From ca37978497194d55dedd28022403b053ad0d11b2 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Tue, 23 May 2017 15:47:31 +0100 Subject: [PATCH] gpio: of: Add documentation of new sleep standard GPIO specifiers Add documentation of new GPIO specifiers indicating if the state of an output pin should be maintained during sleep/low-power mode. Signed-off-by: Charles Keepax Acked-by: Laxman Dewangan Signed-off-by: Linus Walleij --- Documentation/devicetree/bindings/gpio/gpio.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/gpio/gpio.txt b/Documentation/devicetree/bindings/gpio/gpio.txt index bccb862..802402f 100644 --- a/Documentation/devicetree/bindings/gpio/gpio.txt +++ b/Documentation/devicetree/bindings/gpio/gpio.txt @@ -80,6 +80,8 @@ Optional standard bitfield specifiers for the last cell: https://en.wikipedia.org/wiki/Single-ended_triode - Bit 2: 0 means open-source, 1 means open drain, see: https://en.wikipedia.org/wiki/Open_collector +- Bit 3: 0 means the output should be maintained during sleep/low-power mode + 1 means the output state can be lost during sleep/low-power mode 1.1) GPIO specifier best practices ---------------------------------- -- 2.7.4