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]>
Index: linux-2.6.25-rc8-spi/drivers/spi/spi_s3c24xx.c
===================================================================
--- linux-2.6.25-rc8-spi.orig/drivers/spi/spi_s3c24xx.c 2008-04-11
15:25:28.000000000 +0100
+++ linux-2.6.25-rc8-spi/drivers/spi/spi_s3c24xx.c 2008-04-11
15:25:32.000000000 +0100
@@ -265,6 +265,10 @@ 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;
Index: linux-2.6.25-rc8-spi/include/asm-arm/arch-s3c2410/spi.h
===================================================================
--- linux-2.6.25-rc8-spi.orig/include/asm-arm/arch-s3c2410/spi.h
2008-04-11 15:25:28.000000000 +0100
+++ linux-2.6.25-rc8-spi/include/asm-arm/arch-s3c2410/spi.h 2008-04-11
15:25:32.000000000 +0100
@@ -18,6 +18,7 @@ struct spi_board_info;
struct s3c2410_spi_info {
unsigned long pin_cs; /* simple gpio cs */
+ unsigned int num_cs; /* total chipselects */
unsigned long board_size;
struct spi_board_info *board_info;
--
Ben ([EMAIL PROTECTED], http://www.fluff.org/)
'a smiley only costs 4 bytes'
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