drm/i915: extract ums suspend/resume into i915_ums.c
Similarly to how i915_dma.c is shaping up to be the dungeon hole for
all things supporting dri1, create a new one to hide all the crazy
things which are only really useful for ums support. Biggest part is
the register suspend/resume support.
Unfortunately a lot of it is still intermingled with bits and pieces
we might still need, so needs more analysis and needs to stay in
i915_suspend.c for now.
Reviewed-by: Imre Deak <imre.deak@intel.com>
v2: s/modeset_reg/display_reg/ as suggested by Imre, to avoid
confusion between the kernel modeset code and display save/restore to
support ums.
v3: Fixup alphabetical order in the Makefile, spotted by Chris Wilson.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 09753e5..a263a0c 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1730,9 +1730,9 @@
extern int i915_save_state(struct drm_device *dev);
extern int i915_restore_state(struct drm_device *dev);
-/* i915_suspend.c */
-extern int i915_save_state(struct drm_device *dev);
-extern int i915_restore_state(struct drm_device *dev);
+/* i915_ums.c */
+void i915_save_display_reg(struct drm_device *dev);
+void i915_restore_display_reg(struct drm_device *dev);
/* i915_sysfs.c */
void i915_setup_sysfs(struct drm_device *dev_priv);