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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> |
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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 | ||
spi_bfin5xx.c | ||
spi_bitbang.c | ||
spi_butterfly.c | ||
spi_gpio.c | ||
spi_imx.c | ||
spi_lm70llp.c | ||
spi_mpc83xx.c | ||
spi_s3c24xx_gpio.c | ||
spi_s3c24xx.c | ||
spi_sh_sci.c | ||
spi_txx9.c | ||
spi.c | ||
spidev.c | ||
tle62x0.c | ||
xilinx_spi.c |