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([2401:4900:1c07:5748:721b:a500:103e:1bad]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2985c2377e0sm261015ad.23.2025.11.12.12.19.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Nov 2025 12:20:03 -0800 (PST) From: Prabhakar X-Google-Original-From: Prabhakar To: =?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiner Kallweit , Russell King , Geert Uytterhoeven , Magnus Damm Cc: linux-renesas-soc@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Prabhakar , Biju Das , Fabrizio Castro , Lad Prabhakar Subject: [PATCH net-next 1/2] dt-bindings: net: pcs: renesas,rzn1-miic: Add renesas,miic-phylink-active-low property Date: Wed, 12 Nov 2025 20:19:36 +0000 Message-ID: <20251112201937.1336854-2-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251112201937.1336854-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20251112201937.1336854-1-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 Add the boolean DT property `renesas,miic-phylink-active-low` to the RZN1 MIIC binding schema. This property allows configuring the active level of the PHY-link signals used by the Switch, EtherCAT, and SERCOS III interfaces. The signal polarity is controlled by fields in the MIIC_PHYLINK register: - SWLNK[3:0]: configures the Switch interface link signal level 0 - Active High 1 - Active Low - CATLNK[6:4]: configures the EtherCAT interface link signal level 0 - Active Low 1 - Active High - S3LNK[9:8]: configures the SERCOS III interface link signal level 0 - Active Low 1 - Active High When the `renesas,miic-phylink-active-low` property is present, the PHY-link signal is configured as active-low. When omitted, the signal defaults to active-high. Signed-off-by: Lad Prabhakar --- .../devicetree/bindings/net/pcs/renesas,rzn1-miic.yaml | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/net/pcs/renesas,rzn1-miic.ya= ml b/Documentation/devicetree/bindings/net/pcs/renesas,rzn1-miic.yaml index 3adbcf56d2be..825ae8a91e8b 100644 --- a/Documentation/devicetree/bindings/net/pcs/renesas,rzn1-miic.yaml +++ b/Documentation/devicetree/bindings/net/pcs/renesas,rzn1-miic.yaml @@ -86,6 +86,13 @@ patternProperties: and include/dt-bindings/net/renesas,r9a09g077-pcs-miic.h for RZ/= N2H, RZ/T2H SoCs. $ref: /schemas/types.yaml#/definitions/uint32 =20 + renesas,miic-phylink-active-low: + type: boolean + description: Indicates that the PHY-link signal provided by the Et= hernet switch, + EtherCAT, or SERCOS3 interface is active low. When present, this= property + sets the corresponding signal polarity to active low. When omitt= ed, the signal + defaults to active high. + required: - reg - renesas,miic-input --=20 2.43.0