Re: [PATCH v2 0/7] drm/bridge: tc358768: Long command support

[Dmitry Osipenko]

06.05.2026 10:55, Tomi Valkeinen пишет:
> Hi all,
> 
> On 11/03/2026 09:48, Tomi Valkeinen wrote:
>> This series makes some small improvements to the tc358768 driver, and
>> then adds support for long commands, commands that have more than 8
>> bytes of payload.
>>
>> This has been tested on Toradex Verdin AM62 board, with a ST7703 based
>> DSI panel which requires initial configuration using commands that have
>> 8+ bytes.
>>
>> I tested the following combinations, by observing the panel visually and
>> the DSI lanes with an oscilloscope:
>>
>> - HS command transfer, continuous clock
>> - HS command transfer, non-continuous clock
>> - LP command transfer, continuous clock
>> - LP command transfer, non-continuous clock
>>
>> All except LP + continuous clock work fine. While observing the lanes
>> with normal oscilloscope is a very high level and vague view of what
>> exactly is going on the lanes, it still looks good to me: initial
>> commands are sent in LP, and then video data is being sent in HS, and
>> clock lane is continuous. However, the panel stays black, so something
>> is not quite right.
>>
>> As it doesn't make sense to send commands in LP during initial
>> configuration, especially with longer commands, I will leave that
>> particular combination unresolved. I'd be interested to hear if it works
>> on some other panel.
>>
>> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>
>> ---
>> Changes in v2:
>> - Add reviewed-by & tested-by tags
>> - Rebase on v7.0-rc2
>> - Link to v1: https://lore.kernel.org/r/20251021-tc358768-v1-0-
>> d590dc6a1a0c@xxxxxxxxxxxxxxxx
> Any further comments from anyone? I don't see a specific maintainer for
> this bridge chip, so if there are no comments I'll push this to drm-misc
> in the coming days.

No objections