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Jonathan Corbet
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Merge tag 'v4.10-rc1' into docs-next
Linux 4.10-rc1
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‎CREDITS

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@@ -9,7 +9,7 @@
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Linus
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----------
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M: Matt Mackal
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N: Matt Mackal
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E: mpm@selenic.com
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D: SLOB slab allocator
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@@ -1910,7 +1910,7 @@ S: Ra'annana, Israel
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19111911
N: Andi Kleen
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E: andi@firstfloor.org
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U: http://www.halobates.de
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W: http://www.halobates.de
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D: network, x86, NUMA, various hacks
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S: Schwalbenstr. 96
19161916
S: 85551 Ottobrunn
@@ -2089,8 +2089,8 @@ D: ST Microelectronics SPEAr13xx PCI host bridge driver
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D: Synopsys Designware PCI host bridge driver
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20912091
N: Gabor Kuti
2092-
M: seasons@falcon.sch.bme.hu
2093-
M: seasons@makosteszta.sote.hu
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E: seasons@falcon.sch.bme.hu
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E: seasons@makosteszta.sote.hu
20942094
D: Original author of software suspend
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20962096
N: Jaroslav Kysela
@@ -2775,6 +2775,10 @@ S: C/ Mieses 20, 9-B
27752775
S: Valladolid 47009
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S: Spain
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N: Peter Oruba
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D: AMD Microcode loader driver
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S: Germany
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27782782
N: Jens Osterkamp
27792783
E: jens@de.ibm.com
27802784
D: Maintainer of Spidernet network driver for Cell
@@ -3945,8 +3949,6 @@ E: gwingerde@gmail.com
39453949
D: Ralink rt2x00 WLAN driver
39463950
D: Minix V2 file-system
39473951
D: Misc fixes
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S: Geessinkweg 177
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S: 7544 TX Enschede
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S: The Netherlands
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N: Lars Wirzenius

‎Documentation/00-INDEX

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@@ -152,8 +152,6 @@ driver-model/
152152
- directory with info about Linux driver model.
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early-userspace/
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- info about initramfs, klibc, and userspace early during boot.
155-
edac.txt
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- information on EDAC - Error Detection And Correction
157155
efi-stub.txt
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- How to use the EFI boot stub to bypass GRUB or elilo on EFI systems.
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eisa.txt

‎Documentation/ABI/stable/sysfs-devices

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Any device associated with a device-tree node will have
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an of_path symlink pointing to the corresponding device
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node in /sys/firmware/devicetree/
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What: /sys/devices/*/devspec
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Date: October 2016
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Contact: Device Tree mailing list <devicetree@vger.kernel.org>
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Description:
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If CONFIG_OF is enabled, then this file is present. When
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read, it returns full name of the device node.
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What: /sys/devices/*/obppath
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Date: October 2016
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Contact: Device Tree mailing list <devicetree@vger.kernel.org>
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Description:
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If CONFIG_OF is enabled, then this file is present. When
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read, it returns full name of the device node.

‎Documentation/ABI/testing/sysfs-block

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write_same_max_bytes is 0, write same is not supported
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by the device.
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What: /sys/block/<disk>/queue/write_zeroes_max_bytes
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Date: November 2016
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Contact: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
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Description:
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Devices that support write zeroes operation in which a
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single request can be issued to zero out the range of
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contiguous blocks on storage without having any payload
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in the request. This can be used to optimize writing zeroes
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to the devices. write_zeroes_max_bytes indicates how many
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bytes can be written in a single write zeroes command. If
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write_zeroes_max_bytes is 0, write zeroes is not supported
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by the device.
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What: /sys/block/<disk>/queue/zoned
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Date: September 2016
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Contact: Damien Le Moal <damien.lemoal@hgst.com>
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Description:
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zoned indicates if the device is a zoned block device
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and the zone model of the device if it is indeed zoned.
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The possible values indicated by zoned are "none" for
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regular block devices and "host-aware" or "host-managed"
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for zoned block devices. The characteristics of
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host-aware and host-managed zoned block devices are
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described in the ZBC (Zoned Block Commands) and ZAC
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(Zoned Device ATA Command Set) standards. These standards
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also define the "drive-managed" zone model. However,
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since drive-managed zoned block devices do not support
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zone commands, they will be treated as regular block
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devices and zoned will report "none".
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What: /sys/block/<disk>/queue/chunk_sectors
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Date: September 2016
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Contact: Hannes Reinecke <hare@suse.com>
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Description:
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chunk_sectors has different meaning depending on the type
273+
of the disk. For a RAID device (dm-raid), chunk_sectors
274+
indicates the size in 512B sectors of the RAID volume
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stripe segment. For a zoned block device, either
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host-aware or host-managed, chunk_sectors indicates the
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size of 512B sectors of the zones of the device, with
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the eventual exception of the last zone of the device
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which may be smaller.

