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Fri, 1 Mar 2019 23:29:58 -0500 (EST) From: Samuel Holland To: Maxime Ripard , Chen-Yu Tsai , Jassi Brar , Michael Turquette , Stephen Boyd , Rob Herring , Mark Rutland Subject: [PATCH v3 11/15] [NOT FOR MERGE] dt-bindings: Add a binding for a mailbox-backed interrupt controller Date: Fri, 1 Mar 2019 22:29:47 -0600 Message-Id: <20190302042951.53671-12-samuel@sholland.org> X-Mailer: git-send-email 2.19.2 In-Reply-To: <20190302042951.53671-1-samuel@sholland.org> References: <20190302042951.53671-1-samuel@sholland.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190301_203005_513585_73C6C8F8 X-CRM114-Status: GOOD ( 10.38 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Samuel Holland , linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org This is a somewhat generic binding for an interrupt controller/forwarder implemented in firmware and communicated with using a mailbox. Signed-off-by: Samuel Holland --- .../interrupt-controller/mbox-intc.txt | 33 +++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/mbox-intc.txt diff --git a/Documentation/devicetree/bindings/interrupt-controller/mbox-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/mbox-intc.txt new file mode 100644 index 000000000000..a0eb7904ca83 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/mbox-intc.txt @@ -0,0 +1,33 @@ +Mailbox-backed Interrupt Controller +=================================== + +This binding represents an interrupt controller implemented in firmware, +that uses a mailbox channel to signal and acknowledge interrupts. + +Device Node: +============ + +Required properties: +-------------------- +- compatible: Must be one of the following strings: + - allwinner,sunxi-msgbox-intc +- interrupt-controller: Signifies that this node is an interrupt controller. +- #interrupt-cells: Must be 1. +- mboxes: phandle for the mailbox controller and channel + specifier. If the mailbox controller has unidirectional + channels, two entries are required (see below). +- mbox-names: Only required for unidirectional mailbox channels. In + that case, it must contain the strings "tx" and "rx" + (where "tx" and "rx" are from Linux's perspective, not + the direction the interrupts are traveling). + +Example: +-------- + + msgbox_intc: interrupt-controller { + compatible = "allwinner,sunxi-msgbox-intc"; + interrupt-controller; + #interrupt-cells = <1>; + mboxes = <&msgbox 6>, <&msgbox 7>; + mbox-names = "tx", "rx"; + }; -- 2.19.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel