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Merge branch 'drm-fixes-4.17' of git://people.freedesktop.org/~agd5f/linux into drm-fixes 

One last fix for 4.17.  Fix a suspend regression in DC.

* 'drm-fixes-4.17' of git://people.freedesktop.org/~agd5f/linux:
  drm/amd/display: Fix BUG_ON during CRTC atomic check update
This commit is contained in:
Dave Airlie 2018-05-30 10:58:31 +10:00
parent ebb442bb35 20fa2ff044
commit 2b85352e3b
1 changed files with 7 additions and 6 deletions
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13
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@ -4695,15 +4695,16 @@ next_crtc:
* We want to do dc stream updates that do not require a
* full modeset below.
*/
if (!enable || !aconnector || modereset_required(new_crtc_state))
if (!(enable && aconnector && new_crtc_state->enable &&
new_crtc_state->active))
continue;
/*
* Given above conditions, the dc state cannot be NULL because:
* 1. We're attempting to enable a CRTC. Which has a...
* 2. Valid connector attached, and
* 3. User does not want to reset it (disable or mark inactive,
* which can happen on a CRTC that's already disabled).
* => It currently exists.
* 1. We're in the process of enabling CRTCs (just been added
* to the dc context, or already is on the context)
* 2. Has a valid connector attached, and
* 3. Is currently active and enabled.
* => The dc stream state currently exists.
*/
BUG_ON(dm_new_crtc_state->stream == NULL);