Re: [PATCH v2 4/9] drm/panthor: Implement optional reset

Rain Yang
2025-09-17T14:18:30Z

On Wed, Sep 17, 2025 at 04:17:27AM +0200, Marek Vasut wrote:
>On 9/17/25 3:49 AM, Rain Yang wrote:
>
>Hello Jiyu,
>
>> Hi Marek,
>> sorry for the inconvienence. this uboot version don't include SM-184's change.
>> I heard you're using i.MX95 A1 Chip, so you can extract the uboot in below link[1],
>> or build from source, or raise one ticket in this website[2].
>
>I use mainline U-Boot 2025.07 with about 10 extra patches, but nothing
>significant. I don't think this is U-Boot issue, is it ?
>
>I can rebuild SM, which commit in SM (from imx-sm repository) do I need to
>use ?
>
>--
>Best regards,
>Marek Vasut
Hi Marek,
I think the problem may be about the multi power domain, the second power domain named perf
is for frequency change only, you can try to power on gpumix power domain only.

as the 0x4d810008 is a write-once register and whose operation has been moved into the SM side,
so please drop the reset change.
can you also change the label of the gpu node from gpu to mali like "mali: gpu@4d900000",
as the internal driver use mali label to control the thermal up/low limitation.

BTW, does the dynamic frequency work well on your side so far with perf domain?