fix: only call _validate() when strict=True (#2062)

* fix: only call _validate() when strict=True

_validate() was called unconditionally, rejecting brp values > 64
even when strict=False. This is too restrictive for some peripherals
like FYSETC UCAN which support brp up to 1024.

Only call _validate() when strict=True, matching the behavior
of _restrict_to_minimum_range().

Fixes #2061

* add news fragment

---------

Co-authored-by: 小慧 <xiaohui@192.168.5.97>
Co-authored-by: zariiii9003 <52598363+zariiii9003@users.noreply.github.com>

Author: 3 people

can/bit_timing.py

@@ -74,8 +74,8 @@ def __init__(
             "sjw": sjw,
             "nof_samples": nof_samples,
         }
-        self._validate()
         if strict:
+            self._validate()
             self._restrict_to_minimum_range()
 
     def _validate(self) -> None:

doc/changelog.d/2061.fixed.rst

@@ -0,0 +1 @@
+Fix ``can.BitTiming`` rejecting bit rate prescaler values greater than 64 even when ``strict=False``.