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drm/fsl-dcu: enable IRQ before drm_atomic_helper_resume() 

The resume helpers wait for a vblank to occurre hence IRQ need
to be enabled. This avoids a warning as follows during resume:
  WARNING: CPU: 0 PID: 314 at drivers/gpu/drm/drm_atomic_helper.c:1249 drm_atomic_helper_wait_for_vblanks.part.1+0x284/0x288
  [CRTC:28:crtc-0] vblank wait timed out

Signed-off-by: Stefan Agner <stefan@agner.ch>
This commit is contained in:
Stefan Agner 2017-11-10 10:15:28 +01:00
parent 9306e99657
commit 9fd99f4f3f
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
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@ -232,6 +232,7 @@ static int fsl_dcu_drm_pm_resume(struct device *dev)
if (fsl_dev->tcon)
fsl_tcon_bypass_enable(fsl_dev->tcon);
fsl_dcu_drm_init_planes(fsl_dev->drm);
enable_irq(fsl_dev->irq);
drm_atomic_helper_resume(fsl_dev->drm, fsl_dev->state);
console_lock();
@ -239,7 +240,6 @@ static int fsl_dcu_drm_pm_resume(struct device *dev)
console_unlock();
drm_kms_helper_poll_enable(fsl_dev->drm);
enable_irq(fsl_dev->irq);
return 0;
}