From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Mon, 28 Apr 2008 21:44:39 +0000 (+0200)
Subject: ide-{floppy,tape,scsi}: 400ns delay is required after executing the command
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3910dde6410e742f8bd3f516ee9b1a7114abbad0;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

ide-{floppy,tape,scsi}: 400ns delay is required after executing the command

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---

diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index b9983c4a1fac..da79248633a4 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -698,6 +698,7 @@ static ide_startstop_t idefloppy_issue_pc(ide_drive_t *drive,
 		/* Issue the packet command */
 		hwif->OUTBSYNC(drive, WIN_PACKETCMD,
 			       hwif->io_ports.command_addr);
+		ndelay(400);
 		return (*pkt_xfer_routine) (drive);
 	}
 }
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index f3f231de1835..dc88431a2359 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -1058,6 +1058,7 @@ static ide_startstop_t idetape_issue_pc(ide_drive_t *drive,
 	} else {
 		hwif->OUTBSYNC(drive, WIN_PACKETCMD,
 			       hwif->io_ports.command_addr);
+		ndelay(400);
 		return idetape_transfer_pc(drive);
 	}
 }
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index 8f716da5b7de..8b1c783e259b 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -576,6 +576,7 @@ static ide_startstop_t idescsi_issue_pc(ide_drive_t *drive,
 		/* Issue the packet command */
 		hwif->OUTBSYNC(drive, WIN_PACKETCMD,
 			       hwif->io_ports.command_addr);
+		ndelay(400);
 		return idescsi_transfer_pc(drive);
 	}
 }