Re: [Intel-gfx] [PATCH] drm/dp/mst: Read the extended DPCD capabilities during system resume

2022-06-15 Thread Lyude Paul
If you add a Cc: to sta...@vger.kernel.org then this is: Reviewed-by: Lyude Paul I assume you have the privileges to push this to drm-misc-next On Tue, 2022-06-14 at 12:45 +0300, Imre Deak wrote: > The WD22TB4 Thunderbolt dock at least will revert its DP_MAX_LINK_RATE > from HBR3 to HBR2 after

Re: [Intel-gfx] [PATCH] drm/dp/mst: Read the extended DPCD capabilities during system resume

2022-06-14 Thread Jani Nikula
On Tue, 14 Jun 2022, Imre Deak wrote: > On Tue, Jun 14, 2022 at 03:32:59PM +0300, Jani Nikula wrote: >> On Tue, 14 Jun 2022, Imre Deak wrote: >> > The WD22TB4 Thunderbolt dock at least will revert its DP_MAX_LINK_RATE >> > from HBR3 to HBR2 after system suspend/resume if the DP_DP13_DPCD_REV >>

Re: [Intel-gfx] [PATCH] drm/dp/mst: Read the extended DPCD capabilities during system resume

2022-06-14 Thread Imre Deak
On Tue, Jun 14, 2022 at 03:32:59PM +0300, Jani Nikula wrote: > On Tue, 14 Jun 2022, Imre Deak wrote: > > The WD22TB4 Thunderbolt dock at least will revert its DP_MAX_LINK_RATE > > from HBR3 to HBR2 after system suspend/resume if the DP_DP13_DPCD_REV > > registers are not read subsequently also as

Re: [Intel-gfx] [PATCH] drm/dp/mst: Read the extended DPCD capabilities during system resume

2022-06-14 Thread Jani Nikula
On Tue, 14 Jun 2022, Jani Nikula wrote: > On Tue, 14 Jun 2022, Imre Deak wrote: >> The WD22TB4 Thunderbolt dock at least will revert its DP_MAX_LINK_RATE >> from HBR3 to HBR2 after system suspend/resume if the DP_DP13_DPCD_REV >> registers are not read subsequently also as required. > > Does it

Re: [Intel-gfx] [PATCH] drm/dp/mst: Read the extended DPCD capabilities during system resume

2022-06-14 Thread Jani Nikula
On Tue, 14 Jun 2022, Imre Deak wrote: > The WD22TB4 Thunderbolt dock at least will revert its DP_MAX_LINK_RATE > from HBR3 to HBR2 after system suspend/resume if the DP_DP13_DPCD_REV > registers are not read subsequently also as required. Does it actually change the behaviour depending on

[Intel-gfx] [PATCH] drm/dp/mst: Read the extended DPCD capabilities during system resume

2022-06-14 Thread Imre Deak
The WD22TB4 Thunderbolt dock at least will revert its DP_MAX_LINK_RATE from HBR3 to HBR2 after system suspend/resume if the DP_DP13_DPCD_REV registers are not read subsequently also as required. Fix this by reading DP_DP13_DPCD_REV registers as well, matching what is done during connector