dt-bindings: can: renesas,rcar-canfd: Document R-Car V4M support

Document support for the CAN-FD Interface on the Renesas R-Car V4M
(R8A779H0) SoC, which supports up to four channels.

The CAN-FD module on R-Car V4M is very similar to the one on R-Car V4H,
but differs in some hardware parameters, as reflected by the Parameter
Status Information part of the Global IP Version Register.  However,
none of this parameterization should have any impact on the driver, as
the driver does not access any register that is impacted by the
parameterization (except for the number of channels).

Signed-off-by: Duy Nguyen <duy.nguyen.rh@renesas.com>
[geert: Clarify R-Car V4M differences]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms@kernel.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/68b5f910bef89508e3455c768844ebe859d6ff1d.1722520779.git.geert+renesas@glider.be
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Duy Nguyen 2024-08-01 16:03:17 +02:00 committed by Marc Kleine-Budde
parent cff69f72d3
commit ced52c6ed2

View File

@ -32,6 +32,7 @@ properties:
- enum:
- renesas,r8a779a0-canfd # R-Car V3U
- renesas,r8a779g0-canfd # R-Car V4H
- renesas,r8a779h0-canfd # R-Car V4M
- const: renesas,rcar-gen4-canfd # R-Car Gen4
- items:
@ -163,14 +164,23 @@ allOf:
maxItems: 1
- if:
not:
properties:
compatible:
contains:
const: renesas,rcar-gen4-canfd
properties:
compatible:
contains:
const: renesas,r8a779h0-canfd
then:
patternProperties:
"^channel[2-7]$": false
"^channel[5-7]$": false
else:
if:
not:
properties:
compatible:
contains:
const: renesas,rcar-gen4-canfd
then:
patternProperties:
"^channel[2-7]$": false
unevaluatedProperties: false