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 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 the resets for now as a workaround.
Fixes: 33a8eb8d40ee ("drm/tegra: dc: Implement runtime PM") Signed-off-by: Dmitry Osipenko digetx@gmail.com
drivers/gpu/drm/tegra/dc.c | 15 --------------- 1 file changed, 15 deletions(-)
Do you mind if I parameterize this to restrict omission of the assert and deassert to Tegra20? I'm fairly sure that these resets are important on later chips in order to properly reset the display controllers.
I don't mind at all, I can parameterize it in the next rev myself if you wish.
Sure, why not.
Thierry