- 28 Dec, 2015 4 commits
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Guo Zeng authored
This patch adds watchdog driver for CSRatlas7 platform. On CSRatlas7, the 6th timer can act as a watchdog timer when the Watchdog mode is enabled. Signed-off-by:
Guo Zeng <Guo.Zeng@csr.com> Signed-off-by:
William Wang <William.Wang@csr.com> Signed-off-by:
Barry Song <Baohua.Song@csr.com> Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
Wim Van Sebroeck <wim@iguana.be>
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Carlo Caione authored
Add SoC specific data in the watchdog driver for the meson8b SoC. Signed-off-by:
Carlo Caione <carlo@endlessm.com> Signed-off-by:
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Carlo Caione authored
With this patch we refactor the driver code to enable watchdog support for all platforms based on Amlogic meson SoCs. The new default timeout is also now chosen considering the maximum timeout allowed by the SoC. Signed-off-by:
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Mingarelli, Thomas authored
This patch is for the rebranding changes for the corporate split at HP. There are no functional changes with this patch. Signed-off-by:
Tom Mingarelli <thomas.mingarelli@hpe.com> Signed-off-by:
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- 27 Dec, 2015 11 commits
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Geliang Tang authored
Use to_platform_device() instead of open-coding it. Signed-off-by:
Geliang Tang <geliangtang@163.com> Signed-off-by:
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Uwe Kleine-König authored
With the early_enable module parameter the watchdog can be started during driver probe time. If this is requested the bets are good that the timer is already running, so to narrow the gap where the timer is disabled only call the disable function when the timer shouldn't be started. Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by:
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Uwe Kleine-König authored
omap_wdt_start calls pm_runtime_get_sync so dropping a reference just before calling omap_wdt_start doesn't make much sense. Moreover there is no point to use the synchronous variant of pm_runtime_put because the driver doesn't care if the clock is disabled before or after omap_wdt_probe returns. Signed-off-by:
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Jisheng Zhang authored
On 64bit platforms, "(1 << (16 + top)) / clk_get_rate(dw_wdt.clk)" is sign-extended to 64bit then converted to unsigned 64bit, finally divide the clk rate. If the top is the maximum TOP i.e 15, "(1 << (16 +15))" will be sign-extended to 0xffffffff80000000, then converted to unsigned 0xffffffff80000000, which is a huge number, thus the final result is wrong. We fix this issue by giving usigned value(1U in this case) at first. Let's assume clk rate is 25MHZ, Before the patch: dw_wdt_top_in_seconds(15) = -864612050 After the patch: dw_wdt_top_in_seconds(15) = 85 Signed-off-by:
Jisheng Zhang <jszhang@marvell.com> Signed-off-by:
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Li RongQing authored
the softdog has static variables which are accessed if its timer is still running after the driver is unloaded. and lead to crash: $modprobe softdog $echo 1 >/dev/watchdog $modprobe -r softdog CPU 20 Unable to handle kernel paging request at virtual address Oops[#1]: CPU: 20 PID: 0 Comm: swapper/20 Not tainted 4.1.13-WR8.0.0.0_standard ... Modules linked in: [last unloaded: softdog] .... Call Trace: [<ffffffff801e142c>] cascade+0x34/0xb0 [<ffffffff801e1964>] run_timer_softirq+0x30c/0x368 [<ffffffff80181044>] __do_softirq+0x1ec/0x418 [<ffffffff801815d0>] irq_exit+0x90/0x98 [<ffffffff8010749c>] plat_irq_dispatch+0xa4/0x140 [<ffffffff80152740>] ret_from_irq+0x0/0x4 [<ffffffff801529e0>] __r4k_wait+0x20/0x40 [<ffffffff801c2278>] cpu_startup_entry+0x2a0/0x368 [<ffffffff8015fa64>] start_secondary+0x444/0x4d8 add the module ref when timer is running to avoid to unload the softdog module Signed-off-by:Li RongQing <roy.qing.li@gmail.com> Signed-off-by:
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Harald Geyer authored
This allows the system to actually halt even if userspace forgot to disable the watchdog first. Old behaviour was that the watchdog forced the system to boot again. Signed-off-by:
Harald Geyer <harald@ccbib.org> Signed-off-by:
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Huang Rui authored
For SB800 and later chipsets, the register definitions are the same with SB800. And for SB700 and older chipsets, the definitions should be same with SP5100/SB7x0. Signed-off-by:
Huang Rui <ray.huang@amd.com> Cc: Denis Turischev <denis.turischev@compulab.co.il> Signed-off-by:
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Huang Rui authored
