[PATCH 0/5] drm/vc4: hdmi: Remove CPU hangs, take 2

[Stephen Boyd]

Quoting Maxime Ripard (2021-09-28 06:05:49)
> On Fri, Sep 24, 2021 at 09:40:44AM +0200, Maxime Ripard wrote:
> > Hi,
> > 
> > On Wed, Sep 22, 2021 at 02:54:14PM +0200, Maxime Ripard wrote:
> > > Hi,
> > > 
> > > Here's another attempt at fixing the complete CPU stall while retrieving the
> > > HDMI connector status when the connector is disabled.
> > > 
> > > This was fixed already, but eventually got reverted by Linus due to the same
> > > symptom happening in another situation. This was likely (but not confirmed by
> > > the reporter) due to the kernel being booted without an HDMI display connected,
> > > in which case the firmware won't initialise the HDMI State Machine clock.
> > > 
> > > This is fixed by patch 3. However, further changes in the clock drivers were
> > > needed for clk_set_min_rate to be used, which are patches 1 and 2.
> > > 
> > > Finally, patches 4 and 5 are the original patches that were reverted. Patch 4
> > > got a small modification to move the clk_set_min_rate() call before the HSM
> > > clock is enabled.
> > 
> > If we merge the clock patches and DRM patches separately we're going to
> > break bisectability. I guess the easiest approach would be to merge the
> > clk patches through DRM. Does that work for everyone?
> 
> Anyone? I can ask around for reviews on DRM, but I'd really like some
> reviews on the clock patches here..
> 

Looks ok to me to take through drm.