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drivers: serial: stm32: add LPUART support for L0/L4 series

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LPUART (Low-power UART) peripheral is just like ordinary U(S)ART
which lives in a separate clock/power domain.
Therefore already existing code could be reused as is
almost entirely.

Signed-off-by: Ilya Tagunov <tagunil@gmail.com>
This commit is contained in:
Ilya Tagunov 2018-04-11 17:10:47 +03:00 • committed by Kumar Gala
commit 1e6d827a53
9 changed files with 132 additions and 8 deletions
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1
arch/arm/soc/st_stm32/stm32l4/soc.h
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@ -33,6 +33,7 @@
#ifdef CONFIG_SERIAL_HAS_DRIVER
#include <stm32l4xx_ll_usart.h>
#include <stm32l4xx_ll_lpuart.h>
#endif
#ifdef CONFIG_CLOCK_CONTROL_STM32_CUBE