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dt-bindings: can: rcar_can: document r8a77990 support 

Document the support for rcar_can on R8A77990 SoC devices.
Add R8A77990 to the list of SoCs which require the "assigned-clocks"
and "assigned-clock-rates" properties.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Marek Vasut 2018-11-18 18:30:56 +01:00 committed by Geert Uytterhoeven
parent ddc8cd7d92
commit 3bbda1431b
1 changed files with 3 additions and 1 deletions
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Documentation/devicetree/bindings/net/can/rcar_can.txt
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@ -17,6 +17,7 @@ Required properties:
"renesas,can-r8a7795" if CAN controller is a part of R8A7795 SoC.
"renesas,can-r8a7796" if CAN controller is a part of R8A7796 SoC.
"renesas,can-r8a77965" if CAN controller is a part of R8A77965 SoC.
"renesas,can-r8a77990" if CAN controller is a part of R8A77990 SoC.
"renesas,rcar-gen1-can" for a generic R-Car Gen1 compatible device.
"renesas,rcar-gen2-can" for a generic R-Car Gen2 or RZ/G1
compatible device.
@ -33,7 +34,8 @@ Required properties:
- pinctrl-0: pin control group to be used for this controller.
- pinctrl-names: must be "default".
Required properties for R8A774A1, R8A774C0, R8A7795, R8A7796 and R8A77965:
Required properties for R8A774A1, R8A774C0, R8A7795, R8A7796, R8A77965,
and R8A77990:
For the denoted SoCs, "clkp2" can be CANFD clock. This is a div6 clock and can
be used by both CAN and CAN FD controller at the same time. It needs to be
scaled to maximum frequency if any of these controllers use it. This is done