Commit 7f7b9455 authored by Jacopo Mondi's avatar Jacopo Mondi Committed by Laurent Pinchart

dt-bindings: display: renesas,cmm: Add R-Car CMM documentation

Add device tree bindings documentation for the Renesas R-Car Display
Unit Color Management Module.

CMM is the image enhancement module available on each R-Car DU video
channel on R-Car Gen2 and Gen3 SoCs (V3H and V3M excluded).
Reviewed-by: default avatarKieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarJacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
parent d1eef1c6
# SPDX-License-Identifier: GPL-2.0-only
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/renesas,cmm.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Renesas R-Car Color Management Module (CMM)
maintainers:
- Laurent Pinchart <laurent.pinchart@ideasonboard.com>
- Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
- Jacopo Mondi <jacopo+renesas@jmondi.org>
description: |+
Renesas R-Car color management module connected to R-Car DU video channels.
It provides image enhancement functions such as 1-D look-up tables (LUT),
3-D look-up tables (CLU), 1D-histogram generation (HGO), and color
space conversion (CSC).
properties:
compatible:
oneOf:
- items:
- enum:
- renesas,r8a7795-cmm
- renesas,r8a7796-cmm
- renesas,r8a77965-cmm
- renesas,r8a77990-cmm
- renesas,r8a77995-cmm
- const: renesas,rcar-gen3-cmm
- items:
- const: renesas,rcar-gen2-cmm
reg:
maxItems: 1
clocks:
maxItems: 1
resets:
maxItems: 1
power-domains:
maxItems: 1
required:
- compatible
- reg
- clocks
- resets
- power-domains
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/r8a7796-cpg-mssr.h>
#include <dt-bindings/power/r8a7796-sysc.h>
cmm0: cmm@fea40000 {
compatible = "renesas,r8a7796-cmm",
"renesas,rcar-gen3-cmm";
reg = <0 0xfea40000 0 0x1000>;
power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
clocks = <&cpg CPG_MOD 711>;
resets = <&cpg 711>;
};
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