spi: fix spi_s3c24xx_gpio num_chipselect

The spi master driver must have num_chipselect set to allow the bus to
initialise.  Pass this through the platform data.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/arm/mach-s3c2410/include/mach/spi-gpio.h b/arch/arm/mach-s3c2410/include/mach/spi-gpio.h
index 3fe8be9..980a099 100644 (file)
--- a/arch/arm/mach-s3c2410/include/mach/spi-gpio.h
+++ b/arch/arm/mach-s3c2410/include/mach/spi-gpio.h
@@ -18,6 +18,7 @@ struct s3c2410_spigpio_info {
        unsigned long            pin_mosi;
        unsigned long            pin_miso;
 
+       int                      num_chipselect;
        int                      bus_num;
 
        void (*chip_select)(struct s3c2410_spigpio_info *spi, int cs);

diff --git a/drivers/spi/spi_s3c24xx_gpio.c b/drivers/spi/spi_s3c24xx_gpio.c
index 8bb2b4e..f2447a5 100644 (file)
--- a/drivers/spi/spi_s3c24xx_gpio.c
+++ b/drivers/spi/spi_s3c24xx_gpio.c
@@ -118,6 +118,7 @@ static int s3c2410_spigpio_probe(struct platform_device *dev)
        /* setup spi bitbang adaptor */
        sp->bitbang.master = spi_master_get(master);
        sp->bitbang.master->bus_num = info->bus_num;
+       sp->bitbang.master->num_chipselect = info->num_chipselect;
        sp->bitbang.chipselect = s3c2410_spigpio_chipselect;
 
        sp->bitbang.txrx_word[SPI_MODE_0] = s3c2410_spigpio_txrx_mode0;