linux-kernel - RE: [char-misc-next] mei: gsc_proxy: match component when GSC is on different bus

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Date: Tue, 20 Feb 2024 19:52:13 +0000
From: "Winkler, Tomas" <tomas.winkler@...el.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC: "Usyskin, Alexander" <alexander.usyskin@...el.com>, "Lubart, Vitaly"
	<vitaly.lubart@...el.com>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "stable@...r.kernel.org"
	<stable@...r.kernel.org>
Subject: RE: [char-misc-next] mei: gsc_proxy: match component when GSC is on
 different bus

> 
> On Sun, Feb 11, 2024 at 03:04:08PM +0200, Tomas Winkler wrote:
> > From: Alexander Usyskin <alexander.usyskin@...el.com>
> >
> > On Arrow Lake S systems, MEI is no longer strictly connected to bus 0,
> > while graphics remain exclusively on bus 0. Adapt the component
> > matching logic to accommodate this change:
> >
> > Original behavior: Required both MEI and graphics to be on the same
> > bus 0.
> >
> > New behavior: Only enforces graphics to be on bus 0 (integrated),
> > allowing MEI to reside on any bus.
> > This ensures compatibility with Arrow Lake S and maintains
> > functionality for the legacy systems.
> >
> > Cc: <stable@...r.kernel.org>
> > Signed-off-by: Alexander Usyskin <alexander.usyskin@...el.com>
> > Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>
> 
> What commit id does this fix?  How far back in stable kernels should it go?
Should be backported together with 'mei: me: add arrow lake point S DID'
And 1dd924f6885b ("mei: gsc_proxy: add gsc proxy driver")
I will send v2

Thanks
Tomas