- 10 Feb, 2018 3 commits
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Phil Reid authored
Add implementation for Analog Devices AD5272 and AD5274 digital potentiometer devices. Signed-off-by:
Phil Reid <preid@electromag.com.au> Signed-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Phil Reid authored
Add binding documentation for Analog Devices AD5272 and AD5274 digital potentiometer devices. Signed-off-by:
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Shreeya Patel authored
iio_dev->mlock is to be used only by the IIO core for protecting device mode changes between INDIO_DIRECT and INDIO_BUFFER. This patch replaces the use of mlock with the already established buf_lock mutex. Introducing 'unlocked' forms of read and write registers. The read/write frequency functions now require buf_lock to be held. That's not obvious so avoid this but moving the locking inside the functions where it is then clear that they are taking the unlocked forms of the register read/write. It isn't readily apparent that write frequency function requires the locks to be taken, so move it inside the function to where it is required to protect. Also, the read raw does not require iio_dev->mlock for reads. It can run concurrently as resource protection is handled by buf_lock in read register. Signed-off-by:
Shreeya Patel <shreeya.patel23498@gmail.com> Signed-off-by:
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- 04 Feb, 2018 3 commits
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Crt Mori authored
Melexis has just released Infra Red temperature sensor MLX90632 used for contact-less temperature measurement. Driver provides basic functionality for reporting object (and ambient) temperature with support for object emissivity. Signed-off-by:
Crt Mori <cmo@melexis.com> Signed-off-by:
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Crt Mori authored
Add device tree bindings for MLX90632 IR temperature sensor. Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Crt Mori authored
There is no option to perform 64bit integer sqrt on 32bit platform. Added stronger typed int_sqrt64 enables the 64bit calculations to be performed on 32bit platforms. Using same algorithm as int_sqrt() with strong typing provides enough precision also on 32bit platforms, but it sacrifices some performance. In case values are smaller than ULONG_MAX the standard int_sqrt is used for calculation to maximize the performance due to more native calculations. Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
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- 30 Jan, 2018 15 commits
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Lorenzo Bianconi authored
Introduce hw timestamp support instead of compute sample timestamps according to interrupt rate and configured watermark. LSM6DSx based devices are able to queue in hw FIFO the time reference of data sampling Signed-off-by:
Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by:
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Milan Stevanovic authored
Using an SPDX tag. Remove a license notice to keep the whole purpose of using an SPDx id. Signed-off-by:
Milan Stevanovic <milan.o.stevanovic@gmail.com> Signed-off-by:
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Milan Stevanovic authored
Add Linux device driver for TI single-channel CMOS 8/10/12-bit analog-to-digital converter with a high-speed serial interface. Signed-off-by: -
Randy Dunlap authored
Drivers should not 'select' a subsystem. Instead they should depend on it. If the subsystem is disabled, the user probably did that for a purpose and one driver shouldn't be changing that. This also makes all IIO drivers consistent w.r.t depending on SYSFS instead of selecting it. Signed-off-by:
Randy Dunlap <rdunlap@infradead.org> Cc: Jonathan Cameron <jic23@kernel.org> Cc: linux-iio@vger.kernel.org Signed-off-by:
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Quentin Schulz authored
The X-Powers AXP813 PMIC is really close to what is already done for AXP20X/AXP22X. There are two pairs of bits to set the rate (one for Voltage and Current measurements and one for TS/GPIO0 voltage measurements) instead of one. The register to set the ADC rates is different from the one for AXP20X/AXP22X. GPIO0 can be used as an ADC (measuring Volts) unlike for AXP22X. The scales to apply to the different inputs are unlike the ones from AXP20X and AXP22X. Signed-off-by:
Quentin Schulz <quentin.schulz@free-electrons.com> Acked-by:
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Quentin Schulz authored
To prepare for a future patch that will add a DT node for the ADC, make axp20x_adc able to probe from DT and get the per-variant data from of_device_id.data since platform_device_id.driver_data won't be set when probing by DT. Leave the ability to probe via platform for driver compatibility with old DTs. Signed-off-by:
