[PATCH v2 4/5] gpio: of: Add documentation of new sleep standard GPIO specifiers

[Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx>]

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 <ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
---

New to the series.

Thanks,
Charles

 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 bccb8623..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
 ----------------------------------
-- 
2.1.4

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