serial: stm32: add wakeup mechanism

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Add support for wake-up from low power modes. This extends stm32f7.
Introduce new compatible for stm32h7 to manage wake-up capability.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Bich Hemon <bich.hemon@st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Fabrice Gasnier 2017-07-13 15:08:30 +00:00 • committed by Greg Kroah-Hartman

parent 20e4cfc9c1

commit 270e5a74fe

2 changed files with 118 additions and 1 deletions

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90

drivers/tty/serial/stm32-usart.c

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29

drivers/tty/serial/stm32-usart.h

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