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Thu, 27 Mar 2025 15:16:35 -0700 (PDT) Received: from stbirv-lnx-1.igp.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id 5614622812f47-3ff051680a8sm105031b6e.1.2025.03.27.15.16.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Mar 2025 15:16:34 -0700 (PDT) From: justin.chen@broadcom.com To: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: florian.fainelli@broadcom.com, conor+dt@kernel.org, krzk+dt@kernel.org, robh@kernel.org, jassisinghbrar@gmail.com, bcm-kernel-feedback-list@broadcom.com, Justin Chen Subject: [PATCH 2/2] dt-bindings: mailbox: Add devicetree binding for bcm74110 mbox Date: Thu, 27 Mar 2025 15:16:28 -0700 Message-Id: <20250327221628.651042-3-justin.chen@broadcom.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250327221628.651042-1-justin.chen@broadcom.com> References: <20250327221628.651042-1-justin.chen@broadcom.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: Justin Chen Add devicetree YAML binding for brcmstb bcm74110 mailbox used for communicating with a co-processor. Signed-off-by: Justin Chen --- .../bindings/mailbox/brcm,bcm74110-mbox.yaml | 68 +++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 Documentation/devicetree/bindings/mailbox/brcm,bcm74110= -mbox.yaml diff --git a/Documentation/devicetree/bindings/mailbox/brcm,bcm74110-mbox.y= aml b/Documentation/devicetree/bindings/mailbox/brcm,bcm74110-mbox.yaml new file mode 100644 index 000000000000..139728a35303 --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/brcm,bcm74110-mbox.yaml @@ -0,0 +1,68 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mailbox/brcm,bcm74110-mbox.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom BCM74110 Mailbox Driver + +maintainers: + - Justin Chen + - Florian Fainelli + +description: Broadcom mailbox driver first introduced with 74110 + +properties: + compatible: + enum: + - brcm,bcm74110-mbox + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + "#mbox-cells": + const: 2 + description: + The first cell is channel type and second cell is shared memory slot + + brcm,mbox_tx: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Mailbox transmit doorbell + + brcm,mbox_rx: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Mailbox receive doorbell + + brcm,mbox_shmem: + $ref: /schemas/types.yaml#/definitions/uint32-array + maxItems: 2 + description: Mailbox shared memory region and size + +required: + - compatible + - reg + - interrupts + - "#mbox-cells" + - brcm,mbox_tx + - brcm,mbox_rx + - brcm,mbox_shmem + +additionalProperties: false + +examples: + - | + #include + + brcm_pmc_mailbox: brcm_pmc_mailbox@a552000 { + #mbox-cells =3D <2>; + compatible =3D "brcm,bcm74110-mbox"; + reg =3D <0xa552000 0x1100>; + brcm,mbox_tx =3D <0x6>; + brcm,mbox_rx =3D <0x7>; + brcm,mbox_shmem =3D <0x3000 0x400>; + interrupts =3D <0x0 0x67 0x4>; + interrupt-parent =3D <&intc>; + }; --=20 2.34.1