On Wed, 05 Jul 2023, Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx> wrote: > From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > > Instead of warning and continuing with bogus state when the > requested dotclock isn't acceptable just print some debug > spew and fail gracefully. > > Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx> > --- > drivers/gpu/drm/i915/display/intel_sdvo.c | 18 +++++++++++++----- > 1 file changed, 13 insertions(+), 5 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_sdvo.c b/drivers/gpu/drm/i915/display/intel_sdvo.c > index 75a8e5583358..fcf3a95393d9 100644 > --- a/drivers/gpu/drm/i915/display/intel_sdvo.c > +++ b/drivers/gpu/drm/i915/display/intel_sdvo.c > @@ -1269,7 +1269,7 @@ intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo, > return true; > } > > -static void i9xx_adjust_sdvo_tv_clock(struct intel_crtc_state *pipe_config) > +static int i9xx_adjust_sdvo_tv_clock(struct intel_crtc_state *pipe_config) > { > struct drm_i915_private *dev_priv = to_i915(pipe_config->uapi.crtc->dev); > unsigned int dotclock = pipe_config->hw.adjusted_mode.crtc_clock; > @@ -1292,11 +1292,14 @@ static void i9xx_adjust_sdvo_tv_clock(struct intel_crtc_state *pipe_config) > clock->m1 = 12; > clock->m2 = 8; > } else { > - drm_WARN(&dev_priv->drm, 1, > - "SDVO TV clock out of range: %i\n", dotclock); > + drm_dbg_kms(&dev_priv->drm, > + "SDVO TV clock out of range: %i\n", dotclock); > + return -EINVAL; > } > > pipe_config->clock_set = true; > + > + return 0; > } > > static bool intel_has_hdmi_sink(struct intel_sdvo_connector *intel_sdvo_connector, > @@ -1414,8 +1417,13 @@ static int intel_sdvo_compute_config(struct intel_encoder *encoder, > conn_state); > > /* Clock computation needs to happen after pixel multiplier. */ > - if (IS_TV(intel_sdvo_connector)) > - i9xx_adjust_sdvo_tv_clock(pipe_config); > + if (IS_TV(intel_sdvo_connector)) { > + int ret; > + > + ret = i9xx_adjust_sdvo_tv_clock(pipe_config); > + if (ret) > + return ret; > + } > > if (conn_state->picture_aspect_ratio) > adjusted_mode->picture_aspect_ratio = -- Jani Nikula, Intel Open Source Graphics Center