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| author | Shawn Guo <shawn.guo@linaro.org> | 2012-04-11 13:29:31 +0800 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@linux.intel.com> | 2012-04-20 15:35:58 +0530 |
| commit | d04525ed0323709711277563a2c76e446a017423 (patch) | |
| tree | 76766ed95d698f3ec98762301e42f703e774381c /drivers/mtd | |
| parent | 60f2951e3ad9b833bc12e2ea7652be2611771792 (diff) | |
| download | linux-stable-d04525ed0323709711277563a2c76e446a017423.tar.gz linux-stable-d04525ed0323709711277563a2c76e446a017423.tar.bz2 linux-stable-d04525ed0323709711277563a2c76e446a017423.zip | |
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.c | 1 |
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 75b1dde16358..9ec51cec2e14 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)); |