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Linus Walleij [Wed, 9 Nov 2016 15:09:58 +0000 (16:09 +0100)]
iio: gyro: st_gyro: inline per-sensor data
We have #defines for all the individual sensor registers and
value/mask pairs #defined at the top of the file and used at
exactly one spot.
This is usually good if the #defines give a meaning to the
opaque magic numbers.
However in this case, the semantic meaning is inherent in the
name of the C99-addressable fields, and that means duplication
of information, and only makes the code hard to maintain since
you every time have to add a new #define AND update the site
where it is to be used.
Get rid of the #defines and just open code the values into the
appropriate struct elements. Make sure to explicitly address
the .hz and .value fields in the st_sensor_odr_avl struct
so that the meaning of all values is clear.
This patch is purely syntactic should have no semantic effect.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Peter Rosin [Wed, 31 Aug 2016 08:02:40 +0000 (10:02 +0200)]
iio: imu: inv_mpu6050: inform the i2c mux core about how it is used
The i2c mux core can then take appropriate action depending on if it is
used for an actual i2c mux, or for an arbitrator or gate. In this case
it is used as a gate.
This will make devicetree bindings simpler when they are eventually
added.
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Colin Ian King [Wed, 9 Nov 2016 23:12:31 +0000 (23:12 +0000)]
iio: cros_ec_sensors_core: fix unsigned compared less than zero on status
status is a u8 hence the check if status is less than zero has no effect.
Fix this by replacing status with int ret so the less than zero compare
will correctly detect errors.
Issue found with static analysis with CoverityScan, CID
1375919
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Fixes:
974e6f02e27e ("iio: cros_ec_sensors_core: Add common functions for the ChromeOS EC Sensor Hub")
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Dan Carpenter [Thu, 10 Nov 2016 19:30:18 +0000 (22:30 +0300)]
iio:adc: ad7766: testing the wrong variable in probe
We should be testing "ret" here.
Fixes:
aa16c6bd0e09 ("iio:adc: Add support for AD7766/AD7767")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Arnd Bergmann [Tue, 8 Nov 2016 13:59:30 +0000 (14:59 +0100)]
iio: gyro: mpu3050: add I2C dependency
The new mpu3050 driver fails to build if I2C is disabled:
drivers/iio/built-in.o: In function `mpu3050_i2c_driver_exit':
mpu3050-i2c.c:(.exit.text+0x17f): undefined reference to `i2c_del_driver'
drivers/iio/built-in.o: In function `mpu3050_i2c_driver_init':
mpu3050-i2c.c:(.init.text+0x215): undefined reference to `i2c_register_driver'
This adds a Kconfig dependency to ensure we only build it when I2C
is available.
Fixes:
3904b28efb2c ("iio: gyro: Add driver for the MPU-3050 gyroscope")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Arnd Bergmann [Tue, 8 Nov 2016 13:59:29 +0000 (14:59 +0100)]
iio: gyro: mpu3050: remove duplicate initializer
The newly added mpu3050 driver has two initializations for the
module owner, which causes a warning for 'make W=1':
include/linux/export.h:37:21: error: initialized field overwritten [-Werror=override-init]
drivers/iio/gyro/mpu3050-core.c:749:19: note: in expansion of macro 'THIS_MODULE'
This removes one of the two.
Fixes:
3904b28efb2c ("iio: gyro: Add driver for the MPU-3050 gyroscope")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Arnd Bergmann [Tue, 8 Nov 2016 14:01:44 +0000 (15:01 +0100)]
staging: iio: tsl2583: fix unused function warning
Removing a call to the taos_chip_off() makes it unused when CONFIG_PM
is disabled:
drivers/staging/iio/light/tsl2583.c:438:12: error: ‘taos_chip_off’ defined but not used [-Werror=unused-function]
This removes all the #ifdef in this file, and marks the PM functions as
__maybe_unused instead, which is more reliable and gives us better
compile time coverage.
Fixes:
0561155f6fc5 ("staging: iio: tsl2583: don't shutdown chip when updating the lux table")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Arnd Bergmann [Tue, 8 Nov 2016 14:00:49 +0000 (15:00 +0100)]
staging: iio: ad9832: allocate data before using
The regulator changes assigned data to an uninitialized pointer:
drivers/staging/iio/frequency/ad9832.c: In function 'ad9832_probe':
drivers/staging/iio/frequency/ad9832.c:214:11: error: 'st' may be used uninitialized in this function [-Werror=maybe-uninitialized]
This moves the allocation of the 'st' structure before its first
use, as it should have been.
Fixes:
43a07e48af44 ("staging: iio: ad9832: clean-up regulator 'reg'")
Fixes:
a98461d79ba5 ("staging: iio: ad9832: add DVDD regulator")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Andrew Kanner [Thu, 3 Nov 2016 22:49:46 +0000 (01:49 +0300)]
staging: lustre: fixed shadowed variable in socklnd_cb.c
Removed redundant declaration of variable 'tx' in local scope
Fixed: sparse warning:
socklnd_cb.c:2476:41: warning: symbol 'tx' shadows an earlier one
socklnd_cb.c:2435:25: originally declared here
Signed-off-by: Andrew Kanner <andrew.kanner@gmail.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Nicholas Hanley [Sat, 5 Nov 2016 00:02:56 +0000 (20:02 -0400)]
staging: lustre: o2iblnd: replace space indentation with tabs
This patch fixes all CODE_INDENT checkpatch errors in o2iblnd.
Signed-off-by: Nicholas Hanley <nicholasjhanley@gmail.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Oleg Drokin [Thu, 3 Nov 2016 01:25:04 +0000 (21:25 -0400)]
staging/lustre: Get rid of LIBLUSTRE_CLIENT and its users
This define only made sense in a userspace library client, not in the kernel.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jinshan Xiong [Thu, 3 Nov 2016 01:25:03 +0000 (21:25 -0400)]
staging/lustre/llite: do not clear uptodate bit in page delete
Otherwise, if the race between page fault and truncate occurs, it
will cause the page fault routine to return an EIO error.
In filemap_fault() {
page_not_uptodate:
...
