linux/Documentation/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
..
.gitignore .gitignore updates 2008-10-30 11:38:45 -07:00
butterfly
Makefile docsrc: build Documentation/ sources 2008-08-12 16:07:30 -07:00
pxa2xx pxa2xx_spi: fix chip_info defaults and documentation. 2008-10-16 11:21:38 -07:00
spi-lm70llp hwmon: (lm70) Code streamlining and cleanup 2009-01-07 16:37:34 +01:00
spi-summary spi: documentation: emphasise spi_master.setup() semantics 2009-04-21 13:41:50 -07:00
spidev documentation: move spidev_fdx example to its own source file 2008-04-28 08:58:31 -07:00
spidev_fdx.c documentation: move spidev_fdx example to its own source file 2008-04-28 08:58:31 -07:00
spidev_test.c Documentation/spi/spidev_test.c: constify some variables 2007-10-16 09:43:10 -07:00