Fabrice Gasnier 2aa1bbb21f serial: stm32: add FIFO threshold configuration ...

Add the support for two optional DT properties, to configure RX and TX
FIFO thresholds:
- rx-threshold
- tx-threshold
This replaces hard-coded 8 bytes threshold. Keep 8 as the default value if
not specified, for backward compatibility.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Signed-off-by: Erwan Le Ray <erwan.leray@foss.st.com>

Changes in v2:
Change added properties naming as proposed by Rob Herring.
Link: https://lore.kernel.org/r/20210413174015.23011-5-erwan.leray@foss.st.com

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2021-04-22 12:11:25 +02:00

7.6 KiB

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