ClearPageError(page);
error = mapping->a_ops->readpage(file, page);
if (!error) {
wait_on_page_locked(page);
if (!PageUptodate(page))
error = -EIO;
}
...
}
However, I tend to think this is a defect in kernel implementation,
because it assumes PageUptodate shouldn't be cleared but file read
routine doesn't make the same assumption.
Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-on: http://review.whamcloud.com/22827
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8633
Reviewed-by: Li Dongyang <dongyang.li@anu.edu.au>
Reviewed-by: Bobi Jam <bobijam@hotmail.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bobi Jam [Thu, 3 Nov 2016 01:25:02 +0000 (21:25 -0400)]
staging/lustre/llite: update ras window correctly
When stride-RA hit case miss, we only reset normal sequential
read-ahead window, but not reset the stride IO to avoid the overhead
of re-detecting stride IO. While when the normal RA window is set
to not insect with the stride-RA window, when we try to increase
the stride-RA window length later, the presumption does not hold.
This patch resets the stride IO as well in this case.
Signed-off-by: Bobi Jam <bobijam.xu@intel.com>
Reviewed-on: http://review.whamcloud.com/23032
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8683
Reviewed-by: wangdi <di.wang@intel.com>
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Amir Shehata [Thu, 3 Nov 2016 01:25:01 +0000 (21:25 -0400)]
staging/lustre/ptlrpc: Correctly calculate hrp->hrp_nthrs
cpu_pattern can specify exactly 1 cpu in a partition:
"0[0]". That means CPT0 will have CPU 0. CPU 0 can have
hyperthreading enabled. This combination would result in
weight = cfs_cpu_ht_nsiblings(0);
hrp->hrp_nthrs = cfs_cpt_weight(ptlrpc_hr.hr_cpt_table, i);
hrp->hrp_nthrs /= weight;
evaluating to 0. Where
cfs_cpt_weight(ptlrpc_hr.hr_cpt_table, i) == 1
weight == 2
Therefore, if hrp_nthrs becomes zero, just set it to 1.
Signed-off-by: Amir Shehata <amir.shehata@intel.com>
Reviewed-on: http://review.whamcloud.com/19106
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8492
Reviewed-by: Liang Zhen <liang.zhen@intel.com>
Reviewed-by: Doug Oucharek <doug.s.oucharek@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bobi Jam [Thu, 3 Nov 2016 01:25:00 +0000 (21:25 -0400)]
staging/lustre/llite: protect from accessing NULL lli_clob
Need to check file's lli_clob object before calling
lov_read_and_clear_async_rc().
Signed-off-by: Bobi Jam <bobijam.xu@intel.com>
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Reviewed-on: http://review.whamcloud.com/23031
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8682
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Patrick Farrell [Thu, 3 Nov 2016 01:24:59 +0000 (21:24 -0400)]
staging/lustre/ptlrpc: Suppress error for flock requests
-EAGAIN is a normal return when requesting POSIX flocks.
We can't recognize exactly that case here, but it's the
only case that should result in -EAGAIN on LDLM_ENQUEUE, so
don't print to console in that case.
Signed-off-by: Patrick Farrell <paf@cray.com>
Reviewed-on: http://review.whamcloud.com/22856
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8658
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Hongchao Zhang [Thu, 3 Nov 2016 01:24:58 +0000 (21:24 -0400)]
staging/lustre/ldlm: engage ELC for all ldlm enqueue req
If there is no request passed into ldlm_cli_enqueue, the enqueue
request will not engage ELC to drop unneeded locks. currently,
this kind of request is mainly related to EXTENT locks enqueue
requests (except for glimpse EXTENT lock for it has an intent).
Signed-off-by: Hongchao Zhang <hongchao.zhang@intel.com>
Reviewed-on: http://review.whamcloud.com/21739
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8209
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Vitaly Fertman <vitaly.fertman@seagate.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Oleg Drokin [Thu, 3 Nov 2016 01:24:57 +0000 (21:24 -0400)]
staging/lustre/ldlm: Reinstate ldlm_enqueue_pack()
The function becomes used again with the next patch, so bring it back
from dead, only this time make it static.
Reverts:
bf2a033360f7 ("staging/lustre/ldlm: Remove unused ldlm_enqueue_pack()")
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andrew Perepechko [Thu, 3 Nov 2016 01:24:56 +0000 (21:24 -0400)]
staging/lustre/llite: drop_caches hangs in cl_inode_fini()
This patch releases cl_pages on error in ll_write_begin()
to avoid memory and object reference leaks. Also, it
reuses per-cpu lu_env in ll_invalidatepage() in the same
way as done in ll_releasepage().
Signed-off-by: Andrew Perepechko <andrew.perepechko@seagate.com>
Seagate-bug-id: MRP-3504
Reviewed-on: http://review.whamcloud.com/22745
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8509
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: Bobi Jam <bobijam@hotmail.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jinshan Xiong [Thu, 3 Nov 2016 01:24:55 +0000 (21:24 -0400)]
staging/lustre: Get rid of cl_env hash table
cl_env hash table is under heavy contention when there are lots of
processes doing IO at the same time;
reduce lock contention by replacing cl_env cache with percpu array;
remove cl_env_nested_get() and cl_env_nested_put();
remove cl_env_reenter() and cl_env_reexit();
Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-on: http://review.whamcloud.com/20254
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4257
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Bobi Jam <bobijam@hotmail.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Niu Yawei [Thu, 3 Nov 2016 01:24:54 +0000 (21:24 -0400)]
staging/lustre/llite: clear inode timestamps after losing UPDATE lock
Otherwise, those leftovers would interfere with new timestamps
especially when the timestamps are set back in time on the other
clients.
Signed-off-by: Jinshan Xiong <jinshan.xiong@intel.com>
Signed-off-by: Niu Yawei <yawei.niu@intel.com>
Reviewed-on: http://review.whamcloud.com/22623
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8446
Reviewed-by: Bobi Jam <bobijam@hotmail.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andriy Skulysh [Thu, 3 Nov 2016 01:24:53 +0000 (21:24 -0400)]
staging/lustre: conflicting PW & PR extent locks on a client
PW lock isn't replayed once a lock is marked
LDLM_FL_CANCELING and glimpse lock doesn't wait for
conflicting locks on the client. So the server will
grant a PR lock in response to the glimpse lock request,
which conflicts with the PW lock in LDLM_FL_CANCELING
state on the client.
