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spi/s3c64xx: Remove code no longer needed as a result of S3C_DMA removal 

Remove functions that only had an effect when using S3C_DMA and inline
dmaengine_terminate_all() since it's pointless to have a function which
expands to a single function call.

Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Mark Brown 2014-02-07 12:39:22 +00:00
Родитель 90e73973d3
Коммит 1b5e1b6949
1 изменённых файлов: 2 добавлений и 37 удалений
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39
drivers/spi/spi-s3c64xx.c
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@ -277,17 +277,6 @@ static void s3c64xx_spi_dmacb(void *data)
spin_unlock_irqrestore(&sdd->lock, flags);
}
static int s3c64xx_spi_map_mssg(struct s3c64xx_spi_driver_data *sdd,
struct spi_message *msg)
{
return 0;
}
static void s3c64xx_spi_unmap_mssg(struct s3c64xx_spi_driver_data *sdd,
struct spi_message *msg)
{
}
static void prepare_dma(struct s3c64xx_spi_dma_data *dma,
struct sg_table *sgt)
{
@ -387,12 +376,6 @@ static int s3c64xx_spi_unprepare_transfer(struct spi_master *spi)
return 0;
}
static void s3c64xx_spi_dma_stop(struct s3c64xx_spi_driver_data *sdd,
struct s3c64xx_spi_dma_data *dma)
{
dmaengine_terminate_all(dma->ch);
}
static bool s3c64xx_spi_can_dma(struct spi_master *master,
struct spi_device *spi,
struct spi_transfer *xfer)
@ -691,13 +674,6 @@ static int s3c64xx_spi_prepare_message(struct spi_master *master,
s3c64xx_spi_config(sdd);
}
/* Map all the transfers if needed */
if (s3c64xx_spi_map_mssg(sdd, msg)) {
dev_err(&spi->dev,
"Xfer: Unable to map message buffers!\n");
return -ENOMEM;
}
/* Configure feedback delay */
writel(cs->fb_delay & 0x3, sdd->regs + S3C64XX_SPI_FB_CLK);
@ -769,10 +745,10 @@ static int s3c64xx_spi_transfer_one(struct spi_master *master,
if (use_dma) {
if (xfer->tx_buf != NULL
&& (sdd->state & TXBUSY))
s3c64xx_spi_dma_stop(sdd, &sdd->tx_dma);
dmaengine_terminate_all(sdd->tx_dma.ch);
if (xfer->rx_buf != NULL
&& (sdd->state & RXBUSY))
s3c64xx_spi_dma_stop(sdd, &sdd->rx_dma);
dmaengine_terminate_all(sdd->rx_dma.ch);
}
} else {
flush_fifo(sdd);
@ -781,16 +757,6 @@ static int s3c64xx_spi_transfer_one(struct spi_master *master,
return status;
}
static int s3c64xx_spi_unprepare_message(struct spi_master *master,
struct spi_message *msg)
{
struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
s3c64xx_spi_unmap_mssg(sdd, msg);
return 0;
}
static struct s3c64xx_spi_csinfo *s3c64xx_get_slave_ctrldata(
struct spi_device *spi)
{
@ -1164,7 +1130,6 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
master->prepare_transfer_hardware = s3c64xx_spi_prepare_transfer;
master->prepare_message = s3c64xx_spi_prepare_message;
master->transfer_one = s3c64xx_spi_transfer_one;
master->unprepare_message = s3c64xx_spi_unprepare_message;
master->unprepare_transfer_hardware = s3c64xx_spi_unprepare_transfer;
master->num_chipselect = sci->num_cs;
master->dma_alignment = 8;