mirror of
https://github.com/torvalds/linux.git
synced 2026-04-18 14:53:58 -04:00
81d678332c
access-controllers is an optional property that allows a peripheral to refer to one or more domain access controller(s). This property is added when the peripheral is under the STM32 firewall controller. It allows an accurate representation of the hardware, where the peripheral is connected to a firewall bus. The firewall can then check the peripheral accesses before allowing its device to probe. Acked-by: Rob Herring (Arm) <robh@kernel.org> Acked-by: Yannick Fertre <yannick.fertre@foss.st.com> Link: https://lore.kernel.org/r/20250822-drm-misc-next-v5-2-9c825e28f733@foss.st.com Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
129 lines
2.6 KiB
YAML
129 lines
2.6 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/display/st,stm32-ltdc.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: STMicroelectronics STM32 lcd-tft display controller
|
|
|
|
maintainers:
|
|
- Philippe Cornu <philippe.cornu@foss.st.com>
|
|
- Yannick Fertre <yannick.fertre@foss.st.com>
|
|
|
|
properties:
|
|
compatible:
|
|
enum:
|
|
- st,stm32-ltdc
|
|
- st,stm32mp251-ltdc
|
|
- st,stm32mp255-ltdc
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
interrupts:
|
|
items:
|
|
- description: events interrupt line.
|
|
- description: errors interrupt line.
|
|
minItems: 1
|
|
|
|
clocks:
|
|
minItems: 1
|
|
maxItems: 4
|
|
|
|
clock-names:
|
|
items:
|
|
- const: lcd
|
|
- const: bus
|
|
- const: ref
|
|
- const: lvds
|
|
minItems: 1
|
|
|
|
resets:
|
|
maxItems: 1
|
|
|
|
access-controllers:
|
|
maxItems: 1
|
|
|
|
port:
|
|
$ref: /schemas/graph.yaml#/properties/port
|
|
description: |
|
|
Video port for DPI RGB output.
|
|
ltdc has one video port with up to 2 endpoints:
|
|
- for external dpi rgb panel or bridge, using gpios.
|
|
- for internal dpi input of the MIPI DSI host controller.
|
|
Note: These 2 endpoints cannot be activated simultaneously.
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- interrupts
|
|
- clocks
|
|
- clock-names
|
|
- resets
|
|
- port
|
|
|
|
allOf:
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
enum:
|
|
- st,stm32-ltdc
|
|
then:
|
|
properties:
|
|
clocks:
|
|
maxItems: 1
|
|
clock-names:
|
|
maxItems: 1
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
enum:
|
|
- st,stm32mp251-ltdc
|
|
then:
|
|
properties:
|
|
clocks:
|
|
minItems: 2
|
|
maxItems: 2
|
|
clock-names:
|
|
minItems: 2
|
|
maxItems: 2
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
enum:
|
|
- st,stm32mp255-ltdc
|
|
then:
|
|
properties:
|
|
clocks:
|
|
minItems: 4
|
|
clock-names:
|
|
minItems: 4
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/interrupt-controller/arm-gic.h>
|
|
#include <dt-bindings/clock/stm32mp1-clks.h>
|
|
#include <dt-bindings/reset/stm32mp1-resets.h>
|
|
ltdc: display-controller@40016800 {
|
|
compatible = "st,stm32-ltdc";
|
|
reg = <0x5a001000 0x400>;
|
|
interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>,
|
|
<GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
|
|
clocks = <&rcc LTDC_PX>;
|
|
clock-names = "lcd";
|
|
resets = <&rcc LTDC_R>;
|
|
|
|
port {
|
|
ltdc_out_dsi: endpoint {
|
|
remote-endpoint = <&dsi_in>;
|
|
};
|
|
};
|
|
};
|
|
|
|
...
|