Re: [PATCH v2 1/1] drm/tyr: make SRAM supply optional like panthor

From: Mark Brown

Date: Thu Feb 12 2026 - 07:21:33 EST


On Thu, Feb 12, 2026 at 03:16:44PM +0300, Onur Özkan wrote:
> Mark Brown <broonie@xxxxxxxxxx> wrote:
> > On Thu, Feb 12, 2026 at 01:05:38PM +0300, Onur Özkan wrote:

> > > Panthor handles SRAM as optional and tolerates missing sram-supply.

> > Does the RAM really work without power?

> If the platform has no separate sram-supply (meaning that rail is
> coupled to mali), RAM should still be powered and work fine. Panthor
> already relies on this model by treating sram-supply as optional and
> as far as I can see there are no RAM issues on Panthor.

The panthor driver is buggy here and should be fixed, the driver should
treat the supply as mandatory and let the system integration work out
how it's actually made available.

Trying to open code this just breaks the error handling.

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