From d23c6c21af5624c774adb6fa7155000bfd75ba40 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Tue, 20 Feb 2007 13:58:19 -0800 Subject: [PATCH] [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 Signed-off-by: Ben Dooks Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/spi/spi_s3c24xx_gpio.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) 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);