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* pm-core:
PM / sleep: Drop unused `info' variable
PM / Runtime: Move ignore_children flag under CONFIG_PM
PM / Runtime: Fix error path in pm_runtime_force_resume()
* pm-domains:
PM / Domains: Drop unnecessary wakeup code from pm_genpd_prepare()
PM / Domains: Remove redundant pm_runtime_get|put*() in pm_genpd_prepare()
PM / Domains: Remove ->save|restore_state() callbacks
PM / Domains: Rename pm_genpd_runtime_suspend|resume()
PM / Domains: Rename stop_ok to suspend_ok for the genpd governor
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* pm-devfreq:
PM / devfreq: style/typo fixes
PM / devfreq: exynos: Add the detailed correlation for Exynos5422 bus
PM / devfreq: event: Find the instance of devfreq-event device by using phandle
PM / devfreq: event: Add new Exynos NoC probe driver
MAINTAINERS: Add samsung bus frequency driver entry
PM / devfreq: exynos: Remove unused exynos4/5 busfreq driver
PM / devfreq: exynos: Add the detailed correlation between sub-blocks and power line
PM / devfreq: exynos: Update documentation for bus devices using passive governor
PM / devfreq: exynos: Add support of bus frequency of sub-blocks using passive governor
PM / devfreq: Add new passive governor
PM / devfreq: Add new DEVFREQ_TRANSITION_NOTIFIER notifier
PM / devfreq: Add devfreq_get_devfreq_by_phandle()
PM / devfreq: exynos: Add documentation for generic exynos bus frequency driver
PM / devfreq: exynos: Add generic exynos bus frequency driver
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* pm-cpuidle:
cpuidle: Replace ktime_get() with local_clock()
drivers: firmware: psci: use const and __initconst for psci_cpuidle_ops
soc: qcom: spm: Use const and __initconst for qcom_cpuidle_ops
ARM: cpuidle: constify return value of arm_cpuidle_get_ops()
ARM: cpuidle: add const qualifier to cpuidle_ops member in structures
intel_idle: add BXT support
cpuidle: Indicate when a device has been unregistered
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* pm-cpufreq: (63 commits)
intel_pstate: Clean up get_target_pstate_use_performance()
intel_pstate: Use sample.core_avg_perf in get_avg_pstate()
intel_pstate: Clarify average performance computation
intel_pstate: Avoid unnecessary synchronize_sched() during initialization
cpufreq: schedutil: Make default depend on CONFIG_SMP
cpufreq: powernv: del_timer_sync when global and local pstate are equal
cpufreq: powernv: Move smp_call_function_any() out of irq safe block
intel_pstate: Clean up intel_pstate_get()
cpufreq: schedutil: Make it depend on CONFIG_SMP
cpufreq: governor: Fix handling of special cases in dbs_update()
cpufreq: intel_pstate: Ignore _PPC processing under HWP
cpufreq: arm_big_little: use generic OPP functions for {init, free}_opp_table
cpufreq: tango: Use generic platdev driver
cpufreq: Fix GOV_LIMITS handling for the userspace governor
cpufreq: mvebu: Move cpufreq code into drivers/cpufreq/
cpufreq: dt: Kill platform-data
mvebu: Use dev_pm_opp_set_sharing_cpus() to mark OPP tables as shared
cpufreq: dt: Identify cpu-sharing for platforms without operating-points-v2
cpufreq: governor: Change confusing struct field and variable names
cpufreq: intel_pstate: Enable PPC enforcement for servers
...
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* pm-opp:
PM / OPP: Move CONFIG_OF dependent code in a separate file
PM / OPP: add non-OF versions of dev_pm_opp_{cpumask_, }remove_table
PM / OPP: pass cpumask by reference
PM / OPP: Add dev_pm_opp_get_sharing_cpus()
PM / OPP: Mark cpumask as const in dev_pm_opp_set_sharing_cpus()
PM / OPP: -ENOSYS is applicable only to syscalls
PM / OPP: Mark shared-opp for non-dt case
PM / OPP: Relocate dev_pm_opp_set_sharing_cpus()
PM / OPP: dev_pm_opp_set_sharing_cpus() doesn't depend on CONFIG_OF
PM / OPP: Add missing doc style comments
PM / OPP: Propagate the error returned by _find_opp_table()
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When reverting an update property changeset entry that created a
property the reverse operation is a remove property and not an update.