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Quentin Schulz authored
X-Powers PMICs have several ADC channels that can be used for different purposes, e.g. PMIC internal temperature, battery voltage or AC current. This is the documentation for AXP209, AXP221/223 and AXP813 ADC bindings. Signed-off-by:
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Quentin Schulz authored
To prepare for a new comer that set a different register with different values, move rate setting in a function that is specific to each AXP variant. Signed-off-by:
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Alexandru Ardelean authored
The burnout currents can be enabled only if buffer is enabled and CHOP is disabled. So, if neither of these conditions are met, then we should disable the burnout currents in the driver as well, and warn the user. This change doesn't fix anything. The burnout currents simply won't work if CHOP is enabled or buffer is disabled. The intent is to provide the user with some feedback instead of silently not working inside the chip. Signed-off-by:
Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by:
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Wei Yongjun authored
Remove unneeded error handling on the result of a call to platform_get_resource() when the value is passed to devm_ioremap_resource(). Signed-off-by:
Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by:
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Lorenzo Bianconi authored
Remove unnecessary unaligned access routine in hts221_read_oneshot() and the related include Signed-off-by:
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Lorenzo Bianconi authored
Introduce regmap API support to access to i2c/spi bus instead of using a custom support. Remove lock mutex since concurrency is already managed by regmap API Signed-off-by:
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Lorenzo Bianconi authored
Signed-off-by:
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Lorenzo Bianconi authored
Remove following sparse warnings in hts221_parse_temp_caldata() and in hts221_parse_rh_caldata(): drivers/iio/humidity/hts221_core.c:302:19: warning: cast to restricted __le16 drivers/iio/humidity/hts221_core.c:314:18: warning: cast to restricted __le16 drivers/iio/humidity/hts221_core.c:320:18: warning: cast to restricted __le16 drivers/iio/humidity/hts221_core.c:355:18: warning: cast to restricted __le16 drivers/iio/humidity/hts221_core.c:361:18: warning: cast to restricted __le16 Fixes: e4a70e3e ("iio: humidity: add support to hts221 rh/temp combo device") Signed-off-by:
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Xiongfeng Wang authored
gcc-8 reports drivers/iio/accel/st_accel_i2c.c: In function 'st_accel_i2c_probe': ./include/linux/string.h:245:9: warning: '__builtin_strncpy' specified bound 20 equals destination size [-Wstringop-truncation] The compiler require that the length of the dest string is greater than the length we want to copy to make sure the dest string is nul-terminated. We can just use strlcpy() to avoid this warning. Signed-off-by:
Xiongfeng Wang <xiongfeng.wang@linaro.org> Signed-off-by:
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- 10 Jan, 2018 5 commits
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Michael Panzlaff authored
This patch changes the indentation of the statements after case labels. The linux coding guidelines do not explicitly mentiond this but pretty much all existing code doesn't put any statements into the same line of their belonging case labels. Therefore this adapts to the more usual style. Please note that there is still a lot of > 80 character lines which will cause checkpatch warnings. This patch does not intent to fix this already existing issue. Signed-off-by:
Michael Panzlaff <michael.panzlaff@fau.de> Signed-off-by:
Tillmann Zipperer <tillmann.zipperer@fau.de> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Luis de Bethencourt authored
The trailing semicolon is an empty statement that does nothing. Removing it since it has no purpose. Signed-off-by:
Luis de Bethencourt <luisbg@kernel.org> Signed-off-by:
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Luis de Bethencourt authored
The trailing semicolon is an empty statement that does no operation. Removing it since it doesn't do anything. Signed-off-by:
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Luis Gerhorst authored
This fixes the checkpatch message: CHECK: Alignment should match open parenthesis #1380: FILE: drivers/staging/fbtft/fbtft-core.c:1380: + dev_warn(dev, + "no default functions for regwidth=%d and buswidth=%d\n", Signed-off-by:Luis Gerhorst <linux-kernel@luisgerhorst.de> Signed-off-by:
Jonny Schaefer <schaefer.jonny@gmail.com> Acked-by:
Alexander Wuerstlein <arw@cs.fau.de> Signed-off-by:
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Sumit Pundir authored
Fixes the misspelled constant to 'SWITCH_NO_ERR'. Issue reported by checkpatch.pl Signed-off-by:
Sumit Pundir <pundirsumit11@gmail.com> Signed-off-by:
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- 09 Jan, 2018 14 commits
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Joe Perches authored
Several staging directories have TODO files that indicate a subsystem will be removed in the future. Using a status entry of "S: Obsolete" helps indicate the subsystem files should not be modified unnecessarily. checkpatch also tests this setting and emits a warning that the matching subsystem files should not be modified. This might help avoid receiving patches that will be dropped. Signed-off-by:
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Luis de Bethencourt authored
The trailing semicolon is an empty statement that does no operation. Removing it since it doesn't do anything. Signed-off-by:
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Colin Ian King authored
Casting a value returned by memory an allocation function is not required and can be removed. Also add in a newline after before the first statement. Code clean up as suggested by coccinelle. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Valentin Vidic authored
Fixes checkpatch warnings: CHECK: Alignment should match open parenthesis Signed-off-by:
Valentin Vidic <Valentin.Vidic@CARNet.hr> Signed-off-by:
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Gilad Ben-Yossef authored
The dma mask var was defined as dma_addr_t but should be u64. This showed as a sparse warning when building for 32 bit. Fix it by changing type to u64 and drop the cast. Signed-off-by:
Gilad Ben-Yossef <gilad@benyossef.com> Signed-off-by:
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Gilad Ben-Yossef authored
The debugfs interface defines stub function if debugfs is not enabled, which were missing the 'static inline' qualifiers causing sparse warnings. Signed-off-by:
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Gilad Ben-Yossef authored
Add the missing include of include file with function declarations. Signed-off-by:
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Gilad Ben-Yossef authored
Remove include files not needed for compilation. Signed-off-by:
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Gilad Ben-Yossef authored
The ccree driver source files were using an inconsistent naming convention stemming from what the company was called when they were added. Move to a single consistent naming convention for better code readability. Signed-off-by:
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NeilBrown authored
LIBCFS_ALLOC LIBCFS_ALLOC_ATOMIC LIBCFS_ALLOC_POST LIBCFS_CPT_ALLOC LIBCFS_FREE are no longer used, and so are removed. Signed-off-by:
NeilBrown <neilb@suse.com> Signed-off-by:
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NeilBrown authored
LIBCFS_APT_ALLOC() calls kvmalloc_node() with GFP_NOFS which is not permitted. Mostly, a kmalloc_node(GFP_NOFS) is appropriate, though occasionally the allocation is large and GFP_KERNEL is acceptable, so kvmalloc_node() can be used. This patch introduces 4 alternatives to LIBCFS_CPT_ALLOC(): kmalloc_cpt() kzalloc_cpt() kvmalloc_cpt() kvzalloc_cpt(). Each takes a size, gfp flags, and cpt number. Almost every call to LIBCFS_CPT_ALLOC() passes lnet_cpt_table() as the table. This patch embeds that choice in the k*alloc_cpt() macros, and opencode kzalloc_node(..., cfs_cpt_spread_node(..)) in the one case that lnet_cpt_table() isn't used. When LIBCFS_CPT_ALLOC() is replaced, the matching LIBCFS_FREE() is also replaced, with with kfree() or kvfree() as appropriate. Signed-off-by:
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NeilBrown authored
Just call kzalloc(GFP_ATOMIC) directly. We don't need the warning on failure. Signed-off-by:
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NeilBrown authored
this allocation is called from several places, but all are during initialization, so GFP_NOFS is not needed. So use kvmalloc and GFP_KERNEL. Signed-off-by:
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NeilBrown authored
The size of the data structure is primarily controlled by the iovec size, which is limited to 256. Entries in this vector are 12 bytes, so the whole will always fit in a page. So it is safe to use kmalloc (kvmalloc not needed). So replace LIBCFS_ALLOC with kmalloc. Signed-off-by:
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