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

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Message-ID: <127a17f0d7cf74f2fb69e996817dd783e768e0eb.camel@linaro.org>
Date: Mon, 09 Dec 2024 12:12:05 +0000
From: André Draszik <andre.draszik@...aro.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.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, 2024-12-09 at 13:05 +0100, Greg Kroah-Hartman wrote:
> 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?

I guess I misunderstood the docs... It's not merged into Linus' tree
yet - the proposed patch is here:

https://lore.kernel.org/all/20241209-dwc3-nyet-fix-v2-1-02755683345b@linaro.org/


Cheers,
Andre'