| Commit message (Collapse) | Author | Age | Files | Lines |
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Pull first set of watchdog updates from Wim Van Sebroeck:
"This pull contains:
- The removal of ixp2000_wdt
- The addition of ie6xx_wdt
- Some documentation fixes
- Small fixes and improvements
(Note: Part 2 will contain generic watchdog core changes + conversion
of some more drivers)"
* git://www.linux-watchdog.org/linux-watchdog:
Documentation/watchdog: Fix the file descriptor leak when no cmdline arg given
Documentation/watchdog: close the fd when cmdline arg given
Documentation/watchdog: Fix a small typo
watchdog: s3c2410_wdt: Set timeout to actually achieved timeout
watchdog: wm831x: Convert to gpio_request_one()
watchdog: via_wdt: depends on PCI
watchdog: ie6xx_wdt needs io.h
watchdog: ie6xx_wdt.c: fix printk format warning
watchdog: Add watchdog driver for Intel Atom E6XX
watchdog: it87_wdt: Add support for IT8728F watchdog.
watchdog: i6300esb: don't depend on X86
watchdog: Use module_pci_driver
watchdog: sch311x_wdt.c: Remove RESGEN
watchdog: s3c2410-wdt: Use of_match_ptr().
watchdog: Device tree support for pnx4008-wdt
watchdog: ar7_wdt.c: use devm_request_and_ioremap
watchdog: remove ixp2000 driver
watchdog: sp5100_tco.c: quiet sparse noise about using plain integer was NULL pointer
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we start a infinite loop when user gives ./watchdog-test, and when user
ctrl + c's the program, we just exit immeadiately with out closing the
filedescriptor of the watchdog device. a signal handler is used to
do the job of closing the filedescriptor and exiting the program.
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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in the watchdog test code, the ioctl is performed on the watchdog device
and just doing exit(0) so we leak a filedescripor.
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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While rebasing my "watchdog_dev: Let the driver update the timeout field on
set_timeout success" patch (before I noticed it was already picked up by Wim),
I noticed that the s3c2410_wdt driver may not always have a 1 second
resolution, this patch changes s3c2410wdt_set_heartbeat to update the
timeout to the actually achieved timeout.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Use the more modern API.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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via_wdt is a PCI driver so it should depend on PCI so that
it will not cause build errors.
drivers/watchdog/via_wdt.c:256:1: warning: data definition has no type or storage class
drivers/watchdog/via_wdt.c:256:1: warning: type defaults to 'int' in declaration of 'module_pci_driver'
drivers/watchdog/via_wdt.c:256:1: warning: parameter names (without types) in function declaration
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Fix build error by including <linux/io.h>:
drivers/watchdog/ie6xx_wdt.c:97:2: error: implicit declaration of function 'outb'
drivers/watchdog/ie6xx_wdt.c:133:2: error: implicit declaration of function 'outl'
drivers/watchdog/ie6xx_wdt.c:161:2: error: implicit declaration of function 'inb'
drivers/watchdog/ie6xx_wdt.c:199:3: error: implicit declaration of function 'inl'
drivers/watchdog/ie6xx_wdt.c:203:3: error: implicit declaration of function 'inw'
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Fix printk format warning; use cast to u64 since resource_size_t can
be either u32 or u64.
drivers/watchdog/ie6xx_wdt.c:261:4: warning: format '%x' expects type 'unsigned int', but argument 3 has type 'resource_size_t'
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Add driver for the watchdog timer built into the
Intel Atom E6XX (TunnelCreek) processor.
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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This works the same way IT8721F works, but it supports WDT_PWROK
(checked on the datasheet).
Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.eu>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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i6300esb is on of the watchdogs QEMU can emulate. It is also available
when emulating ARM. The driver works without problems and is quite
useful to test userspace dealing with /dev/watchdog.
Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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This patch converts the PCI watchdog drivers so that they use the
module_pci_driver() macro. This makes the code smaller and simpler.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: Thomas Mingarelli <thomas.mingarelli@hp.com>
Cc: Marc Vertes <marc.vertes@sigfox.com>
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The SCH311x chip contains 2 watchdogs. One is the watchdog programmable
by the runtime register at address 0x65-0x68, the other is the watchdog
inside the power on reset generator. This second watchdog has a fixed
timeout value of ~1.6 seconds and is configurable only by the RESGEN
register.
The BIOS normally takes care of the RESGEN watchdog and disables it (at
least) before the OS is booted.
Unfortunately the sch311x_wdt driver clears bit 0 of the RESGEN register
which has the effect that at the latest 1.6 seconds later, a POR is
triggered.
The attached patch fixes this problem by completely removing any
reference to the RESGEN watchdog from the sch311x_wdt driver.
Signed-off-by: Dave Mueller <d.mueller@elsoft.ch>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Use of_match_ptr definition for the of_match_table.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
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This patch adds device tree support to pnx4008-wdt.c
Signed-off-by: Roland Stigge <stigge@antcom.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Combine request_region and ioremap into devm_request_and_ioremap. This has
the effect of fixing a missing iounmap on the failure of clk_get.
This also introduces a call to clk_put and clears the vbus_clk variable in
the case of failure or device removal.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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The platform is removed, so there are no users of this driver.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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NULL pointer
Pointers should not be compared to plain integers.
Quiets the sparse warning:
warning: Using plain integer as NULL pointer
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
Pull libata update from Jeff Garzik:
"Changes, all of them boring and minor:
1) Ugly MSFT Hyper-V workaround in ata_piix
2) Fix a longstanding error recovery delay caused by excessive
re-re-retries, when media errors occur.
3) Minor hw-specific workarounds and quirks
4) New PATA driver for ep93xx"
* tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
PATA host controller driver for ep93xx
[libata] Add " 2GB ATA Flash Disk"/"ADMA428M" to DMA blacklist
ata_generic: Skip is_intel_ider() check when ata_generic=1 is set
libata-eh don't waste time retrying media errors (v3)
ata_piix: defer disks to the Hyper-V drivers by default
libata: add a host flag to ignore detected ATA devices
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Add PATA host controller driver for ep93xx.
Signed-off-by: Rafal Prylowski <prylowski@metasoft.pl>
Cc: Joao Ramos <joao.ramos@inov.pt>
Cc: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ryan Mallon <rmallon@gmail.com>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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A user has several systems with a couple of models of flash disks with IDE
connectors. These disks work fine in 2.6.18-ish kernels but corrupt data on
new kernels.
The difference appears to be with the default I/O method used by the IDE
controller driver between the kernels. In the older kernels, the
configuration is very conservative and the driver stays in PIO mode. With
new kernels, the ata driver (pata_serverworks) attempts to use UDMA/66
which the drive claims to support. This mode, however, does not appear to
work in DMA mode. The drive does work correctly and no corruption is
seen if the kernel parameter "libata.force=5:pio0,6:pio0" is used to force
the driver to use PIO instead of DMA mode.
Blacklist these drives. Unfortunately the model name of the drive is very
generic, " 2GB ATA Flash Disk", but the revision is specific, "ADMA428M".
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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When ata_generic_ide=1 is set don't do the is_intel_ider() magic
check. We found at least one box who needed that.
Cc: alan@linux.intel.com
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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ATA and SATA drives have had built-in retries for media errors
for as long as they've been commonplace in computers (early 1990s).
When libata stumbles across a bad sector, it can waste minutes
sitting there doing retry after retry before finally giving up
and letting the higher layers deal with it.
This patch removes retries for media errors only.
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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When we are hosted on a Microsoft Hyper-V hypervisor the guest disks
are exposed both via the Hyper-V paravirtualised drivers and via an
emulated SATA disk drive. In this case we want to use the paravirtualised
drivers if we can as they are much more efficient. Note that the Hyper-V
paravirtualised drivers only expose the virtual hard disk devices, the
CDROM/DVD devices must still be enumerated.
