From: Jean-Jacques Hiblot <jjhiblot@ti.com>
To: <jacek.anaszewski@gmail.com>, <pavel@ucw.cz>,
<robh+dt@kernel.org>, <mark.rutland@arm.com>,
<daniel.thompson@linaro.org>
Cc: <dmurphy@ti.com>, <linux-leds@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
Jean-Jacques Hiblot <jjhiblot@ti.com>
Subject: [PATCH v3 0/3] leds: Add control of the voltage/current regulator to the LED core
Date: Wed, 17 Jul 2019 15:59:45 +0200 [thread overview]
Message-ID: <20190717135948.19340-1-jjhiblot@ti.com> (raw)
This series makes it possible for the LED core to manage the power supply
of a LED. It uses the regulator API to disable/enable the power if when the
LED is turned on/off.
This is especially useful in situations where the LED driver/controller is
not supplying the power.
While at it, throw in a fix for led_set_brightness_sync() so that it can
work with drivers that don't provide brightness_set_blocking()
changes in v3:
- reword device-tree description
- reword commit log
- remove regulator updates from functions used in atomic context. If the
regulator must be updated, it is defered to a workqueue.
- Fix led_set_brightness_sync() to work with the non-blocking function
__led_set_brightness()
changes in v2:
- use devm_regulator_get_optional() to avoid using the dummy regulator and
do some unnecessary work
Jean-Jacques Hiblot (3):
dt-bindings: leds: document the "power-supply" property
leds: Add control of the voltage/current regulator to the LED core
leds: Make led_set_brightness_sync() also use __led_set_brightness()
.../devicetree/bindings/leds/common.txt | 4 ++
drivers/leds/led-class.c | 15 ++++++
drivers/leds/led-core.c | 53 +++++++++++++++++--
drivers/leds/leds.h | 1 +
include/linux/leds.h | 4 ++
5 files changed, 73 insertions(+), 4 deletions(-)
--
2.17.1
next reply other threads:[~2019-07-17 14:00 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-17 13:59 Jean-Jacques Hiblot [this message]
2019-07-17 13:59 ` [PATCH v3 1/3] dt-bindings: leds: document the "power-supply" property Jean-Jacques Hiblot
2019-07-17 13:59 ` [PATCH v3 2/3] leds: Add control of the voltage/current regulator to the LED core Jean-Jacques Hiblot
2019-07-18 12:24 ` Jacek Anaszewski
2019-07-18 13:31 ` Jean-Jacques Hiblot
2019-07-18 17:49 ` Jacek Anaszewski
2019-09-20 12:29 ` Jean-Jacques Hiblot
2019-07-17 13:59 ` [PATCH v3 3/3] leds: Make led_set_brightness_sync() also use __led_set_brightness() Jean-Jacques Hiblot
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