Lock in LDLM_FL_CANCELING state may still have pending IO,
so it should be replayed until LDLM_FL_BL_DONE is set to
avoid granted conflicting lock by a server.
Seagate-bug-id: MRP-3311
Signed-off-by: Andriy Skulysh <andriy.skulysh@seagate.com>
Reviewed-on: http://review.whamcloud.com/20345
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8175
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Hongchao Zhang [Thu, 3 Nov 2016 01:24:52 +0000 (21:24 -0400)]
staging/lustre/ldlm: fix export reference problem
1, in client_import_del_conn, the export returned from
class_conn2export is not released after using it.
2, in ptlrpc_connect_interpret, the export is not released
if the connect_flags isn't compatible.
Signed-off-by: Hongchao Zhang <hongchao.zhang@intel.com>
Reviewed-on: http://review.whamcloud.com/22031
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8500
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Bobi Jam <bobijam@hotmail.com>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Oleg Drokin [Thu, 3 Nov 2016 01:24:51 +0000 (21:24 -0400)]
staging/lustre/ldlm: Drop unused blocking_refs flock field
blocking_refs is only used on the server, so drop it on the client.
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sergio Paracuellos [Wed, 2 Nov 2016 18:47:49 +0000 (19:47 +0100)]
staging: wlan-ng: remove unnecessary blank line
Blank lines aren't necessary after an open brace '{'.
Clean them in p80211req.c source file to comply with
the standard kernel coding style.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sergio Paracuellos [Wed, 2 Nov 2016 18:47:48 +0000 (19:47 +0100)]
staging: wlan-ng: remove unnecessary parentheses
Avoid no necessary parentheses to comply with the standard kernel
coding style.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sergio Paracuellos [Wed, 2 Nov 2016 18:47:47 +0000 (19:47 +0100)]
staging: wlan-ng: change comparison to NULL to preferred style.
Comparison to NULL could be written in preferred form.
Change it to comply with the standard kernel coding style.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sergio Paracuellos [Wed, 2 Nov 2016 18:47:46 +0000 (19:47 +0100)]
staging: wlan-ng: remove two unnecessary blank lines
After open brace or before close brace blank lines are not really
necessary. Remove them.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sergio Paracuellos [Wed, 2 Nov 2016 18:47:45 +0000 (19:47 +0100)]
staging: wlan-ng: add spaces around or operator : HOSTWEP_DEFAULTKEY_MASK
Add spaces around or operator to comply with the standard
kernel coding style.
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Maninder Singh [Fri, 4 Nov 2016 07:58:31 +0000 (13:28 +0530)]
staging: st-cec: add parentheses around complex macros
This patch fixes the following checkpatch.pl error:
ERROR: Macros with complex values should be enclosed in parentheses
Signed-off-by: Maninder Singh <maninder.s2@samsung.com>
Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Nick Rosbrook [Wed, 2 Nov 2016 01:15:07 +0000 (21:15 -0400)]
staging: vt6655: card.c: Fixing multiple assignments
Running checkpath on card.c shows two locations where
multiple assignments are used.
This patch modifies the assignments into single assignments.
Signed-off-by: Nick Rosbrook <nrosbrook@mail.smcvt.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Elise Lennion [Tue, 1 Nov 2016 01:28:46 +0000 (23:28 -0200)]
staging: sm750fb: Replace pr_*() with dev_*().
dev_*() functions print identifying information about the struct device
and should be used instead of pr_*() whenever possible.
Signed-off-by: Elise Lennion <elise.lennion@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Nadim Almas [Mon, 31 Oct 2016 08:20:11 +0000 (13:50 +0530)]
Staging:emxx_udc:emxx_udc: Compression of lines for immediate return
This patch compresses two lines into a single line
if immediate return statement is found. Remove variable data as
it is no longer needed.
It is done using script Coccinelle. And coccinelle uses the following
semantic patch for this compression function
@@
local idexpression ret;
expression e;
@@
-ret =
+return
e;
-return ret;
Signed-off-by: Nadim Almas <nadim.902@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Souptick Joarder [Mon, 31 Oct 2016 11:26:05 +0000 (16:56 +0530)]
staging : rtl8712: Free memory when kmalloc fails
There are few functions where we need to free previously allocated
memory when kmalloc fails. Else it may lead to memory leakage. In
_init_cmd_priv() and _r8712_init_xmit_priv(), in few places we are
not freeing previously allocated memory when kmalloc fails.
Signed-off-by: Souptick joarder <jrdr.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wei Yongjun [Sat, 29 Oct 2016 16:17:55 +0000 (16:17 +0000)]
s5p-cec: remove unused including <linux/version.h>
Remove including <linux/version.h> that don't need it.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ted Chen [Sun, 30 Oct 2016 15:29:20 +0000 (23:29 +0800)]
staging: comedi: ni_tio: fix warnings of uninitialized variables
Fix the following warnings by initializing these variables
to zero and add error check to return early when the check
returns an error.
drivers/staging/comedi/drivers/ni_tio.c: In function ‘ni_tio_set_sync_mode’:
drivers/staging/comedi/drivers/ni_tio.c:492:28: warning: ‘ps’ may be used uninitialized in this function [-Wuninitialized]
drivers/staging/comedi/drivers/ni_tio.c: In function ‘ni_tio_insn_config’:
drivers/staging/comedi/drivers/ni_tio.c:820:2: warning: ‘temp64’ may be used uninitialized in this function [-Wuninitialized]
drivers/staging/comedi/drivers/ni_tio.c:811:6: note: ‘temp64’ was declared her
Signed-off-by: Ted Chen <tedc.37zngo@gmail.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Mon, 7 Nov 2016 10:18:42 +0000 (11:18 +0100)]
staging: vc04_services: fix up some printk warnings
Some more printk warnings snuck in recently, no one seems to be building
this on 64bit machines...