Mark the host controller ATA_HOST_IGNORE_ATA to prevent enumeration of
disk devices.
BugLink: http://bugs.launchpad.net/bugs/929545
BugLink: http://bugs.launchpad.net/bugs/942316
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Where devices are visible via more than one host we sometimes wish to
indicate that cirtain devices should be ignored on a specific host. Add a
host flag indicating that this host wishes to ignore ATA specific devices.
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
"New driver for INA219 and INA226, added support for IT8782F and
IT8783E/F to it87 driver, plus cleanups in a couple of drivers."
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (it87) Make temp3 attribute conditional for IT8782F
hwmon: (it87) Convert to use devm_kzalloc and devm_request_region
hwmon: INA219 and INA226 support
hwmon: (it87) Create voltage attributes only if voltage is enabled
hwmon: (ntc_thermistor) Fix checkpatch warning
hwmon: (ntc_thermistor) Optimize and fix build warning
hwmon: (ntc_thermistor) Return error code from hwmon_device_register
hwmon: (ntc_thermistor) Convert to devm_kzalloc
hwmon: (ad7314) Remove unused defines, and rename OFFSET to SHIFT
acpi_power_meter: clean up code around setup_attrs
acpi_power_meter: drop meter_rw_attrs, use common meter_attrs
acpi_power_meter: remove duplicate code between register_{ro,rw}_attrs
acpi_power_meter: use a {RW,RO}_SENSOR_TEMPLATE macro to clean things up
acpi_power_meter: use the same struct {rw,ro}_sensor_template for both
hwmon: use module_pci_driver
hwmon: (it87) Add support for IT8782F and IT8783E/F
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On IT8782F, temp3 is only supported if UART6 is disabled.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
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This makes the code a bit simpler and smaller.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
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Add support for the Texas Instruments INA219 and INA226 power monitors.
Signed-off-by: Lothar Felten <l-felten@ti.com>
[guenter.roeck@ericsson.com: formatting cleanup; check for smbus word data;
select PGA=8 for INA219]
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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On IT8782F and IT8783F, some voltage input pins may be disabled. Don't create
sysfs attribute files if that is the case.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
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Fix checkpatch WARNING: quoted string split across lines
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
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The following build warning is seen in some configurations:
drivers/hwmon/ntc_thermistor.c: In function 'ntc_show_temp':
drivers/hwmon/ntc_thermistor.c:293: warning: 'temp' may be used uninitialized in this function
Fix the problem by re-arranging the code to overload return values with error
codes, and by avoiding error returns whenever possible.
Specifically,
Simplify lookup_comp() to not return an error. Instead, return i_low == i_high
if there is an exact match, or if the ohm value is outside the lookup table
range.
Modify get_temp_mC() to not return an error. Since it only returns an error
after lookup_comp() returned an error, this is quite straightforward after above
change.
Separate ntc_thermistor_read() into a function to read the resistor value (which
can return an error), and the call to get_temp_mC() which doesn't. Call the
functions directly from ntc_show_temp().
Code was tested using a test program, comparing the result of the old and new
versions of get_temp_mC() for resistor values between 0 and 2,000,000 ohm.
As a side effect, this patch reduces code size by approximately 400 bytes on
x86_64.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Donggeun Kim <dg77.kim@samsung.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
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hwmon_device_register() never returns a NULL pointer in case of errors, but
an error value. Use it.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
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This avoids memory leaks, and makes the code a bit simpler and smaller.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
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Remove unused defines AD7314_PD, AD7314_TEMP_SIGN, and ADT7301_TEMP_SIGN.
Rename AD7314_TEMP_OFFSET to the more appropriate AD7314_TEMP_SHIFT.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Jean Delvare <khali@linux-fr.org>
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We don't need to duplicate if (res) checks if we're always running
one or the other.
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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We always register these two together, so move meter_rw_attrs into
meter_ro_attrs and use the same for both since we no longer have two
register_attr paths.
