342 	/* The first DP IN port is sink 0 and second is sink 1 */  in tb_lc_dp_sink_from_port()
351 static int tb_lc_dp_sink_available(struct tb_switch *sw, int sink)  in tb_lc_dp_sink_available()  argument
362 	 * Sink is available for CM/SW to use if the allocation valie is  in tb_lc_dp_sink_available()
365 	if (!sink) {  in tb_lc_dp_sink_available()
380  * tb_lc_dp_sink_query() - Is DP sink available for DP IN port
381  * @sw: Switch whose DP sink is queried
384  * Queries through LC SNK_ALLOCATION registers whether DP sink is available
389 	int sink;  in tb_lc_dp_sink_query()  local
392 	 * For older generations sink is always available as there is no  in tb_lc_dp_sink_query()
398 	sink = tb_lc_dp_sink_from_port(sw, in);  in tb_lc_dp_sink_query()
399 	if (sink < 0)  in tb_lc_dp_sink_query()
402 	return !tb_lc_dp_sink_available(sw, sink);  in tb_lc_dp_sink_query()
406  * tb_lc_dp_sink_alloc() - Allocate DP sink
407  * @sw: Switch whose DP sink is allocated
408  * @in: DP IN port the DP sink is allocated for
410  * Allocate DP sink for @in via LC SNK_ALLOCATION registers. If the
417 	int ret, sink;  in tb_lc_dp_sink_alloc()  local
423 	sink = tb_lc_dp_sink_from_port(sw, in);  in tb_lc_dp_sink_alloc()
424 	if (sink < 0)  in tb_lc_dp_sink_alloc()
425 		return sink;  in tb_lc_dp_sink_alloc()
427 	ret = tb_lc_dp_sink_available(sw, sink);  in tb_lc_dp_sink_alloc()
436 	if (!sink) {  in tb_lc_dp_sink_alloc()
451 	tb_port_dbg(in, "sink %d allocated\n", sink);  in tb_lc_dp_sink_alloc()
456  * tb_lc_dp_sink_dealloc() - De-allocate DP sink
457  * @sw: Switch whose DP sink is de-allocated
458  * @in: DP IN port whose DP sink is de-allocated
460  * De-allocate DP sink from @in using LC SNK_ALLOCATION registers.
464 	int ret, sink;  in tb_lc_dp_sink_dealloc()  local
470 	sink = tb_lc_dp_sink_from_port(sw, in);  in tb_lc_dp_sink_dealloc()
471 	if (sink < 0)  in tb_lc_dp_sink_dealloc()
472 		return sink;  in tb_lc_dp_sink_dealloc()
475 	ret = tb_lc_dp_sink_available(sw, sink);  in tb_lc_dp_sink_dealloc()
484 	if (!sink)  in tb_lc_dp_sink_dealloc()
494 	tb_port_dbg(in, "sink %d de-allocated\n", sink);  in tb_lc_dp_sink_dealloc()