linux-kernel - Re: [PATCH 01/29] usb: dwc3: Discard synopsys,dwc3 compatibility string

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Message-ID: <877drlf5g2.fsf@kernel.org>
Date:   Tue, 20 Oct 2020 15:27:25 +0300
From:   Felipe Balbi <balbi@...nel.org>
To:     Serge Semin <Sergey.Semin@...kalelectronics.ru>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Serge Semin <Sergey.Semin@...kalelectronics.ru>,
        Serge Semin <fancer.lancer@...il.com>,
        linux-arm-kernel@...ts.infradead.org, linux-usb@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 01/29] usb: dwc3: Discard synopsys,dwc3 compatibility
 string


Hi,

Serge Semin <Sergey.Semin@...kalelectronics.ru> writes:
> Syonpsys IP cores are supposed to be defined with "snps" vendor-prefix.
> Discard a DW USB3 compatible string with the deprecated prefix seeing
> one isn't used by any dts file anymore.
>
> Signed-off-by: Serge Semin <Sergey.Semin@...kalelectronics.ru>
> ---
>  drivers/usb/dwc3/core.c | 3 ---
>  1 file changed, 3 deletions(-)
>
> diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
> index 2eb34c8b4065..28440250e798 100644
> --- a/drivers/usb/dwc3/core.c
> +++ b/drivers/usb/dwc3/core.c
> @@ -1878,9 +1878,6 @@ static const struct of_device_id of_dwc3_match[] = {
>  	{
>  		.compatible = "snps,dwc3"
>  	},
> -	{
> -		.compatible = "synopsys,dwc3"
> -	},
>  	{ },
>  };
>  MODULE_DEVICE_TABLE(of, of_dwc3_match);

sorry, no. You can't guarantee that there isn't a FW in ROM somewhere
using the old string.

-- 
balbi

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