drm/i915: TV detection fix
Check that the encoder has a real enabled crtc for TV detect, and fix
missing TV type setting after detect.
Signed-off-by: Zhenyu Wang <zhenyu.z.wang@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index 7021798..ceca947 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -1406,6 +1406,7 @@
tv_dac = I915_READ(TV_DAC);
I915_WRITE(TV_DAC, save_tv_dac);
I915_WRITE(TV_CTL, save_tv_ctl);
+ intel_wait_for_vblank(dev);
}
/*
* A B C
@@ -1456,7 +1457,7 @@
mode = reported_modes[0];
drm_mode_set_crtcinfo(&mode, CRTC_INTERLACE_HALVE_V);
- if (encoder->crtc) {
+ if (encoder->crtc && encoder->crtc->enabled) {
type = intel_tv_detect_type(encoder->crtc, intel_output);
} else {
crtc = intel_get_load_detect_pipe(intel_output, &mode, &dpms_mode);
@@ -1467,6 +1468,8 @@
type = -1;
}
+ tv_priv->type = type;
+
if (type < 0)
return connector_status_disconnected;