forked from Minki/linux
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>
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@ -80,6 +80,8 @@ Optional standard bitfield specifiers for the last cell:
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https://en.wikipedia.org/wiki/Single-ended_triode
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- Bit 2: 0 means open-source, 1 means open drain, see:
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https://en.wikipedia.org/wiki/Open_collector
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- Bit 3: 0 means the output should be maintained during sleep/low-power mode
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1 means the output state can be lost during sleep/low-power mode
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1.1) GPIO specifier best practices
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----------------------------------
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