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Lee Jones <lee@kernel.org>
Cc: Eric Anholt <eric@anholt.net>
Cc: Michael Zoran <mzoran@crowfest.net>
Cc: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stefan Wahren [Mon, 31 Oct 2016 14:39:33 +0000 (14:39 +0000)]
staging: vchiq_arm: change order during module probe
The current order during module probe is prone to race conditions:
* debugfs entries, sysfs entries, platform code
So fix this by swapping the steps debugfs entries and platform code.
As a benefit this saves us a clean up step in the error path.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stefan Wahren [Mon, 31 Oct 2016 14:39:32 +0000 (14:39 +0000)]
staging: vchiq_arm: remove debugfs entries on module unload
This removes the debugfs entries on module unload and fix one
of the many kernel oops after loading the module again.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stefan Wahren [Mon, 31 Oct 2016 14:39:31 +0000 (14:39 +0000)]
staging: vchiq_arm: handle error case of get_user_pages
It's possible that get_user_pages() could fail. So evaluate its
return code and handle this error case properly.
This issue has been found by Cppcheck.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stefan Wahren [Mon, 31 Oct 2016 14:39:30 +0000 (14:39 +0000)]
staging: vchiq_arm: remove hardcoded buffer length
We better use sizeof instead of hardcoding buffer length multiple
times. This make it easier to increase the buffer in the future.
In order to keep below 80 chars limit make the variable name shorter.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stefan Wahren [Mon, 31 Oct 2016 14:39:29 +0000 (14:39 +0000)]
staging: vchiq_arm: add missing of_node_put
After device_node usage the refcount must be decremented with
of_node_put().
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stefan Wahren [Mon, 31 Oct 2016 14:39:28 +0000 (14:39 +0000)]
staging: vchiq_core: fix format strings in vchiq_dump_service_state
The member localport and remoteport are unsigned. So fix the format
string accordingly.
The issue has been found by Cppcheck.
Signed-off-by: Stefam Wahren <stefan.wahren@i2se.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stefan Wahren [Mon, 31 Oct 2016 14:39:27 +0000 (14:39 +0000)]
staging: vchiq_core: fix service dereference in unlock_service
The service state is dereferenced before BUG_ON and outside of the
spin lock. So in order to avoid possible NULL pointer dereferences or
races move the whole scope at a safer place.
This issue has been found by Cppcheck.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Michael Zoran [Tue, 1 Nov 2016 15:21:14 +0000 (08:21 -0700)]
staging: vc04_services: parse_rx_slots() - Fix compiler warning
vc04_services contains a debug logging mechanism. The log is
maintained in a shared memory area between the kernel and the
firmware. Changing the sizes of the data in this area would
require a firmware change which is distributed independently
from the kernel binary.
One of the items logged is the address of received messages.
This address is a pointer, but the debugging slot used to store
the information is a 32 bit integer.
Luckily, this value is never interpreted by anything other
then debug tools and it is expected that a human debugging
the kernel interpret it.
This change adds a cast to long before the original cast
to int to silence the warning.
Signed-off-by: Michael Zoran <mzoran@crowfest.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Michael Zoran [Sun, 30 Oct 2016 12:55:07 +0000 (05:55 -0700)]
staging: vc04_services: remove vchiq_copy_from_user
The vchiq_copy_from_user function is not portable
and is consider "bad practice." Replace this function
with a callback based mechanism that is passed downward
on the stack. When it is actually time to copy the data,
the callback is called to copy the data into the message.
This callback is provided internally for userland calls
through ioctls on the device.
NOTE: Internal clients will need to be modified to work
with the new internal API.
Test Run:
vchiq_test -p 1
vchiq_test -f 10
Both tests pass.
Internal API Changes:
Change vchi_msg_queue to:
int32_t
vchi_msg_queue(VCHI_SERVICE_HANDLE_T handle,
ssize_t (*copy_callback)(void *context, void *dest,
size_t offset, size_t maxsize),
void *context,
uint32_t data_size );
Remove:
vchi_msg_queuev_ex
vchi_msg_queuev
These functions were not implemented anyway so no need to fix them. It's
easier to just remove them.
Signed-off-by: Michael Zoran <mzoran@crowfest.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Michael Zoran [Mon, 31 Oct 2016 21:02:03 +0000 (14:02 -0700)]
staging: vc04_services: setup DMA and coherent mask
VCHI messages between the CPU and firmware use 32-bit
bus addresses. Explicitly set the DMA mask and coherent
on all platforms.
Signed-off-by: Michael Zoran <mzoran@crowfest.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Michael Zoran [Fri, 28 Oct 2016 17:58:13 +0000 (10:58 -0700)]
staging: vc04_services: call sg_init_table to init scatterlist
Call the sg_init_table function to correctly initialze
the DMA scatterlist. This function is required to completely
initialize the list and is mandatory if DMA debugging is
enabled in the build configuration.
One of the purposes of sg_init_table is to set
the magic "cookie" on each list element and ensure
the chain end is marked.
Signed-off-by: Michael Zoran <mzoran@crowfest.net>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Anton Leshchenko [Tue, 1 Nov 2016 22:27:11 +0000 (01:27 +0300)]
Staging: vme: Fix parenthesis alignment.
Align broken line for code readability.
Signed-off-by: Anton Leshchenko <antonl1911@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Anton Leshchenko [Tue, 1 Nov 2016 22:27:10 +0000 (01:27 +0300)]
Staging: vme: Add required identifier names.
Add identifier names for function definition arguments.
Signed-off-by: Anton Leshchenko <antonl1911@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Anton Leshchenko [Tue, 1 Nov 2016 22:27:09 +0000 (01:27 +0300)]
Staging: vme: Use BIT macro for bit field definitions.
Instead of using shift operation use BIT macro for bit field
definitions.
Signed-off-by: Anton Leshchenko <antonl1911@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Anton Leshchenko [Tue, 1 Nov 2016 22:27:08 +0000 (01:27 +0300)]
Staging: vme: Remove excessive blank lines.
To make code more readable, remove excessive blank lines.
