Re: [PATCH 2/4] dt-bindings: display: bcm2835-v3d: Add an optional reset line
Krzysztof Kozlowski <[email protected]>
| Newsgroups | gmane.linux.drivers.devicetree,gmane.comp.video.dri.devel,gmane.linux.kernel.rpi,gmane.linux.ports.arm.kernel |
|---|---|
| Message-ID | <20260818-idealistic-chivalrous-sawfish-08ddae@quoll> |
On Sun, Aug 16, 2026 at 11:05:41AM -0300, Maíra Canal wrote:
> The BCM2835 PM block has exposed a reset line for the V3D block since
> commit 670c672608a1 ("soc: bcm: bcm2835-pm: Add support for power domains
This is a reset provider driver, so not really relevant here. Driver
commit would be relevant if it was about consumer who implemented
undocumented ABI. I suggest to drop reference to driver and instead
describe the hardware.
> under a new binding."), which allows the GPU to be reset without
> power-cycling its domain. Document it so that the vc4 driver can use it to
> recover from a GPU hang.
Does every device have it? Cygnus as well?
Best regards,
Krzysztof