Merge tag 'drm-misc-next-2017-01-09' of git://anongit.freedesktop.org/git/drm-misc into drm-next

Back to regular -misc pulls with reasonable sizes:
- dma_fence error clarification (Chris)
- drm_crtc_from_index helper (Shawn), pile more patches on the m-l to roll
  this out to drivers
- mmu-less support for fbdev helpers from Benjamin
- piles of kerneldoc work
- some polish for crc support from Tomeu and Benjamin
- odd misc stuff all over

* tag 'drm-misc-next-2017-01-09' of git://anongit.freedesktop.org/git/drm-misc: (48 commits)
  dma-fence: Introduce drm_fence_set_error() helper
  dma-fence: Wrap querying the fence->status
  dma-fence: Clear fence->status during dma_fence_init()
  drm: fix compilations issues introduced by "drm: allow to use mmuless SoC"
  drm: Change the return type of the unload hook to void
  drm: add more document for drm_crtc_from_index()
  drm: remove useless parameters from drm_pick_cmdline_mode function
  drm: crc: Call wake_up_interruptible() each time there is a new CRC entry
  drm: allow to use mmuless SoC
  drm: compile drm_vm.c only when needed
  fbmem: add a default get_fb_unmapped_area function
  drm: crc: Wait for a frame before returning from open()
  drm: Move locking into drm_debugfs_crtc_crc_add
  drm/imx: imx-tve: Remove unused variable
  Revert "drm: nouveau: fix build when LEDS_CLASS=m"
  drm: Add kernel-doc for drm_crtc_commit_get/put
  drm/atomic: Fix outdated comment.
  drm: reference count event->completion
  gpu: drm: mgag200: mgag200_main:- Handle error from pci_iomap
  drm: Document deprecated load/unload hook
  ...

drivers/gpu/drm/gma500/Kconfig

@@ -1,6 +1,6 @@
 config DRM_GMA500
 	tristate "Intel GMA5/600 KMS Framebuffer"
-	depends on DRM && PCI && X86
+	depends on DRM && PCI && X86 && MMU
 	select DRM_KMS_HELPER
 	select DRM_TTM
 	# GMA500 depends on ACPI_VIDEO when ACPI is enabled, just like i915

drivers/gpu/drm/gma500/psb_drv.c

@@ -159,7 +159,7 @@ static int psb_do_init(struct drm_device *dev)
 	return 0;
 }
 
-static int psb_driver_unload(struct drm_device *dev)
+static void psb_driver_unload(struct drm_device *dev)
 {
 	struct drm_psb_private *dev_priv = dev->dev_private;
 
@@ -220,7 +220,6 @@ static int psb_driver_unload(struct drm_device *dev)
 		dev->dev_private = NULL;
 	}
 	gma_power_uninit(dev);
-	return 0;
 }
 
 static int psb_driver_load(struct drm_device *dev, unsigned long flags)