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Pull LED updates from Jacek Anaszewski:
"LED core fixes and improvements:
- avoid races with workqueue
- Kconfig: pedantic cleanup
- small fixes for Flash class description
leds-lt3593:
- remove unneeded assignment in lt3593_led_probe
- drop pdata handling code
leds-blinkm:
- clean up double assignment to data->i2c_addr
leds-pca955x, leds-pca963x:
- revert ACPI support, as it turned out that there is no evidence
of officially registered ACPI IDs for these devices.
- make use of device property API
leds-as3645a:
- switch to fwnode property API
LED related addition to ACPI documentation:
- document how to refer to LEDs from remote nodes
LED related fix to ALSA line6/toneport driver:
- avoid polluting led_* namespace
And lm3532 driver relocation from MFD to LED subsystem, accompanied by
various improvements and optimizations; it entails also a change in
omap4-droid4-xt894.dts:
- leds: lm3532: Introduce the lm3532 LED driver
- mfd: ti-lmu: Remove LM3532 backlight driver references
- ARM: dts: omap4-droid4: Update backlight dt properties
- dt: lm3532: Add lm3532 dt doc and update ti_lmu doc"
* tag 'leds-for-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
leds: avoid races with workqueue
ALSA: line6: Avoid polluting led_* namespace
leds: lm3532: Introduce the lm3532 LED driver
mfd: ti-lmu: Remove LM3532 backlight driver references
ARM: dts: omap4-droid4: Update backlight dt properties
dt: lm3532: Add lm3532 dt doc and update ti_lmu doc
leds: Small fixes for Flash class description
leds: blinkm: clean up double assignment to data->i2c_addr
leds: pca963x: Make use of device property API
leds: pca955x: Make use of device property API
leds: lt3593: Remove unneeded assignment in lt3593_led_probe
leds: lt3593: drop pdata handling code
leds: pca955x: Revert "Add ACPI support"
leds: pca963x: Revert "Add ACPI support"
drivers: leds: Kconfig: pedantic cleanups
ACPI: Document how to refer to LEDs from remote nodes
leds: as3645a: Switch to fwnode property API
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This converts the plain text documentation to reStructuredText format
and adds it to Sphinx TOC tree.
No essential content change.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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This converts the plain text documentation to reStructuredText format
and adds it to Sphinx TOC tree.
No essential content change.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Document referring to LEDs from remote device nodes, such as from camera
sensors.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
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Instead of port and endpoint properties for representing ports and
endpoints, use the keys of the hierarchical data extension references
when referring to the port and endpoint nodes. Additionally, use "reg"
properties as in Device Tree to specify the number of the port or the
endpoint.
The keys of the port nodes begin with "port" and the keys of the endpoint
nodes begin with "endpoint", both followed by "@" character and the number
of the port or the endpoint.
These changes have the advantage that no ACPI specific properties need to
be added to refer to non-device nodes. Additionally, using the name of the
node instead of an integer property inside the node is easier to parse in
code and easier for humans to understand.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Document that if a port has a single endpoint only, its value shall be
zero. Similarly, if a device object only has a single port, its value
shlla be zero.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Address a few issues in the ACPI _DSD properties graph documentation:
- the extension for port nodes is a data extension (and not property
extension),
- clean up language in port hierarchical data extension definition,
- add examples of port and endpoint packages,
- port property value is the number of the "port" and not the number
of the "port node",
- remove word "individual" from endpoint data node description, it
was redundant,
- remove the extra "The" in the endpoint property description,
- refer to hierarchical data extension keys and targets instead of
first and second package list entries.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Hierarchical data extension 1.1 allows using references as the second
entries of the hierearchical data extension packages. Update the
references and the examples.
The quotes are left in documentation for clarity.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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As part of the hierarchical data extension key naming, introduce numbering
scheme for the nodes that may be referred to using hierarchical data
extension references. This allows iterating over particular kind of nodes
recognised by the node name whilst allowing numbering the nodes, bringing
ACPI to feature parity with DT in this respect.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Add documentation on how to refer to hierarchical data nodes in a
generic way. This brings ACPI to feature parity with Device Tree in
terms of being able to refer to any node in the tree.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Document the use of references into the hierarchical data extension
structure, as well as the use of port and endpoint concepts that are very
similar to those in Devicetree.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Linus Torvalds
Changbin Du
Sakari Ailus