Add a new Kconfig symbol (UART_SILABS_USART_ASYNC) to enable the async
API for the Silabs USART driver.
It is needed because the symbol (UART_ASYNC_API) is shared between uart
driver. In the case that you have multiple UART drivers enabled,
condition to enable async API for different uart driver may differ.
Signed-off-by: Martin Hoff <martin.hoff@silabs.com>
Make use of pm_device_driver_init to perform driver initialization.
Implement PM suspend and resume, which performs the following actions:
* Enables/disables the USART
* Gates the USART clock
* Configures USART pins
Signed-off-by: Aksel Skauge Mellbye <aksel.mellbye@silabs.com>
Reuse the same peripheral init function between init and the
runtime configure API. Remove redundant enable calls, the init
function enables the USART internally.
Signed-off-by: Aksel Skauge Mellbye <aksel.mellbye@silabs.com>
Split the USART driver into separate implementations for Silabs Series 2
and Series 0/1 boards. This change improves maintainability (especially
with the support of pin-ctrl and clock-ctrl on series 2 boards).
Signed-off-by: Martin Hoff <martin.hoff@silabs.com>
Martin Hoff
Aksel Skauge Mellbye