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spi: pxa2xx: Introduce DMA burst size support

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Some masters may have different DMA burst size than hard coded default.
In such case respect the value given by DMA burst size provided via
platform data.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Andy Shevchenko
2019-03-19 17:48:42 +02:00
committed by Mark Brown
parent 560ee7e910
commit 37821a82e6
4 changed files with 9 additions and 1 deletions
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include/linux/spi/pxa2xx_spi.h
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@@ -25,6 +25,7 @@ struct dma_chan;
struct pxa2xx_spi_controller {
u16 num_chipselect;
u8 enable_dma;
u8 dma_burst_size;
bool is_slave;
/* DMA engine specific config */