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spi: Fix for v3.16

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A single bugfix from the merge window, fixing an issue with DMA at slow
 speeds on Intel hardware.
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Merge tag 'spi-v3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fix from Mark Brown:
 "A single bugfix from the merge window, fixing an issue with DMA at
  slow speeds on Intel hardware"

* tag 'spi-v3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi/pxa2xx: change default supported DMA burst size to 1
This commit is contained in:
Linus Torvalds 2014-06-17 14:20:17 -10:00
commit 66a521bdda
1 changed files with 1 additions and 1 deletions
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2
drivers/spi/spi-pxa2xx-dma.c
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@ -368,7 +368,7 @@ int pxa2xx_spi_set_dma_burst_and_threshold(struct chip_data *chip,
* otherwise we use the default. Also we use the default FIFO
* thresholds for now.
*/
*burst_code = chip_info ? chip_info->dma_burst_size : 16;
*burst_code = chip_info ? chip_info->dma_burst_size : 1;
*threshold = SSCR1_RxTresh(RX_THRESH_DFLT)
| SSCR1_TxTresh(TX_THRESH_DFLT);