[PATCH 2/3] drm/i915/display: export function to count dsc slices

[Arun R Murthy <arun.r.murthy@intel.com>]

Export the function to calculate dsc slice count. This will be used in
minimum hblank calculation.

Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp_mst.c | 4 ++--
 drivers/gpu/drm/i915/display/intel_dp_mst.h | 3 +++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index d2988b9a6e7bd55d2ea4d34230c4d017e1f4cc93..af98a0d0e8376a79ce1ab6ff3c4f6af30f4d3e73 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -198,8 +198,8 @@ static int intel_dp_mst_calc_pbn(int pixel_clock, int bpp_x16, int bw_overhead)
 	return DIV_ROUND_UP(effective_data_rate * 64, 54 * 1000);
 }
 
-static int intel_dp_mst_dsc_get_slice_count(const struct intel_connector *connector,
-					    const struct intel_crtc_state *crtc_state)
+int intel_dp_mst_dsc_get_slice_count(const struct intel_connector *connector,
+				     const struct intel_crtc_state *crtc_state)
 {
 	const struct drm_display_mode *adjusted_mode =
 		&crtc_state->hw.adjusted_mode;
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.h b/drivers/gpu/drm/i915/display/intel_dp_mst.h
index c1bbfeb02ca9e7afb96156f58143275225245956..b3d5b347c4b5258cefb0e559a5cb8d0d769111cc 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.h
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.h
@@ -12,6 +12,7 @@ struct drm_connector_state;
 struct intel_atomic_state;
 struct intel_crtc;
 struct intel_crtc_state;
+struct intel_connector;
 struct intel_digital_port;
 struct intel_dp;
 struct intel_link_bw_limits;
@@ -35,5 +36,7 @@ int intel_dp_mtp_tu_compute_config(struct intel_dp *intel_dp,
 				   struct intel_crtc_state *crtc_state,
 				   struct drm_connector_state *conn_state,
 				   int min_bpp_x16, int max_bpp_x16, int bpp_step_x16, bool dsc);
+int intel_dp_mst_dsc_get_slice_count(const struct intel_connector *connector,
+				     const struct intel_crtc_state *crtc_state);
 
 #endif /* __INTEL_DP_MST_H__ */

-- 
2.25.1