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Wed, 14 Jan 2026 07:45:28 -0800 (PST) From: Prabhakar X-Google-Original-From: Prabhakar To: Marc Kleine-Budde , Vincent Mailhol , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , Magnus Damm , linux-can@vger.kernel.org, devicetree@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Prabhakar , Biju Das , Fabrizio Castro , Lad Prabhakar , Krzysztof Kozlowski Subject: [PATCH v4 1/4] dt-bindings: can: renesas,rcar-canfd: Specify reset-names Date: Wed, 14 Jan 2026 15:45:22 +0000 Message-ID: <20260114154525.3169992-2-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260114154525.3169992-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20260114154525.3169992-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Lad Prabhakar 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 Reviewed-by: Krzysztof Kozlowski Reviewed-by: Geert Uytterhoeven --- v3->v4: - Added Reviewed-by tag. 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.y= aml 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: =20 resets: true =20 + 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 =20 - reset-names: - minItems: 2 - maxItems: 2 - - required: - - reset-names - - if: properties: compatible: @@ -239,13 +237,6 @@ allOf: minItems: 2 maxItems: 2 =20 - reset-names: - minItems: 2 - maxItems: 2 - - required: - - reset-names - - if: properties: compatible: @@ -299,6 +290,20 @@ allOf: properties: renesas,no-can-fd: false =20 + - if: + properties: + compatible: + contains: + enum: + - renesas,r9a09g047-canfd + - renesas,rzg2l-canfd + then: + required: + - reset-names + else: + properties: + reset-names: false + unevaluatedProperties: false =20 examples: --=20 2.52.0