linux-toradex.git/drivers/acpi/device_sysfs.c, branch v4.10

ACPI / property: Hierarchical properties support update

2016-11-24T01:43:47+00:00

The definition document of the Hierarchical Properties Extension UUID
for _DSD has been changed recently to allow local references to be
used as sub-node link targets (previously, it only allowed strings to
be used for that purpose).

Update the code in drivers/acpi/property.c to reflect that change.

Link: http://www.uefi.org/sites/default/files/resources/_DSD-hierarchical-data-extension-UUID-v1.1.pdf
Tested-by: Mika Westerberg 
Signed-off-by: Rafael J. Wysocki

ACPI / device_sysfs: Clean up checkpatch errors

2016-05-04T21:47:32+00:00

Cleaning up two existing checkpatch errors (and 2 warnings) in
device_sysfs.c since the file is being changed.

The change in acpi_device_setup_files() is changing spaces to a tab.

Signed-off-by: Betty Dall 
Signed-off-by: Rafael J. Wysocki

ACPI / device_sysfs: Change _SUN and _STA show functions error return to EIO

2016-05-04T21:47:31+00:00

The error return from a sysfs show function is passed up through
the call chain and visible as the return from the read system call.
The show functions for the _STA and _SUN object currently return
-ENODEV. This patch changes the return to -EIO. ENODEV makes less
sense since the "device' exists or there wouldn't be a sysfs file.

Signed-off-by: Betty Dall 
Signed-off-by: Rafael J. Wysocki

ACPI / device_sysfs: Add sysfs support for _HRV hardware revision

2016-05-04T21:47:31+00:00

The ACPI _HRV object on the device is used to supply Linux with the
device's hardware revision. This is an optional object. Add sysfs support
for the _HRV object if it exists on the device.

This change allows users to easily find the hardware version of non-PCI
hardware by looking at the sysfs 'hrv' file. It is most useful for
non-PCI devices because lspci can list the hardware version for PCI
devices.

Signed-off-by: Betty Dall 
Signed-off-by: Rafael J. Wysocki

ACPI / property: avoid leaking format string into kobject name

2016-01-08T00:01:41+00:00

The dn->name is expected to be used as a literal, so add the missing
"%s".

Fixes: 263b4c1a64bc (ACPI / property: Expose data-only subnodes via sysfs)
Signed-off-by: Kees Cook 
Signed-off-by: Rafael J. Wysocki

ACPI / property: Expose data-only subnodes via sysfs

2015-09-14T23:47:34+00:00

Add infrastructure needed to expose data-only subnodes of ACPI
device objects introduced previously via sysfs.

Each data-only subnode is represented as a sysfs directory under
the directory corresponding to its parent object (a device or a
data-only subnode).  Each of them has a "path" attribute (containing
the full ACPI namespace path to the object the subnode data come from)
at this time.

Signed-off-by: Rafael J. Wysocki 
Tested-by: Mika Westerberg

ACPI / scan: Move sysfs-related device code to a separate file

2015-07-17T20:53:43+00:00

To reduce the size of scan.c and improve the readability of it, move
all code related to device sysfs, modalias creation etc. to a new
file called device_sysfs.c.

Signed-off-by: Rafael J. Wysocki