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Rob Herring <robh@kernel.org>
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This exports of_detach_node() for PowerPC PowerNV PCI hotplug
driver. No functional changes introduced.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
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This returns the allocate memory chunk, storing the unflattened device
tree, from of_fdt_unflatten_tree() so that memory chunk can be released
on demand in PowerNV PCI hotplug driver.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
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This adds one more argument to of_fdt_unflatten_tree() to specify
the parent node of the FDT blob that is going to be unflattened.
In the result, the function can be used to unflatten FDT blob that
represents device sub-tree in PowerNV PCI hotplug driver.
Cc: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Rob Herring <robh@kernel.org>
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This renames unflatten_dt_node() to unflatten_dt_nodes() as it
populates multiple device nodes from FDT blob. No logical changes
introduced.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
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In current implementation, unflatten_dt_node() is called recursively
to unflatten device nodes in FDT blob. It's stress to limited stack
capacity, especially to adopt the function to unflatten device sub-tree
that possibly has multiple root nodes. In that case, we runs out of
stack and the system can't boot up successfully.
In order to reuse the function to unflatten device sub-tree, this avoids
calling the function recursively, meaning the device nodes are unflattened
in one call on unflatten_dt_node(): two arrays are introduced to track the
parent path size and the device node of current level of depth, which will
be used by the device node on next level of depth to be unflattened. All
device nodes in more than 64 level of depth are dropped and hopefully,
the system can boot up successfully with the partial device-tree.
Also, the parameter "poffset" and "fpsize" are unused and dropped and the
parameter "dryrun" is figured out from "mem == NULL". Besides, the return
value of the function is changed to indicate the size of memory consumed by
the unflatten device tree or error code.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
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The function unflatten_dt_node() is called recursively to unflatten
device nodes and properties in the FDT blob. It looks complicated
and hard to be understood.
This splits the function into 3 functions: populate_properties(),
populate_node() and unflatten_dt_node(). populate_properties(),
which is called by populate_node(), creates properties for the
indicated device node. The later one creates the device nodes
from FDT blob. populate_node() gets the offset in FDT blob for
next device nodes and then calls populate_node(). No logical
changes introduced.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
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Some eMMCs set the partition switch timeout too low.
Now typically eMMCs are considered a critical component (e.g. because
they store the root file system) and consequently are expected to be
reliable. Thus we can neglect the use case where eMMCs can't switch
reliably and we might want a lower timeout to facilitate speedy
recovery.
Although we could employ a quirk for the cards that are affected (if
we could identify them all), as described above, there is little
benefit to having a low timeout, so instead simply set a minimum
timeout.
The minimum is set to 300ms somewhat arbitrarily - the examples that
have been seen had a timeout of 10ms but were sometimes taking 60-70ms.
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Tested on a Salvator-X board with a Spectec SDW-823 WLAN card.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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I have two SDIO WLAN cards which specify being SDIO Rev. 1.1 cards but
their FUNCE tuple reports the smaller size of a Rev 1.0 card. So,
enforce 1.0 on these cards to avoid reading the not present registers.
They are not really used anyhow. My cards initialize properly after this
patch.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Add some logging to make it clear just how the emmc timeout
was handled.
Signed-off-by: Ken Sumrall <ksumrall@android.com>
[AmitP: cherry-picked this Android patch from aosp
common kernel android-4.4]
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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After commit d6463f170cf0 ("mmc: sdhci: Remove redundant runtime PM calls"),
some of original sdhci_do_xx() function wrappers becomes meaningless,
so remove them.
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Bang-bang thermal governor uses trip point hysteresis to make decisions.
Hysteresis is a required property in the device tree for trip points, but it is
an optional thermal zone device operation. Hence, we need to check whether the
function pointer is valid or not.
