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Commit 1b5e1b69 authored by Mark Brown's avatar Mark Brown
Browse files

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: default avatarMark Brown <broonie@linaro.org>
parent 90e73973

drivers/spi/spi-s3c64xx.c

+2 −37
Original line number Diff line number Diff line
@@ -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;