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authorHarald Welte <laforge@openmoko.org>2007-02-20 13:58:19 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-20 17:10:16 -0800
commitd23c6c21af5624c774adb6fa7155000bfd75ba40 (patch)
treef10a831dc217e3eaba5291ff4a0c32baba55485e
parentbb2d1c36c7f3a78d482622289c8de0c1a5fe790f (diff)
downloadlinux-stericsson-d23c6c21af5624c774adb6fa7155000bfd75ba40.tar.gz
[PATCH] spi_s3c2410_gpio.c spi mode 2 and 3 support
Add transfer modes 2 and 3 to the S3C24XX gpio SPI driver Signed-off-by: Harald Welte <laforge@openmoko.org> 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>
-rw-r--r--drivers/spi/spi_s3c24xx_gpio.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/spi/spi_s3c24xx_gpio.c b/drivers/spi/spi_s3c24xx_gpio.c
index eda53ed04cbc..611ac22b7cdc 100644
--- a/drivers/spi/spi_s3c24xx_gpio.c
+++ b/drivers/spi/spi_s3c24xx_gpio.c
@@ -73,6 +73,19 @@ static u32 s3c2410_spigpio_txrx_mode1(struct spi_device *spi,
return bitbang_txrx_be_cpha1(spi, nsecs, 0, word, bits);
}
+static u32 s3c2410_spigpio_txrx_mode2(struct spi_device *spi,
+ unsigned nsecs, u32 word, u8 bits)
+{
+ return bitbang_txrx_be_cpha0(spi, nsecs, 1, word, bits);
+}
+
+static u32 s3c2410_spigpio_txrx_mode3(struct spi_device *spi,
+ unsigned nsecs, u32 word, u8 bits)
+{
+ return bitbang_txrx_be_cpha1(spi, nsecs, 1, word, bits);
+}
+
+
static void s3c2410_spigpio_chipselect(struct spi_device *dev, int value)
{
struct s3c2410_spigpio *sg = spidev_to_sg(dev);
@@ -108,6 +121,8 @@ static int s3c2410_spigpio_probe(struct platform_device *dev)
sp->bitbang.txrx_word[SPI_MODE_0] = s3c2410_spigpio_txrx_mode0;
sp->bitbang.txrx_word[SPI_MODE_1] = s3c2410_spigpio_txrx_mode1;
+ sp->bitbang.txrx_word[SPI_MODE_2] = s3c2410_spigpio_txrx_mode2;
+ sp->bitbang.txrx_word[SPI_MODE_3] = s3c2410_spigpio_txrx_mode3;
/* set state of spi pins */
s3c2410_gpio_setpin(sp->info->pin_clk, 0);