Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/display/imx/nxp,imx8mq-dcss.yaml
Extension
.yaml
Size
3668 bytes
Lines
108
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

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Annotated Snippet

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright 2019 NXP
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/imx/nxp,imx8mq-dcss.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: iMX8MQ Display Controller Subsystem (DCSS)

maintainers:
  - Laurentiu Palcu <laurentiu.palcu@nxp.com>

description:

  The DCSS (display controller sub system) is used to source up to three
  display buffers, compose them, and drive a display using HDMI 2.0a(with HDCP
  2.2) or MIPI-DSI. The DCSS is intended to support up to 4kp60 displays. HDR10
  image processing capabilities are included to provide a solution capable of
  driving next generation high dynamic range displays.

properties:
  compatible:
    const: nxp,imx8mq-dcss

  reg:
    items:
      - description: DCSS base address and size, up to IRQ steer start
      - description: DCSS BLKCTL base address and size

  interrupts:
    items:
      - description: Context loader completion and error interrupt
      - description: DTG interrupt used to signal context loader trigger time
      - description: DTG interrupt for Vblank

  interrupt-names:
    items:
      - const: ctxld
      - const: ctxld_kick
      - const: vblank

  clocks:
    items:
      - description: Display APB clock for all peripheral PIO access interfaces
      - description: Display AXI clock needed by DPR, Scaler, RTRAM_CTRL
      - description: RTRAM clock
      - description: Pixel clock, can be driven either by HDMI phy clock or MIPI
      - description: DTRC clock, needed by video decompressor

  clock-names:
    items:
      - const: apb
      - const: axi
      - const: rtrm
      - const: pix
      - const: dtrc

  assigned-clocks:
    items:
      - description: Phandle and clock specifier of IMX8MQ_CLK_DISP_AXI_ROOT
      - description: Phandle and clock specifier of IMX8MQ_CLK_DISP_RTRM
      - description: Phandle and clock specifier of either IMX8MQ_VIDEO2_PLL1_REF_SEL or
                     IMX8MQ_VIDEO_PLL1_REF_SEL

  assigned-clock-parents:
    items:
      - description: Phandle and clock specifier of IMX8MQ_SYS1_PLL_800M
      - description: Phandle and clock specifier of IMX8MQ_SYS1_PLL_800M
      - description: Phandle and clock specifier of IMX8MQ_CLK_27M

Annotation

Implementation Notes