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dt-bindings: display: rockchip: Add binding for VOP2 

The VOP2 is found on newer Rockchip SoCs like the rk3568 or the rk3566.
The binding differs slightly from the existing VOP binding, so add a new
binding file for it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Tested-by: Michael Riesch <michael.riesch@wolfvision.net>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220422072841.2206452-24-s.hauer@pengutronix.de
This commit is contained in:
Sascha Hauer 2022-04-22 09:28:40 +02:00 committed by Heiko Stuebner
parent f778f405fa
commit 74015e2650
1 changed files with 140 additions and 0 deletions
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Documentation/devicetree/bindings/display/rockchip/rockchip-vop2.yaml Normal file
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# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/rockchip/rockchip-vop2.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Rockchip SoC display controller (VOP2)
description:
VOP2 (Video Output Processor v2) is the display controller for the Rockchip
series of SoCs which transfers the image data from a video memory
buffer to an external LCD interface.
maintainers:
- Sandy Huang <hjc@rock-chips.com>
- Heiko Stuebner <heiko@sntech.de>
properties:
compatible:
enum:
- rockchip,rk3566-vop
- rockchip,rk3568-vop
reg:
minItems: 1
items:
- description:
Must contain one entry corresponding to the base address and length
of the register space.
- description:
Can optionally contain a second entry corresponding to
the CRTC gamma LUT address.
interrupts:
maxItems: 1
description:
The VOP interrupt is shared by several interrupt sources, such as
frame start (VSYNC), line flag and other status interrupts.
clocks:
items:
- description: Clock for ddr buffer transfer.
- description: Clock for the ahb bus to R/W the phy regs.
- description: Pixel clock for video port 0.
- description: Pixel clock for video port 1.
- description: Pixel clock for video port 2.
clock-names:
items:
- const: aclk
- const: hclk
- const: dclk_vp0
- const: dclk_vp1
- const: dclk_vp2
rockchip,grf:
$ref: /schemas/types.yaml#/definitions/phandle
description:
Phandle to GRF regs used for misc control
ports:
$ref: /schemas/graph.yaml#/properties/ports
properties:
port@0:
$ref: /schemas/graph.yaml#/properties/port
description:
Output endpoint of VP0
port@1:
$ref: /schemas/graph.yaml#/properties/port
description:
Output endpoint of VP1
port@2:
$ref: /schemas/graph.yaml#/properties/port
description:
Output endpoint of VP2
iommus:
maxItems: 1
power-domains:
maxItems: 1
required:
- compatible
- reg
- interrupts
- clocks
- clock-names
- ports
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/rk3568-cru.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/power/rk3568-power.h>
bus {
#address-cells = <2>;
#size-cells = <2>;
vop: vop@fe040000 {
compatible = "rockchip,rk3568-vop";
reg = <0x0 0xfe040000 0x0 0x3000>, <0x0 0xfe044000 0x0 0x1000>;
interrupts = <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru ACLK_VOP>,
<&cru HCLK_VOP>,
<&cru DCLK_VOP0>,
<&cru DCLK_VOP1>,
<&cru DCLK_VOP2>;
clock-names = "aclk",
"hclk",
"dclk_vp0",
"dclk_vp1",
"dclk_vp2";
power-domains = <&power RK3568_PD_VO>;
iommus = <&vop_mmu>;
vop_out: ports {
#address-cells = <1>;
#size-cells = <0>;
vp0: port@0 {
reg = <0>;
#address-cells = <1>;
#size-cells = <0>;
};
vp1: port@1 {
reg = <1>;
#address-cells = <1>;
#size-cells = <0>;
};
vp2: port@2 {
reg = <2>;
#address-cells = <1>;
#size-cells = <0>;
};
};
};
};