‎Documentation/ABI/testing/sysfs-bus-fsl-mc

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What: /sys/bus/fsl-mc/drivers/.../bind
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Date: December 2016
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Contact: stuart.yoder@nxp.com
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Description:
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Writing a device location to this file will cause
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the driver to attempt to bind to the device found at
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this location. The format for the location is Object.Id
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and is the same as found in /sys/bus/fsl-mc/devices/.
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For example:
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# echo dpni.2 > /sys/bus/fsl-mc/drivers/fsl_dpaa2_eth/bind
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What: /sys/bus/fsl-mc/drivers/.../unbind
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Date: December 2016
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Contact: stuart.yoder@nxp.com
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Description:
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Writing a device location to this file will cause the
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driver to attempt to unbind from the device found at
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this location. The format for the location is Object.Id
19+
and is the same as found in /sys/bus/fsl-mc/devices/.
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For example:
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# echo dpni.2 > /sys/bus/fsl-mc/drivers/fsl_dpaa2_eth/unbind

‎Documentation/ABI/testing/sysfs-bus-iio

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What: /sys/bus/iio/devices/iio:deviceX/in_humidityrelative_scale
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What: /sys/bus/iio/devices/iio:deviceX/in_velocity_sqrt(x^2+y^2+z^2)_scale
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What: /sys/bus/iio/devices/iio:deviceX/in_illuminance_scale
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What: /sys/bus/iio/devices/iio:deviceX/in_countY_scale
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KernelVersion: 2.6.35
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Contact: linux-iio@vger.kernel.org
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Description:
@@ -1579,3 +1580,20 @@ Contact: linux-iio@vger.kernel.org
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Description:
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Raw (unscaled no offset etc.) electric conductivity reading that
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can be processed to siemens per meter.
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What: /sys/bus/iio/devices/iio:deviceX/in_countY_raw
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KernelVersion: 4.9
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Contact: linux-iio@vger.kernel.org
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Description:
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Raw counter device counts from channel Y. For quadrature
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counters, multiplication by an available [Y]_scale results in
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the counts of a single quadrature signal phase from channel Y.
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What: /sys/bus/iio/devices/iio:deviceX/in_indexY_raw
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KernelVersion: 4.9
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Contact: linux-iio@vger.kernel.org
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Description:
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Raw counter device index value from channel Y. This attribute
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provides an absolute positional reference (e.g. a pulse once per
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revolution) which may be used to home positional systems as
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required.

‎Documentation/ABI/testing/sysfs-bus-iio-adc-envelope-detector

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What: /sys/bus/iio/devices/iio:deviceX/in_altvoltageY_invert
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Date: October 2016
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KernelVersion: 4.9
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Contact: Peter Rosin <peda@axentia.se>
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Description:
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The DAC is used to find the peak level of an alternating
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voltage input signal by a binary search using the output
8+
of a comparator wired to an interrupt pin. Like so:
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_
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| \
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input +------>-------|+ \
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| \
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.-------. | }---.
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| | | / |
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| dac|-->--|- / |
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| | |_/ |
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| | |
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| | |
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| irq|------<-------'
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| |
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'-------'
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The boolean invert attribute (0/1) should be set when the
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input signal is centered around the maximum value of the
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dac instead of zero. The envelope detector will search
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from below in this case and will also invert the result.
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The edge/level of the interrupt is also switched to its
27+
opposite value.
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29+
What: /sys/bus/iio/devices/iio:deviceX/in_altvoltageY_compare_interval
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Date: October 2016
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KernelVersion: 4.9
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Contact: Peter Rosin <peda@axentia.se>
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Description:
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Number of milliseconds to wait for the comparator in each
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step of the binary search for the input peak level. Needs
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to relate to the frequency of the input signal.

