476 	/* The first DP IN port is sink 0 and second is sink 1 */  in tb_lc_dp_sink_from_port()
485 static int tb_lc_dp_sink_available(struct tb_switch *sw, int sink)  in tb_lc_dp_sink_available()  argument
496 	 * Sink is available for CM/SW to use if the allocation valie is  in tb_lc_dp_sink_available()
499 	if (!sink) {  in tb_lc_dp_sink_available()
514  * tb_lc_dp_sink_query() - Is DP sink available for DP IN port
515  * @sw: Switch whose DP sink is queried
518  * Queries through LC SNK_ALLOCATION registers whether DP sink is available
523 	int sink;  in tb_lc_dp_sink_query()  local
526 	 * For older generations sink is always available as there is no  in tb_lc_dp_sink_query()
532 	sink = tb_lc_dp_sink_from_port(sw, in);  in tb_lc_dp_sink_query()
533 	if (sink < 0)  in tb_lc_dp_sink_query()
536 	return !tb_lc_dp_sink_available(sw, sink);  in tb_lc_dp_sink_query()
540  * tb_lc_dp_sink_alloc() - Allocate DP sink
541  * @sw: Switch whose DP sink is allocated
542  * @in: DP IN port the DP sink is allocated for
544  * Allocate DP sink for @in via LC SNK_ALLOCATION registers. If the
551 	int ret, sink;  in tb_lc_dp_sink_alloc()  local
557 	sink = tb_lc_dp_sink_from_port(sw, in);  in tb_lc_dp_sink_alloc()
558 	if (sink < 0)  in tb_lc_dp_sink_alloc()
559 		return sink;  in tb_lc_dp_sink_alloc()
561 	ret = tb_lc_dp_sink_available(sw, sink);  in tb_lc_dp_sink_alloc()
570 	if (!sink) {  in tb_lc_dp_sink_alloc()
585 	tb_port_dbg(in, "sink %d allocated\n", sink);  in tb_lc_dp_sink_alloc()
590  * tb_lc_dp_sink_dealloc() - De-allocate DP sink
591  * @sw: Switch whose DP sink is de-allocated
592  * @in: DP IN port whose DP sink is de-allocated
594  * De-allocate DP sink from @in using LC SNK_ALLOCATION registers.
598 	int ret, sink;  in tb_lc_dp_sink_dealloc()  local
604 	sink = tb_lc_dp_sink_from_port(sw, in);  in tb_lc_dp_sink_dealloc()
605 	if (sink < 0)  in tb_lc_dp_sink_dealloc()
606 		return sink;  in tb_lc_dp_sink_dealloc()
609 	ret = tb_lc_dp_sink_available(sw, sink);  in tb_lc_dp_sink_dealloc()
618 	if (!sink)  in tb_lc_dp_sink_dealloc()
628 	tb_port_dbg(in, "sink %d de-allocated\n", sink);  in tb_lc_dp_sink_dealloc()