| Commit message (Collapse) | Author | Age | Files | Lines |
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Pull hwspinlock updates from Bjorn Andersson:
"Add missing of_node_put() in the Qualcomm driver and update
MAINTAINERS to make sure all hwspinlock related files have a
maintainer listed"
* tag 'hwlock-v4.8' of git://github.com/andersson/remoteproc:
MAINTAINERS: Update hwspinlock paths
hwspinlock: qcom_hwspinlock: add missing of_node_put after calling of_parse_phandle
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Include all files in drivers/hwspinlock and hwlock related dt bindings
in the hw spinlock section of MAINTAINERS.
Cc: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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of_parse_phandle
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-arm-msm@vger.kernel.org
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Pull remoteproc updates from Bjorn Andersson:
"Introduce remoteproc driver for controlling the modem/DSP Hexagon CPU
found in a multitude of Qualcomm platform.
Also cleans up a race condition/potential leak during registration of
remoteprocs and includes devicetree bindings in the MAINTAINERS entry"
* tag 'rproc-v4.8' of git://github.com/andersson/remoteproc:
remoteproc: qcom: hexagon: Clean up mpss validation
remoteproc: qcom: remove redundant dev_err call in q6v5_init_mem()
remoteproc: qcom: Driver for the self-authenticating Hexagon v5
dt-binding: remoteproc: Introduce Hexagon loader binding
remoteproc: Fix potential race condition in rproc_add
MAINTAINERS: Add file patterns for remoteproc device tree bindings
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As reported by Dan the unsigned "val" can't be negative. But instead
correcting the check for early errors here followed by a wait for the
validation result to show the error or success we can consolidate these
two parts of the validation process into the validation function.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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This driver supports bringing the Q6V5 out of reset, load and drive
the self-authenticating boot loader and use this to load the mdt and
subsequent bXX files.
Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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This document defines the binding for a component that loads firmware
and control the life cycle of a self-authenticating Qualcomm Hexagon
core.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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rproc_add adds the newly created remoteproc to a list for use by
rproc_get_by_phandle and then does some additional processing to finish
adding the remoteproc. This leaves a small window of time in which the
rproc is available in the list but not yet fully initialized, so if
another driver comes along and gets a handle to the rproc, it will be
invalid. Rearrange the code in rproc_add to make sure the rproc is added
to the list only after it has been successfuly initialized.
Fixes: fec47d863587 ("remoteproc: introduce rproc_get_by_phandle API")
Cc: stable@vger.kernel.org
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Submitters of device tree binding documentation may forget to CC
the subsystem maintainer if this is missing.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ohad Ben-Cohen <ohad@wizery.com>
Cc: linux-remoteproc@vger.kernel.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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This prevents a double-fetch from user space that can lead to to an
undersized allocation and heap overflow.
Fixes: 54dbc1517237 ("vfs: hoist the btrfs deduplication ioctl to the vfs")
Signed-off-by: Scott Bauer <sbauer@plzdonthack.me>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID updates from Jiri Kosina:
- new hid-alps driver for ALPS Touchpad-Stick device, from Masaki Ota
- much improved and generalized HID led handling, and merge of
specialized hid-thingm driver into this generic hid-led one, from
Heiner Kallweit
- i2c-hid power management improvements from Fu Zhonghui and Guohua
Zhong
- uhid initialization race fix from Roderick Colenbrander
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (21 commits)
HID: add usb device id for Apple Magic Keyboard
HID: hid-led: fix Delcom support on big endian systems
HID: hid-led: add support for Greynut Luxafor
HID: hid-led: add support for Delcom Visual Signal Indicator G2
HID: hid-led: remove report id from struct hidled_config
HID: alps: a few cleanups
HID: remove ThingM blink(1) driver
HID: hid-led: add support for ThingM blink(1)
HID: hid-led: add support for reading from LED devices
HID: hid-led: add support for devices with multiple independent LEDs
HID: i2c-hid: set power sleep before shutdown
HID: alps: match alps devices in core
HID: thingm: simplify debug output code
HID: alps: pass correct sizes to hid_hw_raw_request()
HID: alps: struct u1_dev *priv is internal to the driver
HID: add Alps I2C HID Touchpad-Stick support
HID: led: fix config
usb: misc: remove outdated USB LED driver
HID: migrate USB LED driver from usb misc to hid
HID: i2c_hid: enable i2c-hid devices to suspend/resume asynchronously
...
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Conflicts:
drivers/hid/hid-thingm.c
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Properly handle this __le16 value on big endian systems.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Add support for Greynut Luxafor. This device has two groups of three
independent LED's each.
Successfully tested with such a device.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Add support for the HID-compliant Delcom Visual Signal Indicator
generation 2 devices.
Successfully tested with part no 904000 from the family of these devices.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Delcom uses the report id to submit command information. To be able to
use the hidled framework also for Delcom devices we have to remove the
report id from struct hidled_config.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Now that support for ThingM blink(1) was merged into the hid-led driver
the dedicated driver for this device can be removed.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Add support for ThingM blink(1) and make the dedicated ThingM driver
obsolete.
