lkml.org 
[lkml]   [2019]   [Jun]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v2 0/3] PWM framework: add support referencing PWMs from ACPI
Date
As described in Documentation/firmware-guide/acpi/gpio-properties.rst a
GPIO can be referenced from ACPI ASL _DSD with the "gpios"-property of the
form:

Package () { "gpios", Package () { ref, index, pin, active_low }}

The second patch of this series adds support for specifing a PWM
reference in ASL of the form

Package () { "pwms", Package () { ref, index, pwm-period [, pwm flags]}}

The first patch of this series is necessary to resolve the "ref" in ASL
if the table has been loaded by efivar_ssdt_load() or configfs.

The third patch of this series makes leds-pwm use the ACPI-enabled
PWM framework.

v2:
- fixes by Pavel Machek and Dan Murphy

Nikolaus Voss (3):
ACPI: Resolve objects on host-directed table loads
PWM framework: add support referencing PWMs from ACPI
leds-pwm.c: support ACPI via firmware-node framework

drivers/acpi/acpi_configfs.c | 6 +-
drivers/acpi/acpica/tbxfload.c | 11 ++++
drivers/leds/leds-pwm.c | 45 +++++++------
drivers/pwm/core.c | 113 +++++++++++++++++++++++++++++++++
include/linux/pwm.h | 9 +++
5 files changed, 161 insertions(+), 23 deletions(-)

--
2.17.1

\
 
 \ /
  Last update: 2019-06-12 10:47    [W:0.060 / U:36.700 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site