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These are updates for platform specific code on 32-bit ARM machines,
essentially anything that can not (yet) be expressed using DT files.
Noteworthy changes include:
- Added support for the TI DRA71x family of SoCs in mach-omap2,
this is an new variant of the the DRA72x/DRA74x automotive
infotainment chips we already supported for a while.
- Added support for the ST STM32F746 SoC, the first Cortex-M7
based microcontroller we support, related to the smaller
STM32F4 family.
- Renesas adds support for r8a7743 and r8a7745 in mach-shmobile,
see http://elinux.org/RZ-G
- SMP is now supported on the OX820 platform
- A lot of code in mach-omap2 gets removed as a follow-up to
removing support for board files in the previous release
- Davinci has some new work to improve USB support
- For i.MX, the performance monitor now supports profiling the
memory controller using 'perf'
Conflicts:
arch/arm/mach-shmobile/setup-rcar-gen2.c: rcar_gen2_clocks_init()
is gone, calling of_clk_init(NULL) is sufficient now.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform updates from Arnd Bergmann:
"These are updates for platform specific code on 32-bit ARM machines,
essentially anything that can not (yet) be expressed using DT files.
Noteworthy changes include:
- Added support for the TI DRA71x family of SoCs in mach-omap2, this
is an new variant of the the DRA72x/DRA74x automotive infotainment
chips we already supported for a while.
- Added support for the ST STM32F746 SoC, the first Cortex-M7 based
microcontroller we support, related to the smaller STM32F4 family.
- Renesas adds support for r8a7743 and r8a7745 in mach-shmobile, see
http://elinux.org/RZ-G
- SMP is now supported on the OX820 platform
- A lot of code in mach-omap2 gets removed as a follow-up to removing
support for board files in the previous release
- Davinci has some new work to improve USB support
- For i.MX, the performance monitor now supports profiling the memory
controller using 'perf'"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (95 commits)
ARM: davinci: da830-evm: use gpio descriptor for mmc pins
ARM: davinci: da850-evm: use gpio descriptor for mmc pins
ARM: davinci: hawk: use gpio descriptor for mmc pins
ARM: ARTPEC-6: add select MFD_SYSCON to MACH_ARTPEC6
ARM: davinci: da8xx: Fix ohci device name
ARM: oxnas: Add OX820 config and makefile entry
ARM: oxnas: Add OX820 SMP support
ARM: davinci: PM: fix build when da850 not compiled in
ARM: orion5x: remove legacy support of ls-chl
ARM: integrator: drop EBI access use syscon
ARM: BCM5301X: Add back handler ignoring external imprecise aborts
ARM: davinci: PM: support da8xx DT platforms
ARM: davinci: PM: cleanup: remove references to pdata
ARM: davinci: PM: rework init, remove platform device
ARM: Kconfig: Introduce MACH_STM32F746 flag
ARM: mach-stm32: Add a new SOC - STM32F746
ARM: shmobile: document SK-RZG1E board
ARM: shmobile: r8a7745: basic SoC support
ARM: imx: mach-imx6ul: add imx6ull support
ARM: zynq: Reserve correct amount of non-DMA RAM
...
Here's the big char/misc driver patches for 4.10-rc1. Lots of tiny
changes over lots of "minor" driver subsystems, the largest being some
new FPGA drivers. Other than that, a few other new drivers, but no new
driver subsystems added for this kernel cycle, a nice change.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here's the big char/misc driver patches for 4.10-rc1. Lots of tiny
changes over lots of "minor" driver subsystems, the largest being some
new FPGA drivers. Other than that, a few other new drivers, but no new
driver subsystems added for this kernel cycle, a nice change.