Successfully tested with a blink(1) mk2.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Add support for reading data from LED devices.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Add generic support for devices with multiple independent LED's.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The driver port was done carefully not to depend on USB at all, in favor of
being generic HID driver instead. Therefore there is no need to explicitly
talk about USB only in the config.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The USB LED driver exposes a undocumented sysfs interface and doesn't
use the standard kernel LED subsystem. It supports three devices:
Delcom Visual Signal Indicator
The driver supports generation 1 of the device only which was
manufactured until 2008. Remove support for this device completely.
Riso Kagaku RGB LED + Dream Cheeky Webmail Notifier
These devices are HID compliant and are supported by a new USB LED
driver under drivers/hid utilizing the kernel LED subsystem.
So let's remove the old USB LED driver.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This patch migrates the USB LED driver to the HID subsystem.
Supported are Dream Cheeky Webmail Notifier / Friends Alert
and Riso Kagaku Webmail Notifier.
Benefits:
- Avoid using USB low-level calls and use the HID subsystem instead
(as this device provides a USB HID interface)
- Use standard LED subsystem instead of proprietary sysfs entries,
this allows e.g. to use the device with features like triggers
Successfully tested with a Dream Cheeky Webmail Notifier and a
Riso Kagaku Webmail Notifier compatible device.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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'for-4.8/uhid-offload-hid-device-add' and 'for-4.8/upstream' into for-linus
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Kernel printf format %*ph allows to print small buffers up to 64 bytes.
Make use of it to simplify the debug output code.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Many devices use userspace bluetooth stacks like BlueZ or Bluedroid in combination
with uhid. If any of these stacks is used with a HID device for which the driver
performs a HID request as part .probe (or technically another HID operation),
this results in a deadlock situation. The deadlock results in a 5 second timeout
for I/O operations in HID drivers, so isn't fatal, but none of the I/O operations
have a chance of succeeding.
The root cause for the problem is that uhid only allows for one request to be
processed at a time per uhid instance and locks out other operations. This means
that if a user space is creating a new HID device through 'UHID_CREATE', which
ultimately triggers '.probe' through the HID layer. Then any HID request e.g. a
read for calibration data would trigger a HID operation on uhid again, but it
won't go out to userspace, because it is still stuck in UHID_CREATE.
In addition bluetooth stacks are typically single threaded, so they wouldn't be
able to handle any requests while waiting on uhid.
Lucikly the UHID spec is somewhat flexible and allows for fixing the issue,
without breaking user space. The idea which the patch implements as discussed
with David Herrmann is to decouple adding of a hid device (which triggers .probe)
from UHID_CREATE. The work will kick off roughly once UHID_CREATE completed (or
else will wait a tiny bit of time in .probe for a lock). A HID driver has to call
HID to call 'hid_hw_start()' as part of .probe once it is ready for I/O, which
triggers UHID_START to user space. Any HID operations should function now within
.probe and won't deadlock because userspace is stuck on UHID_CREATE.
We verified this patch on Bluedroid with Android 6.0 and on desktop Linux with
BlueZ stacks. Prior to the patch they had the deadlock issue.
[jkosina@suse.cz: reword subject]
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Add i2c_hid_shutdown for i2c-hid driver to send suspend cmd & free
irq before device shutdown.
Some HW design (i.e. Umaro, a chromebook model) is that the power to
i2c hid device won't down after device shutdown. Also the i2c-hid driver
do not send suspend cmd to the hid i2c device and free its irq before
shutdown.So if We touch the touchscreen or some other i2c hid device,
the power consumtion will be go up even when the device is in shutdown
state.
Though the root cause maybe a HW issue. But it seems that it is a
good pratice to set power sleep for i2c-hid device before shutdown.
Signed-off-by: Guohua Zhong <ghzhong@yifangdigital.com>
Acked-By: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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i2c-hid devices' suspend/resume are usually time-consuming process.
For example, the touch controller(i2c-ATML1000:00) on ASUS T100 tablet
takes about 160ms for suspending and 120ms for resuming. This patch
enables i2c-hid devices to suspend/resume asynchronously. This will
take advantage of multicore and speed up system suspend/resume process.
Signed-off-by: Zhonghui Fu <zhonghui.fu@linux.intel.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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USB device
Vendor 05ac (Apple)
Device 0267 (Magic Keyboard)
This keyboard supports both Bluetooth and USB connections, this patch
only covers USB.
Thanks to Maxime Poulin <maxpoulin64@gmail.com>
Signed-off-by: Jean-Gabriel Gill-Couture <jeangab@jeangab.fr.nf>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Remove an unnecessary codes.
Change input_ivent() function to appropriate function.
Add the device ID of "HID_DEVICE_ID_ALPS_U1_DUAL".
[jkosina@suse.cz: removed unnecessary bitshifts of values passed
input_report_key() as spotted by Dmitry]
Signed-off-by: Masaki Ota <masaki.ota@jp.alps.com>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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All devices with ALPS_JP VID are handled by hid-alps driver, hence they require
an entry in hid_have_special_driver[].
