- 21 Sep, 2019 2 commits
-
-
Andrea Merello authored
This driver supports 14-bits and 16-bits devices. All of them have a 14-bit configuration registers. All SPI trasfers, for reading AD conversion results and for writing the configuration register, fit in two bytes. The driver always uses 4-bytes xfers which seems at least pointless (maybe even harmful). This patch trims the SPI xfer len and the buffer size to two bytes. Signed-off-by:
Andrea Merello <andrea.merello@gmail.com> Reviewed-by:
Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
-
Alexandru Ardelean authored
The iio_triggered_buffer_{predisable,postenable} functions attach/detach the poll functions. For the predisable hook, the disable code should occur before detaching the poll func, and for the postenable hook, the poll func should be attached before the enable code. The driver was slightly reworked. The preenable hook was moved to the postenable, to add some symmetry to the postenable/predisable part. Signed-off-by:
-
- 15 Sep, 2019 6 commits
-
-
Andrea Merello authored
Adding missing indio_dev->dev.of_node references so that, in case multiple max31856 are present, users can get some clues to being able to distinguish each of them. While at it, add also the missing parent reference. Signed-off-by:
-
Lorenzo Bianconi authored
Enable clear on read feature for latched interrupts. This bit allows immediately clearing the latched interrupts of an event detection upon the read of the corresponding status register. It must be set to 1 together with LIR. This feature is available just on LSM6DS0/LSM6DSR/ASM330LHH Signed-off-by:
Lorenzo Bianconi <lorenzo@kernel.org> Tested-by:
Sean Nyekjaer <sean@geanix.com> Signed-off-by:
-
Lorenzo Bianconi authored
Enable Latched interrupt by default for sensor events Signed-off-by:
-
Andrea Merello authored
The device could be configured to spit out also the configuration word while reading the AD result value (in the same SPI xfer) - this is called "readback" in the device datasheet. The driver checks if readback is enabled and it eventually adjusts the SPI xfer length and it applies proper shifts to still get the data, discarding the configuration word. The readback option is actually never enabled (the driver disables it), so the said checks do not serve for any purpose. Since enabling the readback option seems not to provide any advantage (the driver entirely sets the configuration word without relying on any default value), just kill the said, unused, code. Signed-off-by:
-
Rohit Sarkar authored
'#include<linux/gpio.h>' isn't being used anywhere. Remove it. Signed-off-by:
Rohit Sarkar <rohitsarkar5398@gmail.com> Signed-off-by:
-
Krzysztof Wilczynski authored
Separate the declaration of struct bh1750_chip_info from definition of bh1750_chip_info_tbl[] in a single statement as it makes the code hard to read, and with the extra newline it makes it look as if the bh1750_chip_info_tbl[] had no explicit type. This change also resolves the following compiler warning about the unusual position of the static keyword that can be seen when building with warnings enabled (W=1): drivers/iio/light/bh1750.c:64:1: warning: ‘static’ is not at beginning of declaration [-Wold-style-declaration] Related to commit 3a11fbb0 ("iio: light: add support for ROHM BH1710/BH1715/BH1721/BH1750/BH1751 ambient light sensors"). Signed-off-by:
Krzysztof Wilczynski <kw@linux.com> Acked-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by:
-
- 08 Sep, 2019 7 commits
-
-
Artur Rojek authored
Add support for the ADC hardware present on Ingenic JZ4770 SoC. Signed-off-by:
Artur Rojek <contact@artur-rojek.eu> Tested-by:
Paul Cercueil <paul@crapouillou.net> Signed-off-by:
-
Artur Rojek authored
Introduce support for AUX2 channel found in ADC hardware present on Ingenic JZ4770 SoC. Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
-
Artur Rojek authored
Add a compatible string for the ADC controller present on Ingenic JZ4770 SoC. Signed-off-by:
-
Colin Ian King authored
Variable ret is being assigned a value that is never read and is being re-assigned a little later on. The assignment is redundant and hence can be removed. Addresses-Coverity: ("Ununsed value") Signed-off-by:Colin Ian King <colin.king@canonical.com> Signed-off-by:
-
Mircea Caprioru authored
This patch will add a system calibration attribute for each channel. Using this option the user will have the ability to calibrate each channel for zero scale and full scale. It uses the iio_chan_spec_ext_info and IIO_ENUM to implement the functionality. Signed-off-by:
