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authorAnton Vorontsov <avorontsov@ru.mvista.com>2009-06-18 01:26:05 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-18 22:03:42 +0200
commit7390284290b184a7f4bb648ca15dc62c3dea3e75 (patch)
treeb829f116cb11e3c066616e69f15375f4b013becf
parentspi: move more spi_setup() functionality into core (diff)
downloadlinux-7390284290b184a7f4bb648ca15dc62c3dea3e75.tar.xz
linux-7390284290b184a7f4bb648ca15dc62c3dea3e75.zip
mpc52xx_psc_spi: convert to cs_control callback
mpc52xx_psc_spi driver is the last user of the legacy activate_cs and deactivate_cs callbacks, so convert the driver to the cs_control hook and remove the legacy callbacks from fsl_spi_platform_data struct. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/spi/mpc52xx_psc_spi.c22
-rw-r--r--include/linux/fsl_devices.h4
2 files changed, 9 insertions, 17 deletions
diff --git a/drivers/spi/mpc52xx_psc_spi.c b/drivers/spi/mpc52xx_psc_spi.c
index bdae9f908978..1b74d5ca03f3 100644
--- a/drivers/spi/mpc52xx_psc_spi.c
+++ b/drivers/spi/mpc52xx_psc_spi.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/init.h>
+#include <linux/types.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/of_platform.h>
@@ -30,8 +31,7 @@
struct mpc52xx_psc_spi {
/* fsl_spi_platform data */
- void (*activate_cs)(u8, u8);
- void (*deactivate_cs)(u8, u8);
+ void (*cs_control)(struct spi_device *spi, bool on);
u32 sysclk;
/* driver internal data */
@@ -111,18 +111,16 @@ static void mpc52xx_psc_spi_activate_cs(struct spi_device *spi)
out_be16((u16 __iomem *)&psc->ccr, ccr);
mps->bits_per_word = cs->bits_per_word;
- if (mps->activate_cs)
- mps->activate_cs(spi->chip_select,
- (spi->mode & SPI_CS_HIGH) ? 1 : 0);
+ if (mps->cs_control)
+ mps->cs_control(spi, (spi->mode & SPI_CS_HIGH) ? 1 : 0);
}
static void mpc52xx_psc_spi_deactivate_cs(struct spi_device *spi)
{
struct mpc52xx_psc_spi *mps = spi_master_get_devdata(spi->master);
- if (mps->deactivate_cs)
- mps->deactivate_cs(spi->chip_select,
- (spi->mode & SPI_CS_HIGH) ? 1 : 0);
+ if (mps->cs_control)
+ mps->cs_control(spi, (spi->mode & SPI_CS_HIGH) ? 0 : 1);
}
#define MPC52xx_PSC_BUFSIZE (MPC52xx_PSC_RFNUM_MASK + 1)
@@ -382,15 +380,13 @@ static int __init mpc52xx_psc_spi_do_probe(struct device *dev, u32 regaddr,
mps->irq = irq;
if (pdata == NULL) {
dev_warn(dev, "probe called without platform data, no "
- "(de)activate_cs function will be called\n");
- mps->activate_cs = NULL;
- mps->deactivate_cs = NULL;
+ "cs_control function will be called\n");
+ mps->cs_control = NULL;
mps->sysclk = 0;
master->bus_num = bus_num;
master->num_chipselect = 255;
} else {
- mps->activate_cs = pdata->activate_cs;
- mps->deactivate_cs = pdata->deactivate_cs;
+ mps->cs_control = pdata->cs_control;
mps->sysclk = pdata->sysclk;
master->bus_num = pdata->bus_num;
master->num_chipselect = pdata->max_chipselect;
diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h
index 244677cc082b..43fc95d822d5 100644
--- a/include/linux/fsl_devices.h
+++ b/include/linux/fsl_devices.h
@@ -79,10 +79,6 @@ struct fsl_spi_platform_data {
u16 max_chipselect;
void (*cs_control)(struct spi_device *spi, bool on);
u32 sysclk;
-
- /* Legacy hooks, used by mpc52xx_psc_spi driver. */
- void (*activate_cs)(u8 cs, u8 polarity);
- void (*deactivate_cs)(u8 cs, u8 polarity);
};
struct mpc8xx_pcmcia_ops {