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Calculating size of the report as sizeof(pointer) always passess the length
corresponding to the pointer type, not the underlying data report.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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... and therefore should be marked static.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Add support Alps I2C HID Touchpad and Stick device.
Signed-off-by: Masaki Ota <masaki.ota@jp.alps.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
fat: fix error message for bogus number of directory entries
fat: fix typo s/supeblock/superblock/
ASoC: max9877: Remove unused function declaration
dw2102: don't output spurious blank lines to the kernel log
init: fix Kconfig text
ARM: io: fix comment grammar
ocfs: fix ocfs2_xattr_user_get() argument name
scsi/qla2xxx: Remove erroneous unused macro qla82xx_get_temp_val1()
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"bogus directory-entries per block" was reported for what was instead
bogus number of directory entries. The message also mismatched the
argument passed to printk(), which was sbi->dir_entries.
Fix this by replacing the message with "bogus number of directory
entries". printk() argument was kept unchanged.
Signed-off-by: Zheng Lv <lv.zheng.2015@gmail.com>
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Signed-off-by: Zheng Lv <lv.zheng.2015@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Remove unused function declaration from header
Signed-off-by: Helen Koike <helen.koike@collabora.co.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The DW2102 DVB-S/S2 driver uses the info() logging function from
dvb-usb.h. This function already appends a newline to the provided log
message, causing the dmesg output from DW2102 to include blank lines.
Fix this by removing the newline in the calls to info().
Signed-off-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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[jkosina@suse.cz: folded another fix on top on the same line as spotted by
Randy Dunlap]
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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That macros uses logical "&&" instead of bit-wise "&" which is
apparently wrong. Since the macro is completely unused, simply
remove it, so that nobody can accidentially use it anymore.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull quota update from Jan Kara:
"time64 support for quota"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
quota: use time64_t internally
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The quota subsystem has two formats, the old v1 format using architecture
specific time_t values on the on-disk format, while the v2 format
(introduced in Linux 2.5.16 and 2.4.22) uses fixed 64-bit little-endian.
While there is no future for the v1 format beyond y2038, the v2 format
is almost there on 32-bit architectures, as both the user interface
and the on-disk format use 64-bit timestamps, just not the time_t
inbetween.
This changes the internal representation to use time64_t, which will
end up doing the right thing everywhere for v2 format.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jan Kara <jack@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random
Pull random driver fix from Ted Ts'o:
"Fix a boot failure on systems with non-contiguous NUMA id's"
* tag 'random_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
random: use for_each_online_node() to iterate over NUMA nodes
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This fixes a crash on s390 with fake NUMA enabled.
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Fixes: 1e7f583af67b ("random: make /dev/urandom scalable for silly userspace programs")
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs updates from Al Viro:
"Assorted cleanups and fixes.
Probably the most interesting part long-term is ->d_init() - that will
have a bunch of followups in (at least) ceph and lustre, but we'll
need to sort the barrier-related rules before it can get used for
really non-trivial stuff.
Another fun thing is the merge of ->d_iput() callers (dentry_iput()
and dentry_unlink_inode()) and a bunch of ->d_compare() ones (all
except the one in __d_lookup_lru())"
* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (26 commits)
fs/dcache.c: avoid soft-lockup in dput()
vfs: new d_init method
vfs: Update lookup_dcache() comment
bdev: get rid of ->bd_inodes
Remove last traces of ->sync_page
new helper: d_same_name()
dentry_cmp(): use lockless_dereference() instead of smp_read_barrier_depends()
vfs: clean up documentation
vfs: document ->d_real()
vfs: merge .d_select_inode() into .d_real()
unify dentry_iput() and dentry_unlink_inode()
binfmt_misc: ->s_root is not going anywhere
drop redundant ->owner initializations
ufs: get rid of redundant checks
orangefs: constify inode_operations
missed comment updates from ->direct_IO() prototype change
file_inode(f)->i_mapping is f->f_mapping
trim fsnotify hooks a bit
9p: new helper - v9fs_parent_fid()
debugfs: ->d_parent is never NULL or negative
...
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We triggered soft-lockup under stress test which
open/access/write/close one file concurrently on more than
five different CPUs:
WARN: soft lockup - CPU#0 stuck for 11s! [who:30631]
...
[<ffffffc0003986f8>] dput+0x100/0x298
[<ffffffc00038c2dc>] terminate_walk+0x4c/0x60
[<ffffffc00038f56c>] path_lookupat+0x5cc/0x7a8
[<ffffffc00038f780>] filename_lookup+0x38/0xf0
[<ffffffc000391180>] user_path_at_empty+0x78/0xd0
[<ffffffc0003911f4>] user_path_at+0x1c/0x28
[<ffffffc00037d4fc>] SyS_faccessat+0xb4/0x230
->d_lock trylock may failed many times because of concurrently
operations, and dput() may execute a long time.
Fix this by replacing cpu_relax() with cond_resched().
dput() used to be sleepable, so make it sleepable again
should be safe.
Cc: <stable@vger.kernel.org>
Signed-off-by: Wei Fang <fangwei1@huawei.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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