# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright 2019 Texas Instruments Incorporated
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/ti/ti,j721e-dss.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Texas Instruments J721E Display Subsystem
maintainers:
- Jyri Sarha <[email protected]>
- Tomi Valkeinen <[email protected]>
description: |
The J721E TI Keystone Display SubSystem with four output ports and
four video planes. There is two full video planes and two "lite
planes" without scaling support. The video ports can be connected to
the SoC's DPI pins or to integrated display bridges on the SoC.
properties:
compatible:
const: ti,j721e-dss
reg:
items:
- description: common_m DSS Master common
- description: common_s0 DSS Shared common 0
- description: common_s1 DSS Shared common 1
- description: common_s2 DSS Shared common 2
- description: VIDL1 light video plane 1
- description: VIDL2 light video plane 2
- description: VID1 video plane 1
- description: VID1 video plane 2
- description: OVR1 overlay manager for vp1
- description: OVR2 overlay manager for vp2
- description: OVR3 overlay manager for vp3
- description: OVR4 overlay manager for vp4
- description: VP1 video port 1
- description: VP2 video port 2
- description: VP3 video port 3
- description: VP4 video port 4
- description: WB Write Back
reg-names:
items:
- const: common_m
- const: common_s0
- const: common_s1
- const: common_s2
- const: vidl1
- const: vidl2
- const: vid1
- const: vid2
- const: ovr1
- const: ovr2
- const: ovr3
- const: ovr4
- const: vp1
- const: vp2
- const: vp3
- const: vp4
- const: wb
clocks:
items:
- description: fck DSS functional clock
- description: vp1 Video Port 1 pixel clock
- description: vp2 Video Port 2 pixel clock
- description: vp3 Video Port 3 pixel clock
- description: vp4 Video Port 4 pixel clock
clock-names:
items:
- const: fck
- const: vp1
- const: vp2
- const: vp3
- const: vp4
assigned-clocks:
minItems: 1
maxItems: 5
assigned-clock-parents:
minItems: 1
maxItems: 5
interrupts:
items:
- description: common_m DSS Master common
- description: common_s0 DSS Shared common 0
- description: common_s1 DSS Shared common 1
- description: common_s2 DSS Shared common 2
interrupt-names:
items:
- const: common_m
- const: common_s0
- const: common_s1
- const: common_s2
power-domains:
maxItems: 1
description: phandle to the associated power domain
dma-coherent:
type: boolean
ports:
$ref: /schemas/graph.yaml#/properties/ports
properties:
port@0:
$ref: /schemas/graph.yaml#/properties/port
description:
The output port node form video port 1
port@1:
$ref: /schemas/graph.yaml#/properties/port
description:
The output port node from video port 2
port@2:
$ref: /schemas/graph.yaml#/properties/port
description:
The output port node from video port 3
port@3:
$ref: /schemas/graph.yaml#/properties/port
description:
The output port node from video port 4
max-memory-bandwidth:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Input memory (from main memory to dispc) bandwidth limit in
bytes per second
required:
- compatible
- reg
- reg-names
- clocks
- clock-names
- interrupts
- interrupt-names
- ports
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/soc/ti,sci_pm_domain.h>
dss: dss@4a00000 {
compatible = "ti,j721e-dss";
reg = <0x04a00000 0x10000>, /* common_m */
<0x04a10000 0x10000>, /* common_s0*/
<0x04b00000 0x10000>, /* common_s1*/
<0x04b10000 0x10000>, /* common_s2*/
<0x04a20000 0x10000>, /* vidl1 */
<0x04a30000 0x10000>, /* vidl2 */
<0x04a50000 0x10000>, /* vid1 */
<0x04a60000 0x10000>, /* vid2 */
<0x04a70000 0x10000>, /* ovr1 */
<0x04a90000 0x10000>, /* ovr2 */
<0x04ab0000 0x10000>, /* ovr3 */
<0x04ad0000 0x10000>, /* ovr4 */
<0x04a80000 0x10000>, /* vp1 */
<0x04aa0000 0x10000>, /* vp2 */
<0x04ac0000 0x10000>, /* vp3 */
<0x04ae0000 0x10000>, /* vp4 */
<0x04af0000 0x10000>; /* wb */
reg-names = "common_m", "common_s0",
"common_s1", "common_s2",
"vidl1", "vidl2","vid1","vid2",
"ovr1", "ovr2", "ovr3", "ovr4",
"vp1", "vp2", "vp3", "vp4",
"wb";
clocks = <&k3_clks 152 0>,
<&k3_clks 152 1>,
<&k3_clks 152 4>,
<&k3_clks 152 9>,
<&k3_clks 152 13>;
clock-names = "fck", "vp1", "vp2", "vp3", "vp4";
power-domains = <&k3_pds 152 TI_SCI_PD_EXCLUSIVE>;
interrupts = <GIC_SPI 602 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 603 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 604 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 605 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "common_m",
"common_s0",
"common_s1",
"common_s2";
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
dpi_out_0: endpoint {
remote-endpoint = <&dp_bridge_input>;
};
};
};
};
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