linux-kernel - Re: [PATCH] usb: dwc3: core: Add DWC31 version 2.00a controller

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Date: Fri, 1 Mar 2024 22:45:40 +0100
From: Greg KH <gregkh@...uxfoundation.org>
To: Wesley Cheng <quic_wcheng@...cinc.com>
Cc: Thinh.Nguyen@...opsys.com, linux-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org
Subject: Re: [PATCH] usb: dwc3: core: Add DWC31 version 2.00a controller

On Fri, Mar 01, 2024 at 01:35:54PM -0800, Wesley Cheng wrote:
> Add revision value for identifying DWC31 version 2.00a based controllers.
> 
> Signed-off-by: Wesley Cheng <quic_wcheng@...cinc.com>
> ---
>  drivers/usb/dwc3/core.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
> index df544ec730d2..f3bbbc1947bd 100644
> --- a/drivers/usb/dwc3/core.h
> +++ b/drivers/usb/dwc3/core.h
> @@ -1259,6 +1259,7 @@ struct dwc3 {
>  #define DWC31_REVISION_170A	0x3137302a
>  #define DWC31_REVISION_180A	0x3138302a
>  #define DWC31_REVISION_190A	0x3139302a
> +#define DWC31_REVISION_200A	0x3230302a

What code uses this define?

Why add a define that is not used?

confused,

greg k-h