summaryrefslogtreecommitdiff
path: root/drivers/watchdog/sbc_fitpc2_wdt.c
AgeCommit message (Collapse)AuthorFilesLines
2012-03-29Merge tag 'split-asm_system_h-for-linus-20120328' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system Pull "Disintegrate and delete asm/system.h" from David Howells: "Here are a bunch of patches to disintegrate asm/system.h into a set of separate bits to relieve the problem of circular inclusion dependencies. I've built all the working defconfigs from all the arches that I can and made sure that they don't break. The reason for these patches is that I recently encountered a circular dependency problem that came about when I produced some patches to optimise get_order() by rewriting it to use ilog2(). This uses bitops - and on the SH arch asm/bitops.h drags in asm-generic/get_order.h by a circuituous route involving asm/system.h. The main difficulty seems to be asm/system.h. It holds a number of low level bits with no/few dependencies that are commonly used (eg. memory barriers) and a number of bits with more dependencies that aren't used in many places (eg. switch_to()). These patches break asm/system.h up into the following core pieces: (1) asm/barrier.h Move memory barriers here. This already done for MIPS and Alpha. (2) asm/switch_to.h Move switch_to() and related stuff here. (3) asm/exec.h Move arch_align_stack() here. Other process execution related bits could perhaps go here from asm/processor.h. (4) asm/cmpxchg.h Move xchg() and cmpxchg() here as they're full word atomic ops and frequently used by atomic_xchg() and atomic_cmpxchg(). (5) asm/bug.h Move die() and related bits. (6) asm/auxvec.h Move AT_VECTOR_SIZE_ARCH here. Other arch headers are created as needed on a per-arch basis." Fixed up some conflicts from other header file cleanups and moving code around that has happened in the meantime, so David's testing is somewhat weakened by that. We'll find out anything that got broken and fix it.. * tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system: (38 commits) Delete all instances of asm/system.h Remove all #inclusions of asm/system.h Add #includes needed to permit the removal of asm/system.h Move all declarations of free_initmem() to linux/mm.h Disintegrate asm/system.h for OpenRISC Split arch_align_stack() out from asm-generic/system.h Split the switch_to() wrapper out of asm-generic/system.h Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h Create asm-generic/barrier.h Make asm-generic/cmpxchg.h #include asm-generic/cmpxchg-local.h Disintegrate asm/system.h for Xtensa Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt] Disintegrate asm/system.h for Tile Disintegrate asm/system.h for Sparc Disintegrate asm/system.h for SH Disintegrate asm/system.h for Score Disintegrate asm/system.h for S390 Disintegrate asm/system.h for PowerPC Disintegrate asm/system.h for PA-RISC Disintegrate asm/system.h for MN10300 ...
2012-03-28Remove all #inclusions of asm/system.hDavid Howells1-1/+0
Remove all #inclusions of asm/system.h preparatory to splitting and killing it. Performed with the following command: perl -p -i -e 's!^#\s*include\s*<asm/system[.]h>.*\n!!' `grep -Irl '^#\s*include\s*<asm/system[.]h>' *` Signed-off-by: David Howells <dhowells@redhat.com>
2012-03-27watchdog: nowayout is boolWim Van Sebroeck1-2/+2
nowayout is actually a boolean value. So make it bool for all watchdog device drivers. Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27watchdog: Use pr_<fmt> and pr_<level>Joe Perches1-5/+4
Use the current logging styles. Make sure all output has a prefix. Add missing newlines. Remove now unnecessary PFX, NAME, and miscellaneous other #defines. Coalesce formats. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-15watchdog: cleanup spaces before tabsWim Van Sebroeck1-1/+1
cleanup spaces before tabs in drivers/watchdog/ Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-03-10watchdog: sbc_fitpc2_wdt, fix crash on systems without DMI_BOARD_NAMEJiri Slaby1-2/+5
Some systems don't provide DMI_BOARD_NAME in their DMI tables. Avoid crash in such situations in fitpc2_wdt_init. The fix is to check if the dmi_get_system_info return value is NULL. The oops: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff81253ae6>] strstr+0x26/0xa0 PGD 3966e067 PUD 39605067 PMD 0 Oops: 0000 [#1] SMP last sysfs file: /sys/devices/system/cpu/cpu1/cache/index2/shared_cpu_map CPU 1 Modules linked in: ... Pid: 1748, comm: modprobe Not tainted 2.6.37-22-default #1 /Bochs RIP: 0010:[<ffffffff81253ae6>] [<ffffffff81253ae6>] strstr+0x26/0xa0 RSP: 0018:ffff88003ad73f18 EFLAGS: 00010206 RAX: 0000000000000000 RBX: 00000000ffffffed RCX: 00000000ffffffff RDX: ffffffffa003f4cc RSI: ffffffffa003f4c2 RDI: 0000000000000000 ... CR2: 0000000000000000 CR3: 000000003b7ac000 CR4: 00000000000006e0 ... Process modprobe (pid: 1748, threadinfo ffff88003ad72000, task ffff88002e6365c0) Stack: ... Call Trace: [<ffffffffa004201f>] fitpc2_wdt_init+0x1f/0x13c [sbc_fitpc2_wdt] [<ffffffff810002da>] do_one_initcall+0x3a/0x170 ... Code: f3 c3 0f 1f 00 80 3e 00 53 48 89 f8 74 1b 48 89 f2 0f 1f 40 00 48 83 c2 01 80 3a 00 75 f7 49 89 d0 48 89 f8 49 29 f0 75 02 5b c3 <80> 3f 00 74 0e 0f 1f 44 00 00 48 83 c0 01 80 38 00 75 f7 49 89 Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-04-26watchdog: sbc_fitpc2_wdt: fixed "scheduling while atomic" bug.Denis Turischev1-5/+5
spinlock need to be replaced by mutex because of sleep functions inside wdt_send_data. Signed-off-by: Denis Turischev <denis@compulab.co.il> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-04-26watchdog: sbc_fitpc2_wdt: fixed I/O operations orderDenis Turischev1-2/+2
There are fitpc2 compatible boards that hang with existent i/o operations order. Solution is to switch between writing to data and command ports. Signed-off-by: Denis Turischev <denis@compulab.co.il> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-03-07[WATCHDOG] watchdog_info constifyWim Van Sebroeck1-1/+1
make the watchdog_info struct const where possible. Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-01-25[WATCHDOG] sbc_fitpc2_wdt: fix I/O space access technique.Denis Turischev1-6/+5
The mdelay function was used between I/O access commands, that causes peak in CPU usage. Fix it by substitution mdelay to msleep. Expand usage on fitPC2 compatible boards according to DMI identification. Signed-off-by: Denis Turischev <denis@compulab.co.il> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2009-11-10[WATCHDOG] SBC-FITPC2 watchdog driver registration fixDenis Turischev1-1/+1
This patch fixes device registration process. Signed-off-by: Denis Turischev <denis@compulab.co.il> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2009-09-18[WATCHDOG] add SBC-FITPC2 watchdog driverDenis Turischev1-0/+267
Add support for watchdog found on SBC-FITPC2 board. Signed-off-by: Denis Turischev <denis@compulab.co.il> Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-27 01:43:33 +0300