Add a new generic binding that CAN drivers can use to specify the max
arbitration and data bit rate supported by a transceiver. This is
useful since in some instances the maximum speeds may be limited by
the transceiver used. However, transceivers may not provide a means
to determine this limitation at runtime. Therefore, create a new binding
that mimics "fixed-link" that allows a user to hardcode the max speeds
that can be used.

Also add support for this new binding in the MCAN driver.

Note this is an optional subnode so even if a driver adds support for
parsing fixed-transceiver the user does not have to define it in their
device tree.

Version 2 changes:
Rename function
Define proper variable default
Drop unit address
Move check to changelink function
Reword commit message
Reword documentation

Franklin S Cooper Jr (4):
  can: dev: Add support for limiting configured bitrate
  can: fixed-transceiver: Add documentation for CAN fixed transceiver
    bindings
  can: m_can: Update documentation to mention new fixed transceiver
    binding
  can: m_can: Add call to of_can_transceiver_fixed

 .../bindings/net/can/fixed-transceiver.txt         | 42 +++++++++++++++
 .../devicetree/bindings/net/can/m_can.txt          | 10 ++++
 drivers/net/can/dev.c                              | 59 ++++++++++++++++++++++
 drivers/net/can/m_can/m_can.c                      |  2 +
 include/linux/can/dev.h                            |  5 ++
 5 files changed, 118 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/can/fixed-transceiver.txt

-- 
2.10.0

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