kernel_optimize_test/include/linux/spi
David Brownell 6e538aaf50 spi: documentation: emphasise spi_master.setup() semantics
This is a doc-only patch which I hope will reduce the number of
spi_master controller driver patches starting out with a common
implementation bug.

(As in: almost every spi_master driver I see starts out with its
version of this bug.  Sigh.)

It just re-emphasizes that the setup() method may be called for one
device while a transfer is active on another ...  which means that most
driver implementations shouldn't touch any registers.

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>
2009-04-21 13:41:50 -07:00
..
ad7877.h
ad7879.h
ads7846.h
at73c213.h
corgi_lcd.h
ds1305.h
eeprom.h
flash.h
Kbuild
libertas_spi.h
max7301.h
mcp23s08.h
mmc_spi.h
orion_spi.h
spi_bitbang.h
spi_gpio.h
spi.h
spidev.h
tdo24m.h
tle62x0.h