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| author | Ville Syrjälä | 2015-10-29 20:25:53 +0100 |
|---|---|---|
| committer | Ville Syrjälä | 2015-11-10 15:23:06 +0100 |
| commit | d2d65408cc8a2368e86bda934f6feafd355e5299 (patch) | |
| tree | 5e2925f4f2b8b889902c82ed97354e1fad0c6746 /drivers/gpu/drm/i915/intel_display.c | |
| parent | drm/i915: Enable PCH FIFO underruns later on ILK/SNB/IVB (diff) | |
| download | kernel-qcow2-linux-d2d65408cc8a2368e86bda934f6feafd355e5299.tar.gz kernel-qcow2-linux-d2d65408cc8a2368e86bda934f6feafd355e5299.tar.xz kernel-qcow2-linux-d2d65408cc8a2368e86bda934f6feafd355e5299.zip | |
drm/i915: Enable PCH FIFO underruns later on HSW+
As we did for ILK/SNB/IVB, move the PCH FIFO underrun enable to happen
after the encoder enable on HSW+. And again, for symmetry, move the
the disable to happen before encoder disable.
I've left out the vblank wait before the enable here because I don't
know if it's needed or not. Actually I don't know if this entire
change is needed as I don't have a HSW/BDW with VGA output.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1446146763-31821-5-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index c0b6a2428048..529b13ad4837 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4936,11 +4936,8 @@ static void haswell_crtc_enable(struct drm_crtc *crtc) encoder->pre_enable(encoder); } - if (intel_crtc->config->has_pch_encoder) { - intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, - true); + if (intel_crtc->config->has_pch_encoder) dev_priv->display.fdi_link_train(crtc); - } if (!is_dsi) intel_ddi_enable_pipe_clock(intel_crtc); @@ -4977,6 +4974,10 @@ static void haswell_crtc_enable(struct drm_crtc *crtc) intel_opregion_notify_encoder(encoder, true); } + if (intel_crtc->config->has_pch_encoder) + intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, + true); + /* If we change the relative order between pipe/planes enabling, we need * to change the workaround. */ hsw_workaround_pipe = pipe_config->hsw_workaround_pipe; @@ -5061,6 +5062,10 @@ static void haswell_crtc_disable(struct drm_crtc *crtc) enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder; bool is_dsi = intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DSI); + if (intel_crtc->config->has_pch_encoder) + intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, + false); + for_each_encoder_on_crtc(dev, crtc, encoder) { intel_opregion_notify_encoder(encoder, false); encoder->disable(encoder); @@ -5069,9 +5074,6 @@ static void haswell_crtc_disable(struct drm_crtc *crtc) drm_crtc_vblank_off(crtc); assert_vblank_disabled(crtc); - if (intel_crtc->config->has_pch_encoder) - intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A, - false); intel_disable_pipe(intel_crtc); if (intel_crtc->config->dp_encoder_is_mst) |