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spi: s3c64xx: add missing check for polling mode

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After the patch "spi/s3c64xx: Fix non-dmaengine usage"
with commit id 563b444e33
submitted by Mark Brown, the spi device detection in polling
mode breaks. This revealed the missing check for polling during
dma prepare. This patch adds the missing check.

Signed-off-by: Girish K S <ks.giri@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Girish K S 2013-06-27 12:26:53 +05:30 committed by Mark Brown
parent ed893559c9
commit d96760f98e
1 changed files with 3 additions and 0 deletions
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3
drivers/spi/spi-s3c64xx.c
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@ -434,6 +434,9 @@ static int s3c64xx_spi_prepare_transfer(struct spi_master *spi)
dma_cap_mask_t mask;
int ret;
if (is_polling(sdd))
return 0;
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);