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authorShawn Guo <shawn.guo@linaro.org>2012-04-11 13:29:31 +0800
committerVinod Koul <vinod.koul@linux.intel.com>2012-04-20 15:35:58 +0530
commitd04525ed0323709711277563a2c76e446a017423 (patch)
tree76766ed95d698f3ec98762301e42f703e774381c /drivers/mtd
parent60f2951e3ad9b833bc12e2ea7652be2611771792 (diff)
dma: mxs-dma: enable channel in device_issue_pending call
Enable channel in device_issue_pending call, so that the order between cookie assignment and channel enabling can be ensured naturally. It fixes the mxs gpmi-nand breakage which is caused by the incorrect order of cookie assigning and channel enabling. Suggested-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Tested-by: Huang Shijie <b32955@freescale.com> Tested-by <samgandhi9@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/gpmi-nand/gpmi-nand.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 75b1dde1635..9ec51cec2e1 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -266,6 +266,7 @@ int start_dma_without_bch_irq(struct gpmi_nand_data *this,
desc->callback = dma_irq_callback;
desc->callback_param = this;
dmaengine_submit(desc);
+ dma_async_issue_pending(get_dma_chan(this));
/* Wait for the interrupt from the DMA block. */
err = wait_for_completion_timeout(dma_c, msecs_to_jiffies(1000));