diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2010-08-16 13:32:24 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-08-16 13:32:24 +0900 |
| commit | bbcf6e8b66ab2fb5ddab4d0fe40c2e6a5ebe5301 (patch) | |
| tree | 071fa9f86dc04a16570be367d04cff3b00c694ad /drivers/spi/spi_bitbang_txrx.h | |
| parent | 57682827b9a5edb52e33af0be9082b51bffcd5c7 (diff) | |
| parent | da5cabf80e2433131bf0ed8993abc0f7ea618c73 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
arch/sh/include/asm/Kbuild
drivers/Makefile
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/spi/spi_bitbang_txrx.h')
| -rw-r--r-- | drivers/spi/spi_bitbang_txrx.h | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/spi/spi_bitbang_txrx.h b/drivers/spi/spi_bitbang_txrx.h index fc033bbf918..c16bf853c3e 100644 --- a/drivers/spi/spi_bitbang_txrx.h +++ b/drivers/spi/spi_bitbang_txrx.h @@ -44,7 +44,7 @@ static inline u32 bitbang_txrx_be_cpha0(struct spi_device *spi, - unsigned nsecs, unsigned cpol, + unsigned nsecs, unsigned cpol, unsigned flags, u32 word, u8 bits) { /* if (cpol == 0) this is SPI_MODE_0; else this is SPI_MODE_2 */ @@ -53,7 +53,8 @@ bitbang_txrx_be_cpha0(struct spi_device *spi, for (word <<= (32 - bits); likely(bits); bits--) { /* setup MSB (to slave) on trailing edge */ - setmosi(spi, word & (1 << 31)); + if ((flags & SPI_MASTER_NO_TX) == 0) + setmosi(spi, word & (1 << 31)); spidelay(nsecs); /* T(setup) */ setsck(spi, !cpol); @@ -61,7 +62,8 @@ bitbang_txrx_be_cpha0(struct spi_device *spi, /* sample MSB (from slave) on leading edge */ word <<= 1; - word |= getmiso(spi); + if ((flags & SPI_MASTER_NO_RX) == 0) + word |= getmiso(spi); setsck(spi, cpol); } return word; @@ -69,7 +71,7 @@ bitbang_txrx_be_cpha0(struct spi_device *spi, static inline u32 bitbang_txrx_be_cpha1(struct spi_device *spi, - unsigned nsecs, unsigned cpol, + unsigned nsecs, unsigned cpol, unsigned flags, u32 word, u8 bits) { /* if (cpol == 0) this is SPI_MODE_1; else this is SPI_MODE_3 */ @@ -79,7 +81,8 @@ bitbang_txrx_be_cpha1(struct spi_device *spi, /* setup MSB (to slave) on leading edge */ setsck(spi, !cpol); - setmosi(spi, word & (1 << 31)); + if ((flags & SPI_MASTER_NO_TX) == 0) + setmosi(spi, word & (1 << 31)); spidelay(nsecs); /* T(setup) */ setsck(spi, cpol); @@ -87,7 +90,8 @@ bitbang_txrx_be_cpha1(struct spi_device *spi, /* sample MSB (from slave) on trailing edge */ word <<= 1; - word |= getmiso(spi); + if ((flags & SPI_MASTER_NO_RX) == 0) + word |= getmiso(spi); } return word; } |