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drm/i915: don't disable fdi links harder in ilk_crtc_enable 

Because they should have been disabled when shutting down the display
pipe previously. To ensure that this is the case, add a few assserts
instead of unconditionally disabling the fdi link.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2012-09-06 22:08:33 +02:00
parent a14d335920
commit 46b6f8149a
1 changed files with 5 additions and 3 deletions
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8
drivers/gpu/drm/i915/intel_display.c
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@ -3184,10 +3184,12 @@ static void ironlake_crtc_enable(struct drm_crtc *crtc)
is_pch_port = intel_crtc_driving_pch(crtc);
if (is_pch_port)
if (is_pch_port) {
ironlake_fdi_pll_enable(intel_crtc);
else
ironlake_fdi_disable(crtc);
} else {
assert_fdi_tx_disabled(dev_priv, pipe);
assert_fdi_rx_disabled(dev_priv, pipe);
}
for_each_encoder_on_crtc(dev, crtc, encoder)
if (encoder->pre_enable)