From: Joao Ramos <joao.ramos@inov.pt>
Date: Sun, 17 May 2009 15:22:54 +0000 (+0200)
Subject: ide: try to use PIO Mode 0 during probe if possible
X-Git-Tag: v5.15~33652^2~26
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=6029336426a2b43e4bc6f4a84be8789a047d139e;p=mirror_ubuntu-kernels.git

ide: try to use PIO Mode 0 during probe if possible

Initially set PIO Mode 0 for all host drivers that have a 'set_pio_mode'
method before the IDE core figures out the most suited PIO mode for the
attached device.

Signed-off-by: Joao Ramos <joao.ramos@inov.pt>
Cc: Sergei Shtylyov <sshtylyov@ru.montavista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---

diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 7f264ed1141b..b609a581df44 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1032,6 +1032,15 @@ static void ide_port_init_devices(ide_hwif_t *hwif)
 		if (port_ops && port_ops->init_dev)
 			port_ops->init_dev(drive);
 	}
+
+	ide_port_for_each_dev(i, drive, hwif) {
+		/*
+		 * default to PIO Mode 0 before we figure out
+		 * the most suited mode for the attached device
+		 */
+		if (port_ops && port_ops->set_pio_mode)
+			port_ops->set_pio_mode(drive, 0);
+	}
 }
 
 static void ide_init_port(ide_hwif_t *hwif, unsigned int port,