From: Lyude Date: Fri, 11 Mar 2016 15:57:01 +0000 (-0500) Subject: drm/i915: Call intel_dp_mst_resume() before resuming displays X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a16b7658f4e0d4aec9bc3e75a5f0cc3f7a3a0422;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git drm/i915: Call intel_dp_mst_resume() before resuming displays Since we need MST devices ready before we try to resume displays, calling this after intel_display_resume() can result in some issues with various laptop docks where the monitor won't turn back on after suspending the system. This order was originally changed in commit e7d6f7d70829 ("drm/i915: resume MST after reading back hw state") In order to fix some unclaimed register errors, however the actual cause of those has since been fixed. CC: stable@vger.kernel.org Signed-off-by: Lyude [danvet: Resolve conflicts with locking changes.] Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 20f8dbe7b21c..f73b4f7b2d39 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -770,10 +770,10 @@ static int i915_drm_resume(struct drm_device *dev) dev_priv->display.hpd_irq_setup(dev); spin_unlock_irq(&dev_priv->irq_lock); - intel_display_resume(dev); - intel_dp_mst_resume(dev); + intel_display_resume(dev); + /* * ... but also need to make sure that hotplug processing * doesn't cause havoc. Like in the driver load code we don't