0).
|
|
|
|
maintainers:
|
|
- Liu Ying <victor.liu@nxp.com>
|
|
|
|
properties:
|
|
compatible:
|
|
const: fsl,imx8qxp-dc-blit-engine
|
|
|
|
reg:
|
|
maxItems: 2
|
|
|
|
reg-names:
|
|
items:
|
|
- const: pec
|
|
- const: cfg
|
|
|
|
"#address-cells":
|
|
const: 1
|
|
|
|
"#size-cells":
|
|
const: 1
|
|
|
|
ranges: true
|
|
|
|
patternProperties:
|
|
"^blitblend@[0-9a-f]+$":
|
|
type: object
|
|
additionalProperties: true
|
|
|
|
properties:
|
|
compatible:
|
|
const: fsl,imx8qxp-dc-blitblend
|
|
|
|
"^clut@[0-9a-f]+$":
|
|
type: object
|
|
additionalProperties: true
|
|
|
|
properties:
|
|
compatible:
|
|
const: fsl,imx8qxp-dc-clut
|
|
|
|
"^fetchdecode@[0-9a-f]+$":
|
|
type: object
|
|
additionalProperties: true
|
|
|
|
properties:
|
|
compatible:
|
|
const: fsl,imx8qxp-dc-fetchdecode
|
|
|
|
"^fetcheco@[0-9a-f]+$":
|
|
type: object
|
|
additionalProperties: true
|
|
|
|
properties:
|
|
compatible:
|
|
const: fsl,imx8qxp-dc-fetcheco
|
|
|
|
"^fetchwarp@[0-9a-f]+$":
|
|
type: object
|
|
additionalProperties: true
|
|
|
|
properties:
|
|
compatible:
|
|
const: fsl,imx8qxp-dc-fetchwarp
|
|
|
|
"^filter@[0-9a-f]+$":
|
|
type: object
|
|
additionalProperties: true
|
|
|
|
properties:
|
|
compatible:
|
|
const: fsl,imx8qxp-dc-filter
|
|
|
|
"^hscaler@[0-9a-f]+$":
|
|
type: object
|
|
additionalProperties: true
|
|
|
|
properties:
|
|
compatible:
|
|
const: fsl,imx8qxp-dc-hscaler
|
|
|
|
"^matrix@[0-9a-f]+$":
|
|
type: object
|
|
additionalProperties: true
|
|
|
|
properties:
|
|
compatible:
|
|
const: fsl,imx8qxp-dc-matrix
|
|
|
|
"^rop@[0-9a-f]+$":
|
|
type: object
|
|
additionalProperties: true
|
|
|
|
properties:
|
|
compatible:
|
|
const: fsl,imx8qxp-dc-rop
|
|
|
|
"^store@[0-9a-f]+$":
|
|
type: object
|
|
additionalProperties: true
|
|
|
|
properties:
|
|
compatible:
|
|
const: fsl,imx8qxp-dc-store
|
|
|
|
"^vscaler@[0-9a-f]+$":
|
|
type: object
|
|
additionalProperties: true
|
|
|
|
properties:
|
|
compatible:
|
|
const: fsl,imx8qxp-dc-vscaler
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- reg-names
|
|
- "#address-cells"
|
|
- "#size-cells"
|
|
- ranges
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
blit-engine@56180820 {
|
|
compatible = "fsl,imx8qxp-dc-blit-engine";
|
|
reg = <0x56180820 0x13c>, <0x56181000 0x3400>;
|
|
reg-names = "pec", "cfg";
|
|
#address-cells = <1>;
|
|
#size-cells = <1>;
|
|
ranges;
|
|
|
|
fetchdecode@56180820 {
|
|
compatible = "fsl,imx8qxp-dc-fetchdecode";
|
|
reg = <0x56180820 0x10>, <0x56181000 0x404>;
|
|
reg-names = "pec", "cfg";
|
|
};
|
|
|
|
store@56180940 {
|
|
compatible = "fsl,imx8qxp-dc-store";
|
|
reg = <0x56180940 0x1c>, <0x56184000 0x5c>;
|
|
reg-names = "pec", "cfg";
|
|
interrupt-parent = <&dc0_intc>;
|
|
interrupts = <0>, <1>, <2>;
|
|
interrupt-names = "shdload", "framecomplete", "seqcomplete";
|
|
};
|
|
};
|