sp5100_tco watchdog is also supported on AMD KernCZ chipset of Carrizo platform. Signed-off-by:
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Denis Turischev authored
AMD Mullins watchdog is fully compatible to the previous Hudson chipset, reuse the existent sp5100_tco driver. Signed-off-by:
Denis Turischev <denis.turischev@compulab.co.il> Signed-off-by:
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Pratyush Anand authored
This patch adds following attributes to watchdog device's sysfs interface to read its different status. * state - reads whether device is active or not * identity - reads Watchdog device's identity string. * timeout - reads current timeout. * timeleft - reads timeleft before watchdog generates a reset * bootstatus - reads status of the watchdog device at boot * status - reads watchdog device's internal status bits * nowayout - reads whether nowayout feature was set or not Testing with iTCO_wdt: # cd /sys/class/watchdog/watchdog1/ # ls bootstatus dev device identity nowayout power state subsystem timeleft timeout uevent # cat identity iTCO_wdt # cat timeout 30 # cat state inactive # echo > /dev/watchdog1 # cat timeleft 26 # cat state active # cat bootstatus 0 # cat nowayout 0 Signed-off-by:
Pratyush Anand <panand@redhat.com> Reviewed-by:
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Pratyush Anand authored
We need few sysfs attributes to know different status of a watchdog device. To do that, we need to associate .dev_groups with watchdog_class. So convert it from pointer to static. Putting this static struct in watchdog_dev.c, so that static device attributes defined in that file can be attached to it. Signed-off-by:
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- 13 Dec, 2015 19 commits
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Damien Riegel authored
Get rid of the custom reboot notifier block registration and use the one provided by the watchdog core. Signed-off-by:
Damien Riegel <damien.riegel@savoirfairelinux.com> Reviewed-by:
Vivien Didelot <vivien.didelot@savoirlinux.com> Reviewed-by:
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Damien Riegel authored
Get rid of the custom reboot notifier block registration and use the one provided by the watchdog core. Signed-off-by:
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Damien Riegel authored
Get rid of the custom reboot notifier block registration and use the one provided by the watchdog core. Note that this watchdog used to stop unconditionnaly on SYS_HALT and SYS_POWER_OFF. The core function now calls ops->stop on SYS_HALT and SYS_DOWN. To prevent the watchdog from being stopped on reboot, the "always-running" property must be set, otherwise it will now be stopped. Signed-off-by:
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Damien Riegel authored
Get rid of the custom reboot notifier block registration and use the one provided by the watchdog core. Signed-off-by:
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Damien Riegel authored
Get rid of the custom reboot notifier block registration and use the one provided by the watchdog core. Signed-off-by:
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Damien Riegel authored
Many watchdog drivers register a reboot notifier in order to stop the watchdog on system reboot. Thus we can factorize this code in the watchdog core. For that purpose, a new notifier block is added in watchdog_device for internal use only, as well as a new watchdog_stop_on_reboot helper function. If this helper is called, watchdog core registers the related notifier block and will stop the watchdog when SYS_HALT or SYS_DOWN is received. Since this operation can be critical on some platforms, abort the device registration if the reboot notifier registration fails. Suggested-by:
Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by:
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Damien Riegel authored
Get rid of the custom restart handler by using the one provided by the watchdog core. Signed-off-by:
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Damien Riegel authored
Get rid of the custom restart handler by using the one provided by the watchdog core. Signed-off-by:
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Damien Riegel authored
Get rid of the custom restart handler by using the one provided by the watchdog core. Signed-off-by:
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Damien Riegel authored
Get rid of the custom restart handler by using the one provided by the watchdog core. Signed-off-by:
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Damien Riegel authored
Get rid of the custom restart handler by using the one provided by the watchdog core. Signed-off-by:
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Damien Riegel authored
