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linux/Documentation/devicetree/bindings/phy/mediatek,hdmi-phy.yaml
Nícolas F. R. A. Prado 79643afdd9 dt-bindings: phy: mediatek,hdmi-phy: Document extra clocks for MT8195
MT8195's HDMI PHY block has 4 clocks instead of just a single one.
Describe the extra clocks for it.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20251217-mtk-genio-evk-hdmi-support-v2-3-a994976bb39a@collabora.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
2026-01-17 00:10:01 +00:00

122 lines
2.6 KiB
YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
# Copyright (c) 2020 MediaTek
%YAML 1.2
---
$id: http://devicetree.org/schemas/phy/mediatek,hdmi-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek High Definition Multimedia Interface (HDMI) PHY
maintainers:
- Chun-Kuang Hu <chunkuang.hu@kernel.org>
- Philipp Zabel <p.zabel@pengutronix.de>
- Chunfeng Yun <chunfeng.yun@mediatek.com>
description: |
The HDMI PHY serializes the HDMI encoder's three channel 10-bit parallel
output and drives the HDMI pads.
properties:
$nodename:
pattern: "^hdmi-phy@[0-9a-f]+$"
compatible:
oneOf:
- items:
- enum:
- mediatek,mt7623-hdmi-phy
- const: mediatek,mt2701-hdmi-phy
- items:
- enum:
- mediatek,mt8188-hdmi-phy
- const: mediatek,mt8195-hdmi-phy
- const: mediatek,mt2701-hdmi-phy
- const: mediatek,mt8173-hdmi-phy
- const: mediatek,mt8195-hdmi-phy
reg:
maxItems: 1
clocks:
minItems: 1
items:
- description: PLL reference clock
- description: HDMI 26MHz clock
- description: HDMI PLL1 clock
- description: HDMI PLL2 clock
clock-names:
minItems: 1
items:
- const: pll_ref
- const: 26m
- const: pll1
- const: pll2
clock-output-names:
maxItems: 1
"#phy-cells":
const: 0
"#clock-cells":
const: 0
mediatek,ibias:
description:
TX DRV bias current for < 1.65Gbps
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 63
default: 0xa
mediatek,ibias_up:
description:
TX DRV bias current for >= 1.65Gbps
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 63
default: 0x1c
required:
- compatible
- reg
- clocks
- clock-names
- clock-output-names
- "#phy-cells"
- "#clock-cells"
allOf:
- if:
not:
properties:
compatible:
contains:
const: mediatek,mt8195-hdmi-phy
then:
properties:
clocks:
maxItems: 1
clock-names:
maxItems: 1
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/mt8173-clk.h>
hdmi_phy: hdmi-phy@10209100 {
compatible = "mediatek,mt8173-hdmi-phy";
reg = <0x10209100 0x24>;
clocks = <&apmixedsys CLK_APMIXED_HDMI_REF>;
clock-names = "pll_ref";
clock-output-names = "hdmitx_dig_cts";
mediatek,ibias = <0xa>;
mediatek,ibias_up = <0x1c>;
#clock-cells = <0>;
#phy-cells = <0>;
};
...