[PATCH v6 0/5] leds: trigger: Add pattern initialization from Device Tree
From: Krzysztof Kozlowski
Date: Fri Jan 04 2019 - 05:09:10 EST
Changes since v5:
1. Drop the "classdev" prefix from helper for getting default pattern
and move the kerneldoc to header file (this was not fixed in v5 by
Changes since v4:
1. Move helper to get default pattern from led-class.c to led-core.c and
rename it (build issue pointed by kbuild robot).
Changes since v3:
1. Add missing EXPORT_SYMBOL_GPL.
2. Put pattern trigger format into common file - shared between
dt-bindings and sysfs.
3. Use array of integers as led-pattern property (since it is bigger change
I did not add Pavel's ack to patch 2/5).
4. Mention ms units for led-pattern bindings.
Changes since v2:
1. Drop Jacek's patches and my "led: triggers: Initialize
LED_INIT_DEFAULT_TRIGGER if trigger is brought after class".
2. Follow Rob's advices about bindings - use "led-pattern" property
and generalize usage of it into to three triggers.
3. New patches (2/5, 4/5 and 5/5).
Changes since v1:
1. Rebase on Jacek's patches.
2. Add patch 3/5 for fixup of Jacek's solution.
3. Drop first two patches from the series (applied).
4. Patch 5/5: Use LED_INIT_DEFAULT_TRIGGER (suggested by Jacek Anaszewski).
5. Patch 5/5: Return-on-error and log warning (suggested by Pavel Machek).
Krzysztof Kozlowski (5):
dt-bindings: leds: Add pattern initialization from Device Tree
leds: Add helper for getting default pattern from Device Tree
leds: trigger: pattern: Add pattern initialization from Device Tree
leds: trigger: oneshot: Add initialization from Device Tree
leds: trigger: timer: Add initialization from Device Tree
.../ABI/testing/sysfs-class-led-trigger-pattern | 51 +----------
Documentation/devicetree/bindings/leds/common.txt | 12 +++
.../bindings/leds/leds-trigger-pattern.txt | 49 +++++++++++
drivers/leds/led-core.c | 32 +++++++
drivers/leds/trigger/ledtrig-oneshot.c | 38 ++++++++-
drivers/leds/trigger/ledtrig-pattern.c | 99 +++++++++++++++++-----
drivers/leds/trigger/ledtrig-timer.c | 34 ++++++++
include/linux/leds.h | 13 +++
8 files changed, 259 insertions(+), 69 deletions(-)
create mode 100644 Documentation/devicetree/bindings/leds/leds-trigger-pattern.txt