All of these have been in linux-next with no reported issues"
* tag 'char-misc-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (107 commits)
uio-hv-generic: store physical addresses instead of virtual
Tools: hv: kvp: configurable external scripts path
uio-hv-generic: new userspace i/o driver for VMBus
vmbus: add support for dynamic device id's
hv: change clockevents unbind tactics
hv: acquire vmbus_connection.channel_mutex in vmbus_free_channels()
hyperv: Fix spelling of HV_UNKOWN
mei: bus: enable non-blocking RX
mei: fix the back to back interrupt handling
mei: synchronize irq before initiating a reset.
VME: Remove shutdown entry from vme_driver
auxdisplay: ht16k33: select framebuffer helper modules
MAINTAINERS: add git url for fpga
fpga: Clarify how write_init works streaming modes
fpga zynq: Fix incorrect ISR state on bootup
fpga zynq: Remove priv->dev
fpga zynq: Add missing \n to messages
fpga: Add COMPILE_TEST to all drivers
uio: pruss: add clk_disable()
char/pcmcia: add some error checking in scr24x_read()
...
Pull smp hotplug updates from Thomas Gleixner:
"This is the final round of converting the notifier mess to the state
machine. The removal of the notifiers and the related infrastructure
will happen around rc1, as there are conversions outstanding in other
trees.
The whole exercise removed about 2000 lines of code in total and in
course of the conversion several dozen bugs got fixed. The new
mechanism allows to test almost every hotplug step standalone, so
usage sites can exercise all transitions extensively.
There is more room for improvement, like integrating all the
pointlessly different architecture mechanisms of synchronizing,
setting cpus online etc into the core code"
* 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (60 commits)
tracing/rb: Init the CPU mask on allocation
soc/fsl/qbman: Convert to hotplug state machine
soc/fsl/qbman: Convert to hotplug state machine
zram: Convert to hotplug state machine
KVM/PPC/Book3S HV: Convert to hotplug state machine
arm64/cpuinfo: Convert to hotplug state machine
arm64/cpuinfo: Make hotplug notifier symmetric
mm/compaction: Convert to hotplug state machine
iommu/vt-d: Convert to hotplug state machine
mm/zswap: Convert pool to hotplug state machine
mm/zswap: Convert dst-mem to hotplug state machine
mm/zsmalloc: Convert to hotplug state machine
mm/vmstat: Convert to hotplug state machine
mm/vmstat: Avoid on each online CPU loops
mm/vmstat: Drop get_online_cpus() from init_cpu_node_state/vmstat_cpu_dead()
tracing/rb: Convert to hotplug state machine
oprofile/nmi timer: Convert to hotplug state machine
net/iucv: Use explicit clean up labels in iucv_init()
x86/pci/amd-bus: Convert to hotplug state machine
x86/oprofile/nmi: Convert to hotplug state machine
...
The WDAT watchdog driver uses functionality provided by the watchdog timer
core but it did not select it explicitly. This results following linker
error when only WDAT_WDT is enabled in Kconfig:
drivers/built-in.o: In function `wdat_wdt_probe':
drivers/watchdog/wdat_wdt.c:444: undefined reference to `devm_watchdog_register_device'
Fix this by explicitly selecting WATCHDOG_CORE when WDAT watchdog driver is
enabled.
Fixes: 058dfc767008 (ACPI / watchdog: Add support for WDAT hardware watchdog)
Reported-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This cycle is covering :
- some clock fixes common with sa1100 architecture
- the consequence of the pxa_camera conversion to v4l2
- a small irq related fix for pxa25x device-tree only
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Merge tag 'pxa-for-4.10' of https://github.com/rjarzmik/linux into next/soc
This is the pxa changes for v4.10 cycle.
