linux-kernel - [PATCH 16/86] pata_efar: MWDMA0 is unsupported

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Date:	Wed, 25 Nov 2009 18:04:15 +0100
From:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To:	linux-ide@...r.kernel.org
Cc:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 16/86] pata_efar: MWDMA0 is unsupported

From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Subject: [PATCH] pata_efar: MWDMA0 is unsupported

MWDMA0 timings cannot be met with the PIIX based controller
programming interface.

This change should be safe as this is how we have been doing
things in IDE slc90e66 host driver for years.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
---
 drivers/ata/pata_efar.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: b/drivers/ata/pata_efar.c
===================================================================
--- a/drivers/ata/pata_efar.c
+++ b/drivers/ata/pata_efar.c
@@ -252,7 +252,7 @@ static int efar_init_one (struct pci_dev
 	static const struct ata_port_info info = {
 		.flags		= ATA_FLAG_SLAVE_POSS,
 		.pio_mask	= ATA_PIO4,
-		.mwdma_mask	= ATA_MWDMA2,
+		.mwdma_mask	= ATA_MWDMA12_ONLY,
 		.udma_mask 	= ATA_UDMA4,
 		.port_ops	= &efar_ops,
 	};
--
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