Since support for generic DMA engine has beed added, there is no need
to keep platform specific code (behind the #ifdef CONFIG_S3C_DMA).
Signed-off-by: Lukasz Czerwinski <l.czerwinski@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
drivers/spi/spi-s3c64xx.c | 105 +--------------------------------------------
1 file changed, 1 insertion(+), 104 deletions(-)
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 512b889..106bc09 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -34,10 +34,6 @@
#include <linux/platform_data/spi-s3c64xx.h>
-#ifdef CONFIG_S3C_DMA
-#include <mach/dma.h>
-#endif
-
#define MAX_SPI_PORTS 3
#define S3C64XX_SPI_QUIRK_POLL (1 << 0)
@@ -200,9 +196,7 @@ struct s3c64xx_spi_driver_data {
unsigned cur_speed;
struct s3c64xx_spi_dma_data rx_dma;
struct s3c64xx_spi_dma_data tx_dma;
-#ifdef CONFIG_S3C_DMA
- struct samsung_dma_ops *ops;
-#endif
+
struct s3c64xx_spi_port_config *port_conf;
unsigned int port_id;
unsigned long gpios[4];
@@ -285,102 +279,6 @@ static void s3c64xx_spi_dmacb(void *data)
spin_unlock_irqrestore(&sdd->lock, flags);
}
-#ifdef CONFIG_S3C_DMA
-/* FIXME: remove this section once arch/arm/mach-s3c64xx uses dmaengine */
-
-static struct s3c2410_dma_client s3c64xx_spi_dma_client = {
- .name = "samsung-spi-dma",
-};
-
-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;
- struct samsung_dma_config config;
-
- if (dma->direction == DMA_DEV_TO_MEM) {
- sdd = container_of((void *)dma,
- struct s3c64xx_spi_driver_data, rx_dma);
- config.direction = sdd->rx_dma.direction;
- config.fifo = sdd->sfr_start + S3C64XX_SPI_RX_DATA;
- config.width = sdd->cur_bpw / 8;
- sdd->ops->config((enum dma_ch)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((enum dma_ch)sdd->tx_dma.ch, &config);
- }
-
- info.cap = DMA_SLAVE;
- info.len = len;
- info.fp = s3c64xx_spi_dmacb;
- info.fp_param = dma;
- info.direction = dma->direction;
- info.buf = buf;
-
- sdd->ops->prepare((enum dma_ch)dma->ch, &info);
- sdd->ops->trigger((enum dma_ch)dma->ch);
-}
-
-static int acquire_dma(struct s3c64xx_spi_driver_data *sdd)
-{
- struct samsung_dma_req req;
- struct device *dev = &sdd->pdev->dev;
-
- sdd->ops = samsung_dma_get_ops();
-
- req.cap = DMA_SLAVE;
- req.client = &s3c64xx_spi_dma_client;
-
- sdd->rx_dma.ch = (struct dma_chan *)(unsigned long)sdd->ops->request(
- sdd->rx_dma.dmach, &req, dev, "rx");
- sdd->tx_dma.ch = (struct dma_chan *)(unsigned long)sdd->ops->request(
- sdd->tx_dma.dmach, &req, dev, "tx");
-
- return 1;
-}
-
-static int s3c64xx_spi_prepare_transfer(struct spi_master *spi)
-{
- struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(spi);
-
- /*
- * If DMA resource was not available during
- * probe, no need to continue with dma requests
- * else Acquire DMA channels
- */
- while (!is_polling(sdd) && !acquire_dma(sdd))
- usleep_range(10000, 11000);
-
- return 0;
-}
-
-static int s3c64xx_spi_unprepare_transfer(struct spi_master *spi)
-{
- struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(spi);
-
- /* Free DMA channels */
- if (!is_polling(sdd)) {
- sdd->ops->release((enum dma_ch)sdd->rx_dma.ch,
- &s3c64xx_spi_dma_client);
- sdd->ops->release((enum dma_ch)sdd->tx_dma.ch,
- &s3c64xx_spi_dma_client);
- }
-
- return 0;
-}
-
-static void s3c64xx_spi_dma_stop(struct s3c64xx_spi_driver_data *sdd,
- struct s3c64xx_spi_dma_data *dma)
-{
- sdd->ops->stop((enum dma_ch)dma->ch);
-}
-#else
-
static void prepare_dma(struct s3c64xx_spi_dma_data *dma,
unsigned len, dma_addr_t buf)
{
@@ -483,7 +381,6 @@ static void s3c64xx_spi_dma_stop(struct s3c64xx_spi_driver_data *sdd,
{
dmaengine_terminate_all(dma->ch);
}
-#endif
static void enable_datapath(struct s3c64xx_spi_driver_data *sdd,
struct spi_device *spi,
--
1.7.9.5
--
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