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

[Greg Kroah-Hartman]

On Mon, Dec 09, 2024 at 12:12:05PM +0000, André Draszik wrote:
> 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@xxxxxxxxxxxxxxx # 5.4 (needs adjustment for 5.10+)
> > > Signed-off-by: André Draszik <andre.draszik@xxxxxxxxxx>
> > > ---
> > > * 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@xxxxxxxxxx/

Ah.  Yeah, wait until it hits Linus's tree before telling us about this,
otherwise we'll just get confused :)

thanks,

greg k-h