linux-kernel - Re: [PATCH RESEND v7] drm/vc4: hdmi: switch to generic CEC helpers

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Message-ID: <CAPY8ntAspTdWB6nNXrkNpZ9TYUtbkxJc_QB3ZmF5iGC31_U33Q@mail.gmail.com>
Date: Thu, 11 Sep 2025 18:37:18 +0100
From: Dave Stevenson <dave.stevenson@...pberrypi.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Cc: Maxime Ripard <mripard@...nel.org>, Maíra Canal <mcanal@...lia.com>, 
	Raspberry Pi Kernel Maintenance <kernel-list@...pberrypi.com>, 
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Thomas Zimmermann <tzimmermann@...e.de>, 
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, dri-devel@...ts.freedesktop.org, 
	linux-kernel@...r.kernel.org, Dmitry Baryshkov <lumag@...nel.org>
Subject: Re: [PATCH RESEND v7] drm/vc4: hdmi: switch to generic CEC helpers

On Wed, 10 Sept 2025 at 15:21, Dave Stevenson
<dave.stevenson@...pberrypi.com> wrote:
>
> Hi Dmitry
>
> On Fri, 5 Sept 2025 at 17:51, Dmitry Baryshkov
> <dmitry.baryshkov@....qualcomm.com> wrote:
> >
> > On Fri, Aug 15, 2025 at 06:11:57PM +0300, Dmitry Baryshkov wrote:
> > > On Sat, Jul 05, 2025 at 01:05:13PM +0300, Dmitry Baryshkov wrote:
> > > > Switch VC4 driver to using CEC helpers code, simplifying hotplug and
> > > > registration / cleanup. The existing vc4_hdmi_cec_release() is kept for
> > > > now.
> > > >
> > > > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> > > > Reviewed-by: Maxime Ripard <mripard@...nel.org>
> > > > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
> > > > ---
> > > > This is a part of the HDMI CEC rework, posting separately to let it be
> > > > tested by the maintainers.
> > > > ---
> > > > Changes in v7:
> > > > - Dropped all applied patches, keeping just VC4
> > > > - Link to v6: https://lore.kernel.org/r/20250517-drm-hdmi-connector-cec-v6-0-35651db6f19b@oss.qualcomm.com
> > > >
> > >
> > > Can I please get Tested-by for this patch? It has been R-B'ed, but I
> > > totally don't think it should be applied without testing on the actual
> > > hardware...
> >
> > And another ping to get it tested by...
>
> Apologies - I'll find a display or AVR that supports CEC tomorrow to test.

I've only got a Sony soundbar here that supports CEC, but I can
control the volume and mute status of that from the Pi, read the
status back, and monitor mode is reporting power on/off events.

A colleague is going to give it more of a test via Kodi when he gets a
chance, but I'm happy to give it a:

Tested-by: Dave Stevenson <dave.stevenson@...pberrypi.com>

Sorry for the delay in doing that testing.

  Dave