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-rw-r--r--drivers/gpu/drm/i915/intel_tv.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index 49ab11c667b..106560bc84d 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -1271,8 +1271,12 @@ intel_tv_detect_type (struct intel_tv *intel_tv)
I915_WRITE(TV_DAC, tv_dac);
POSTING_READ(TV_DAC);
+ intel_wait_for_vblank(intel_tv->base.base.dev,
+ to_intel_crtc(intel_tv->base.base.crtc)->pipe);
+
type = -1;
if (wait_for((tv_dac = I915_READ(TV_DAC)) & TVDAC_STATE_CHG, 20) == 0) {
+ DRM_DEBUG_KMS("TV detected: %x, %x\n", tv_ctl, tv_dac);
/*
* A B C
* 0 1 1 Composite
@@ -1289,8 +1293,7 @@ intel_tv_detect_type (struct intel_tv *intel_tv)
DRM_DEBUG_KMS("Detected Component TV connection\n");
type = DRM_MODE_CONNECTOR_Component;
} else {
- DRM_DEBUG_KMS("Unrecognised TV connection: %x\n",
- tv_dac);
+ DRM_DEBUG_KMS("Unrecognised TV connection\n");
}
}