--- zzzz-none-000/linux-4.4.271/drivers/ata/libata-core.c	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/drivers/ata/libata-core.c	2023-04-19 10:22:28.000000000 +0000
@@ -727,6 +727,19 @@
 	return block;
 }
 
+#ifdef CONFIG_ATA_LEDS
+#define LIBATA_BLINK_DELAY 20 /* ms */
+static inline void ata_led_act(struct ata_port *ap)
+{
+	unsigned long led_delay = LIBATA_BLINK_DELAY;
+
+	if (unlikely(!ap->ledtrig))
+		return;
+
+	led_trigger_blink_oneshot(ap->ledtrig, &led_delay, &led_delay, 0);
+}
+#endif
+
 /**
  *	ata_build_rw_tf - Build ATA taskfile for given read/write request
  *	@tf: Target ATA taskfile
@@ -4817,6 +4830,9 @@
 		if (tag < 0)
 			return NULL;
 	}
+#ifdef CONFIG_ATA_LEDS
+	ata_led_act(ap);
+#endif
 
 	qc = __ata_qc_from_tag(ap, tag);
 	qc->tag = tag;
@@ -5715,6 +5731,9 @@
 	ap->stats.unhandled_irq = 1;
 	ap->stats.idle_irq = 1;
 #endif
+#ifdef CONFIG_ATA_LEDS
+	ap->ledtrig = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
+#endif
 	ata_sff_port_init(ap);
 
 	return ap;
@@ -5736,6 +5755,12 @@
 
 		kfree(ap->pmp_link);
 		kfree(ap->slave_link);
+#ifdef CONFIG_ATA_LEDS
+		if (ap->ledtrig) {
+			led_trigger_unregister(ap->ledtrig);
+			kfree(ap->ledtrig);
+		};
+#endif
 		kfree(ap);
 		host->ports[i] = NULL;
 	}
@@ -6182,7 +6207,23 @@
 		host->ports[i]->print_id = atomic_inc_return(&ata_print_id);
 		host->ports[i]->local_port_no = i + 1;
 	}
+#ifdef CONFIG_ATA_LEDS
+	for (i = 0; i < host->n_ports; i++) {
+		if (unlikely(!host->ports[i]->ledtrig))
+			continue;
 
+		snprintf(host->ports[i]->ledtrig_name,
+			sizeof(host->ports[i]->ledtrig_name), "ata%u",
+			host->ports[i]->print_id);
+
+		host->ports[i]->ledtrig->name = host->ports[i]->ledtrig_name;
+
+		if (led_trigger_register(host->ports[i]->ledtrig)) {
+			kfree(host->ports[i]->ledtrig);
+			host->ports[i]->ledtrig = NULL;
+		}
+	}
+#endif
 	/* Create associated sysfs transport objects  */
 	for (i = 0; i < host->n_ports; i++) {
 		rc = ata_tport_add(host->dev,host->ports[i]);