On Tue, 11 Oct 2022, Ville Syrjala <[email protected]> wrote: > From: Ville Syrjälä <[email protected]> > > Read out the ELD from the hw so the state checker can verify it. > > Cc: Chaitanya Kumar Borah <[email protected]> > Cc: Kai Vehmanen <[email protected]> > Cc: Takashi Iwai <[email protected]> > Signed-off-by: Ville Syrjälä <[email protected]>
Reviewed-by: Jani Nikula <[email protected]> > --- > drivers/gpu/drm/i915/display/intel_sdvo.c | 17 +++++++++++++++++ > 1 file changed, 17 insertions(+) > > diff --git a/drivers/gpu/drm/i915/display/intel_sdvo.c > b/drivers/gpu/drm/i915/display/intel_sdvo.c > index d9a54ed4623a..b2884fdc2b1c 100644 > --- a/drivers/gpu/drm/i915/display/intel_sdvo.c > +++ b/drivers/gpu/drm/i915/display/intel_sdvo.c > @@ -1185,6 +1185,21 @@ static void intel_sdvo_get_avi_infoframe(struct > intel_sdvo *intel_sdvo, > frame->any.type, HDMI_INFOFRAME_TYPE_AVI); > } > > +static void intel_sdvo_get_eld(struct intel_sdvo *intel_sdvo, > + struct intel_crtc_state *crtc_state) > +{ > + struct drm_i915_private *i915 = to_i915(intel_sdvo->base.base.dev); > + ssize_t len; > + > + if (!crtc_state->has_audio) > + return; > + > + len = intel_sdvo_read_infoframe(intel_sdvo, SDVO_HBUF_INDEX_ELD, > + crtc_state->eld, > sizeof(crtc_state->eld)); > + if (len < 0) > + drm_dbg_kms(&i915->drm, "failed to read ELD\n"); > +} > + > static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo, > const struct drm_connector_state > *conn_state) > { > @@ -1744,6 +1759,8 @@ static void intel_sdvo_get_config(struct intel_encoder > *encoder, > } > > intel_sdvo_get_avi_infoframe(intel_sdvo, pipe_config); > + > + intel_sdvo_get_eld(intel_sdvo, pipe_config); > } > > static void intel_sdvo_disable_audio(struct intel_sdvo *intel_sdvo) -- Jani Nikula, Intel Open Source Graphics Center
