lkml.org 
[lkml]   [2014]   [Oct]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v5 2/2] power: reset: document LTC2952 poweroff support
Date
From: René Moll <linux@r-moll.nl>

Signed-off-by: René Moll <linux@r-moll.nl>
Signed-off-by: Tjerk Hofmeijer <tjerk.hofmeijer@xsens.com>
Signed-off-by: Frans Klaver <frans.klaver@xsens.com>
---
.../bindings/power/reset/ltc2952-poweroff.txt | 30 ++++++++++++++++++++++
1 file changed, 30 insertions(+)
create mode 100644 Documentation/devicetree/bindings/power/reset/ltc2952-poweroff.txt

diff --git a/Documentation/devicetree/bindings/power/reset/ltc2952-poweroff.txt b/Documentation/devicetree/bindings/power/reset/ltc2952-poweroff.txt
new file mode 100644
index 0000000..80e58cd
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/reset/ltc2952-poweroff.txt
@@ -0,0 +1,30 @@
+Binding for the LTC2952 PowerPath controller
+
+This chip is used to externally trigger a system shut down. Once the trigger
+has been sent, the chip's watchdog has to be reset to gracefully shut down.
+A full power down can be triggered via the poweroff signal.
+
+Required properties:
+
+- compatible: Should contain: "lltc,ltc2952"
+- watchdog-gpios: phandle + gpio-specifier for the GPIO connected to the
+ chip's watchdog line
+- poweroff-gpios: phandle + gpio-specifier for the GPIO connected to the
+ chip's kill line
+
+Optional properties:
+
+- trigger-gpios: phandle + gpio-specifier for the GPIO connected to the
+ chip's trigger line. If this property is not set, the
+ trigger function is ignored and the chip is kept alive
+ until an explicit kill signal is received
+
+Example:
+
+ltc2952 {
+ compatible = "lltc,ltc2952";
+
+ trigger-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
+ watchdog-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
+ poweroff-gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
+};
--
2.1.0
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2014-10-13 10:42    [W:0.052 / U:0.032 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site