Signed-off-by: Anton Leshchenko <antonl1911@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Binder [Thu, 3 Nov 2016 15:44:29 +0000 (11:44 -0400)]
staging: unisys: visorinput: Add default conditions to case statements
This commit adds a default condition to those case statements that do not
already have one. This is done to provide both a logical covering of all
conditions, as well as to maintain uniformity with the rest of the Unisys
driver set.
Signed-off-by: David Binder <david.binder@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Binder [Thu, 3 Nov 2016 15:44:28 +0000 (11:44 -0400)]
staging: unisys: visorbus: Adjust formatting of variable assignment
Adjusts the formatting of a variable assignment to use fewer line breaks,
making it follow the convention used elsewhere in the s-Par driver set.
Signed-off-by: David Binder <david.binder@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Kershner [Thu, 3 Nov 2016 15:44:27 +0000 (11:44 -0400)]
staging: unisys: visorbus: in my_device_destroy don't call device_epilog
The function my_device_destroy should call chipset_device_destroy
directly instead of calling device_epilog. Since this was the last
function to use device_epilog that function was removed as well.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Kershner [Thu, 3 Nov 2016 15:44:26 +0000 (11:44 -0400)]
staging: unisys: visorbus: my_device_changestate: no longer call device_epilog
Function my_device_changestate should call chipset_device_changestate
directly instead of calling device_epilog.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Kershner [Thu, 3 Nov 2016 15:44:25 +0000 (11:44 -0400)]
staging: unisys: visorbus: my_device_changestate: add error response
The function my_device_changestate was not sending a response if there
was an error with the CONTROLVM message.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Kershner [Thu, 3 Nov 2016 15:44:24 +0000 (11:44 -0400)]
staging: unisys: visorbus: my_device_create does not call device_epilog
Don't have my_device_create call device_epilog, have it call
chipset_device_create directly instead.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Kershner [Thu, 3 Nov 2016 15:44:23 +0000 (11:44 -0400)]
staging: unisys: visorbus: remove bus_epilog
Remove the function bus_epilog since no one is calling it.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Kershner [Thu, 3 Nov 2016 15:44:22 +0000 (11:44 -0400)]
staging: unisys: visorbus: bus_create fix error handling
Add error handling to bus_create function.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Kershner [Thu, 3 Nov 2016 15:44:21 +0000 (11:44 -0400)]
staging: unisys: visorbus: bus_destroy add error handling
Do proper error handling and return error codes instead of just ignoring
them.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Kershner [Thu, 3 Nov 2016 15:44:20 +0000 (11:44 -0400)]
staging: unisys: visorbus: bus_destroy do not call bus_epilog
Have bus_destroy call chipset_bus_destroy directly instead of going
through bus_epilog.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Kershner [Thu, 3 Nov 2016 15:44:19 +0000 (11:44 -0400)]
staging: unisys: visorbus: bus_create no longer calls bus_epilog
Have bus_create call chipset_bus_create directly instead of going
through the function bus_epilog.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
David Kershner [Thu, 3 Nov 2016 15:44:18 +0000 (11:44 -0400)]
staging: unisys: visorbus: fix double response
This patch addresses the problem that we were sending double responses
back to the s-Par Firmware when processing CONTROLVM Messages. Every
message responds individually and the epilog functions would send a
response as well.
Since a message could delay the response, it was decided to remove the
extra response from the epilog function.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sameer Wadgaonkar [Thu, 3 Nov 2016 15:44:17 +0000 (11:44 -0400)]
staging: unisys: visorbus: remove unused initializations
Removed intializations from visorchipset_open(), visorchipset_init()
and moved the memset in initialize_controlvm_payload_info() down in
case of early returns from the function.
Signed-off-by: Sameer Wadgaonkar <sameer.wadgaonkar@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tim Sell [Thu, 3 Nov 2016 15:44:16 +0000 (11:44 -0400)]
staging: unisys: visorbus: convert client_bus_info sysfs to debugfs
Previously, the sysfs entry (assuming traditional sysfs mountpoint):
/sys/bus/visorbus/devices/visorbus<n>/client_bus_info
violated kernel conventions by printing more than one item. This along
with the fact that the data emitted was diagnostic data (intended to
shadow the client driver info provided via s-Par livedumps) made it a
logical candidate for debugfs. So this patch moves this sysfs entry to
debugfs as (assuming traditional debugfs mountpoint):
/sys/kernel/debug/visorbus/visorbus<n>/client_bus_info
Data for this debugfs is emitted using the preferred seq_file interface,
which allowed a vastly-simplified version of vbuschannel_print_devinfo()
to format the individual output components.
Functionality was verified as follows:
[root@sparguest visorbus]# mount | grep debug
debugfs on /sys/kernel/debug type debugfs (rw)
[root@sparguest visorbus]# pwd
/sys/kernel/debug/visorbus
[root@sparguest visorbus]# l visorbus1/
total 0
drwxr-xr-x 2 root root 0 Sep 28 16:36 .
drwxr-xr-x 4 root root 0 Sep 28 16:36 ..
-r--r----- 1 root root 0 Sep 28 16:36 client_bus_info
[root@sparguest visorbus]# l visorbus2
total 0
drwxr-xr-x 2 root root 0 Sep 28 16:36 .
drwxr-xr-x 4 root root 0 Sep 28 16:36 ..
-r--r----- 1 root root 0 Sep 28 16:36 client_bus_info
[root@sparguest visorbus]# cat visorbus1/client_bus_info
Client device / client driver info for s-Par Console partition (vbus #1):
chipset visorchipset kernel ver. 4.8.0-rc6-ARCH+
clientbus visorbus kernel ver. 4.8.0-rc6-ARCH+
[2]keyboard visorinput kernel ver. 4.8.0-rc6-ARCH+
[3]mouse visorinput kernel ver. 4.8.0-rc6-ARCH+
[root@sparguest visorbus]# cat visorbus2/client_bus_info
Client device / client driver info for s-Par IOVM partition (vbus #2):
chipset visorchipset kernel ver. 4.8.0-rc6-ARCH+
clientbus visorbus kernel ver. 4.8.0-rc6-ARCH+
[0]ultravnic visornic kernel ver. 4.8.0-rc6-ARCH+
[1]ultravnic visornic kernel ver. 4.8.0-rc6-ARCH+
[2]sparvhba visorhba kernel ver. 4.8.0-rc6-ARCH+
Signed-off-by: Tim Sell <Timothy.Sell@unisys.com>
Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tim Sell [Thu, 3 Nov 2016 15:44:15 +0000 (11:44 -0400)]
staging: unisys: visorbus: move DEVICE_ATTR_RO defs as-per conventions
The kernel convention is for DEVICE_ATTR_RO(<attr>) definitions to occur
immediately after the functions that implement the attribute behaviors.
