Hi Tomi,
Am 22.05.2017 um 08:31 schrieb Tomi Valkeinen tomi.valkeinen@ti.com:
Hi,
On 20/05/17 14:30, H. Nikolaus Schaller wrote:
Hi Tomi,
after rebasing our Letux kernel to 4.12-rc1 our DSI panel stopped initializing. DRM and X11 are up and running, but the panel fails to initialize and show anything.
We have not touched the code of our btl507212-w677l DSI driver.
Is there anything to consider on panel driver side?
What I can't 100% exclude is that we have additional hacks in the omapdss system which may now be in conflict. For example we have your "[PATCH] dispc hackfix" or "dss: remove export of venc modes".
Can you try reverting 7d267f068a8b4944d52e8b0ae4c8fcc1c1c5c5ba
Yes, a revert makes it working again!
The interesting question is why it makes such a difference...
Are there additional dividers which depend on M and N? For example the DSI LP clock? This could explain why a DPI panel (GTA04) simply works as before and there is only a DSI communication problem during DSI panel initialization.
BR and thanks, Nikolaus