Mircea Caprioru <mircea.caprioru@analog.com> Signed-off-by:
-
Mircea Caprioru authored
This patch exports the ad_sd_calibrate function in order to be able to call it from outside ad_sigma_delta. There are cases where the option to calibrate one channel at a time is necessary (ex. system calibration for zero scale and full scale). Signed-off-by:
-
Mircea Caprioru authored
Add initial ABI documentation for ad7192 adc sysfs interfaces. Signed-off-by:
-
- 06 Sep, 2019 1 commit
-
-
Andy Shevchenko authored
The commit 473d12f7 ("iio: hid-sensor-attributes: Convert to use int_pow()") converted to use generic int_pow() helper. Though, the generic one returns 64-bit value and, in cases when it is used as divisor, it compels 64-bit division from compiler. In order to fix this, introduce a temporary 32-bit variable to hold the result of int_pow() and use it as divisor afterwards. In couple of cases, replace int_pow() with a predefined unit factors for time and frequency. Fixes: 473d12f7 ("iio: hid-sensor-attributes: Convert to use int_pow()") Reported-by:
kbuild test robot <lkp@intel.com> Reported-by:
Nathan Chancellor <natechancellor@gmail.com> Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by:
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://lore.kernel.org/r/20190905112759.13035-1-andriy.shevchenko@linux.intel.comSigned-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-
- 05 Sep, 2019 24 commits
-
-
Gao Xiang authored
As Christoph said [1], "I'd much prefer to just use read_cache_page_gfp, and live with the fact that this allocates bufferheads behind you for now. I'll try to speed up my attempts to get rid of the buffer heads on the block device mapping instead. " This simplifies the code a lot and a minor thing is "no REQ_META (e.g. for blktrace) on metadata at all..." [1] https://lore.kernel.org/r/20190903153704.GA2201@infradead.org/Reported-by:
Christoph Hellwig <hch@infradead.org> Signed-off-by:
Gao Xiang <gaoxiang25@huawei.com> Link: https://lore.kernel.org/r/20190904020912.63925-26-gaoxiang25@huawei.comSigned-off-by:
-
Gao Xiang authored
As Christoph said [1] [2], "Just use the slightly more complicated 32-bit version everywhere so that you have a single actually tested code path. And then remove this helper. " [1] https://lore.kernel.org/r/20190829102426.GE20598@infradead.org/ [2] https://lore.kernel.org/r/20190902125320.GA16726@infradead.org/Reported-by:
-
Gao Xiang authored
As Christoph said [1], "This seems to be your only direct use of buffer heads, which while not deprecated are a bit of an ugly step child. So if you can easily avoid creating a buffer_head dependency in a new filesystem I think you should avoid it. " [1] https://lore.kernel.org/r/20190902125109.GA9826@infradead.org/Reported-by:
-
Gao Xiang authored
Add prefix "erofs_" to these functions and print sb->s_id as a prefix to erofs_{err, info} so that the user knows which file system is affected. Reported-by: -
Gao Xiang authored
As Christoph said [1], ".. and save one level of indentation." [1] https://lore.kernel.org/r/20190829102426.GE20598@infradead.org/Reported-by:
-
Gao Xiang authored
As Christoph said [1], "vm_map_ram is supposed to generally behave better. So if it doesn't please report that that to the arch maintainer and linux-mm so that they can look into the issue. Having user make choices of deep down kernel internals is just a horrible interface. Please talk to maintainers of other bits of the kernel if you see issues and / or need enhancements. " Let's redo the previous conclusion and kill the vmap approach. [1] https://lore.kernel.org/r/20190830165533.GA10909@infradead.org/Reported-by:
-
Gao Xiang authored
As Christoph suggested [1], "Please just use plain kmalloc everywhere and let the normal kernel error injection code take care of injeting any errors." [1] https://lore.kernel.org/r/20190829102426.GE20598@infradead.org/Reported-by:
-
Gao Xiang authored
Add erofs_ prefix to free_inode, alloc_inode, ... Reported-by:
-
Gao Xiang authored
As Christoph pointed out [1], " Why is there __submit_bio which really just obsfucates what is going on? Also why is __submit_bio using bio_set_op_attrs instead of opencode it as the comment right next to it asks you to? " Let's use submit_bio directly instead. [1] https://lore.kernel.org/r/20190830162812.GA10694@infradead.org/Reported-by:
-
Gao Xiang authored
