Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
[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>
authored by
Harald Welte
and committed by
Linus Torvalds
d23c6c21
bb2d1c36
+15
+15
drivers/spi/spi_s3c24xx_gpio.c
+15
drivers/spi/spi_s3c24xx_gpio.c
···
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return bitbang_txrx_be_cpha1(spi, nsecs, 0, word, bits);
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}
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static u32 s3c2410_spigpio_txrx_mode2(struct spi_device *spi,
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unsigned nsecs, u32 word, u8 bits)
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{
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return bitbang_txrx_be_cpha0(spi, nsecs, 1, word, bits);
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}
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static u32 s3c2410_spigpio_txrx_mode3(struct spi_device *spi,
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unsigned nsecs, u32 word, u8 bits)
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{
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return bitbang_txrx_be_cpha1(spi, nsecs, 1, word, bits);
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}
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static void s3c2410_spigpio_chipselect(struct spi_device *dev, int value)
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{
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struct s3c2410_spigpio *sg = spidev_to_sg(dev);
···
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sp->bitbang.txrx_word[SPI_MODE_0] = s3c2410_spigpio_txrx_mode0;
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sp->bitbang.txrx_word[SPI_MODE_1] = s3c2410_spigpio_txrx_mode1;
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sp->bitbang.txrx_word[SPI_MODE_2] = s3c2410_spigpio_txrx_mode2;
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sp->bitbang.txrx_word[SPI_MODE_3] = s3c2410_spigpio_txrx_mode3;
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/* set state of spi pins */
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s3c2410_gpio_setpin(sp->info->pin_clk, 0);