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3f467ebe9e
DT specific handling is replaced by firmware-node abstration to support
ACPI specification of PWM LEDS.
Example ASL:
Device (PWML)
{
Name (_HID, "PRP0001")
Name (_DSD, Package () {
ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
Package () { Package () {"compatible",
Package () {"pwm-leds"}}}})
Device (PWL0)
{
Name (_HID, "PRP0001")
Name (_DSD, Package () {
ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
Package () {
Package () {"label", "alarm-led"},
Package () {"pwms", Package ()
{\_SB_.PCI0.PWM, 0, 600000, 0}},
Package () {"linux,default-state", "off"}}})
}
}
Signed-off-by: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.