305 	/* The first DP IN port is sink 0 and second is sink 1 */  in tb_lc_dp_sink_from_port()
314 static int tb_lc_dp_sink_available(struct tb_switch *sw, int sink)  in tb_lc_dp_sink_available()  argument
325 	 * Sink is available for CM/SW to use if the allocation valie is  in tb_lc_dp_sink_available()
328 	if (!sink) {  in tb_lc_dp_sink_available()
343  * tb_lc_dp_sink_query() - Is DP sink available for DP IN port
344  * @sw: Switch whose DP sink is queried
347  * Queries through LC SNK_ALLOCATION registers whether DP sink is available
352 	int sink;  in tb_lc_dp_sink_query()  local
355 	 * For older generations sink is always available as there is no  in tb_lc_dp_sink_query()
361 	sink = tb_lc_dp_sink_from_port(sw, in);  in tb_lc_dp_sink_query()
362 	if (sink < 0)  in tb_lc_dp_sink_query()
365 	return !tb_lc_dp_sink_available(sw, sink);  in tb_lc_dp_sink_query()
369  * tb_lc_dp_sink_alloc() - Allocate DP sink
370  * @sw: Switch whose DP sink is allocated
371  * @in: DP IN port the DP sink is allocated for
373  * Allocate DP sink for @in via LC SNK_ALLOCATION registers. If the
380 	int ret, sink;  in tb_lc_dp_sink_alloc()  local
386 	sink = tb_lc_dp_sink_from_port(sw, in);  in tb_lc_dp_sink_alloc()
387 	if (sink < 0)  in tb_lc_dp_sink_alloc()
388 		return sink;  in tb_lc_dp_sink_alloc()
390 	ret = tb_lc_dp_sink_available(sw, sink);  in tb_lc_dp_sink_alloc()
399 	if (!sink) {  in tb_lc_dp_sink_alloc()
414 	tb_port_dbg(in, "sink %d allocated\n", sink);  in tb_lc_dp_sink_alloc()
419  * tb_lc_dp_sink_dealloc() - De-allocate DP sink
420  * @sw: Switch whose DP sink is de-allocated
421  * @in: DP IN port whose DP sink is de-allocated
423  * De-allocate DP sink from @in using LC SNK_ALLOCATION registers.
427 	int ret, sink;  in tb_lc_dp_sink_dealloc()  local
433 	sink = tb_lc_dp_sink_from_port(sw, in);  in tb_lc_dp_sink_dealloc()
434 	if (sink < 0)  in tb_lc_dp_sink_dealloc()
435 		return sink;  in tb_lc_dp_sink_dealloc()
438 	ret = tb_lc_dp_sink_available(sw, sink);  in tb_lc_dp_sink_dealloc()
447 	if (!sink)  in tb_lc_dp_sink_dealloc()
457 	tb_port_dbg(in, "sink %d de-allocated\n", sink);  in tb_lc_dp_sink_dealloc()