This cycle is covering :
- some clock fixes common with sa1100 architecture
- the consequence of the pxa_camera conversion to v4l2
- a small irq related fix for pxa25x device-tree only
* tag 'pxa-for-4.10' of https://github.com/rjarzmik/linux:
ARM: pxa: fix pxa25x interrupt init
ARM: pxa: remove duplicated include from spitz.c
ARM: pxa: em-x270: use the new pxa_camera platform_data
ARM: pxa: ezx: use the new pxa_camera platform_data
ARM: pxa: mioa701: use the new pxa_camera platform_data
ARM: pxa: pxa_cplds: honor probe deferral
ARM: sa11x0/pxa: get rid of get_clock_tick_rate
watchdog: sa11x0/pxa: get rid of get_clock_tick_rate
ARM: sa11x0/pxa: acquire timer rate from the clock rate
clk: pxa25x: OSTIMER0 clocks from the main oscillator
Signed-off-by: Olof Johansson <olof@lixom.net>
Split callbacks for RX and async notification events on mei bus to
eliminate synchronization problems and to open way for RX optimizations.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The callback context is redunant as all the information can be
retrived from the device struture of its private data.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It turns out we need to ping the watchdog hardware on resume when we
re-program it. Otherwise this causes inadvertent reset to trigger
right after the resume is complete.
Fixes: 058dfc767008 (ACPI / watchdog: Add support for WDAT hardware watchdog)
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The OS timer rate used for the watchdog can now be fetched from the
standard clock API. This will remove the last user of
get_clock_tick_rate() in both pxa and sa11x0 architectures.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Pull watchdog updates from Wim Van Sebroeck:
- a new watchdog pretimeout governor framework
- support to upload the firmware on the ziirave_wdt
- several fixes and cleanups
* git://www.linux-watchdog.org/linux-watchdog: (26 commits)
watchdog: imx2_wdt: add pretimeout function support
watchdog: softdog: implement pretimeout support
watchdog: pretimeout: add pretimeout_available_governors attribute
watchdog: pretimeout: add option to select a pretimeout governor in runtime
watchdog: pretimeout: add panic pretimeout governor
watchdog: pretimeout: add noop pretimeout governor
watchdog: add watchdog pretimeout governor framework
watchdog: hpwdt: add support for iLO5
fs: compat_ioctl: add pretimeout functions for watchdogs
watchdog: add pretimeout support to the core
watchdog: imx2_wdt: use preferred BIT macro instead of open coded values
watchdog: st_wdt: Remove support for obsolete platforms
watchdog: bindings: Remove obsolete platforms from dt doc.
watchdog: mt7621_wdt: Remove assignment of dev pointer
watchdog: rt2880_wdt: Remove assignment of dev pointer
watchdog: constify watchdog_ops structures
watchdog: tegra: constify watchdog_ops structures
watchdog: iTCO_wdt: constify iTCO_wdt_pm structure
watchdog: cadence_wdt: Fix the suspend resume
watchdog: txx9wdt: Add missing clock (un)prepare calls for CCF
...
Pull uaccess.h prepwork from Al Viro:
"Preparations to tree-wide switch to use of linux/uaccess.h (which,
obviously, will allow to start unifying stuff for real). The last step
there, ie
PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>'
sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \
`git grep -l "$PATT"|grep -v ^include/linux/uaccess.h`
is not taken here - I would prefer to do it once just before or just
after -rc1. However, everything should be ready for it"
* 'work.uaccess2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
remove a stray reference to asm/uaccess.h in docs
sparc64: separate extable_64.h, switch elf_64.h to it
score: separate extable.h, switch module.h to it
mips: separate extable.h, switch module.h to it
x86: separate extable.h, switch sections.h to it
remove stray include of asm/uaccess.h from cacheflush.h
mn10300: remove a bogus processor.h->uaccess.h include
xtensa: split uaccess.h into C and asm sides
bonding: quit messing with IOCTL
kill __kernel_ds_p off
mn10300: finish verify_area() off
frv: move HAVE_ARCH_UNMAPPED_AREA to pgtable.h
exceptions: detritus removal
The change adds watchdog pretimeout notification handling to imx2_wdt
driver, if device data contains information about a valid interrupt.
It is unlikely but still possible (e.g. through a software limitation)
that only a subset of watchdogs on SoC has interrupt lines, hence
functionally the devices from these two groups have different
capabilities, and this is reflected in different watchdog_info
structs assigned to the devices.
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Give devices which do not have hardware support for pretimeout at least a
software version of it.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
The change adds an option to a user with CONFIG_WATCHDOG_SYSFS and
CONFIG_WATCHDOG_PRETIMEOUT_GOV enabled to get information about all
registered watchdog pretimeout governors by reading watchdog device
attribute named "pretimeout_available_governors".
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
The change converts watchdog device attribute "pretimeout_governor" from
read-only to read-write type to allow users to select a desirable
watchdog pretimeout governor in runtime, e.g.
% echo -n panic > /sys/..../watchdog/watchdog0/pretimeout
To get this working a list of registered pretimeout governors is created
and a new helper function watchdog_pretimeout_governor_set() is exported
to watchdog_dev.c.
If a selected governor is gone, a watchdog device pretimeout notification
is delegated to a default built-in pretimeout governor.
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
The change adds panic watchdog pretimeout governor, on watchdog
pretimeout event the kernel shall panic. In general watchdog
pretimeout event means that something essentially bad is going on the
system, for example a process scheduler stalls or watchdog feeder is
killed due to OOM, so printing out information attendant to panic and
before likely unavoidable reboot caused by a watchdog may help to
determine a root cause of the issue.
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
The change adds noop watchdog pretimeout governor, only an
informational message is printed to the kernel log buffer when a
watchdog triggers a pretimeout event.
While introducing the first pretimeout governor the selected design
assumes that the default pretimeout governor is selected by its name
and it is always built-in, thus the default pretimeout governor can
not be unregistered and the correspondent check can be removed from
the watchdog_unregister_governor() function.
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
The change adds a simple watchdog pretimeout framework infrastructure,
its purpose is to allow users to select a desired handling of watchdog
pretimeout events, which may be generated by some watchdog devices.
A user selects a default watchdog pretimeout governor during
compilation stage.
Watchdogs with WDIOF_PRETIMEOUT capability now have one more device
attribute in sysfs, pretimeout_governor attribute is intended to display
the selected watchdog pretimeout governor.
The framework has no impact at runtime on watchdog devices with no
WDIOF_PRETIMEOUT capability set.
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
more victims of indirect include chains - au1200fb
lasat/picvue_proc and watchdog/ath79_wdt
... as well as tb0219, spotted by Sudip Mukherjee
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Here is the big USB, and PHY, and extcon, patchsets for 4.9-rc1.
Full details are in the shortlog, but generally a lot of new hardware
support, usb gadget updates, and Wolfram's great cleanup of USB error
message handling, making the kernel image a tad bit smaller.
All of this has been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull usb/phy/extcon updates from Greg KH:
"Here is the big USB, and PHY, and extcon, patchsets for 4.9-rc1.
Full details are in the shortlog, but generally a lot of new hardware
support, usb gadget updates, and Wolfram's great cleanup of USB error
message handling, making the kernel image a tad bit smaller.
All of this has been in linux-next with no reported issues"
* tag 'usb-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (343 commits)
Revert "usbtmc: convert to devm_kzalloc"
USB: serial: cp210x: Add ID for a Juniper console
usb: Kconfig: using select for USB_COMMON dependency
bluetooth: bcm203x: don't print error when allocating urb fails
mmc: host: vub300: don't print error when allocating urb fails
usb: hub: change CLEAR_FEATURE to SET_FEATURE
usb: core: Introduce a USB port LED trigger
USB: bcma: drop Northstar PHY 2.0 initialization code
usb: core: hcd: add missing header dependencies
usb: musb: da8xx: fix error handling message in probe
usb: musb: Fix session based PM for first invalid VBUS
usb: musb: Fix PM runtime for disconnect after unconfigure
musb: Export musb_root_disconnect for use in modules
usb: misc: legousbtower: Fix NULL pointer deference
cdc-acm: hardening against malicious devices
Revert "usb: gadget: NCM: Protect dev->port_usb using dev->lock"
include: extcon: Fix compilation error caused because of incomplete merge
MAINTAINERS: add tree entry for USB Serial
phy-twl4030-usb: initialize charging-related stuff via pm_runtime
phy-twl4030-usb: better handle musb_mailbox() failure
...
