From: Ben Dooks <[EMAIL PROTECTED]>
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 <[EMAIL PROTECTED]>
Signed-off-by: David Brownell <[EMAIL PROTECTED]>
---
Matching $TITLE this time...
drivers/spi/spi_s3c24xx.c | 4 ++++
include/asm-arm/arch-s3c2410/spi.h | 1 +
2 files changed, 5 insertions(+)
--- at91.orig/drivers/spi/spi_s3c24xx.c 2008-04-15 10:30:26.000000000 -0700
+++ at91/drivers/spi/spi_s3c24xx.c 2008-04-15 10:30:28.000000000 -0700
@@ -263,6 +263,10 @@ static int __init s3c24xx_spi_probe(stru
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;
--- at91.orig/include/asm-arm/arch-s3c2410/spi.h 2008-04-15
10:30:26.000000000 -0700
+++ at91/include/asm-arm/arch-s3c2410/spi.h 2008-04-15 10:30:28.000000000
-0700
@@ -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);
};
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