‎Documentation/ABI/testing/sysfs-bus-iio-counter-104-quad-8

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What: /sys/bus/iio/devices/iio:deviceX/in_count_count_direction_available
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What: /sys/bus/iio/devices/iio:deviceX/in_count_count_mode_available
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What: /sys/bus/iio/devices/iio:deviceX/in_count_noise_error_available
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What: /sys/bus/iio/devices/iio:deviceX/in_count_quadrature_mode_available
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What: /sys/bus/iio/devices/iio:deviceX/in_index_index_polarity_available
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What: /sys/bus/iio/devices/iio:deviceX/in_index_synchronous_mode_available
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KernelVersion: 4.9
8+
Contact: linux-iio@vger.kernel.org
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Description:
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Discrete set of available values for the respective counter
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configuration are listed in this file.
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What: /sys/bus/iio/devices/iio:deviceX/in_countY_count_direction
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KernelVersion: 4.9
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Contact: linux-iio@vger.kernel.org
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Description:
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Read-only attribute that indicates whether the counter for
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channel Y is counting up or down.
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What: /sys/bus/iio/devices/iio:deviceX/in_countY_count_mode
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KernelVersion: 4.9
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Contact: linux-iio@vger.kernel.org
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Description:
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Count mode for channel Y. Four count modes are available:
25+
normal, range limit, non-recycle, and modulo-n. The preset value
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for channel Y is used by the count mode where required.
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Normal:
29+
Counting is continuous in either direction.
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Range Limit:
32+
An upper or lower limit is set, mimicking limit switches
33+
in the mechanical counterpart. The upper limit is set to
34+
the preset value, while the lower limit is set to 0. The
35+
counter freezes at count = preset when counting up, and
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at count = 0 when counting down. At either of these
37+
limits, the counting is resumed only when the count
38+
direction is reversed.
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Non-recycle:
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Counter is disabled whenever a 24-bit count overflow or
42+
underflow takes place. The counter is re-enabled when a
43+
new count value is loaded to the counter via a preset
44+
operation or write to raw.
45+
46+
Modulo-N:
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A count boundary is set between 0 and the preset value.
48+
The counter is reset to 0 at count = preset when
49+
counting up, while the counter is set to the preset
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value at count = 0 when counting down; the counter does
51+
not freeze at the bundary points, but counts
52+
continuously throughout.
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54+
What: /sys/bus/iio/devices/iio:deviceX/in_countY_noise_error
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KernelVersion: 4.9
56+
Contact: linux-iio@vger.kernel.org
57+
Description:
58+
Read-only attribute that indicates whether excessive noise is
59+
present at the channel Y count inputs in quadrature clock mode;
60+
irrelevant in non-quadrature clock mode.
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What: /sys/bus/iio/devices/iio:deviceX/in_countY_preset
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KernelVersion: 4.9
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Contact: linux-iio@vger.kernel.org
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Description:
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If the counter device supports preset registers, the preset
67+
count for channel Y is provided by this attribute.
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What: /sys/bus/iio/devices/iio:deviceX/in_countY_quadrature_mode
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KernelVersion: 4.9
71+
Contact: linux-iio@vger.kernel.org
72+
Description:
73+
Configure channel Y counter for non-quadrature or quadrature
74+
clock mode. Selecting non-quadrature clock mode will disable
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synchronous load mode. In quadrature clock mode, the channel Y
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scale attribute selects the encoder phase division (scale of 1
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selects full-cycle, scale of 0.5 selects half-cycle, scale of
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0.25 selects quarter-cycle) processed by the channel Y counter.
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Non-quadrature:
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The filter and decoder circuit are bypassed. Encoder A
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input serves as the count input and B as the UP/DOWN
83+
direction control input, with B = 1 selecting UP Count
84+
mode and B = 0 selecting Down Count mode.
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Quadrature:
87+
Encoder A and B inputs are digitally filtered and
88+
decoded for UP/DN clock.
89+
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What: /sys/bus/iio/devices/iio:deviceX/in_countY_set_to_preset_on_index
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KernelVersion: 4.9
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Contact: linux-iio@vger.kernel.org
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Description:
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Whether to set channel Y counter with channel Y preset value
95+
when channel Y index input is active, or continuously count.
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Valid attribute values are boolean.
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What: /sys/bus/iio/devices/iio:deviceX/in_indexY_index_polarity
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KernelVersion: 4.9
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Contact: linux-iio@vger.kernel.org
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Description:
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Active level of channel Y index input; irrelevant in
103+
non-synchronous load mode.
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What: /sys/bus/iio/devices/iio:deviceX/in_indexY_synchronous_mode
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KernelVersion: 4.9
107+
Contact: linux-iio@vger.kernel.org
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Description:
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Configure channel Y counter for non-synchronous or synchronous
110+
load mode. Synchronous load mode cannot be selected in
111+
non-quadrature clock mode.
112+
113+
Non-synchronous:
114+
A logic low level is the active level at this index
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input. The index function (as enabled via
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set_to_preset_on_index) is performed directly on the
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active level of the index input.
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Synchronous:
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Intended for interfacing with encoder Index output in
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quadrature clock mode. The active level is configured
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via index_polarity. The index function (as enabled via
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set_to_preset_on_index) is performed synchronously with
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the quadrature clock on the active level of the index
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input.