DEVICE_ATTR_RO definitions in visorbus_main.c have been moved to comply
with this convention.
Signed-off-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Shiva Kerdel [Sun, 6 Nov 2016 14:09:18 +0000 (15:09 +0100)]
Staging: speakup: Remove unnecessary space after cast
The affected files have been modified to remove redundant spaces after
casts to solve checkpatch.pl checks.
Signed-off-by: Shiva Kerdel <shiva@exdev.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Mon, 7 Nov 2016 08:14:03 +0000 (09:14 +0100)]
Merge tag 'iio-for-4.10b' of git://git./linux/kernel/git/jic23/iio into staging-testing
Jonathan writes:
Second round of new device support, cleanups and fixes for IIO in the 4.10 cycle
This includes two branch merges for elements that may also go via MFD.
New device support
* cros_ec
- new driver to support these Chrome OS contiguous sensors which are behind
the Chrome OS embedded controller. Requires a few minor MFD and chrome
platform changes. One follow up fix deals with some dependency issues in
Kconfig.
* mpu-3050
- new driver and device tree bindings for this venerable device.
* st_accel
- support for the lng2dm an
Driver features
* ad7192
- Add DVdd regulator handling
* ad9832
- Add DVDD regulator handling
* at91
- Suspend and resume support
* si7020
- Device tree bindings
* ti-am335x
- DMA support - uses dma to accelerate short bursts of read back rather
than full blown DMA buffer support. Greatly improved performance.
Includes an MFD addition to give access to the address needed for DMA.
* tsl2583
- Device tree bindings
Cleanups and minor fixes
* ad7192
- Fix regulator naming to match datasheet
- Handle regulator errors correctly (so as to not break deferred probing)
- Rename reg variable to reflect which regulator it is
* ad5933
- Fix regulator naming to match datasheet
- Handle regulator errors correctly (so as to not break deferred probing)
* ad7746
- Fix a missing return value (fallout from previous patch set)
* ad7780
- Fix regulator naming to match datasheet
- Handle regulator errors correctly (so as to not break deferred probing)
* ad9832
- Fix regulator naming to match datasheet
- Handle regulator errors correctly (so as to not break deferred probing)
- Rename reg regulator to reflect which one it is
* ad9834
- Fix regulator naming to match datasheet
- Handle regulator errors correctly (so as to not break deferred probing)
* hts221
- Remove a duplicated include
* maxim thermocouple
- Handle a wrong storage side in read function. Prevent any problems that
might be introduced by additions to this driver in future.
* tsl2583 - big set from Brian Masney to drive this towards a staging
graduation.
- Convert to iio_chan_spec and read_raw / write_raw (in a couple of steps)
- Improved error handling in various functions
- Drop redundant power_state custom sysfs attribute.
- Use IIO_*_ATTR* macros for remaining attributes.
- Return an error code to userspace on invalid parameters being writen to
sysfs files.
- Add locking to various attribute accesses to remove possible races.
- Add defines for various magic numbers.
- Use smbus_read_byte_data instead of a write_byte followed by read_byte.
- Query only relevant registers in probe.
- Tidy up ordering of code comments.
- Remove a pointless power off sequence in taos_chip_on.
- Don't bother shutting down the chip when updating the lux table.
The table is held entirely in the driver and doesn't effect the chip at all.
- Drop a redundant i2c call in taos_als_calibrate where the same register
is read twice in a row.
Brian Masney [Thu, 3 Nov 2016 12:56:17 +0000 (08:56 -0400)]
staging: iio: tsl2583: remove redudant i2c call in taos_als_calibrate()
taos_als_calibrate() queries the control register to determine if the
unit is powered on and has the ADC enabled. It then queries the same
register a second time to determine if the ADC reading is valid. This
patch removes the redundant i2c_smbus_read_byte_data() call.
Verified that the driver still functions correctly using a TSL2581
hooked up to a Raspberry Pi 2.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Brian Masney [Thu, 3 Nov 2016 12:56:16 +0000 (08:56 -0400)]
staging: iio: tsl2583: don't shutdown chip when updating the lux table
in_illuminance_lux_table_store() shuts down the chip, updates the
contents of the lux table, and then turns the chip back on. The values
in lux table are not used by the chip and are only used internally by
the driver. It is not necessary to change the power state on the chip.
This patch removes the calls to taos_chip_off() and taos_chip_on()
in in_illuminance_lux_table_store().
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Brian Masney [Thu, 3 Nov 2016 12:56:15 +0000 (08:56 -0400)]
staging: iio: tsl2583: remove redundant power off sequence in taos_chip_on()
taos_chip_on() explicitly turns the sensor power on and then writes the
8 registers that are stored in taos_config. The first register in
taos_config is the CONTROL register and the configuration is set to
turn the power off. The existing state sequence in taos_chip_on() is:
- Turn device power on
- Turn device power off (via taos_config)
- Configure other 7 registers (via taos_config)
- Turn device power on, enable ADC
This patch changes the code so that the device is not powered off via
taos_config.
Verified that the driver still functions correctly using a TSL2581
hooked up to a Raspberry Pi 2.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Brian Masney [Thu, 3 Nov 2016 12:56:14 +0000 (08:56 -0400)]
staging: iio: tsl2583: fixed ordering of comments
in taos_defaults()
The comments in taos_defaults() appear after the line of code
that they apply to. This patch moves the comments so that they appear
before the code. Some of the comments were updated to be more
informative.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Brian Masney [Thu, 3 Nov 2016 12:56:13 +0000 (08:56 -0400)]
staging: iio: tsl2583: removed unused code from device probing
taos_probe() queries the all of the sensor's registers and loads all of
the values into a buffer stored on the stack. Only the chip ID register
was actually used. Change the probe function to just query the chip ID
register on the device.
