diff options
| author | Lukasz Czerwinski <l.czerwinski@samsung.com> | 2013-09-02 18:23:29 +0200 |
|---|---|---|
| committer | Chanho Park <chanho61.park@samsung.com> | 2014-11-18 11:44:32 +0900 |
| commit | a1d32b7ac1e6fe85845f3f8c6899a6a077877423 (patch) | |
| tree | fa9d0e2ced22757ba40f9fc02517f1de38e775eb | |
| parent | 08ae79ab454b860235241247d2e831a9a92c75fe (diff) | |
| download | linux-3.10-a1d32b7ac1e6fe85845f3f8c6899a6a077877423.tar.gz linux-3.10-a1d32b7ac1e6fe85845f3f8c6899a6a077877423.tar.bz2 linux-3.10-a1d32b7ac1e6fe85845f3f8c6899a6a077877423.zip | |
spi: spi-s3c64xx: s3c64xx_prepare_dma() clean up
One element scatterlist initizalization is replaced by the hardcoded
initization in the dmaengine_prep_slave_single() function.
Signed-off-by: Lukasz Czerwinski <l.czerwinski@samsung.com>
| -rw-r--r-- | drivers/spi/spi-s3c64xx.c | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 62199077d50..5eacae5a86c 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -374,17 +374,10 @@ static void s3c64xx_dma_deinit_param(struct s3c64xx_spi_driver_data *sdd, static void s3c64xx_prepare_dma(struct s3c64xx_spi_dma_data *dma, unsigned len, dma_addr_t buf) { - struct scatterlist sg; struct dma_async_tx_descriptor *desc; - sg_init_table(&sg, 1); - sg_dma_len(&sg) = len; - sg_set_page(&sg, pfn_to_page(PFN_DOWN(buf)), - len, offset_in_page(buf)); - sg_dma_address(&sg) = buf; - - desc = dmaengine_prep_slave_sg(dma->ch, - &sg, 1, dma->direction, DMA_PREP_INTERRUPT); + desc = dmaengine_prep_slave_single(dma->ch, + dma->dma_phys, len, dma->direction, DMA_PREP_INTERRUPT); desc->callback = s3c64xx_spi_dmacb; desc->callback_param = dma; |