On Fri, 21 Jun 2024 at 12:30, Maxime Ripard <mrip...@kernel.org> wrote:
>
> On Sat, Jun 15, 2024 at 08:53:33PM GMT, Dmitry Baryshkov wrote:
> > Add necessary glue code to be able to use new HDMI codec framework from
> > the DRM bridge drivers. The drm_bridge implements a limited set of the
> > hdmi_codec_ops interface, with the functions accepting both
> > drm_connector and drm_bridge instead of just a generic void pointer.
> >
> > This framework is integrated with the DRM HDMI Connector framework, but
> > can also be used for DisplayPort connectors.
> >
> > Signed-off-by: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
> > ---
> > drivers/gpu/drm/drm_bridge_connector.c | 130
> > ++++++++++++++++++++++++++++++++-
> > include/drm/drm_bridge.h | 46 ++++++++++++
> > 2 files changed, 174 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/drm_bridge_connector.c
> > b/drivers/gpu/drm/drm_bridge_connector.c
> > index 0869b663f17e..71d6fdc2391f 100644
> > --- a/drivers/gpu/drm/drm_bridge_connector.c
> > +++ b/drivers/gpu/drm/drm_bridge_connector.c
> > @@ -20,6 +20,8 @@
> > #include <drm/drm_probe_helper.h>
> > #include <drm/display/drm_hdmi_state_helper.h>
> >
> > +#include <sound/hdmi-codec.h>
> > +
> > /**
> > * DOC: overview
> > *
> > @@ -95,6 +97,14 @@ struct drm_bridge_connector {
> > * HDMI connector infrastructure, if any (see &DRM_BRIDGE_OP_HDMI).
> > */
> > struct drm_bridge *bridge_hdmi;
> > + /**
> > + * @bridge_hdmi_codec:
> > + *
> > + * The bridge in the chain that implements necessary support for the
> > + * HDMI Audio Codec infrastructure, if any (see
> > + * &DRM_BRIDGE_OP_HDMI_CODEC).
> > + */
> > + struct drm_bridge *bridge_hdmi_codec;
>
> Can we have a setup where one bridge would support the video stream and
> another one the audio?
>
> I think for now I'd rather make them both provided by the same bridge,
> and we can always change that later on if we need to.
The same point here (and for your second comment): DisplayPort audio support.
--
With best wishes
Dmitry
