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drivers: can: remove CAN_HAS_CANFD Kconfig helper

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Remove the CAN_HAS_CANFD Kconfig helper symbol in order to allow enabling
CAN-FD support in the API regardless of driver support.

Change default to CAN-FD support being disabled and have samples and tests
that require CAN-FD support turn it on. This aligns the default
configuration across CAN controller drivers regardless of their
capabilities.

The rationale behind this is that we are starting to see MCUs with multiple
CAN controllers, some CAN-FD compatible, some not (e.g. NXP i.MX RT1060 and
FPGAs). Automatically enabling CAN-FD support based on the presence of a
CAN-FD capable CAN controller leads to different application default
settings based on the CAN controller(s) in use.

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
This commit is contained in:
Henrik Brix Andersen 2023-01-24 12:08:06 +01:00 • committed by Fabio Baltieri
commit 55d0ffa874
9 changed files with 3 additions and 15 deletions
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drivers/can/Kconfig.mcan
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@ -5,7 +5,6 @@
config CAN_MCAN
bool
select CAN_HAS_CANFD
help
Enable Bosch m_can driver.
This driver supports the Bosch m_can IP. This IP is built into the