Add a new generic binding that CAN drivers can be used to specify the max
bit rate supported by a transceiver. This is useful since in some instances
since 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 3 changes:
Switch from having two "max bitrates" to one universal bitrate.
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
dt-bindings: can: fixed-transceiver: Add new CAN fixed transceiver
bindings
dt-bindings: can: m_can: Include reference to new fixed transceiver
binding
can: m_can: Add call to of_can_transceiver_fixed
.../bindings/net/can/fixed-transceiver.txt | 24 +++++++++++
.../devicetree/bindings/net/can/m_can.txt | 9 ++++
drivers/net/can/dev.c | 50 ++++++++++++++++++++++
drivers/net/can/m_can/m_can.c | 2 +
include/linux/can/dev.h | 5 +++
5 files changed, 90 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/can/fixed-transceiver.txt
--
2.9.4.dirty
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