iLO5 will offer the same watchdog timer as previous generations, but the
PCI subsystem vendor ID will be PCI_VENDOR_ID_HP_3PAR (0x1590) instead of
PCI_VENDOR_ID_HP (0x103c). Add 0x1590 to the whitelist and be more
specific when ignoring the 103c,1979 device.
Signed-off-by: Brian Boylston <brian.boylston@hpe.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Fixes the following sparse warnings:
drivers/watchdog/wdat_wdt.c:210:66: warning: Using plain integer as NULL pointer
drivers/watchdog/wdat_wdt.c:235:66: warning: Using plain integer as NULL pointer
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Since the watchdog framework centrializes the IOCTL interfaces of device
drivers now, SETPRETIMEOUT and GETPRETIMEOUT need to be added in the
common code.
Signed-off-by: Robin Gong <b38343@freescale.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
[vzapolskiy: added conditional pretimeout sysfs attribute visibility]
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This is a nonfunctional change, declare register bit values with BIT()
helper macro.
The issues are reported by checkpatch:
CHECK: Prefer using the BIT macro
#40: FILE: drivers/watchdog/imx2_wdt.c:40:
+#define IMX2_WDT_WCR_WDA (1 << 5) /* -> External Reset WDOG_B */
etc.
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
STiH415/6 SoC support is being removed from the kernel.
This patch updates the watchdog driver to remove references
to these obsolete platforms.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Cc: <linux-watchdog@vger.kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Commit 0254e953537c ("watchdog: Drop pointer to watchdog device from
struct watchdog_device") removed the dev pointer from struct
watchdog_device, but this driver was still assigning it, leading to
a compilation error:
drivers/watchdog/mt7621_wdt.c: In function 'mt7621_wdt_probe':
drivers/watchdog/mt7621_wdt.c:142:16: error:
'struct watchdog_device' has no member named 'dev'
Fix this by removing the assignment.
Fixes: 0254e953537c ("watchdog: Drop pointer to watchdog device ...")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org # v4.5+
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Commit 0254e953537c ("watchdog: Drop pointer to watchdog device from
struct watchdog_device") removed the dev pointer from struct
watchdog_device, but this driver was still assigning it, leading to a
compilation error:
drivers/watchdog/rt2880_wdt.c: In function ‘rt288x_wdt_probe’:
drivers/watchdog/rt2880_wdt.c:161:16: error: ‘struct watchdog_device’
has no member named ‘dev’
rt288x_wdt_dev.dev = &pdev->dev;
^
scripts/Makefile.build:289: recipe for target
'drivers/watchdog/rt2880_wdt.o' failed
Fix this by removing the assignment.
Fixes: 0254e953537c ("watchdog: Drop pointer to watchdog device ...")
Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>
Cc: stable@vger.kernel.org # v4.5+
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Check for watchdog_ops structures that are only stored in the ops field of
a watchdog_device structure. This field is declared const, so watchdog_ops
structures that have this property can be declared as const also.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct watchdog_ops i@p = { ... };
@ok@
identifier r.i;
struct watchdog_device e;
position p;
@@
e.ops = &i@p;
@bad@
position p != {r.p,ok.p};
identifier r.i;
struct watchdog_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct watchdog_ops i = { ... };
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Check for watchdog_ops structures that are only stored in the ops field of
a watchdog_device structure. This field is declared const, so watchdog_ops
structures that have this property can be declared as const also.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct watchdog_ops i@p = { ... };
@ok@
identifier r.i;
struct watchdog_device e;
position p;
@@
e.ops = &i@p;
@bad@
position p != {r.p,ok.p};
identifier r.i;
struct watchdog_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct watchdog_ops i = { ... };
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
iTCO_wdt_pm, of type struct dev_pm_ops, is never modified, so declare it as
const.
