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

[mirror_ubuntu-artful-kernel.git] / drivers / ide / ide-probe.c

diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 7f264ed1141b9ebd2e2dacdc933c5994cfbdf618..b609a581df44995ebfe3927a77e1d72d10feff13 100644 (file)
--- 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,