RE: [PATCH 4.18 222/235] drm/amd/pp: Send khz clock values to DC for smu7/8

From: Deucher, Alexander
Date: Mon Oct 08 2018 - 12:02:28 EST


> -----Original Message-----
> From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> Sent: Monday, October 8, 2018 10:44 AM
> To: Deucher, Alexander <Alexander.Deucher@xxxxxxx>
> Cc: linux-kernel@xxxxxxxxxxxxxxx; stable@xxxxxxxxxxxxxxx; Wentland, Harry
> <Harry.Wentland@xxxxxxx>; Zhu, Rex <Rex.Zhu@xxxxxxx>; Sasha Levin
> <alexander.levin@xxxxxxxxxxxxx>
> Subject: Re: [PATCH 4.18 222/235] drm/amd/pp: Send khz clock values to DC
> for smu7/8
>
> On Mon, Oct 08, 2018 at 02:33:56PM +0000, Deucher, Alexander wrote:
> > > -----Original Message-----
> > > From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > > Sent: Monday, September 24, 2018 7:53 AM
> > > To: linux-kernel@xxxxxxxxxxxxxxx
> > > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>;
> > > stable@xxxxxxxxxxxxxxx; Wentland, Harry <Harry.Wentland@xxxxxxx>;
> > > Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Zhu, Rex
> > > <Rex.Zhu@xxxxxxx>; Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
> > > Subject: [PATCH 4.18 222/235] drm/amd/pp: Send khz clock values to
> > > DC for
> > > smu7/8
> > >
> > > 4.18-stable review patch. If anyone has any objections, please let me
> know.
> > >
> >
> > This regresses power usage on 4.18. Please revert.
> > https://bugzilla.kernel.org/show_bug.cgi?id=201275
>
> Is it reverted in "upstream" as well? If not, please get the fix in there and
> then I will be glad to backport it here.
>

There's no breakage in upstream. This patch addressed breakages in 4.19 specifically due to some other refactoring we did in the driver. I'll try and dig out the exact series of patches this addressed.

Alex

> thanks,
>
> greg k-h