From 9a6d6a2ddabbd32c07f6a38b659e5f3db319fa5a Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Mon, 5 Dec 2011 09:20:23 +0800 Subject: [PATCH] ata: make ata port as parent device of scsi host Currently, the device tree of ata port and scsi host looks as below, /sys/devices/pci0000:00/0000:00:1f.2 (ahci controller) |-- ata1 (ata port) |-- host0 (scsi host) |-- target0:0:0 (scsi target) |-- 0:0:0:0 (disk) This patch makes ata port as parent device of scsi host, then it becomes /sys/devices/pci0000:00/0000:00:1f.2 (ahci controller) |-- ata1 (ata port) |-- host0 (scsi host) |-- target0:0:0 (scsi target) |-- 0:0:0:0 (disk) With this change, the ata port runtime PM is easier. For example, the ata port runtime suspend will happen as, disk suspend --> scsi target suspend --> scsi host suspend --> ata port suspend. Acked-by: Tejun Heo Signed-off-by: Lin Ming Signed-off-by: Jeff Garzik --- drivers/ata/libata-scsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 2a5412e7e9c1..7ae1e771d950 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -3398,7 +3398,7 @@ int ata_scsi_add_hosts(struct ata_host *host, struct scsi_host_template *sht) */ shost->max_host_blocked = 1; - rc = scsi_add_host(ap->scsi_host, ap->host->dev); + rc = scsi_add_host(ap->scsi_host, &ap->tdev); if (rc) goto err_add; }