If it is not available, we assume the hysteresis to be zero. Consequently, a
highly varying temperature will make the governor continuosly switch a cooling
device ON and OFF.
CC: Zhang Rui <rui.zhang@intel.com>
CC: Eduardo Valentin <edubezval@gmail.com>
CC: Peter Feuerer <peter@piie.net>
Signed-off-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:
====================
40GbE Intel Wired LAN Driver Updates 2016-05-14
This series contains updates to i40e and i40evf.
Kevin adds support to disable link on all ports and changes bits set
for telling firmware the PHY needs to be modified by the driver.
Anjali adds a feature to enable/disable all multicast for a trusted
VF. Added priv-flag knob to configure global true promiscuous
support.
Shannon adds the support code for calling the admin queue API call
aq_set_switch_config().
Mitch modifies the VF, to log a message if an untrusted VF attempts to
configure promiscuous mode, but lies to it and returns everything is ok
instead of returning an error. Corrects the logic for reporting the
receive packet hash. Fixed the adding of a broadcast filter for VFs,
since that all VSIs are configured to receive broadcasts as default,
so do not need to add a filter.
Catherine refactors the ethtool get_settings to report the possible
supported link modes from what we know about the current PHY type and
that with the firmware supported PHY types.
Jacob changes the driver to use WARN_ONCE in order to highlight the
issue, but do not display a warning every time when receive hang
message is received.
Akeem corrects receive ptype payload layer for non_tunneled IPv6, when
it should be layer 4 for UDP, instead of layer 3.
Dan Carpenter fixes an uninitialized variable bug.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use the weaker but more appropriate dma_rmb() to order the reading of
the completion ring.
Suggested-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The current code is more complicated than necessary and can only report
unsupported SFP+ module if it is plugged in after the device is up.
Rename bnxt_port_module_event() to bnxt_get_port_module_status(). We
already have the current module_status in the link_info structure, so
just check that and report any unsupported SFP+ module status. Delete
the unnecessary last_port_module_event. Call this function at the
end of bnxt_open to report unsupported module already plugged in.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The len value in the hwrm error message is wrong. Use the properly adjusted
value in the variable len.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The current code has 2 problems:
1. The maximum wait time is not long enough. It is about 60% of the
duration specified by the firmware. It is calling usleep_range(600, 800)
for every 1 msec we are supposed to wait.
2. The granularity of the delay is too coarse. Many simple firmware
commands finish in 25 usec or less.
We fix these 2 issues by multiplying the original 1 msec loop counter by
40 and calling usleep_range(25, 40) for each iteration.
There is also a second delay loop to wait for the last DMA word to
complete. This delay loop should be a very short 5 usec wait.
This change results in much faster bring-up/down time:
Before the patch:
time ip link set p4p1 up
real 0m0.120s
user 0m0.001s
sys 0m0.009s
After the patch:
time ip link set p4p1 up
real 0m0.030s
user 0m0.000s
sys 0m0.010s
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The chip supports 4K/8K/64K page sizes for the rings and we try to
match it to the CPU PAGE_SIZE. The current page size limits for the rings
are based on 4K/8K page size. If the page size is 64K, these limits are
too large. Reduce them appropriately.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add code to log a message during driver load indicating PCIe link
speed and width.
The log message will look like this:
bnxt_en 0000:86:00.0 eth0: PCIe: Speed 8.0GT/s Width x8
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add support to fetch the SFP EEPROM settings from the firmware
and display it via the ethtool -m command. We support SFP+ and QSFP
modules.
v2: Fixed a bug in bnxt_get_module_eeprom() found by Ben Hutchings.
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When there is only 1 MSI-X vector or in INTA mode, tx and rx pre-set
max channel parameters are shown incorrectly in ethtool -l. With only 1
vector, bnxt_get_max_rings() will return -ENOMEM. bnxt_get_channels
should check this return value, and set max_rx/max_tx to 0 if it is
non-zero.
