linux-kernel - Re: [PATCH for stable 5.4 v2] usb: dwc3: gadget: fix writing NYET threshold

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Message-ID: <2024120926-uncolored-lip-b571@gregkh>
Date: Mon, 9 Dec 2024 13:05:39 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: André Draszik <andre.draszik@...aro.org>
Cc: Thinh Nguyen <Thinh.Nguyen@...opsys.com>, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH for stable 5.4 v2] usb: dwc3: gadget: fix writing NYET
 threshold

On Mon, Dec 09, 2024 at 11:50:57AM +0000, André Draszik wrote:
> Before writing a new value to the register, the old value needs to be
> masked out for the new value to be programmed as intended, because at
> least in some cases the reset value of that field is 0xf (max value).
> 
> At the moment, the dwc3 core initialises the threshold to the maximum
> value (0xf), with the option to override it via a DT. No upstream DTs
> seem to override it, therefore this commit doesn't change behaviour for
> any upstream platform. Nevertheless, the code should be fixed to have
> the desired outcome.
> 
> Do so.
> 
> Fixes: 80caf7d21adc ("usb: dwc3: add lpm erratum support")
> Cc: stable@...r.kernel.org # 5.4 (needs adjustment for 5.10+)
> Signed-off-by: André Draszik <andre.draszik@...aro.org>
> ---
> * has been marked as v2, to be in line with the 5.10+ patch
> * for stable-5.10+, the if() test is slightly different, so a separate
>   patch has been sent for it for the patch to apply.

What is the git id of this in Linus's tree?

thanks,

greg k-h