[PATCH 25/64] drm/vc4: dpi: Add action to disable the clock

Maxime Ripard maxime at cerno.tech
Thu Jun 16 08:38:35 UTC 2022


Hi Dave,

On Tue, Jun 14, 2022 at 05:47:28PM +0100, Dave Stevenson wrote:
> Hi Maxime.
> 
> On Fri, 10 Jun 2022 at 10:30, Maxime Ripard <maxime at cerno.tech> wrote:
> >
> > Adding a device-managed action will make the error path easier, so let's
> > create one to disable our clock.
> 
> The DPI block has two clocks (core and pixel), and this is only
> affecting one of them (the core clock).

Thanks for the suggestion, I've amended the commit message.

> (I'm actually puzzling over what it's wanting to do with the core
> clock here as it's only enabling it rather than setting a rate. I
> think it may be redundant).

Could it be that it a "bus" clock that we need it to access the
registers?

Maxime
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