Signed-off-by: Satish Baddipadige <sbaddipa@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The nf_conntrack_core.c fix in 'net' is not relevant in 'net-next'
because we no longer have a per-netns conntrack hash.
The ip_gre.c conflict as well as the iwlwifi ones were cases of
overlapping changes.
Conflicts:
drivers/net/wireless/intel/iwlwifi/mvm/tx.c
net/ipv4/ip_gre.c
net/netfilter/nf_conntrack_core.c
Signed-off-by: David S. Miller <davem@davemloft.net>
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Make it possible to transfer i2c message buffers via DMA.
Start/Stop/Sending_Slave_Address and some data is still handled using
the old state machine, it is sending the bulk of the data that is done
via DMA.
The first byte of a transmission and the last two bytes of reception are
sent/received using PIO. This is needed for the HW to have access to the
first byte before DMA transmit and to be able to set the STOP condition
for DMA reception.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
[wsa: fixed a checkpatch warning]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Pull networking fixes from David Miller:
1) Fix mvneta/bm dependencies, from Arnd Bergmann.
2) RX completion hw bug workaround in bnxt_en, from Michael Chan.
3) Kernel pointer leak in nf_conntrack, from Linus.
4) Hoplimit route attribute limits not enforced properly, from Paolo
Abeni.
5) qlcnic driver NULL deref fix from Dan Carpenter.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
arm64: bpf: jit JMP_JSET_{X,K}
net/route: enforce hoplimit max value
nf_conntrack: avoid kernel pointer value leak in slab name
drivers: net: xgene: fix register offset
drivers: net: xgene: fix statistics counters race condition
drivers: net: xgene: fix ununiform latency across queues
drivers: net: xgene: fix sharing of irqs
drivers: net: xgene: fix IPv4 forward crash
xen-netback: fix extra_info handling in xenvif_tx_err()
net: mvneta: bm: fix dependencies again
bnxt_en: Add workaround to detect bad opaque in rx completion (part 2)
bnxt_en: Add workaround to detect bad opaque in rx completion (part 1)
qlcnic: potential NULL dereference in qlcnic_83xx_get_minidump_template()
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The function setup_timer combines the initialization of a timer with
the initialization of the timer's function and data fields.
The multiline code for timer initialization is now replaced
with function setup_timer.
Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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The function setup_timer combines the initialization of a timer with
the initialization of the timer's function and data fields.
The multiline code for timer initialization is now replaced
with function setup_timer.
Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Add support for watchdogs (RWDT and SWDT) found on RCar Gen3 based SoCs
from Renesas.
Signed-off-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>
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The dev_err message is superfluous because the failure is already
printed by dev_kzalloc, so remove it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Tested and verified on Lanner LEC-3030 Industrial PC (with F81865)
Datasheet verified for
F71808, F71858, F71862, F71869, F71869A, F71882, F71889, F81865
Datasheet references:
F71808A:
http://www.electronicsdatasheets.com/download/534cf560e34e2406135f4658.pdf?format=pdf
F71858:
http://www.electronicsdatasheets.com/download/534cf55fe34e2406135f4635.pdf?format=pdf
F71862:
http://www.hardwaresecrets.com/datasheets/F71862_V027P.pdf
F71869:
http://www.clubedohardware.com.br/datasheets/366451_F71869.pdf
F71869A:
http://www.chipset-ic.com/datasheet/F71869AD.pdf
F71882:
http://www.digchip.com/datasheets/parts/datasheet/931/F71882-pdf.php
F71889:
http://pdf1.alldatasheet.com/datasheet-pdf/view/406312/FINTEK/F71889.html
F81865:
http://www.hardwaresecrets.com/datasheets/F81865_V028P.pdf
http://www.alldatasheet.com/datasheet-pdf/pdf/406317/FINTEK/F81865.html
Signed-off-by: Knud Poulsen <knpo@ieee.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Spelling/ typo
Signed-off-by: Knud Poulsen <knpo@ieee.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Adds watchdog enable support for Fintek F81865 Super-IO chip to
Fintek wdt driver (f71808e_wdt)
Tested and verified on Lanner LEC-3030 Industrial PC
Datasheet references:
http://www.hardwaresecrets.com/datasheets/F81865_V028P.pdf
http://www.alldatasheet.com/datasheet-pdf/pdf/406317/FINTEK/F81865.html
Signed-off-by: Knud Poulsen <knpo@ieee.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Commits 190aa4304de6 (Add AMD Mullins platform support) and
cca118fa2a0a94 (Add AMD Carrizo platform support) enabled the
driver on a lot more devices, but the following commit missed
a single location in the code when checking if the SB800 register
offsets should be used. This leads to the wrong register being
written which in turn causes ACPI to go haywire.