Verified that the driver still functions correctly using a TSL2581
hooked up to a Raspberry Pi 2.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Brian Masney [Thu, 3 Nov 2016 12:56:12 +0000 (08:56 -0400)]
staging: iio: tsl2583: i2c_smbus_write_byte() / i2c_smbus_read_byte() migration
There were several places where the driver would first call
i2c_smbus_write_byte() to select the register on the device, and then
call i2c_smbus_read_byte() to get the contents of that register. The
code would look roughly like:
/* Select register */
i2c_smbus_write_byte(client, REGISTER);
/* Read the the last register that was written to */
int data = i2c_smbus_read_byte(client);
Rewrite this to use i2c_smbus_read_byte_data() to combine the two
calls into one:
int data = i2c_smbus_read_byte_data(chip->client, REGISTER);
Verified that the driver still functions correctly using a TSL2581
hooked up to a Raspberry Pi 2.
This fixes the following warnings that were found by the
kbuild test robot that were introduced by commit
8ba355cce3c6 ("staging:
iio: tsl2583: check for error code from i2c_smbus_read_byte()").
drivers/staging/iio/light/tsl2583.c:365:5-12: WARNING: Unsigned
expression compared with zero: reg_val < 0
drivers/staging/iio/light/tsl2583.c:388:5-12: WARNING: Unsigned
expression compared with zero: reg_val < 0
This also removes the need for the taos_i2c_read() function since all
callers were only calling the function with a length of 1.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Jonathan Cameron [Sat, 5 Nov 2016 17:38:00 +0000 (17:38 +0000)]
Merge branch 'ib-iio-mfd-ti335x_dma' into togreg
A local branch created as Lee requested these two patches were applied
in a fashion that would later let him merge the same branch into MFD
if needed.
Mugunthan V N [Wed, 5 Oct 2016 09:04:41 +0000 (14:34 +0530)]
drivers: iio: ti_am335x_adc: add dma support
This patch adds the required pieces to ti_am335x_adc driver for
DMA support
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Mugunthan V N [Wed, 5 Oct 2016 09:04:40 +0000 (14:34 +0530)]
mfd: ti_am335x_tscadc: store physical address
store the physical address of the device in its priv to use it
for DMA addressing in the client drivers.
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Wenyou Yang [Wed, 2 Nov 2016 09:21:48 +0000 (17:21 +0800)]
iio: adc: at91: add suspend and resume callback
Add suspend/resume callback, support the pinctrl sleep state when
the system suspend as well.
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Song Hongyan [Thu, 3 Nov 2016 00:45:48 +0000 (00:45 +0000)]
iio: hid-sensor-attributes: Check sample_frequency/hysteresis write data legitimacy
Neither sample frequency value nor hysteresis value can be set to be a
negative number, check and return "Invalid argument" if they are negative.
If not do this change, sample_frequency will be set into some unknown
value, read hysteresis value after write negative number will return
"Invalid argument".
Signed-off-by: Song Hongyan <hongyan.song@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Eva Rachel Retuya [Mon, 31 Oct 2016 17:04:35 +0000 (01:04 +0800)]
staging: iio: ad9832: clean-up regulator 'reg'
Rename regulator 'reg' to 'avdd' so as to be clear what regulator it
stands for specifically. Additionally, get rid of local variable 'reg'
and use direct assignment instead. Update also the goto label pertaining
to the avdd regulator during disable.
Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Eva Rachel Retuya [Mon, 31 Oct 2016 17:04:34 +0000 (01:04 +0800)]
staging: iio: ad9832: add DVDD regulator
The AD9832/AD9835 is supplied with two power sources: AVDD as analog
supply voltage and DVDD as digital supply voltage.
Attempt to fetch and enable the regulator 'dvdd'. Bail out if any error
occurs.
Suggested-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Eva Rachel Retuya [Mon, 31 Oct 2016 17:04:33 +0000 (01:04 +0800)]
staging: iio: ad7192: rename regulator 'reg' to 'avdd'
Rename regulator 'reg' to 'avdd' so as to be clear what regulator it
stands for specifically. Also, update the goto label accordingly.
Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Eva Rachel Retuya [Mon, 31 Oct 2016 17:04:32 +0000 (01:04 +0800)]
staging: iio: ad7192: add DVdd regulator
The AD7190/AD7192/AD7193/AD7195 is supplied with two power sources:
AVdd as analog supply voltage and DVdd as digital supply voltage.
Attempt to fetch and enable the regulator 'dvdd'. Bail out if any error
occurs.
Suggested-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Eva Rachel Retuya [Mon, 31 Oct 2016 17:04:31 +0000 (01:04 +0800)]
staging: iio: rework regulator handling
Currently, the affected drivers ignore all errors from regulator_get().
The way it is now, it also breaks probe deferral (EPROBE_DEFER). The
correct behavior is to propagate the error to the upper layers so they
can handle it accordingly.
Rework the regulator handling so that it matches the standard behavior.
If the specific design uses a static always-on regulator and does not
explicitly specify it, regulator_get() will return the dummy regulator.
The following semantic patch was used to apply the change:
@r1@
expression reg, dev, en, volt;
@@
reg = \(devm_regulator_get\|regulator_get\)(dev, ...);
if (
- !
IS_ERR(reg))
+ return PTR_ERR(reg);
(
- { en = regulator_enable(reg);
- if (en) return en; }
+
+ en = regulator_enable(reg);
+ if (en) {
+ dev_err(dev, "Failed to enable specified supply\n");
+ return en; }
|
+
- { en = regulator_enable(reg);
- if (en) return en;
- volt = regulator_get_voltage(reg); }
+ en = regulator_enable(reg);
+ if (en) {
+ dev_err(dev, "Failed to enable specified supply\n");
+ return en;
+ }
+ volt = regulator_get_voltage(reg);
)
@r2@
expression arg;
@@
- if (!IS_ERR(arg)) regulator_disable(arg);
+ regulator_disable(arg);
Hand-edit the debugging prints with the supply name to become more
specific.
