linux-kernel - Re: [PATCH 0/6] Add support for RK3588 DisplayPort Controller

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Message-Id: <047EECFC-7E55-44EC-896F-13FE04333E4D@gmail.com>
Date: Tue, 4 Mar 2025 14:12:50 +0100
From: Piotr Oniszczuk <piotr.oniszczuk@...il.com>
To: Andy Yan <andyshrk@....com>
Cc: heiko@...ech.de,
 neil.armstrong@...aro.org,
 sebastian.reichel@...labora.com,
 devicetree@...r.kernel.org,
 hjc@...k-chips.com,
 mripard@...nel.org,
 linux-kernel@...r.kernel.org,
 linux-rockchip@...ts.infradead.org,
 yubing.zhang@...k-chips.com,
 dri-devel@...ts.freedesktop.org,
 Andy Yan <andy.yan@...k-chips.com>,
 krzk+dt@...nel.org,
 robh@...nel.org,
 linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 0/6] Add support for RK3588 DisplayPort Controller



> Wiadomość napisana przez Andy Yan <andyshrk@....com> w dniu 1 mar 2025, o godz. 13:24:
> 
> 
> Hi Piotr,
> 
>> 
>> is it worth to play with this or it is too early?
> 
> I think you could give it a try if it using the Standard DP（non-ALT mode） port for output. 
> Since I don't currently have a development board with DP1 output available, I haven't been
> able to test it yet. As for the Type-C Alternate Mode output, some patches are still required 
> I'll  send it with V2 tomorrow or next week.
> Feel free to let me know if If you encounter any issues。
> 

Andy,
I added dp1 enablement in rock5 itx like this: https://gist.github.com/warpme/bddf75912193f57724c49216d5d85d4a
Unfortunately it not works.
For /sys/kernel/debug/dri/0/state - pls see above link…
I’m not sure: do i missed something in dt or rather issue issue  is in dp code...

FYI: schematic: https://dl.radxa.com/rock5/5itx/v1110/radxa_rock_5itx_v1110_schematic.pdf