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spi/s3c64xx: Take runtime PM reference even if DMA is not supported

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We always need the device to be runtime PM enabled to use it so just skip
the DMA initialisation not the entire prepare when polling.

Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Mark Brown 2013-08-13 19:03:01 +01:00
parent 3c729b4344
commit c12f964357
1 changed files with 18 additions and 19 deletions
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5
drivers/spi/spi-s3c64xx.c
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@ -429,9 +429,7 @@ static int s3c64xx_spi_prepare_transfer(struct spi_master *spi)
dma_cap_mask_t mask;
int ret;
if (is_polling(sdd))
return 0;
if (!is_polling(sdd)) {
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
@ -451,6 +449,7 @@ static int s3c64xx_spi_prepare_transfer(struct spi_master *spi)
ret = -EBUSY;
goto out_rx;
}
}
ret = pm_runtime_get_sync(&sdd->pdev->dev);
if (ret < 0) {