Suggested-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Eva Rachel Retuya [Mon, 31 Oct 2016 17:04:30 +0000 (01:04 +0800)]
staging: iio: set proper supply name to devm_regulator_get()
The name passed to devm_regulator_get() should match the name of the
supply as specified in the device datasheet. This makes it clear what
power supply is being referred to in case of presence of other
regulators.
Currently, the supply name specified on the affected devices is 'vcc'.
Use lowercase version of the datasheet name to specify the supply
voltage.
Suggested-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Jonathan Cameron [Tue, 1 Nov 2016 18:53:11 +0000 (18:53 +0000)]
Merge branch 'ib-iio-mfd-4.9rc1' into togreg
Immutable branch to allow mfd changes to also be available in Lee's MFD tree.
Eva Rachel Retuya [Fri, 28 Oct 2016 08:26:52 +0000 (16:26 +0800)]
staging: iio: cdc: ad7746: add additional config defines
Introduce defines for shifting and mask under the config register for
better readability. Also, introduce helper variables for index
calculation.
Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Brian Masney [Fri, 28 Oct 2016 10:00:21 +0000 (06:00 -0400)]
staging: iio: tsl2583: add locking to sysfs attributes
in_illuminance_input_target_show(), in_illuminance_input_target_store(),
in_illuminance_calibrate_store(), and in_illuminance_lux_table_store()
accesses data from the tsl2583_chip struct. Some of these fields can be
modified by other parts of the driver concurrently. This patch adds the
mutex locking to these sysfs attributes.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Brian Masney [Fri, 28 Oct 2016 10:00:20 +0000 (06:00 -0400)]
staging: iio: tsl2583: add error code to sysfs store functions
in_illuminance_input_target_store() and in_illuminance_calibrate_store()
validated the data from userspace, however it would not return an
error code to userspace if an invalid value was passed in. This patch
changes these functions so that they return -EINVAL if invalid data is
passed in.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Brian Masney [Fri, 28 Oct 2016 10:00:19 +0000 (06:00 -0400)]
staging: iio: tsl2583: use IIO_*_ATTR* macros to create sysfs entries
Use the IIO_CONST_ATTR, IIO_DEVICE_ATTR_RW, and IIO_DEVICE_ATTR_WO
macros for creating the in_illuminance_calibscale_available,
in_illuminance_integration_time_available, in_illuminance_input_target,
in_illuminance_calibrate, and in_illuminance_lux_table sysfs entries.
Previously these sysfs entries were prefixed with illuminance0_, however
they are now prefixed with in_illuminance_ to make these sysfs entries
consistent with how the IIO core is creating the other sysfs entries.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Brian Masney [Fri, 28 Oct 2016 10:00:18 +0000 (06:00 -0400)]
staging: iio: tsl2583: convert illuminance0_calibscale sysfs attr to use iio_chan_spec
The illuminance0_calibscale sysfs attribute is not currently created by
the IIO core. This patch adds the appropriate mask to iio_chan_spec,
along with the appropriate data handling in the read_raw() and
write_raw() functions, so that the sysfs attribute is created by the IIO
core. With this change, this sysfs entry will have its prefix changed
from illuminance0_ to in_illuminance_.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Brian Masney [Fri, 28 Oct 2016 10:00:17 +0000 (06:00 -0400)]
staging: iio: tsl2583: convert to use iio_chan_spec and {read,write}_raw
The tsl2583 driver directly creates sysfs attributes that should instead
be created by the IIO core on behalf of the driver. This patch adds the
iio_chan_spec array, the relevant info_mask elements and the read_raw()
and write_raw() functions to take advantage of features provided by the
IIO core. These sysfs attributes were migrated with this patch:
illuminance0_input, illuminance0_calibbias,
illuminance0_integration_time. This also exposes the raw values read
from the two channels on the sensor.
With this change, these four sysfs entries have their prefix changed
from illuminance0_ to in_illuminance_. This is deemed to be acceptable
since none of the IIO light drivers in mainline use the illuminance0_
prefix, however 8 of the IIO light drivers in mainline use the
in_illuminance_ prefix.
Also fix the units of integration_time to meet with the ABI.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Brian Masney [Fri, 28 Oct 2016 10:00:16 +0000 (06:00 -0400)]
staging: iio: tsl2583: check return values from taos_chip_{on,off}
The return value from taos_chip_on() and taos_chip_off() was not
checked in taos_luxtable_store() and taos_probe(). This patch adds
proper error checking to these function calls.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Brian Masney [Fri, 28 Oct 2016 10:00:15 +0000 (06:00 -0400)]
staging: iio: tsl2583: remove redundant power_state sysfs attribute
IIO devices have a /sys/bus/iio/devices/iio:deviceX/power/ directory
that allows viewing and controling various power parameters. The tsl2583
driver also has an additional custom sysfs attribute named power_state
that is not needed. This patch removes the redundant power_state sysfs
attribute.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Brian Masney [Fri, 28 Oct 2016 10:00:14 +0000 (06:00 -0400)]
staging: iio: tsl2583: return proper error code instead of -1
taos_als_calibrate() has a code path where -1 is returned. This patch
changes the code so that a proper error code is returned.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Brian Masney [Fri, 28 Oct 2016 10:00:13 +0000 (06:00 -0400)]
staging: iio: tsl2583: check for error code from i2c_smbus_read_byte()
taos_i2c_read() and taos_als_calibrate() does not check to see if the
value returned by i2c_smbus_read_byte() was an error code. This patch
adds the appropriate error handling.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Brian Masney [Fri, 28 Oct 2016 10:00:12 +0000 (06:00 -0400)]
staging: iio: tsl2583: add of_match table for device tree support
Add device tree support for the tsl2583 IIO driver with no custom
properties.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Lorenzo Bianconi [Tue, 25 Oct 2016 21:09:04 +0000 (23:09 +0200)]
Documentation: dt: iio: accel: add lng2dm sensor device binding
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Lorenzo Bianconi [Tue, 25 Oct 2016 21:09:03 +0000 (23:09 +0200)]
iio: accel: st_accel: add support to lng2dm
add support to STMicroelectronics LNG2DM accelerometer to
st_accel framework
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>