Fix this by introducing a helper function to check for the new
register layout and use this consistently.
https://bugzilla.kernel.org/show_bug.cgi?id=114201
https://bugzilla.redhat.com/show_bug.cgi?id=1329910
Fixes: bdecfcdb5461 (sp5100_tco: fix the device check for SB800
and later chipsets)
Cc: stable@vger.kernel.org (4.5+)
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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lockdep reports the following circular locking dependency.
======================================================
INFO: possible circular locking dependency detected ]
4.6.0-rc3-00191-gfabf418 #162 Not tainted
-------------------------------------------------------
systemd/1 is trying to acquire lock:
((&(&wd_data->work)->work)){+.+...}, at: [<80141650>] flush_work+0x0/0x280
but task is already holding lock:
(&wd_data->lock){+.+...}, at: [<804acfa8>] watchdog_release+0x18/0x190
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&wd_data->lock){+.+...}:
[<80662310>] mutex_lock_nested+0x64/0x4a8
[<804aca4c>] watchdog_ping_work+0x18/0x4c
[<80143128>] process_one_work+0x1ac/0x500
[<801434b4>] worker_thread+0x38/0x554
[<80149510>] kthread+0xf4/0x108
[<80107c10>] ret_from_fork+0x14/0x24
-> #0 ((&(&wd_data->work)->work)){+.+...}:
[<8017c4e8>] lock_acquire+0x70/0x90
[<8014169c>] flush_work+0x4c/0x280
[<801440f8>] __cancel_work_timer+0x9c/0x1e0
[<804acfcc>] watchdog_release+0x3c/0x190
[<8022c5e8>] __fput+0x80/0x1c8
[<80147b28>] task_work_run+0x94/0xc8
[<8010b998>] do_work_pending+0x8c/0xb4
[<80107ba8>] slow_work_pending+0xc/0x20
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&wd_data->lock);
lock((&(&wd_data->work)->work));
lock(&wd_data->lock);
lock((&(&wd_data->work)->work));
*** DEADLOCK ***
1 lock held by systemd/1:
stack backtrace:
CPU: 2 PID: 1 Comm: systemd Not tainted 4.6.0-rc3-00191-gfabf418 #162
Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
[<8010f5e4>] (unwind_backtrace) from [<8010c038>] (show_stack+0x10/0x14)
[<8010c038>] (show_stack) from [<8039d7fc>] (dump_stack+0xa8/0xd4)
[<8039d7fc>] (dump_stack) from [<80177ee0>] (print_circular_bug+0x214/0x334)
[<80177ee0>] (print_circular_bug) from [<80179230>] (check_prevs_add+0x4dc/0x8e8)
[<80179230>] (check_prevs_add) from [<8017b3d8>] (__lock_acquire+0xc6c/0x14ec)
[<8017b3d8>] (__lock_acquire) from [<8017c4e8>] (lock_acquire+0x70/0x90)
[<8017c4e8>] (lock_acquire) from [<8014169c>] (flush_work+0x4c/0x280)
[<8014169c>] (flush_work) from [<801440f8>] (__cancel_work_timer+0x9c/0x1e0)
[<801440f8>] (__cancel_work_timer) from [<804acfcc>] (watchdog_release+0x3c/0x190)
[<804acfcc>] (watchdog_release) from [<8022c5e8>] (__fput+0x80/0x1c8)
[<8022c5e8>] (__fput) from [<80147b28>] (task_work_run+0x94/0xc8)
[<80147b28>] (task_work_run) from [<8010b998>] (do_work_pending+0x8c/0xb4)
[<8010b998>] (do_work_pending) from [<80107ba8>] (slow_work_pending+0xc/0x20)
Turns out the call to cancel_delayed_work_sync() in watchdog_release()
is not necessary and can be dropped. If the worker is no longer necessary,
the subsequent call to watchdog_update_worker() will cancel it. If it is
already running, it won't do anything, since the worker function checks
if it needs to ping the watchdog or not.