Get rid of the custom restart handler by using the one provided by the watchdog core. Signed-off-by:
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Damien Riegel authored
Get rid of the custom restart handler by using the one provided by the watchdog core. Signed-off-by:
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Damien Riegel authored
Get rid of the custom restart handler by using the one provided by the watchdog core. Signed-off-by:
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Damien Riegel authored
Get rid of the custom restart handler by using the one provided by the watchdog core. Signed-off-by:
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Damien Riegel authored
Get rid of the custom restart handler by using the one provided by the watchdog core. Signed-off-by:
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Damien Riegel authored
Get rid of the custom restart handler by using the one provided by the watchdog core. Signed-off-by:
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Damien Riegel authored
Get rid of the custom restart handler by using the one provided by the watchdog core. Signed-off-by:
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Damien Riegel authored
Many watchdog drivers implement the same code to register a restart handler. This patch provides a generic way to set such a function. The patch adds a new restart watchdog operation. If a restart priority greater than 0 is needed, the driver can call watchdog_set_restart_priority to set it. Suggested-by:
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- 06 Dec, 2015 1 commit
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Guenter Roeck authored
Guenter has been reviewing watchdog drivers for years, so we might as well make it official. Signed-off-by:
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- 30 Nov, 2015 5 commits
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Linus Torvalds authored
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git://people.freedesktop.org/~airlied/linuxLinus Torvalds authored
Pull nouveau and radeon fixes from Dave Airlie: "Just some nouveau and radeon/amdgpu fixes. The nouveau fixes look large as the firmware context files are regenerated, but the actual change is quite small" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/radeon: make some dpm errors debug only drm/nouveau/volt/pwm/gk104: fix an off-by-one resulting in the voltage not being set drm/nouveau/nvif: allow userspace access to its own client object drm/nouveau/gr/gf100-: fix oops when calling zbc methods drm/nouveau/gr/gf117-: assume no PPC if NV_PGRAPH_GPC_GPM_PD_PES_TPC_ID_MASK is zero drm/nouveau/gr/gf117-: read NV_PGRAPH_GPC_GPM_PD_PES_TPC_ID_MASK from correct GPC drm/nouveau/gr/gf100-: split out per-gpc address calculation macro drm/nouveau/bios: return actual size of the buffer retrieved via _ROM drm/nouveau/instmem: protect instobj list with a spinlock drm/nouveau/pci: enable c800 magic for some unknown Samsung laptop drm/nouveau/pci: enable c800 magic for Clevo P157SM drm/radeon: make rv770_set_sw_state failures non-fatal drm/amdgpu: move dependency handling out of atomic section v2 drm/amdgpu: optimize scheduler fence handling drm/amdgpu: remove vm->mutex drm/amdgpu: add mutex for ba_va->valids/invalids drm/amdgpu: adapt vce session create interface changes drm/amdgpu: vce use multiple cache surface starting from stoney drm/amdgpu: reset vce trap interrupt flag
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git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linuxLinus Torvalds authored
Pull RTC fixes from Alexandre Belloni: "Two fixes for the ds1307 alarm and wakeup" * tag 'rtc-4.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: rtc: ds1307: fix alarm reading at probe time rtc: ds1307: fix kernel splat due to wakeup irq handling
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git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds authored
Pull MIPS fix from Ralf Baechle: "Just a fix for empty loops that may be removed by non-antique GCC" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: Fix delay loops which may be removed by GCC.
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68kLinus Torvalds authored
Pull m68k fixes from Geert Uytterhoeven: "Summary: - Add missing initialization of max_pfn, which is needed to make selftests/vm/mlock2-tests succeed, - Wire up new mlock2 syscall" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: Wire up mlock2 m68knommu: Add missing initialization of max_pfn and {min,max}_low_pfn m68k/mm: sun3 - Add missing initialization of max_pfn and {min,max}_low_pfn m68k/mm: m54xx - Add missing initialization of max_pfn m68k/mm: motorola - Add missing initialization of max_pfn
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