Done with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Currently even if no users are there the suspend tries to
stop the watchdog and resume starts it.
so after resume the watchdog starts and resets the board.
Fix the same by adding a check for users.
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Starting from Intel Skylake the iTCO watchdog timer registers were moved to
reside in the same register space with SMBus host controller. Not all
needed registers are available though and we need to unhide P2SB (Primary
to Sideband) device briefly to be able to read status of required NO_REBOOT
bit. The i2c-i801.c SMBus driver used to handle this and creation of the
iTCO watchdog platform device.
Windows, on the other hand, does not use the iTCO watchdog hardware
directly even if it is available. Instead it relies on ACPI Watchdog Action
Table (WDAT) table to describe the watchdog hardware to the OS. This table
contains necessary information about the the hardware and also set of
actions which are executed by a driver as needed.
This patch implements a new watchdog driver that takes advantage of the
ACPI WDAT table. We split the functionality into two parts: first part
enumerates the WDAT table and if found, populates resources and creates
platform device for the actual driver. The second part is the driver
itself.
The reason for the split is that this way we can make the driver itself to
be a module and loaded automatically if the WDAT table is found. Otherwise
the module is not loaded.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
While the custom minimal TXx9 clock implementation doesn't need or use
clock (un)prepare calls (they are dummies if !CONFIG_HAVE_CLK_PREPARE),
they are mandatory when using the Common Clock Framework.
Hence add them, to prepare for the advent of CCF.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
The field "owner" is set by core. Thus delete an extra initialisation.
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
This patch adds and entry to the sysfs to start firmware upload process
on the specified device with the requested firmware.
The uploading of the firmware needs only to happen once per firmware
upgrade, as the firmware is stored in persistent storage. If the
firmware upload or the firmware verification fails then we print and
error message and exit.
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Add support for the clock. Currently we enable
at probe and relinquish at remove.
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Coverity reports:
divide_by_zero: In expression readl(dw_wdt->regs + 8) /
clk_get_rate(dw_wdt->clk), division by expression clk_get_rate(dw_wdt->clk)
which may be zero has undefined behavior.
The clock used for the watchdog timer won't change its rate, so read it
only once during probe. Also validate it and abort the probe function
with an error if it is 0.
Cc: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Coverity reports:
Passing argument 152UL /* sizeof (*wdd) */ to function __devres_alloc_node
and then casting the return value to struct watchdog_device ** is
suspicious.
Allocation size needs to be sizeof(*rcwdd), not sizeof(*wdd).
Fixes: 83fbae5a148c ("watchdog: Add a device managed API for ...")
Cc: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
kmalloc will print enough information in case of failure.
Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
WDOG_HW_RUNNING indicates that the hardware watchdog is running while the
watchdog device is closed. The flag may be set by the driver when it is
instantiated to indicate that the watchdog is running, and that the
watchdog core needs to send heartbeat requests to the driver until the
watchdog device is opened.
When the watchdog device is closed, the flag can be used by the driver's
stop function to indicate to the watchdog core that it was unable to stop
the watchdog, and that the watchdog core needs to send heartbeat requests.
This only works if the flag is actually cleared when the watchdog is
stopped. To avoid having to clear the flag in each driver's stop function,
clear it in the watchdog core before calling the stop function.
Reported-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Fixes: ee142889e32f ("watchdog: Introduce WDOG_HW_RUNNING flag")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
In case of error, the function devm_ioremap() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should
be replaced with NULL test.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Remove .owner field if calls are used which set it automatically.
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
