mtd: gpmi: fix the wrong DMA command.

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=09ef90d965fff295da8d5359ac21e54c02236dba
Commit:     09ef90d965fff295da8d5359ac21e54c02236dba
Parent:     6a918bade9dab40aaef80559bd1169c69e8d69cb
Author:     Huang Shijie <b32955 at freescale.com>
AuthorDate: Mon Mar 12 10:22:18 2012 +0800
Committer:  David Woodhouse <David.Woodhouse at intel.com>
CommitDate: Tue Mar 27 00:56:52 2012 +0100

    mtd: gpmi: fix the wrong DMA command.
    
    The last DMA command of ECC read page is used to disable the BCH module.
    But the original code missed to set the pio[2] which is used to set the
    GPMI_HW_GPMI_ECCCTRL register. fix it now.
    
    Signed-off-by: Huang Shijie <b32955 at freescale.com>
    Signed-off-by: Artem Bityutskiy <artem.bityutskiy at linux.intel.com>
    Signed-off-by: David Woodhouse <David.Woodhouse at intel.com>
---
 drivers/mtd/nand/gpmi-nand/gpmi-lib.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
index 5e3c505..c34dab1 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
@@ -1061,8 +1061,9 @@ int gpmi_read_page(struct gpmi_nand_data *this,
 		| BF_GPMI_CTRL0_ADDRESS(address)
 		| BF_GPMI_CTRL0_XFER_COUNT(geo->page_size);
 	pio[1] = 0;
+	pio[2] = 0; /* clear GPMI_HW_GPMI_ECCCTRL, disable the BCH. */
 	desc = channel->device->device_prep_slave_sg(channel,
-				(struct scatterlist *)pio, 2,
+				(struct scatterlist *)pio, 3,
 				DMA_TRANS_NONE,
 				DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 	if (!desc) {