From: Harry Wentland <harry.wentland@amd.com>
Date: Tue, 13 Feb 2018 10:54:26 -0500
Subject: drm/amd/display: Use crtc enable/disable_vblank hooks
Git-commit: c0ec56449dda8ec057292dcab8eac79b936ad186
Patch-mainline: v4.16-rc5
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |   24 ++++++++++++++++++++++
 1 file changed, 24 insertions(+)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -2494,6 +2494,28 @@ dm_crtc_duplicate_state(struct drm_crtc
 	return &state->base;
 }
 
+
+static inline int dm_set_vblank(struct drm_crtc *crtc, bool enable)
+{
+	enum dc_irq_source irq_source;
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+	struct amdgpu_device *adev = crtc->dev->dev_private;
+
+	irq_source = IRQ_TYPE_VBLANK + acrtc->otg_inst;
+	dc_interrupt_set(adev->dm.dc, irq_source, enable);
+	return 0;
+}
+
+static int dm_enable_vblank(struct drm_crtc *crtc)
+{
+	return dm_set_vblank(crtc, true);
+}
+
+static void dm_disable_vblank(struct drm_crtc *crtc)
+{
+	dm_set_vblank(crtc, false);
+}
+
 /* Implemented only the options currently availible for the driver */
 static const struct drm_crtc_funcs amdgpu_dm_crtc_funcs = {
 	.reset = dm_crtc_reset_state,
@@ -2503,6 +2525,8 @@ static const struct drm_crtc_funcs amdgp
 	.page_flip = drm_atomic_helper_page_flip,
 	.atomic_duplicate_state = dm_crtc_duplicate_state,
 	.atomic_destroy_state = dm_crtc_destroy_state,
+	.enable_vblank = dm_enable_vblank,
+	.disable_vblank = dm_disable_vblank,
 };
 
 static enum drm_connector_status