soundwire: intel: refine function for wakeen event processing

if a slave has been attached to a bus, the slave->dev_num_sticky
should be non-zero, so we can check this value to skip the
ghost devices defined in ACPI table but not populated in hardware.

Signed-off-by: Rander Wang <rander.wang@intel.com>

drivers/soundwire/intel.c

@@ -473,13 +473,13 @@ void sdw_intel_process_wakeen_event(struct sdw_intel_ctx *ctx)
 		 * the wakeen event and let codec driver check codec status
 		 */
 		list_for_each_entry(slave, &bus->slaves, node) {
-			if (slave->prop.wake_capable) {
-				if (slave->status != SDW_SLAVE_ATTACHED &&
-				    slave->status != SDW_SLAVE_ALERT)
-					continue;
-
+			/*
+			 * discard devices that are defined in ACPI tables but
+			 * not physically present and devices that cannot
+			 * generate wakes
+			 */
+			if (slave->dev_num_sticky && slave->prop.wake_capable)
 				pm_request_resume(&slave->dev);
-			}
 		}
 	}
 }