[PATCH 8/9] drm/amd/display: Drop FreeSync ioctl notification support

[Nicholas Kazlauskas]

This is no longer needed with the addition of the DRM properties.

The base driver correctly checks that notify_freesync is non-null before
calling so there shouldn't be any null pointer dereferences as a result
of this.

Change-Id: If0833b201c81303ca4062393e873faf3ef7c143b
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas at amd.com>
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 71 -------------------
 1 file changed, 71 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index d28bab0f4657..c9de8f555c6a 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1581,76 +1581,6 @@ static void dm_bandwidth_update(struct amdgpu_device *adev)
 	/* TODO: implement later */
 }
 
-static int amdgpu_notify_freesync(struct drm_device *dev, void *data,
-				struct drm_file *filp)
-{
-	struct drm_amdgpu_freesync *args = data;
-	struct drm_atomic_state *state;
-	struct drm_modeset_acquire_ctx ctx;
-	struct drm_crtc *crtc;
-	struct drm_connector *connector;
-	struct drm_connector_state *old_con_state, *new_con_state;
-	int ret = 0;
-	uint8_t i;
-	bool enable = false;
-
-	if (args->op == AMDGPU_FREESYNC_FULLSCREEN_ENTER)
-		enable = true;
-
-	drm_modeset_acquire_init(&ctx, 0);
-
-	state = drm_atomic_state_alloc(dev);
-	if (!state) {
-		ret = -ENOMEM;
-		goto out;
-	}
-	state->acquire_ctx = &ctx;
-
-retry:
-	drm_for_each_crtc(crtc, dev) {
-		ret = drm_atomic_add_affected_connectors(state, crtc);
-		if (ret)
-			goto fail;
-
-		/* TODO rework amdgpu_dm_commit_planes so we don't need this */
-		ret = drm_atomic_add_affected_planes(state, crtc);
-		if (ret)
-			goto fail;
-	}
-
-	for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
-		struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
-		struct drm_crtc_state *new_crtc_state;
-		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
-		struct dm_crtc_state *dm_new_crtc_state;
-
-		if (!acrtc) {
-			ASSERT(0);
-			continue;
-		}
-
-		new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
-		dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
-
-		dm_new_crtc_state->base.variable_refresh = enable;
-	}
-
-	ret = drm_atomic_commit(state);
-
-fail:
-	if (ret == -EDEADLK) {
-		drm_atomic_state_clear(state);
-		drm_modeset_backoff(&ctx);
-		goto retry;
-	}
-
-	drm_atomic_state_put(state);
-
-out:
-	drm_modeset_drop_locks(&ctx);
-	drm_modeset_acquire_fini(&ctx);
-	return ret;
-}
 
 static const struct amdgpu_display_funcs dm_display_funcs = {
 	.bandwidth_update = dm_bandwidth_update, /* called unconditionally */
@@ -1664,7 +1594,6 @@ static const struct amdgpu_display_funcs dm_display_funcs = {
 		dm_crtc_get_scanoutpos,/* called unconditionally */
 	.add_encoder = NULL, /* VBIOS parsing. DAL does it. */
 	.add_connector = NULL, /* VBIOS parsing. DAL does it. */
-	.notify_freesync = amdgpu_notify_freesync,
 
 };
 
-- 
2.17.1