Re: [PATCH v4 0/3] drm/atomic-helpers: Fix MCDE/R-Car DU regressions

[Marek Vasut <marek.vasut@mailbox.org>]

On 11/25/25 5:13 PM, Linus Walleij wrote:

Hello everyone,

>> This fixes two regressions experienced in the MCDE and
>> R-Car DU DRM drivers after
>> commit c9b1150a68d9362a0827609fc0dc1664c0d8bfe1
>> "drm/atomic-helper: Re-order bridge chain pre-enable and post-disable"
>> caused a series of regressions in all panels that send
>> DSI commands in their .prepare() and .unprepare()
>> callbacks.
>>
>> This series make it possible to selectively bring back the
>> old behaviour with explicit semantics and implements
>> the old behaviour as modified commit tails in MCDE and
>> R-Car DU.
> 
> So what's the take on this patch series?
> 
> Maxime: is this what you had in mind? Acked-by?
> 
> Marek: do you think you have an opportunity to test this on the R-Car DU?

I'm sorry, I admittedly was happy that Tomi took over and I could focus 
on other topics. Now, I tested this series on R-Car V4H Retronix Sparrow 
Hawk board with RPi 7" Display 2 with ILI9881C controller, on current 
next-20251125 . For this series:

Tested-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

Thank you for taking care of this and your hard work !