As Christoph pointed out [1], "Why is there __erofs_get_meta_page with the two weird booleans instead of a single erofs_get_meta_page that gets and gfp_t for additional flags and an unsigned int for additional bio op flags." And since all callers can handle errors, let's kill prio and nofail and erofs_get_inline_page() now. [1] https://lore.kernel.org/r/20190830162812.GA10694@infradead.org/Reported-by:
-
Gao Xiang authored
As Christoph pointed out [1], "erofs_grab_bio tries to handle a bio_alloc failure, except that the function will not actually fail due the mempool backing it." Sorry about useless code, fix it now and localize erofs_grab_bio [2]. [1] https://lore.kernel.org/r/20190830162812.GA10694@infradead.org/ [2] https://lore.kernel.org/r/20190902122016.GL15931@infradead.org/Reported-by:
-
Gao Xiang authored
As Christoph said [1], "That is some very verbose debug info. We usually don't add that and let people trace the function instead. " [1] https://lore.kernel.org/r/20190829101545.GC20598@infradead.org/Reported-by:
-
Gao Xiang authored
As Christoph pointed out [1], "Why is the variable name for the on-disk subperblock layout? We usually still calls this something with sb in the name, e.g. dsb. for disksuper block. " Let's fix it. [1] https://lore.kernel.org/r/20190829101545.GC20598@infradead.org/Signed-off-by:
-
Gao Xiang authored
Fix as Christoph suggested [1] [2], "remove is_inode_fast_symlink and just opencode it in the few places using it" and "Please just set the ops directly instead of obsfucating that in a single caller, single line inline function. And please set it instead of the normal symlink iops in the same place where you also set those." [1] https://lore.kernel.org/r/20190830163910.GB29603@infradead.org/ [2] https://lore.kernel.org/r/20190829102426.GE20598@infradead.org/Reported-by:
-
Gao Xiang authored
As Christoph suggested [1], update them all. [1] https://lore.kernel.org/r/20190829102426.GE20598@infradead.org/Reported-by:
-
Gao Xiang authored
As Christoph said [1] [2], update it now. [1] https://lore.kernel.org/r/20190902124521.GA22153@infradead.org/ [2] https://lore.kernel.org/r/20190902120548.GB15931@infradead.org/Reported-by:
-
Gao Xiang authored
As Christoph suggested [1], "Why is this called vnode instead of inode? That seems like a rather odd naming for a Linux file system." [1] https://lore.kernel.org/r/20190829101545.GC20598@infradead.org/Reported-by:
-
Gao Xiang authored
As Christoph said [1] "having this function seems entirely pointless", let's kill those. filesystem function name ext2,f2fs,ext4,isofs,squashfs,cifs,... init_inodecache In addition, add a necessary "rcu_barrier()" on exit_fs(); [1] https://lore.kernel.org/r/20190829101545.GC20598@infradead.org/Reported-by:
-
Gao Xiang authored
updates inode naming - kill is_inode_layout_compression [1] - kill magic underscores [2] [3] - better naming for datamode & data_mapping_mode [3] - better naming erofs_inode_{compact, extended} [4] [1] https://lore.kernel.org/r/20190829102426.GE20598@infradead.org/ [2] https://lore.kernel.org/r/20190829102426.GE20598@infradead.org/ [3] https://lore.kernel.org/r/20190902122627.GN15931@infradead.org/ [4] https://lore.kernel.org/r/20190902125438.GA17750@infradead.org/Reported-by: -
Gao Xiang authored
As Christoph said [1], "This is only cosmetic, why not stick to feature_compat and feature_incompat?" In my thought, requirements means "incompatible" instead of "feature" though. [1] https://lore.kernel.org/r/20190902125109.GA9826@infradead.org/Reported-by:
-
Gao Xiang authored
As Christoph said, "This looks like a really obsfucated way to write: return datamode == EROFS_INODE_FLAT_COMPRESSION || datamode == EROFS_INODE_FLAT_COMPRESSION_LEGACY; " Although I had my own consideration, it's the right way for now. [1] https://lore.kernel.org/r/20190829095954.GB20598@infradead.org/Reported-by:
-
Gao Xiang authored
As Christoph suggested "Please don't add __packed" [1], remove all __packed except struct erofs_dirent here. Note that all on-disk fields except struct erofs_dirent (12 bytes with a 8-byte nid) in EROFS are naturally aligned. [1] https://lore.kernel.org/r/20190829095954.GB20598@infradead.org/Reported-by:
-
Gao Xiang authored
As Christoph suggested [1], these macros are much more readable as a function. [1] https://lore.kernel.org/r/20190829095954.GB20598@infradead.org/Reported-by:
-
Gao Xiang authored
As Christoph suggested [1], on-disk format should have explicitly assigned numbers. [1] https://lore.kernel.org/r/20190829095954.GB20598@infradead.org/Reported-by:
-
