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Tue, 12 Mar 2019 06:42:09 -0700 (PDT) Received: from localhost ([70.231.7.113]) by smtp.gmail.com with ESMTPSA id q1sm3444268oth.42.2019.03.12.06.42.09 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 12 Mar 2019 06:42:09 -0700 (PDT) Date: Tue, 12 Mar 2019 08:42:08 -0500 From: Rob Herring To: Samuel Holland Subject: Re: [PATCH v3 11/15] [NOT FOR MERGE] dt-bindings: Add a binding for a mailbox-backed interrupt controller Message-ID: <20190312134208.GA2017@bogus> References: <20190302042951.53671-1-samuel@sholland.org> <20190302042951.53671-12-samuel@sholland.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190302042951.53671-12-samuel@sholland.org> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190312_064211_266422_F1341FD0 X-CRM114-Status: GOOD ( 19.01 ) 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: Mark Rutland , devicetree@vger.kernel.org, linux-sunxi@googlegroups.com, Maxime Ripard , Michael Turquette , Jassi Brar , linux-kernel@vger.kernel.org, Stephen Boyd , Chen-Yu Tsai , 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 On Fri, Mar 01, 2019 at 10:29:47PM -0600, Samuel Holland wrote: > 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 > +=================================== Probably never really going to be generic as every mailbox protocol is different. > + > +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. No edge/level control? > +- 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 /Linux/the OS/ > + 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