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drm/i915: Hook connector to encoder during load detection (fixes tv/vga detect)

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With the DRM-driven DPMS code, encoders are considered idle unless a
connector is hooked to them, so mode setting is skipped. This makes load
detection fail as none of the hardware is enabled.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Keith Packard 2009-06-05 18:19:56 -07:00 committed by Eric Anholt
parent 2939e1f533
commit 03d6069912
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/intel_display.c
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@ -2136,6 +2136,7 @@ struct drm_crtc *intel_get_load_detect_pipe(struct intel_output *intel_output,
}
encoder->crtc = crtc;
intel_output->base.encoder = encoder;
intel_output->load_detect_temp = true;
intel_crtc = to_intel_crtc(crtc);
@ -2171,6 +2172,7 @@ void intel_release_load_detect_pipe(struct intel_output *intel_output, int dpms_
if (intel_output->load_detect_temp) {
encoder->crtc = NULL;
intel_output->base.encoder = NULL;
intel_output->load_detect_temp = false;
crtc->enabled = drm_helper_crtc_in_use(crtc);
drm_helper_disable_unused_functions(dev);