linux-kernel - [PATCH] spi_s3c24xx_gpio: Introduce csid parameter to chip

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Date:	Sat, 28 Feb 2009 23:02:38 +0530
From:	Balaji Rao <balajirrao@...nmoko.org>
To:	linux-kernel@...r.kernel.org
Cc:	Ben Dooks <ben@...tec.co.uk>, Andy Green <andy@...nmoko.com>
Subject: [PATCH] spi_s3c24xx_gpio: Introduce csid parameter to chip_select
	callback

In a multiple slave configuration, it is required to know which
chip_select to assert.

Signed-off-by: Balaji Rao <balajirrao@...nmoko.org>
Signed-off-by: Andy Green <andy@...nmoko.com>
Cc: Ben Dooks <ben@...tec.co.uk>
---
 arch/arm/mach-s3c2410/include/mach/spi-gpio.h |    2 +-
 drivers/spi/spi_s3c24xx_gpio.c                |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-s3c2410/include/mach/spi-gpio.h b/arch/arm/mach-s3c2410/include/mach/spi-gpio.h
index 980a099..8189768 100644
--- a/arch/arm/mach-s3c2410/include/mach/spi-gpio.h
+++ b/arch/arm/mach-s3c2410/include/mach/spi-gpio.h
@@ -21,7 +21,7 @@ struct s3c2410_spigpio_info {
 	int			 num_chipselect;
 	int			 bus_num;
 
-	void (*chip_select)(struct s3c2410_spigpio_info *spi, int cs);
+	void (*chip_select)(struct s3c2410_spigpio_info *spi, int csid, int cs);
 };
 
 
diff --git a/drivers/spi/spi_s3c24xx_gpio.c b/drivers/spi/spi_s3c24xx_gpio.c
index f2447a5..006e7e7 100644
--- a/drivers/spi/spi_s3c24xx_gpio.c
+++ b/drivers/spi/spi_s3c24xx_gpio.c
@@ -91,7 +91,7 @@ static void s3c2410_spigpio_chipselect(struct spi_device *dev, int value)
 	struct s3c2410_spigpio *sg = spidev_to_sg(dev);
 
 	if (sg->info && sg->info->chip_select)
-		(sg->info->chip_select)(sg->info, value);
+		(sg->info->chip_select)(sg->info, dev->chip_select, value);
 }
 
 static int s3c2410_spigpio_probe(struct platform_device *dev)

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