linux/arch
Barry Song d3cc71f71a spi/bfin_spi: redo GPIO CS handling
The common SPI layers take care of detecting CS conflicts and preventing
two devices from claiming the same CS.  This causes problems for the GPIO
CS support we currently have as we are using CS0 to mean "GPIO CS".  But
if we have multiple devices using a GPIO CS, the common SPI layers see
multiple devices using the virtual "CS0" and reject any such attempts.

To make both work, we introduce an offset define.  This represents the
max number of hardware CS values that the SPI peripheral supports.  If
the CS is below this limit, we know we can use the hardware CS.  If it's
above, we treat it as a GPIO CS.  This keeps the CS unique as seen by
the common code and prevents conflicts.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-18 02:49:36 -04:00
..
alpha Fix up more fallout form alpha signal cleanups 2010-09-30 08:37:38 -07:00
arm Merge master.kernel.org:/home/rmk/linux-2.6-arm 2010-10-13 16:35:33 -07:00
avr32 modules: Fix module_bug_list list corruption race 2010-10-05 11:29:27 -07:00
blackfin spi/bfin_spi: redo GPIO CS handling 2010-10-18 02:49:36 -04:00
cris Make do_execve() take a const filename pointer 2010-08-17 18:07:43 -07:00
frv frv: double syscall restarts, syscall restart in sigreturn() 2010-09-20 10:44:38 -07:00
h8300 modules: Fix module_bug_list list corruption race 2010-10-05 11:29:27 -07:00
ia64 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2010-09-16 12:58:44 -07:00
m32r m32r: test __LITTLE_ENDIAN__ instead of __LITTLE_ENDIAN 2010-10-15 19:37:50 -07:00
m68k arch/m68k/mac/macboing.c: use unsigned long for irqflags 2010-10-01 10:50:58 -07:00
m68knommu m68k,m68knommu: Wire up fanotify_init, fanotify_mark, and prlimit64 2010-09-13 20:28:45 +02:00
microblaze Merge branch 'merge-devicetree' of git://git.secretlab.ca/git/linux-2.6 2010-08-18 09:26:17 -07:00
mips Define _addr_lsb in siginfo_t for mips 2010-10-09 11:42:37 -07:00
mn10300 modules: Fix module_bug_list list corruption race 2010-10-05 11:29:27 -07:00
parisc modules: Fix module_bug_list list corruption race 2010-10-05 11:29:27 -07:00
powerpc powerpc: remove unused variable 2010-10-05 17:27:54 -07:00
s390 modules: Fix module_bug_list list corruption race 2010-10-05 11:29:27 -07:00
score Make do_execve() take a const filename pointer 2010-08-17 18:07:43 -07:00
sh modules: Fix module_bug_list list corruption race 2010-10-05 11:29:27 -07:00
sparc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 2010-09-22 12:09:46 -07:00
tile Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2010-09-24 19:08:39 -07:00
um uml: fix build 2010-10-15 14:42:24 -07:00
x86 Don't dump task struct in a.out core-dumps 2010-10-14 10:57:40 -07:00
xtensa Make do_execve() take a const filename pointer 2010-08-17 18:07:43 -07:00
.gitignore
Kconfig kprobes: Fix Kconfig dependency 2010-09-13 20:41:31 +02:00