Re: [PATCH 08/22] drm/tegra: dc: Drop the reset asserts to workaround a bug

2017-06-13 Thread Dmitry Osipenko
On 13.06.2017 16:45, Thierry Reding wrote: > On Tue, May 23, 2017 at 03:14:23AM +0300, Dmitry Osipenko wrote: >> Commit 33a8eb8 ("Implement runtime PM") introduced HW reset control. It >> causes a hang on Tegra20 if both display controllers are utilized (RGB >> panel and HDMI). The TRM suggests tha

Re: [PATCH 08/22] drm/tegra: dc: Drop the reset asserts to workaround a bug

2017-06-13 Thread Thierry Reding
On Tue, Jun 13, 2017 at 05:18:37PM +0300, Dmitry Osipenko wrote: > On 13.06.2017 16:45, Thierry Reding wrote: > > On Tue, May 23, 2017 at 03:14:23AM +0300, Dmitry Osipenko wrote: > >> Commit 33a8eb8 ("Implement runtime PM") introduced HW reset control. It > >> causes a hang on Tegra20 if both displ

Re: [PATCH 08/22] drm/tegra: dc: Drop the reset asserts to workaround a bug

2017-06-13 Thread Thierry Reding
On Tue, May 23, 2017 at 03:14:23AM +0300, Dmitry Osipenko wrote: > Commit 33a8eb8 ("Implement runtime PM") introduced HW reset control. It > causes a hang on Tegra20 if both display controllers are utilized (RGB > panel and HDMI). The TRM suggests that each display controller has its own > reset co

[PATCH 08/22] drm/tegra: dc: Drop the reset asserts to workaround a bug

2017-05-22 Thread Dmitry Osipenko
Commit 33a8eb8 ("Implement runtime PM") introduced HW reset control. It causes a hang on Tegra20 if both display controllers are utilized (RGB panel and HDMI). The TRM suggests that each display controller has its own reset control, apparently it is not correct. Let's remove the interaction with th