Re: [PATCH v4 06/11] dt-bindings: phy: convert HDMI PHY binding to YAML schema - Chun-Kuang Hu

From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
To: Chunfeng Yun <chunfeng.yun@mediatek.com>
Cc: Rob Herring <robh+dt@kernel.org>,
	Chun-Kuang Hu <chunkuang.hu@kernel.org>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	"David S . Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Kishon Vijay Abraham I <kishon@ti.com>,
	Vinod Koul <vkoul@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Stanley Chu <stanley.chu@mediatek.com>,
	Min Guo <min.guo@mediatek.com>,
	DRI Development <dri-devel@lists.freedesktop.org>,
	DTML <devicetree@vger.kernel.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	netdev@vger.kernel.org,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	"moderated list:ARM/Mediatek SoC support" 
	<linux-mediatek@lists.infradead.org>,
	linux-usb@vger.kernel.org,
	Serge Semin <Sergey.Semin@baikalelectronics.ru>
Subject: Re: [PATCH v4 06/11] dt-bindings: phy: convert HDMI PHY binding to YAML schema
Date: Thu, 24 Dec 2020 08:24:16 +0800	[thread overview]
Message-ID: <CAAOTY_9PHEsTa7Vf9ZyQ-JwFYnSi3pBrpOcKE7hBxN=8KWQkeQ@mail.gmail.com> (raw)
In-Reply-To: <20201216093012.24406-6-chunfeng.yun@mediatek.com>

Hi, Chunfeng:

Chunfeng Yun <chunfeng.yun@mediatek.com> 於 2020年12月16日 週三 下午5:30寫道：
>
> Convert HDMI PHY binding to YAML schema mediatek,hdmi-phy.yaml
>

Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>

> Cc: Chun-Kuang Hu <chunkuang.hu@kernel.org>
> Cc: Philipp Zabel <p.zabel@pengutronix.de>
> Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
> Reviewed-by: Rob Herring <robh@kernel.org>
> ---
> v4: add maintainer Philipp
> 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       | 92 +++++++++++++++++++
>  2 files changed, 93 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..4752517a1446
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/mediatek,hdmi-phy.yaml
> @@ -0,0 +1,92 @@
> +# 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@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:
> +    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@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>;
> +    };
> +
> +...
> --
> 2.18.0
>