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Subject[PATCH 1/2] dt-bindings: leds: gpio: Add optional retain-state-shutdown property
On BMC systems it's sometimes necessary for a LED to retain its state
across a BMC reset (which is independent of the host system state). Add
a devicetree property to describe this behaviour. The property would
typically be used in conjunction with 'default-state = "keep"'.

Signed-off-by: Andrew Jeffery <>
Documentation/devicetree/bindings/leds/leds-gpio.txt | 3 +++
1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/leds/leds-gpio.txt b/Documentation/devicetree/bindings/leds/leds-gpio.txt
index 76535ca37120..a48dda268f81 100644
--- a/Documentation/devicetree/bindings/leds/leds-gpio.txt
+++ b/Documentation/devicetree/bindings/leds/leds-gpio.txt
@@ -18,6 +18,9 @@ LED sub-node properties:
see Documentation/devicetree/bindings/leds/common.txt
- retain-state-suspended: (optional) The suspend state can be retained.Such
as charge-led gpio.
+- retain-state-shutdown: (optional) Retain the state of the LED on shutdown.
+ Useful in BMC systems, for example when the BMC is rebooted while the host
+ remains up.
- panic-indicator : (optional)
see Documentation/devicetree/bindings/leds/common.txt

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