ACK/cmnt: [SRU][F][PATCH 0/9] Fix TC port in legacy/static mode can't be detected due TCCOLD

[You-Sheng Yang]

Noted. Thank you. :)

You-Sheng Yang

On 2020-04-24 02:23, Kamal Mostafa wrote:
> 
> Comment: All the backports from drm-tip should be marked "UBUNTU: SAUCE:"
> if they land in Ubuntu before landing in mainline.  (That can be handled
> by the applier; no need to resubmit the patch set).
>  
> Acked-by: Kamal Mostafa <kamal at canonical.com>
> 
>  -Kamal
> 
> On Wed, Apr 22, 2020 at 02:55:01PM +0800, You-Sheng Yang wrote:
>> BugLink: https://bugs.launchpad.net/bugs/1868936
>>
>> [Impact]
>> External monitor connected via a Type-C dongle when device is in PC10 may not be
>> light up.
>>
>> [Fix]
>> Patches series https://patchwork.freedesktop.org/series/75941/ from
>> intel-gfx mailing list, which has been merged in drm-tip tree with tip
>> commit 0f8925090ac7. An additional commit 8a84bacba19c landed in v5.5-rc1 is
>> also needed to forfill dependencies.
>>
>> [Test Case]
>> 1. Ensure device may enter PC10.
>>
>>    $ sudo powertop --auto-tune
>>    $ sudo watch cat /sys/kernel/debug/pmc_core/package_cstate_show
>>
>>    Press Meta+L to lock screen for a while and unlock again, "Package
>>    C10" field should have non-zero counts.
>>
>> 2. Press Meta+L to lock screen again.
>>
>> 3. After screen turns black and wait a few more seconds, connect external
>>    monitor to a type C port via a type C dongle and wake the device.
>>
>> 4. Check if external monitor is also light up as an extended/mirrored
>>    screen.
>>
>> [Regression Potential]
>> Medium.
>>
>> Imre Deak (1):
>>   drm/i915: Align power domain names with port names
>>
>> José Roberto de Souza (8):
>>   drm/i915/display: Move out code to return the digital_port of the aux
>>     ch
>>   drm/i915/display: Add intel_legacy_aux_to_power_domain()
>>   drm/i915/display: Split hsw_power_well_enable() into two
>>   drm/i915/tc/icl: Implement TC cold sequences
>>   drm/i915/tc: Skip ref held check for TC legacy aux power wells
>>   drm/i915/tc/tgl: Implement TC cold sequences
>>   drm/i915/tc: Catch TC users accessing FIA registers without enable aux
>>   drm/i915/tc: Do not warn when aux power well of static TC ports
>>     timeout
>>
>>  drivers/gpu/drm/i915/display/intel_display.c  |  24 +-
>>  drivers/gpu/drm/i915/display/intel_display.h  |   2 +
>>  .../drm/i915/display/intel_display_power.c    | 658 +++++++++++-------
>>  .../drm/i915/display/intel_display_power.h    |  41 +-
>>  drivers/gpu/drm/i915/display/intel_tc.c       |  92 ++-
>>  drivers/gpu/drm/i915/i915_debugfs.c           |   3 +-
>>  drivers/gpu/drm/i915/i915_reg.h               |   5 +
>>  7 files changed, 546 insertions(+), 279 deletions(-)
>>
>> -- 
>> 2.25.1
>>
>>
>> -- 
>> kernel-team mailing list
>> kernel-team at lists.ubuntu.com
>> https://lists.ubuntu.com/mailman/listinfo/kernel-team

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 488 bytes
Desc: OpenPGP digital signature
URL: <https://lists.ubuntu.com/archives/kernel-team/attachments/20200424/7102e9f3/attachment.sig>