linux-kernel - Re: [RESEND PATCH 13/19] phy: sun4i-usb: add support for A100 USB PHY

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Message-ID: <ba05fb05-f1de-8a8f-c771-f82f25ad4da5@arm.com>
Date:   Sat, 28 Nov 2020 19:39:02 +0000
From:   André Przywara <andre.przywara@....com>
To:     Frank Lee <frank@...winnertech.com>, tiny.windzz@...il.com
Cc:     Randy Dunlap <rdunlap@...radead.org>, linux-kernel@...r.kernel.org,
        Maxime Ripard <mripard@...nel.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Colin Ian King <colin.king@...onical.com>,
        Chen-Yu Tsai <wens@...e.org>,
        linux-arm-kernel@...ts.infradead.org,
        Jernej Skrabec <jernej.skrabec@...l.net>
Subject: Re: [RESEND PATCH 13/19] phy: sun4i-usb: add support for A100 USB PHY

On 10/11/2020 06:40, Frank Lee wrote:

Hi,

> From: Yangtao Li <frank@...winnertech.com>
> 
> Add support for a100's usb phy, which with 2 PHYs.
> 
> Signed-off-by: Yangtao Li <frank@...winnertech.com>
> ---
>  drivers/phy/allwinner/phy-sun4i-usb.c | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
> 
> diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c
> index a6900495baa5..1a0e403131e7 100644
> --- a/drivers/phy/allwinner/phy-sun4i-usb.c
> +++ b/drivers/phy/allwinner/phy-sun4i-usb.c
> @@ -107,6 +107,7 @@ enum sun4i_usb_phy_type {
>  	sun8i_r40_phy,
>  	sun8i_v3s_phy,
>  	sun50i_a64_phy,
> +	sun50i_a100_phy,

But with that patch fixing the H6 support you don't need a new name, do you?
Because below you just add the sun50i_a100_phy name next to every place
with a sun50i_h6_phy check.

>  	sun50i_h6_phy,
>  };
>  
> @@ -289,7 +290,13 @@ static int sun4i_usb_phy_init(struct phy *_phy)
>  	}
>  
>  	if (data->cfg->type == sun8i_a83t_phy ||
> +	    data->cfg->type == sun50i_a100_phy ||
>  	    data->cfg->type == sun50i_h6_phy) {
> +		if (phy->pmu && data->cfg->enable_pmu_unk1) {
> +			val = readl(phy->pmu + REG_PMU_UNK1);
> +			writel(val & ~BIT(3), phy->pmu + REG_PMU_UNK1);
> +		}
> +
>  		if (phy->index == 0) {
>  			val = readl(data->base + data->cfg->phyctl_offset);
>  			val |= PHY_CTL_VBUSVLDEXT;
> @@ -339,6 +346,7 @@ static int sun4i_usb_phy_exit(struct phy *_phy)
>  
>  	if (phy->index == 0) {
>  		if (data->cfg->type == sun8i_a83t_phy ||
> +		    data->cfg->type == sun50i_a100_phy ||
>  		    data->cfg->type == sun50i_h6_phy) {
>  			void __iomem *phyctl = data->base +
>  				data->cfg->phyctl_offset;
> @@ -960,6 +968,16 @@ static const struct sun4i_usb_phy_cfg sun50i_a64_cfg = {
>  	.phy0_dual_route = true,
>  };
>  
> +static const struct sun4i_usb_phy_cfg sun50i_a100_cfg = {
> +	.num_phys = 2,
> +	.type = sun50i_a100_phy,

So you could just use the sun50i_h6_phy type here.

Cheers,
Andre

> +	.disc_thresh = 3,
> +	.phyctl_offset = REG_PHYCTL_A33,
> +	.dedicated_clocks = true,
> +	.enable_pmu_unk1 = true,
> +	.phy0_dual_route = true,
> +};
> +
>  static const struct sun4i_usb_phy_cfg sun50i_h6_cfg = {
>  	.num_phys = 4,
>  	.type = sun50i_h6_phy,
> @@ -983,6 +1001,7 @@ static const struct of_device_id sun4i_usb_phy_of_match[] = {
>  	{ .compatible = "allwinner,sun8i-v3s-usb-phy", .data = &sun8i_v3s_cfg },
>  	{ .compatible = "allwinner,sun50i-a64-usb-phy",
>  	  .data = &sun50i_a64_cfg},
> +	{ .compatible = "allwinner,sun50i-a100-usb-phy", .data = &sun50i_a100_cfg },
>  	{ .compatible = "allwinner,sun50i-h6-usb-phy", .data = &sun50i_h6_cfg },
>  	{ },
>  };
>