[Intel-gfx] [PATCH 0/6] Fixing sink count related detection over

[Shubhangi Shrivastava]

On Wednesday 18 November 2015 02:53 PM, Ander Conselvan De Oliveira wrote:
> On Wed, 2015-11-18 at 11:12 +0530, Shubhangi Shrivastava wrote:
>> On Wednesday 18 November 2015 01:23 AM, Daniel Vetter wrote:
>>> On Mon, Nov 02, 2015 at 06:25:10PM +0530, Shubhangi Shrivastava wrote:
>>>> This patch set cleans up DP detection logic to bring all DPCD
>>>> operations at one place and to create a clear demarcation
>>>> between handling of long and short pulses. This simplifies
>>>> fixing of sink count related detection for DP panels.
>>>>
>>>> Patches:
>>>> 1. First two patches clean up intel_dp_detect and form a new
>>>> function which will include all DPCD related operations.
>>>> 2. Second patch splits up intel_dp_check_link_status to form
>>>> a new function which will handle short pulse requests.
>>>> 3. Last three patches fixes the detection logic related to
>>>> sink count i.e detect changes in sink count and handle them
>>>> appropriately.
>>>>
>>>> Note: this is tested on BXT with non-mst panels,
>>>> will get back ASAP with results for MST panels too.
>>> Sivakumar and Ander are working on reorganizing all the DP hpd handling,
>>> at least they have been before I went on vacation. I think it would make
>>> sense to land that work first, before we start to apply functional fixes.
>>>
>>> Please coordinate with them.
>>> -Daniel
>> Yes.. The reorganization of DP HPD handling is in progress.
>> I am working with Siva on the same. :)
> I thought this was the series that reorganizes HPD. Should I be looking at some
> other patches too?
>
> Ander
Its the same Ander.. :)
>
>> We have found certain bugs in MST related code, pointed out
>> by Ander. Once it is fixed, we will re-upload the patches.
>>>> Shubhangi Shrivastava (6):
>>>>     drm/i915: Splitting intel_dp_detect
>>>>     drm/i915: Cleaning up intel_dp_hpd_pulse
>>>>     drm/i915: Splitting intel_dp_check_link_status
>>>>     drm/i915: Save sink_count for tracking changes to it
>>>>     drm/i915: read sink_count dpcd always
>>>>     drm/i915: force full detect on sink count change
>>>>
>>>>    drivers/gpu/drm/i915/intel_dp.c  | 170 +++++++++++++++++++++++++--------
>>>> ------
>>>>    drivers/gpu/drm/i915/intel_drv.h |   1 +
>>>>    2 files changed, 110 insertions(+), 61 deletions(-)
>>>>