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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Key off the attr->set method being present to set the sysfs attribute
as writable.
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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Similar to how we do PCI/USB device id structs.
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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We don't need both, when we can just key the read/write off of the
presence of the .set member.
Signed-off-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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This patch converts the drivers in drivers/hwmon/* to use module_pci_driver()
macro which makes the code smaller and a bit simpler.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Clemens Ladisch <clemens@ladisch.de>
Cc: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
- Implementation of opportunistic suspend (autosleep) and user space
interface for manipulating wakeup sources.
- Hibernate updates from Bojan Smojver and Minho Ban.
- Updates of the runtime PM core and generic PM domains framework
related to PM QoS.
- Assorted fixes.
* tag 'pm-for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (25 commits)
epoll: Fix user space breakage related to EPOLLWAKEUP
PM / Domains: Make it possible to add devices to inactive domains
PM / Hibernate: Use get_gendisk to verify partition if resume_file is integer format
PM / Domains: Fix computation of maximum domain off time
PM / Domains: Fix link checking when add subdomain
PM / Sleep: User space wakeup sources garbage collector Kconfig option
PM / Sleep: Make the limit of user space wakeup sources configurable
PM / Documentation: suspend-and-cpuhotplug.txt: Fix typo
PM / Domains: Cache device stop and domain power off governor results, v3
PM / Domains: Make device removal more straightforward
PM / Sleep: Fix a mistake in a conditional in autosleep_store()
epoll: Add a flag, EPOLLWAKEUP, to prevent suspend while epoll events are ready
PM / QoS: Create device constraints objects on notifier registration
PM / Runtime: Remove device fields related to suspend time, v2
PM / Domains: Rework default domain power off governor function, v2
PM / Domains: Rework default device stop governor function, v2
PM / Sleep: Add user space interface for manipulating wakeup sources, v3
PM / Sleep: Add "prevent autosleep time" statistics to wakeup sources
PM / Sleep: Implement opportunistic sleep, v2
PM / Sleep: Add wakeup_source_activate and wakeup_source_deactivate tracepoints
...
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* pm-sleep:
epoll: Fix user space breakage related to EPOLLWAKEUP
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Commit 4d7e30d (epoll: Add a flag, EPOLLWAKEUP, to prevent
suspend while epoll events are ready) caused some applications to
malfunction, because they set the bit corresponding to the new
EPOLLWAKEUP flag in their eventpoll flags and they don't have the
new CAP_EPOLLWAKEUP capability.
To prevent that from happening, change epoll_ctl() to clear
EPOLLWAKEUP in epds.events if the caller doesn't have the
CAP_EPOLLWAKEUP capability instead of failing and returning an
error code, which allows the affected applications to function
normally.
Reported-and-tested-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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* pm-sleep:
PM / Hibernate: Use get_gendisk to verify partition if resume_file is integer format
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integer format
Sometimes resume= parameter comes in integer style (e.g. major:minor)
and then name_to_dev_t can not detect partition properly. (especially
async device like usb, mmc).
This patch calls get_gendisk() if resumewait is true and resume_file
is in integer format to work around this problem.
Signed-off-by: Minho Ban <mhban@samsung.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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* pm-domains:
PM / Domains: Make it possible to add devices to inactive domains
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The generic PM domains core code currently requires domains to be in
the "power on" state for adding devices to them, but this limitation
turns out to be inconvenient in some situations, so remove it.
For this purpose, make __pm_genpd_add_device() set the device's
need_restore flag if the domain is in the "power off" state, so that
the device's "restore state" (usually .runtime_resume()) callback
is executed when it is resumed after the domain has been turned on.
If the domain is in the "power on" state, the device's need_restore
flag will be cleared by __pm_genpd_add_device(), so that its "save
state" (usually .runtime_suspend()) callback is executed when the
domain is about to be turned off. However, since that default
behavior need not be always desirable, add a helper function
pm_genpd_dev_need_restore() allowing a device's need_restore flag
to be set/unset at any time.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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