tree 23ff3b22c7edd4a70a8adac4b1e148c58517c717
parent afc09243e1148ad1cb78bb8a67a63bc39b92c7c8
author Patrick Delaunay <patrick.delaunay@foss.st.com> 1646231348 +0100
committer Yann Gautier <yann.gautier@st.com> 1663939063 +0200

refactor(st-uart): compute the over sampling dynamically

The parameter over_sampling of stm32_uart_init_s is not required
as it can be computed dynamically from clock rate of the serial
device and the requested baudrate.

Oversampling by 8 is allowed only for higher speed
(up to clock_rate / 8) to reduce the maximum receiver tolerance
to clock deviation.

This patch update the driver, the serial init struct and the
only user, the stm32cubeprogrammer over uart support.

Change-Id: I422731089730a288defeb7fa49886db65d0902b2
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>