(EXT) [PATCH v0.5 0/9] i.MX8MP HDMI support

Marek Vasut marex at denx.de
Wed May 18 17:55:04 PDT 2022


On 5/9/22 11:44, Alexander Stein wrote:
> Hi Lucas,
> 
> Am Freitag, 6. Mai 2022, 20:10:25 CEST schrieb Lucas Stach:
>> second round of the i.MX8MP HDMI work. Still not split up into proper
>> parts for merging through the various trees this needs to go into, but
>> should make it easy for people to test.
>>
>> I've worked in the feedback I got from the last round, including fixing
>> the system hang that could happen when the drivers were built as modules.
>>
>> Series is based on linux-next/master, as there are some prerequisite
>> patches in both the drm and imx tree already. The last patch from [1]
>> and the patches from [2] need to be applied. Please note that this series
>> expects the sync polarity from the LCDIF to be set according to the
>> comments I made in [2]. Please test and provide feedback.
> 
> Thanks for the 2nd round of HDMI support patches. Sorry I wasn't able to reply
> to your questions, but the PLL locking seems to be gone on my system.
> 
> I still get the error
>> imx-lcdif 32fc6000.display-controller: Unknown media bus format 0x200f
> 
> To answer the other question on the last patchset
>> Do have a 4k HDMI display connected that wants to do YUV input? That's
>> something I have to admit I didn't test yet and would be likely to
>> cause this bus format selection.
> 
> This is a FullHD HDMI monitor, ASUS PB238Q. Apparently the color format is
> YCBCR422. From what I can see is that
> dw_hdmi_bridge_atomic_get_output_bus_fmts() adds MEDIA_BUS_FMT_UYVY8_1X16
> (0x200f) to the output formats. This is then passed to

Try LCDIFv3 v3 patchset I just posted, that should work then.



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