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drm/dp_mst: add a function to retrieve vcpi slots

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radeon requires this to get the slots for later filling
out a table on every transition.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dave Airlie
2015-02-24 09:23:55 +10:00
committed by Alex Deucher
parent 875711f0e2
commit 87f5942d1f
2 changed files with 15 additions and 0 deletions
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include/drm/drm_dp_mst_helper.h
+2
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@@ -486,6 +486,8 @@ int drm_dp_calc_pbn_mode(int clock, int bpp);
bool drm_dp_mst_allocate_vcpi(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port, int pbn, int *slots);
int drm_dp_mst_get_vcpi_slots(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);
void drm_dp_mst_reset_vcpi_slots(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_mst_port *port);