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dt-bindings: net: can: add "st,can-secondary" property

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On the stm32f7 Socs the can peripheral can be in single or dual
configuration. In the dual configuration, in turn, it can be in primary
or secondary mode. The addition of the 'st,can-secondary' property allows
you to specify this mode in the dual configuration.

CAN peripheral nodes in single configuration contain neither
"st,can-primary" nor "st,can-secondary".

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/all/20230427204540.3126234-2-dario.binacchi@amarulasolutions.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Dario Binacchi 2023-04-27 22:45:36 +02:00 committed by Marc Kleine-Budde
parent 4920bded3e
commit caf78f0f49
1 changed files with 15 additions and 4 deletions
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19
Documentation/devicetree/bindings/net/can/st,stm32-bxcan.yaml
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@ -21,11 +21,22 @@ properties:
st,can-primary:
description:
Primary and secondary mode of the bxCAN peripheral is only relevant
if the chip has two CAN peripherals. In that case they share some
of the required logic.
Primary mode of the bxCAN peripheral is only relevant if the chip has
two CAN peripherals in dual CAN configuration. In that case they share
some of the required logic.
Not to be used if the peripheral is in single CAN configuration.
To avoid misunderstandings, it should be noted that ST documentation
uses the terms master/slave instead of primary/secondary.
uses the terms master instead of primary.
type: boolean
st,can-secondary:
description:
Secondary mode of the bxCAN peripheral is only relevant if the chip
has two CAN peripherals in dual CAN configuration. In that case they
share some of the required logic.
Not to be used if the peripheral is in single CAN configuration.
To avoid misunderstandings, it should be noted that ST documentation
uses the terms slave instead of secondary.
type: boolean
reg: