diff options
| author | Charles Keepax <ckeepax@opensource.wolfsonmicro.com> | 2017-05-23 16:47:31 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2017-05-29 11:10:07 +0200 |
| commit | ca37978497194d55dedd28022403b053ad0d11b2 (patch) | |
| tree | 99996f9cf6b9bed753e0cbe11c351fdad5e30090 /Documentation | |
| parent | gpio: arizona: Add support for GPIOs that need to be maintained (diff) | |
| download | linux-ca37978497194d55dedd28022403b053ad0d11b2.tar.xz linux-ca37978497194d55dedd28022403b053ad0d11b2.zip | |
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 <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/gpio.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio.txt b/Documentation/devicetree/bindings/gpio/gpio.txt index bccb862398db..802402f6cc5d 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 ---------------------------------- |