From: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
Subject: [PATCH] Revert "Revert "ide: try to use PIO Mode 0 during probe if possible""
This reverts commit 24df31acaff8465d797f0006437b45ad0f2a5cb1.
The root cause of reported system hangs was (now fixed) sis5513 bug
and not "ide: try to use PIO Mode 0 during probe if possible" change
(commit 6029336426a2b43e4bc6f4a84be8789a047d139e) so the revert was
incorrect (it simply replaced one regression with the other one).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
Cc: David S. Miller <davem@xxxxxxxxxxxxx>
Cc: Joao Ramos <joao.ramos@xxxxxxx>
Cc: David Fries <david@xxxxxxxxx>
Cc: d.stussy@xxxxxxxxx
---
drivers/ide/ide-probe.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 4d76ba4..63c53d6 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1046,6 +1046,15 @@ 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,
--
1.6.5.rc2
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