drm/amd/display: Expose hw sequencer gamma function

Signed-off-by: Yongqiang Sun <yongqiang.sun@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>

drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c

@@ -578,7 +578,7 @@ static bool convert_to_custom_float(
 	return true;
 }
 
-static bool dce110_translate_regamma_to_hw_format(const struct dc_transfer_func
+bool dce110_translate_regamma_to_hw_format(const struct dc_transfer_func
 		*output_tf, struct pwl_params *regamma_params)
 {
 	struct curve_points *arr_points;

drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h

@@ -58,5 +58,8 @@ void dce110_power_down(struct core_dc *dc);
 
 void dce110_update_pending_status(struct pipe_ctx *pipe_ctx);
 
+bool dce110_translate_regamma_to_hw_format(const struct dc_transfer_func
+		*output_tf, struct pwl_params *regamma_params);
+
 #endif /* __DC_HWSS_DCE110_H__ */