Reported-by: Clemens Gruber <clemens.gruber@pqgruber.com>
Tested-by: Clemens Gruber <clemens.gruber@pqgruber.com>
Fixes: 11d7aba9ceb7 ("watchdog: imx2: Convert to use infrastructure triggered keepalives")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable <stable@vger.kernel.org>
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Let's have balanced round brackets.
Signed-off-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>
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git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next
Johan writes:
USB-serial updates for v4.7-rc1
These updates fixes a number of issues where resources were not properly
released on probe errors. Included is also a fix for hardware
flow-control disable for cp210x.
Support for Moxa UPort 11x0 is added to the ti_usb_3410_5052 driver, and
included are also some general code clean ups.
Signed-off-by: Johan Hovold <johan@kernel.org>
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ioatdma by default is in snoop mode. Relaxed ordering according to spec
does not do anything in snoop mode. However, it causes hang or significant
performance degrade when tested with NTB. Disabling in the driver due to
some BIOS do not configure it correctly.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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Currently the following DT description would result in dmac0 always
being tried first and dmac1 second if dmac0 was unavailable. This
results in heavier use of dmac0 then of dmac1. This patch adds an
approximate average distribution over the two nodes lessening the load
of anyone of them.
i2c6: i2c@e60b0000 {
...
dmas = <&dmac0 0x77>, <&dmac0 0x78>,
<&dmac1 0x77>, <&dmac1 0x78>;
dma-names = "tx", "rx", "tx", "rx";
...
};
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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The IS_ENABLED() macro checks if a Kconfig symbol has been enabled either
built-in or as a module, use that macro instead of open coding the same.
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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When the ccerr handler is called but the error registers indicate no error
events we need to command eDMA to re-evaluate the errors. Otherwise we can
receive flood of error interrupts.
Reported-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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The IMX6 watchdog supports assertion of a signal (WDOG_B) which
can be pinmux'd to an external pin. This is typically used for boards that
have PMIC's in control of the IMX6 power rails. In fact, failure to use
such an external reset on boards with external PMIC's can result in various
hangs due to the IMX6 not being fully reset [1] as well as the board failing
to reset because its PMIC has not been reset to provide adequate voltage for
the CPU when coming out of reset at 800Mhz.
This uses a new device-tree property 'fsl,ext-reset-output' to indicate the
board has such a reset and to cause the watchdog to be configured to assert
WDOG_B instead of an internal reset both on a watchdog timeout and in
system_restart.
[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2015-March/333689.html
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Iain Paton <ipaton0@gmail.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Akshay Bhat <akshay.bhat@timesys.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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When performing a suspend operation, the kernel brings all of the
non-boot CPUs offline, calling the hot plug notifiers with the flag,
CPU_TASKS_FROZEN, set in the action code. Similarly, during resume,
the CPUs are brought back online, but again the notifiers have the
FROZEN flag set.
While some very few drivers really need to treat suspend/resume
specially, this driver unintentionally ignores the notifications.
This patch changes the driver to disable the watchdog interrupt
whenever the CPU goes offline, and to enable it whenever the CPU goes
back online. As a result, the suspended state is no longer a special
case that leaves the watchdog active.
Signed-off-by: Richard Cochran <rcochran@linutronix.de>
Cc: linux-watchdog@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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We removed this initialization but it is required. Let's put it back.
Fixes: 895106a577c4 ('i40e: trivial fixes')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Signed-off-by: Bimmy Pujari <bimmy.pujari@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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