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Message-ID: <CAAOTY_9dNyySJkyX78tHDQZPaqD+5Jqixbdbohp319FyXO1X5Q@mail.gmail.com>
Date: Fri, 20 Nov 2020 07:42:35 +0800
From: Chun-Kuang Hu <chunkuang.hu@...nel.org>
To: Chunfeng Yun <chunfeng.yun@...iatek.com>
Cc: Rob Herring <robh+dt@...nel.org>,
Serge Semin <Sergey.Semin@...kalelectronics.ru>,
Chun-Kuang Hu <chunkuang.hu@...nel.org>,
Philipp Zabel <p.zabel@...gutronix.de>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
"David S . Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Kishon Vijay Abraham I <kishon@...com>,
Vinod Koul <vkoul@...nel.org>,
Matthias Brugger <matthias.bgg@...il.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Stanley Chu <stanley.chu@...iatek.com>,
Min Guo <min.guo@...iatek.com>,
DRI Development <dri-devel@...ts.freedesktop.org>,
DTML <devicetree@...r.kernel.org>,
linux-kernel <linux-kernel@...r.kernel.org>,
netdev@...r.kernel.org,
Linux ARM <linux-arm-kernel@...ts.infradead.org>,
"moderated list:ARM/Mediatek SoC support"
<linux-mediatek@...ts.infradead.org>, linux-usb@...r.kernel.org
Subject: Re: [PATCH v3 06/11] dt-bindings: phy: convert HDMI PHY binding to
YAML schema
Hi, Chunfeng:
Chunfeng Yun <chunfeng.yun@...iatek.com> 於 2020年11月18日 週三 下午4:21寫道：
>
> Convert HDMI PHY binding to YAML schema mediatek,hdmi-phy.yaml
>
> Cc: Chun-Kuang Hu <chunkuang.hu@...nel.org>
> Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
> Reviewed-by: Rob Herring <robh@...nel.org>
> ---
> v3: add Reviewed-by Rob
> v2: fix binding check warning of reg in example
> ---
> .../display/mediatek/mediatek,hdmi.txt | 18 +---
> .../bindings/phy/mediatek,hdmi-phy.yaml | 91 +++++++++++++++++++
> 2 files changed, 92 insertions(+), 17 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/phy/mediatek,hdmi-phy.yaml
>
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.txt
> index 6b1c586403e4..b284ca51b913 100644
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.txt
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.txt
> @@ -53,23 +53,7 @@ Required properties:
>
> HDMI PHY
> ========
> -
> -The HDMI PHY serializes the HDMI encoder's three channel 10-bit parallel
> -output and drives the HDMI pads.
> -
> -Required properties:
> -- compatible: "mediatek,<chip>-hdmi-phy"
> -- the supported chips are mt2701, mt7623 and mt8173
> -- reg: Physical base address and length of the module's registers
> -- clocks: PLL reference clock
> -- clock-names: must contain "pll_ref"
> -- clock-output-names: must be "hdmitx_dig_cts" on mt8173
> -- #phy-cells: must be <0>
> -- #clock-cells: must be <0>
> -
> -Optional properties:
> -- mediatek,ibias: TX DRV bias current for <1.65Gbps, defaults to 0xa
> -- mediatek,ibias_up: TX DRV bias current for >1.65Gbps, defaults to 0x1c
> +See phy/mediatek,hdmi-phy.yaml
>
> Example:
>
> diff --git a/Documentation/devicetree/bindings/phy/mediatek,hdmi-phy.yaml b/Documentation/devicetree/bindings/phy/mediatek,hdmi-phy.yaml
> new file mode 100644
> index 000000000000..96700bb8bc00
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/mediatek,hdmi-phy.yaml
> @@ -0,0 +1,91 @@
> +# 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 binding
> +
> +maintainers:
> + - Chun-Kuang Hu <chunkuang.hu@...nel.org>
> + - Chunfeng Yun <chunfeng.yun@...iatek.com>
Please add Philipp Zabel because he is Mediatek DRM driver maintainer.
DRM DRIVERS FOR MEDIATEK
M: Chun-Kuang Hu <chunkuang.hu at kernel.org>
M: Philipp Zabel <p.zabel at pengutronix.de>
L: dri-devel at lists.freedesktop.org
S: Supported
F: Documentation/devicetree/bindings/display/mediatek/
Regards,
Chun-Kuang.
> +
> +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:
> + enum:
> + - mediatek,mt2701-hdmi-phy
> + - mediatek,mt7623-hdmi-phy
> + - mediatek,mt8173-hdmi-phy
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + items:
> + - description: PLL reference clock
> +
> + clock-names:
> + items:
> + - const: pll_ref
> +
> + clock-output-names:
> + items:
> + - const: hdmitx_dig_cts
> +
> + "#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"
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/mt8173-clk.h>
> + hdmi_phy: hdmi-phy@...09100 {
> + 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>;
> + };
> +
> +...
> --
> 2.18.0
>
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