On Thu, Mar 12, 2026 at 02:33:55PM -0500, Sen Wang wrote: > The IT66121 is an HDMI transmitter and does not support audio capture. > However, the driver registers hdmi-codec without setting no_i2s_capture, > causing the codec to advertise a non-functional capture stream. Userspace > audio servers such as PulseAudio then attempt to open this capture > device, resulting in errors. > > Set no_i2s_capture and no_spdif_capture in hdmi_codec_pdata so that the > hdmi-codec driver only registers playback, matching the actual hardware > capability.
As you hopefully have the hardware, can I suggest instead porting the driver to HDMI helpers and HDMI audio helpers? The drm_connector_hdmi_audio_init() already sets thesse flags for you. > > Signed-off-by: Sen Wang <[email protected]> > --- > drivers/gpu/drm/bridge/ite-it66121.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/gpu/drm/bridge/ite-it66121.c > b/drivers/gpu/drm/bridge/ite-it66121.c > index 329fa47a5701..a1b2c3d4e5f6 100644 > --- a/drivers/gpu/drm/bridge/ite-it66121.c > +++ b/drivers/gpu/drm/bridge/ite-it66121.c > @@ -1476,6 +1476,8 @@ static int it66121_audio_codec_init(struct it66121_ctx > *ctx, struct device *dev) > .i2s = 1, /* Only i2s support for now */ > .spdif = 0, > .max_i2s_channels = 8, > + .no_i2s_capture = 1, > + .no_spdif_capture = 1, > .no_capture_mute = 1, > }; > > -- > 2.34.1 -- With best wishes Dmitry
