diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-23 16:11:56 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-23 16:11:56 -0700 |
commit | e66d637134b7045ea6f14bdd416cd3695f73ed42 (patch) | |
tree | 09186dbf65d236179f9a2616d0be7a25154f8822 /drivers | |
parent | 5e512d0785e67d9ff41ee4af39bb71fc6161d5c9 (diff) | |
parent | 31dfec74c0dc49521b2e17543ff9dd9dd0221702 (diff) |
Merge tag 'dma' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull samsung arm-soc dma changes from Arnd Bergmann:
"Some platforms are not yet converted to use the dmaengine framework,
including some of the samsung SoCs. In the meantime, we treat this as
platform code and merge the patches through the arm-soc tree."
* tag 'dma' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: SAMSUNG: Fix compiler warning in dma-ops.c file
ASoC: follow the updated samsung DMA common operations
spi/s3c64xx: Add the use of DMA config operation
ARM: SAMSUNG: Add config() function in DMA common operations
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/spi/spi-s3c64xx.c | 33 |
1 files changed, 19 insertions, 14 deletions
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 972a94c58be..3c36cfaa1b9 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -262,14 +262,24 @@ static void prepare_dma(struct s3c64xx_spi_dma_data *dma, unsigned len, dma_addr_t buf) { struct s3c64xx_spi_driver_data *sdd; - struct samsung_dma_prep_info info; + struct samsung_dma_prep info; + struct samsung_dma_config config; - if (dma->direction == DMA_DEV_TO_MEM) + if (dma->direction == DMA_DEV_TO_MEM) { sdd = container_of((void *)dma, struct s3c64xx_spi_driver_data, rx_dma); - else + config.direction = sdd->rx_dma.direction; + config.fifo = sdd->sfr_start + S3C64XX_SPI_RX_DATA; + config.width = sdd->cur_bpw / 8; + sdd->ops->config(sdd->rx_dma.ch, &config); + } else { sdd = container_of((void *)dma, struct s3c64xx_spi_driver_data, tx_dma); + config.direction = sdd->tx_dma.direction; + config.fifo = sdd->sfr_start + S3C64XX_SPI_TX_DATA; + config.width = sdd->cur_bpw / 8; + sdd->ops->config(sdd->tx_dma.ch, &config); + } info.cap = DMA_SLAVE; info.len = len; @@ -284,20 +294,15 @@ static void prepare_dma(struct s3c64xx_spi_dma_data *dma, static int acquire_dma(struct s3c64xx_spi_driver_data *sdd) { - struct samsung_dma_info info; + struct samsung_dma_req req; sdd->ops = samsung_dma_get_ops(); - info.cap = DMA_SLAVE; - info.client = &s3c64xx_spi_dma_client; - info.width = sdd->cur_bpw / 8; - - info.direction = sdd->rx_dma.direction; - info.fifo = sdd->sfr_start + S3C64XX_SPI_RX_DATA; - sdd->rx_dma.ch = sdd->ops->request(sdd->rx_dma.dmach, &info); - info.direction = sdd->tx_dma.direction; - info.fifo = sdd->sfr_start + S3C64XX_SPI_TX_DATA; - sdd->tx_dma.ch = sdd->ops->request(sdd->tx_dma.dmach, &info); + req.cap = DMA_SLAVE; + req.client = &s3c64xx_spi_dma_client; + + sdd->rx_dma.ch = sdd->ops->request(sdd->rx_dma.dmach, &req); + sdd->tx_dma.ch = sdd->ops->request(sdd->tx_dma.dmach, &req); return 1; } |