linux-kernel - Re: [PATCH v2 04/10] phy: sun4i-usb: add support for the USB PHY on F1C100s SoC

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Date:   Wed, 12 Oct 2022 23:21:50 +0200
From:   Jernej Škrabec <jernej.skrabec@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Samuel Holland <samuel@...lland.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andre Przywara <andre.przywara@....com>,
        Icenowy Zheng <uwu@...nowy.me>
Cc:     soc@...nel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev, linux-phy@...ts.infradead.org,
        linux-usb@...r.kernel.org, Icenowy Zheng <uwu@...nowy.me>
Subject: Re: [PATCH v2 04/10] phy: sun4i-usb: add support for the USB PHY on F1C100s SoC

Hi Icenowy,

Dne sreda, 12. oktober 2022 ob 07:55:56 CEST je Icenowy Zheng napisal(a):
> The F1C100s SoC has one USB OTG port connected to a MUSB controller.
> 
> Add support for its USB PHY.
> 
> Signed-off-by: Icenowy Zheng <uwu@...nowy.me>
> ---
> No changes since v1.
> 
>  drivers/phy/allwinner/phy-sun4i-usb.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c
> b/drivers/phy/allwinner/phy-sun4i-usb.c index 3a3831f6059a..2f94cb77637b
> 100644
> --- a/drivers/phy/allwinner/phy-sun4i-usb.c
> +++ b/drivers/phy/allwinner/phy-sun4i-usb.c
> @@ -109,6 +109,7 @@ enum sun4i_usb_phy_type {
>  	sun8i_v3s_phy,
>  	sun50i_a64_phy,
>  	sun50i_h6_phy,
> +	suniv_f1c100s_phy,
>  };
> 
>  struct sun4i_usb_phy_cfg {
> @@ -859,6 +860,14 @@ static int sun4i_usb_phy_probe(struct platform_device
> *pdev) return 0;
>  }
> 
> +static const struct sun4i_usb_phy_cfg suniv_f1c100s_cfg = {
> +	.num_phys = 1,
> +	.type = suniv_f1c100s_phy,

I think you should just use sun4i_a10_phy. It has no special handling. I don't 
see a point adding new phy types if there is no special cases for it.

Best regards,
Jernej

> +	.disc_thresh = 3,
> +	.phyctl_offset = REG_PHYCTL_A10,
> +	.dedicated_clocks = true,
> +};
> +
>  static const struct sun4i_usb_phy_cfg sun4i_a10_cfg = {
>  	.num_phys = 3,
>  	.type = sun4i_a10_phy,
> @@ -988,6 +997,8 @@ static const struct of_device_id
> sun4i_usb_phy_of_match[] = { { .compatible =
> "allwinner,sun50i-a64-usb-phy",
>  	  .data = &sun50i_a64_cfg},
>  	{ .compatible = "allwinner,sun50i-h6-usb-phy", .data = 
&sun50i_h6_cfg },
> +	{ .compatible = "allwinner,suniv-f1c100s-usb-phy",
> +	  .data = &suniv_f1c100s_cfg },
>  	{ },
>  };
>  MODULE_DEVICE_TABLE(of, sun4i_usb_phy_of_match);
> --
> 2.37.1