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 1/3] dt-bindings: leds: document the "power-supply" property
Date: Wed, 17 Jul 2019 15:59:46 +0200 [thread overview]
Message-ID: <20190717135948.19340-2-jjhiblot@ti.com> (raw)
In-Reply-To: <20190717135948.19340-1-jjhiblot@ti.com>
Sometimes LEDs are powered by a voltage/current regulator. Describing it
in the device-tree makes it possible for the LED core to enable/disable it
when needed.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Dan Murphy <dmurphy@ti.com>
---
Documentation/devicetree/bindings/leds/common.txt | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/leds/common.txt b/Documentation/devicetree/bindings/leds/common.txt
index 70876ac11367..f496ec1c1542 100644
--- a/Documentation/devicetree/bindings/leds/common.txt
+++ b/Documentation/devicetree/bindings/leds/common.txt
@@ -61,6 +61,9 @@ Optional properties for child nodes:
- panic-indicator : This property specifies that the LED should be used,
if at all possible, as a panic indicator.
+- power-supply : Is a phandle to a voltage/current regulator used to to power
+ the LED.
+
- trigger-sources : List of devices which should be used as a source triggering
this LED activity. Some LEDs can be related to a specific
device and should somehow indicate its state. E.g. USB 2.0
@@ -106,6 +109,7 @@ gpio-leds {
label = "Status";
linux,default-trigger = "heartbeat";
gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
+ power-supply = <&led_regulator>;
};
usb {
--
2.17.1
next prev parent 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 [PATCH v3 0/3] leds: Add control of the voltage/current regulator to the LED core Jean-Jacques Hiblot
2019-07-17 13:59 ` Jean-Jacques Hiblot [this message]
2019-07-17 13:59 ` [PATCH v3 2/3] " 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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