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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
dt-bindings: display: add STM32 LVDS device
Add "st,stm32mp25-lvds" compatible.
Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Yannick Fertre <yannick.fertre@foss.st.com>
Signed-off-by: Philippe Cornu <philippe.cornu@foss.st.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240226-lvds-v6-1-15e3463fbe70@foss.st.com
authored by
Raphael Gallais-Pou
and committed by
Philippe Cornu
3f12669b
e1c55089
+120
+119
Documentation/devicetree/bindings/display/st,stm32mp25-lvds.yaml
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Documentation/devicetree/bindings/display/st,stm32mp25-lvds.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/display/st,stm32mp25-lvds.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: STMicroelectronics STM32 LVDS Display Interface Transmitter
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maintainers:
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- Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
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- Yannick Fertre <yannick.fertre@foss.st.com>
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description: |
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The STMicroelectronics STM32 LVDS Display Interface Transmitter handles the
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LVDS protocol: it maps the pixels received from the upstream Pixel-DMA (LTDC)
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onto the LVDS PHY.
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It is composed of three sub blocks:
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- LVDS host: handles the LVDS protocol (FPD / OpenLDI) and maps its input
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pixels onto the data lanes of the PHY
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- LVDS PHY: parallelize the data and drives the LVDS data lanes
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- LVDS wrapper: handles top-level settings
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The LVDS controller driver supports the following high-level features:
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- FDP-Link-I and OpenLDI (v0.95) protocols
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- Single-Link or Dual-Link operation
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- Single-Display or Double-Display (with the same content duplicated on both)
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- Flexible Bit-Mapping, including JEIDA and VESA
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- RGB888 or RGB666 output
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- Synchronous design, with one input pixel per clock cycle
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properties:
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compatible:
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const: st,stm32mp25-lvds
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"#clock-cells":
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const: 0
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description:
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Provides the internal LVDS PHY clock to the framework.
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reg:
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maxItems: 1
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clocks:
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items:
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- description: APB peripheral clock
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- description: Reference clock for the internal PLL
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clock-names:
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items:
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- const: pclk
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- const: ref
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resets:
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maxItems: 1
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ports:
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$ref: /schemas/graph.yaml#/properties/ports
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properties:
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port@0:
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$ref: /schemas/graph.yaml#/properties/port
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description:
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LVDS input port node, connected to the LTDC RGB output port.
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port@1:
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$ref: /schemas/graph.yaml#/properties/port
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description:
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LVDS output port node, connected to a panel or bridge input port.
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required:
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- port@0
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- port@1
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required:
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- compatible
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- "#clock-cells"
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- reg
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- clocks
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- clock-names
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- resets
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- ports
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/clock/st,stm32mp25-rcc.h>
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#include <dt-bindings/reset/st,stm32mp25-rcc.h>
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lvds: lvds@48060000 {
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compatible = "st,stm32mp25-lvds";
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reg = <0x48060000 0x2000>;
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#clock-cells = <0>;
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clocks = <&rcc CK_BUS_LVDS>, <&rcc CK_KER_LVDSPHY>;
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clock-names = "pclk", "ref";
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resets = <&rcc LVDS_R>;
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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reg = <0>;
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lvds_in: endpoint {
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remote-endpoint = <<dc_ep1_out>;
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};
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};
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port@1 {
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reg = <1>;
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lvds_out0: endpoint {
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remote-endpoint = <&lvds_panel_in>;
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};
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};
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};
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};
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...
+1
MAINTAINERS
+1
MAINTAINERS
···
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S: Maintained
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T: git https://gitlab.freedesktop.org/drm/misc/kernel.git
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F: Documentation/devicetree/bindings/display/st,stm32-ltdc.yaml
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F: Documentation/devicetree/bindings/display/st,stm32mp25-lvds.yaml
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F: drivers/gpu/drm/stm
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DRM DRIVERS FOR TI KEYSTONE