[PATCH v3 1/4] dt-bindings: can: renesas,rcar-canfd: Specify reset-names
From: Prabhakar <prabhakar.csengg@gmail.com>
Date: 2026-01-09 12:51:34
Also in:
linux-can, linux-renesas-soc, lkml
Subsystem:
can network drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Marc Kleine-Budde, Vincent Mailhol, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Specify the expected reset-names for the Renesas CAN-FD controller on
RZ/G2L and RZ/G3E SoCs.
The reset names rstp_n and rstc_n are defined in the SoC hardware manual
and are already used by the driver since commit 76e9353a80e9 ("can:
rcar_canfd: Add support for RZ/G2L family"). The reset-names property
existed previously but was dropped by commit 466c8ef7b66b ("dt-bindings:
can: renesas,rcar-canfd: Simplify the conditional schema").
Restore and constrain reset-names in the binding so DT schema checks
match the actual hardware requirements and driver expectations.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
v2->v3:
- Updated commit message to clarify that reset-names existed previously
but was dropped.
v1->v2:
- Moved reset-names to top-level properties.
---
.../bindings/net/can/renesas,rcar-canfd.yaml | 33 +++++++++++--------
1 file changed, 19 insertions(+), 14 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml b/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml
index e129bdceef84..9bfd4f44e4d4 100644
--- a/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml
+++ b/Documentation/devicetree/bindings/net/can/renesas,rcar-canfd.yaml@@ -122,6 +122,11 @@ properties: resets: true + reset-names: + items: + - const: rstp_n + - const: rstc_n + renesas,no-can-fd: $ref: /schemas/types.yaml#/definitions/flag description:
@@ -195,13 +200,6 @@ allOf: minItems: 2 maxItems: 2 - reset-names: - minItems: 2 - maxItems: 2 - - required: - - reset-names - - if: properties: compatible:
@@ -239,13 +237,6 @@ allOf: minItems: 2 maxItems: 2 - reset-names: - minItems: 2 - maxItems: 2 - - required: - - reset-names - - if: properties: compatible:
@@ -299,6 +290,20 @@ allOf: properties: renesas,no-can-fd: false + - if: + properties: + compatible: + contains: + enum: + - renesas,r9a09g047-canfd + - renesas,rzg2l-canfd + then: + required: + - reset-names + else: + properties: + reset-names: false + unevaluatedProperties: false examples:
--
2.52.0