[Letux-kernel] module_mipi_dsi_driver panel with omapdrm?

Tomi Valkeinen tomi.valkeinen at ti.com
Wed Aug 5 14:08:29 CEST 2020

On 05/08/2020 14:49, H. Nikolaus Schaller wrote:
> Hi,
>> Am 05.08.2020 um 13:28 schrieb Sebastian Reichel <sebastian.reichel at collabora.com>:
>> Hi,
>> On Wed, Aug 05, 2020 at 11:19:20AM +0200, H. Nikolaus Schaller wrote:
>>> What I do not yet understand is how Laurent's patch should be able
>>> to break it.
>> omapdrm will not probe successfully if any DT enabled component
>> does not probe correctly. Since the patch you identified touched
>> HDMI and VENC and you are probably using HDMI, I suggest looking
>> there first.
> Yes, that is a very good explanation.
> Maybe there is a subtle change in how the HDMI connector has to be defined
> which is missing in our (private) DTB. Maybe the OMAP5-uEVM DTS gives a hint.
> A quick check shows last hdmi specific change for omap5-board-common or uevm
> was in 2017 but I may have missed something.
> There are 715a5a978733f0 and 671ab615bd507f which arrived in v5.7-rc1 as well
> and are related to hdmi clocks. So this may be (or not) and influencing factor.

HDMI should "just work", and has been tested. But maybe there's some conflict with HDMI and DSI.


Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki

More information about the Letux-kernel mailing list