Re: [PATCH 2/2] phy: mtk-mipi-csi: add driver for CSI phy

From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Julien Stephan <jstephan@baylibre.com>
Cc: Phi-bang Nguyen <pnguyen@baylibre.com>,
	Louis Kuo <louis.kuo@mediatek.com>,
	Chunfeng Yun <chunfeng.yun@mediatek.com>,
	Andy Hsieh <andy.hsieh@mediatek.com>,
	Vinod Koul <vkoul@kernel.org>,
	Kishon Vijay Abraham I <kishon@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Chun-Kuang Hu <chunkuang.hu@kernel.org>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	AngeloGioacchino Del Regno
	<angelogioacchino.delregno@collabora.com>,
	"moderated list:ARM/Mediatek USB3 PHY DRIVER"
	<linux-arm-kernel@lists.infradead.org>,
	"moderated list:ARM/Mediatek USB3 PHY DRIVER"
	<linux-mediatek@lists.infradead.org>,
	"open list:GENERIC PHY FRAMEWORK" <linux-phy@lists.infradead.org>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
	<devicetree@vger.kernel.org>,
	open list <linux-kernel@vger.kernel.org>,
	"open list:DRM DRIVERS FOR MEDIATEK"
	<dri-devel@lists.freedesktop.org>
Subject: Re: [PATCH 2/2] phy: mtk-mipi-csi: add driver for CSI phy
Date: Mon, 3 Apr 2023 11:51:50 +0200	[thread overview]
Message-ID: <6c9c74ee-b9ed-815f-dd92-37eb4c8f802a@linaro.org> (raw)
In-Reply-To: <20230403071929.360911-3-jstephan@baylibre.com>

On 03/04/2023 09:19, Julien Stephan wrote:
> From: Phi-bang Nguyen <pnguyen@baylibre.com>
> 
> This is a new driver that supports the MIPI CSI CD-PHY for mediatek
> mt8365 soc
> 
> Signed-off-by: Louis Kuo <louis.kuo@mediatek.com>
> Signed-off-by: Phi-bang Nguyen <pnguyen@baylibre.com>
> [Julien Stephan: use regmap]
> [Julien Stephan: use GENMASK]
> Co-developed-by: Julien Stephan <jstephan@baylibre.com>
> Signed-off-by: Julien Stephan <jstephan@baylibre.com>
> ---
>  .../bindings/phy/mediatek,csi-phy.yaml        |   9 +-
>  MAINTAINERS                                   |   1 +
>  drivers/phy/mediatek/Kconfig                  |   8 +
>  drivers/phy/mediatek/Makefile                 |   2 +
>  .../phy/mediatek/phy-mtk-mipi-csi-rx-reg.h    | 435 ++++++++++++++++++
>  drivers/phy/mediatek/phy-mtk-mipi-csi.c       | 392 ++++++++++++++++
>  6 files changed, 845 insertions(+), 2 deletions(-)
>  create mode 100644 drivers/phy/mediatek/phy-mtk-mipi-csi-rx-reg.h
>  create mode 100644 drivers/phy/mediatek/phy-mtk-mipi-csi.c
> 
> diff --git a/Documentation/devicetree/bindings/phy/mediatek,csi-phy.yaml b/Documentation/devicetree/bindings/phy/mediatek,csi-phy.yaml
> index c026e43f35fd..ad4ba1d93a68 100644
> --- a/Documentation/devicetree/bindings/phy/mediatek,csi-phy.yaml
> +++ b/Documentation/devicetree/bindings/phy/mediatek,csi-phy.yaml

NAK, bindings are always separate patches. It also does not make any
sense - you just added it.

> @@ -33,9 +33,14 @@ additionalProperties: false
>  
>  examples:
>    - |
> -    phy@10011800 {
> +    soc {
> +      #address-cells = <2>;
> +      #size-cells = <2>;
> +
> +      phy@11c10000 {
>          compatible = "mediatek,mt8365-mipi-csi";
> -        reg = <0 0x10011800 0 0x60>;
> +        reg = <0 0x11c10000 0 0x4000>;
>          #phy-cells = <1>;
> +      };
>      };

k_mipi_dphy_of_match[] = {
> +	{.compatible = "mediatek,mt8365-mipi-csi"},
> +	{},
> +};
> +MODULE_DEVICE_TABLE(of, mtk_mipi_dphy_of_match);
> +
> +static struct platform_driver mipi_dphy_pdrv = {
> +	.probe = mtk_mipi_dphy_probe,
> +	.remove = mtk_mipi_dphy_remove,
> +	.driver	= {
> +		.name	= "mtk-mipi-csi",
> +		.of_match_table = of_match_ptr(mtk_mipi_dphy_of_match),

Drop of_match_ptr(). You should see W=1 warnings when compile testing.

Best regards,
Krzysztof

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