From 31bbb668fbe71a207d38ecd1797f4cd5b8bd710b Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 18 Jan 2010 07:18:17 +0000 Subject: amd74xx: don't change UDMA settings when programming PIO timings Based on libata pata_amd host driver. Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: David S. Miller --- drivers/ide/amd74xx.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers/ide') diff --git a/drivers/ide/amd74xx.c b/drivers/ide/amd74xx.c index 628cd2e5fed..108e9b67685 100644 --- a/drivers/ide/amd74xx.c +++ b/drivers/ide/amd74xx.c @@ -3,7 +3,7 @@ * IDE driver for Linux. * * Copyright (c) 2000-2002 Vojtech Pavlik - * Copyright (c) 2007-2008 Bartlomiej Zolnierkiewicz + * Copyright (c) 2007-2010 Bartlomiej Zolnierkiewicz * * Based on the work of: * Andre Hedrick @@ -70,7 +70,8 @@ static void amd_set_speed(struct pci_dev *dev, u8 dn, u8 udma_mask, default: return; } - pci_write_config_byte(dev, AMD_UDMA_TIMING + offset + (3 - dn), t); + if (timing->udma) + pci_write_config_byte(dev, AMD_UDMA_TIMING + offset + 3 - dn, t); } /* @@ -340,6 +341,6 @@ static void __exit amd74xx_ide_exit(void) module_init(amd74xx_ide_init); module_exit(amd74xx_ide_exit); -MODULE_AUTHOR("Vojtech Pavlik"); +MODULE_AUTHOR("Vojtech Pavlik, Bartlomiej Zolnierkiewicz"); MODULE_DESCRIPTION("AMD PCI IDE driver"); MODULE_LICENSE("GPL"); -- cgit v1.2.3-70-g09d2