Re: [Freedreno] [PATCH v7 3/4] drm/msm/dp: wait for hpd high before aux transaction

2022-04-14 Thread Doug Anderson
Hi, On Thu, Apr 14, 2022 at 5:20 AM Sankeerth Billakanti wrote: > > The source device should ensure the sink is ready before proceeding to > read the sink capability or perform any aux transactions. The sink > will indicate its readiness by asserting the HPD line. The controller > driver needs to

[Freedreno] [PATCH v7 3/4] drm/msm/dp: wait for hpd high before aux transaction

2022-04-14 Thread Sankeerth Billakanti
The source device should ensure the sink is ready before proceeding to read the sink capability or perform any aux transactions. The sink will indicate its readiness by asserting the HPD line. The controller driver needs to wait for the hpd line to be asserted by the sink before it performs any aux