David Brownell bdff549ebe spi: spi_write_then_read() bugfixes ... The "simplify spi_write_then_read()" patch included two regressions from the 2.6.27 behaviors: - The data it wrote out during the (full duplex) read side of the transfer was not zeroed. - It fails completely on half duplex hardware, such as Microwire and most "3-wire" SPI variants. So, revert that patch. A revised version should be submitted at some point, which can get the speedup on standard hardware (full duplex) without breaking on less-capable half-duplex stuff. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: <stable@kernel.org> [2.6.28.x, 2.6.29.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-04-13 15:04:30 -07:00
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atmel_spi.c
atmel_spi.h
au1550_spi.c
Kconfig
Makefile
mpc52xx_psc_spi.c
omap2_mcspi.c
omap_uwire.c
orion_spi.c
pxa2xx_spi.c	pxa2xx_spi: set spi_master.dma_alignment = 8	2009-04-07 08:31:07 -07:00
spi_bfin5xx.c	spi_bfin5xx: remove unused IS_DMA_ALIGNED macro	2009-04-07 08:31:07 -07:00
spi_bitbang.c
spi_butterfly.c
spi_gpio.c
spi_imx.c	spi_imx: set spi_master.dma_alignment = 4	2009-04-07 08:31:07 -07:00
spi_lm70llp.c
spi_mpc83xx.c
spi_s3c24xx_gpio.c
spi_s3c24xx.c
spi_sh_sci.c
spi_txx9.c
spi.c	spi: spi_write_then_read() bugfixes	2009-04-13 15:04:30 -07:00
spidev.c
tle62x0.c
xilinx_spi.c