diff options
| author | Ben Dooks <ben-linux@fluff.org> | 2008-04-15 14:34:46 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-15 19:35:41 -0700 |
| commit | d1e7780638a9192f15caf590e0081bf915fdef71 (patch) | |
| tree | 82c5419927d9bfaf77aecede0054a815aea058f3 | |
| parent | 50f426b55d919dd017af35bb6a08753d1f262920 (diff) | |
| download | linux-d1e7780638a9192f15caf590e0081bf915fdef71.tar.gz | |
spi: spi_s3c24xx must initialize num_chipselect
The SPI core now expects num_chipselect to be set correctly as due to added checks on the chip being selected before an transfer is allowed. This patch adds a num_cs field to the platform data which needs to be set correctly before adding the SPI platform device. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/spi/spi_s3c24xx.c | 4 | ||||
| -rw-r--r-- | include/asm-arm/arch-s3c2410/spi.h | 1 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/spi/spi_s3c24xx.c b/drivers/spi/spi_s3c24xx.c index 80719ef54365..b7476b888197 100644 --- a/drivers/spi/spi_s3c24xx.c +++ b/drivers/spi/spi_s3c24xx.c @@ -267,6 +267,10 @@ static int __init s3c24xx_spi_probe(struct platform_device *pdev) platform_set_drvdata(pdev, hw); init_completion(&hw->done); + /* setup the master state. */ + + master->num_chipselect = hw->pdata->num_cs; + /* setup the state for the bitbang driver */ hw->bitbang.master = hw->master; diff --git a/include/asm-arm/arch-s3c2410/spi.h b/include/asm-arm/arch-s3c2410/spi.h index 7ca0ed97a6d0..352d33860b63 100644 --- a/include/asm-arm/arch-s3c2410/spi.h +++ b/include/asm-arm/arch-s3c2410/spi.h @@ -15,6 +15,7 @@ struct s3c2410_spi_info { unsigned long pin_cs; /* simple gpio cs */ + unsigned int num_cs; /* total chipselects */ void (*set_cs)(struct s3c2410_spi_info *spi, int cs, int pol); }; |