Re: [PATCH v2 0/2] drm/bridge: tc358767: Fix DRM_BRIDGE_ATTACH_NO_CONNECTOR case

[Marek Vasut <marex@denx.de>]

On 2/16/24 10:10, Tomi Valkeinen wrote:
> On 15/02/2024 11:03, Alexander Stein wrote:
>> Hi everyone,
>>
>> Am Donnerstag, 15. Februar 2024, 09:53:54 CET schrieb Jan Kiszka:
>>> On 11.12.23 09:07, Aradhya Bhatia wrote:
>>>> On 06/12/23 17:41, Tomi Valkeinen wrote:
>>>>> Hi,
>>>>>
>>>>> On 08/11/2023 14:45, Alexander Stein wrote:
>>>>>> Hi Tomi,
>>>>>>
>>>>>> Am Mittwoch, 8. November 2023, 12:27:21 CET schrieb Tomi Valkeinen:
>>>>>>> These two patches are needed to make tc358767 work in the
>>>>>>> DRM_BRIDGE_ATTACH_NO_CONNECTOR case, at least when using a DP
>>>>>>> connector.
>>>>>>>
>>>>>>> I have tested this with TI AM654 EVM with a tc358767 add-on card
>>>>>>> connected to a DP monitor.
>>>>>>
>>>>>> Just a question regarding the usage of this DSI-DP bridge.
>>>>>> What is the state of the DSI lanes after the DSI host has been
>>>>>> initialized,
>>>>>> but before calling atomic_pre_enable? AFAIK this bridge requires 
>>>>>> LP-11
>>>>>> on DSI
>>>>>> at any time for accessing the AUX channel.
>>>>
>>>> + Marek
>>>>
>>>> Marek, Alexander,
>>>>
>>>> A quick grep tells me that you have added devicetree for tc358767 in 
>>>> DSI
>>>> to (e)DP mode on other platforms. Could you please test these patches
>>>> and report if you find any issue?
>>
>> Sorry, I can't provide any feedback here. I've yet to setup the DSI-DP
>> correctly.
> 
> Ok. Does anyone have a worry that these patches make the situation worse 
> for the DSI case than it was before? Afaics, if the DSI lanes are not 
> set up early enough by the DSI host, the driver would break with and 
> without these patches.
> 
> These do fix the driver for DRM_BRIDGE_ATTACH_NO_CONNECTOR and DPI, so 
> I'd like to merge these unless these cause a regression with the DSI case.

1/2 looks good to me, go ahead and apply .