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drm/i915: Skip SDVO/HDMI init when the chipset tells us it's not present.

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This saves startup time from probing SDVO, and saves setting up HDMI outputs
on G4X devices that don't have them.

Signed-off-by: Dave Airlie <airlied@linux.ie>
This commit is contained in:
Eric Anholt 2009-01-22 13:01:02 -08:00 committed by Dave Airlie
parent e806b49574
commit 725e30ad66
1 changed files with 11 additions and 7 deletions
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6
drivers/gpu/drm/i915/intel_display.c
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@ -1452,6 +1452,7 @@ static int intel_connector_clones(struct drm_device *dev, int type_mask)
static void intel_setup_outputs(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct drm_connector *connector;
intel_crt_init(dev);
@ -1463,13 +1464,16 @@ static void intel_setup_outputs(struct drm_device *dev)
if (IS_I9XX(dev)) {
int found;
if (I915_READ(SDVOB) & SDVO_DETECTED) {
found = intel_sdvo_init(dev, SDVOB);
if (!found && SUPPORTS_INTEGRATED_HDMI(dev))
intel_hdmi_init(dev, SDVOB);
}
if (!IS_G4X(dev) || (I915_READ(SDVOB) & SDVO_DETECTED)) {
found = intel_sdvo_init(dev, SDVOC);
if (!found && SUPPORTS_INTEGRATED_HDMI(dev))
intel_hdmi_init(dev, SDVOC);
}
} else
intel_dvo_init(dev);