From 0737ac895afbfbe210557fa5fbafcca932d5fa7c Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Sun, 28 May 2006 11:28:00 -0400 Subject: [PATCH] the latest consensus libata resume fix Okay, just to sum things up. This forces libata to wait for up to 2 seconds for BUSY|DRQ to clear on resume before continuing. [jgarzik adds...] During testing we never saw DRQ asserted, but nonetheless (a) this works and (b) testing for DRQ won't hurt. Signed-off-by: Mark Lord Acked-by: Jens Axboe Signed-off-by: Jeff Garzik --- drivers/scsi/libata-core.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index fa476e7e0a48..b046ffa22101 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -4297,6 +4297,7 @@ static int ata_start_drive(struct ata_port *ap, struct ata_device *dev) int ata_device_resume(struct ata_port *ap, struct ata_device *dev) { if (ap->flags & ATA_FLAG_SUSPENDED) { + ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 200000); ap->flags &= ~ATA_FLAG_SUSPENDED; ata_set_mode(ap); } -- cgit v1.2.3