From: martin.blumenstingl@googlemail.com (Martin Blumenstingl)
To: linus-amlogic@lists.infradead.org
Subject: [PATCH 0/1] ARM64: defconfig: add support for PWM LEDs
Date: Sun, 19 Feb 2017 23:23:24 +0100 [thread overview]
Message-ID: <20170219222325.7085-1-martin.blumenstingl@googlemail.com> (raw)
Some ARM64 boards (such as the Khadas VIM and many other Amlogic based
devices) have one of the LEDs connected through a PWM controller. This
allows dimming the LED.
The ARM64 defconfig does not support the leds-pwm driver yet. Enabling
that also means that we have to enable the default-on LED trigger.
leds-gpio has a (trigger specific) "default-state" property which can
be used to set the default state, while with leds-pwm this has to be
configured using the default-on trigger.
Martin Blumenstingl (1):
ARM64: defconfig: enable the leds-pwm driver and default-on trigger
arch/arm64/configs/defconfig | 2 ++
1 file changed, 2 insertions(+)
--
2.11.1
next reply other threads:[~2017-02-19 22:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-19 22:23 Martin Blumenstingl [this message]
2017-02-19 22:23 ` [PATCH 1/1] ARM64: defconfig: enable the leds-pwm driver and default-on trigger Martin Blumenstingl
2017-03-03 18:43 ` Kevin Hilman
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