‎Documentation/ABI/testing/sysfs-bus-iio-cros-ec

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What: /sys/bus/iio/devices/iio:deviceX/calibrate
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Date: July 2015
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KernelVersion: 4.7
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Contact: linux-iio@vger.kernel.org
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Description:
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Writing '1' will perform a FOC (Fast Online Calibration). The
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corresponding calibration offsets can be read from *_calibbias
8+
entries.
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What: /sys/bus/iio/devices/iio:deviceX/location
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Date: July 2015
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KernelVersion: 4.7
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Contact: linux-iio@vger.kernel.org
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Description:
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This attribute returns a string with the physical location where
16+
the motion sensor is placed. For example, in a laptop a motion
17+
sensor can be located on the base or on the lid. Current valid
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values are 'base' and 'lid'.

‎Documentation/ABI/testing/sysfs-bus-iio-dac-dpot-dac

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What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw_available
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Date: October 2016
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KernelVersion: 4.9
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Contact: Peter Rosin <peda@axentia.se>
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Description:
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The range of available values represented as the minimum value,
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the step and the maximum value, all enclosed in square brackets.
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Example: [0 1 256]

‎Documentation/ABI/testing/sysfs-bus-iio-light-isl29018

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What: /sys/bus/iio/devices/iio:deviceX/proximity_on_chip_ambient_infrared_suppression
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Date: January 2011
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KernelVersion: 2.6.37
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Contact: linux-iio@vger.kernel.org
5+
Description:
6+
From ISL29018 Data Sheet (FN6619.4, Oct 8, 2012) regarding the
7+
infrared suppression:
8+
9+
Scheme 0, makes full n (4, 8, 12, 16) bits (unsigned) proximity
10+
detection. The range of Scheme 0 proximity count is from 0 to
11+
2^n. Logic 1 of this bit, Scheme 1, makes n-1 (3, 7, 11, 15)
12+
bits (2's complementary) proximity_less_ambient detection. The
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range of Scheme 1 proximity count is from -2^(n-1) to 2^(n-1).
14+
The sign bit is extended for resolutions less than 16. While
15+
Scheme 0 has wider dynamic range, Scheme 1 proximity detection
16+
is less affected by the ambient IR noise variation.
17+
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0 Sensing IR from LED and ambient
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1 Sensing IR from LED with ambient IR rejection

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