On Tue, Apr 02, 2013 at 06:39:37PM +0200, Daniel Vetter wrote: > The active output is only the currently selected one, which does not > imply that it's actually enabled. Since we don't use the sdvo encoder > side dpms support, we need to check whether the chip-side sdvo port is > enabled instead. > > v2: Fix up Bugzilla links. > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=60138 > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=63031 > Cc: Egbert Eich <eich at pdx.freedesktop.org > Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch> > --- > drivers/gpu/drm/i915/intel_sdvo.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c > index 33b46d9..0e55bee 100644 > --- a/drivers/gpu/drm/i915/intel_sdvo.c > +++ b/drivers/gpu/drm/i915/intel_sdvo.c > @@ -1219,11 +1219,15 @@ static bool intel_sdvo_connector_get_hw_state(struct intel_connector *connector) > struct intel_sdvo_connector *intel_sdvo_connector = > to_intel_sdvo_connector(&connector->base); > struct intel_sdvo *intel_sdvo = intel_attached_sdvo(&connector->base); > + struct drm_i915_private *dev_priv = intel_sdvo->base.base.dev->dev_private; > u16 active_outputs; > + u32 tmp; > > + tmp = I915_READ(intel_sdvo->sdvo_reg); > intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs); > > - if (active_outputs & intel_sdvo_connector->output_flag) > + if ((active_outputs & intel_sdvo_connector->output_flag) && > + (tmp & SDVO_ENABLE)) > return true; > else > return false; Would this function be tidier as: /* Check if this SDVO pipe is on and connected to our output */ if (I915_READ(intel_sdvo->sdvo_reg) & SDVO_ENABLE) return false; intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs); return (active_outputs & intel_sdvo_connector->output_flag) != 0; At the very least the patch by shrunk by adjusting it to only add the earlier check. -Chris -- Chris Wilson, Intel Open Source Technology Centre
