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Mon, 02 Dec 2019 02:39:10 -0800 Received: from xsj-pvapsmtp01 (smtp2.xilinx.com [149.199.38.66]) by xsj-smtp-dlp1.xlnx.xilinx.com (8.13.8/8.13.1) with ESMTP id xB2Ad5L1009757; Mon, 2 Dec 2019 02:39:05 -0800 Received: from [172.19.2.91] (helo=xsjjollys50.xilinx.com) by xsj-pvapsmtp01 with esmtp (Exim 4.63) (envelope-from ) id 1ibj6f-000805-FY; Mon, 02 Dec 2019 02:39:05 -0800 From: Rajan Vaja To: sre@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, michal.simek@xilinx.com, jolly.shah@xilinx.com, tejas.patel@xilinx.com Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Rajan Vaja Subject: [PATCH v3 1/2] dt-bindings: power: reset: xilinx: Add bindings for ipi mailbox Date: Mon, 2 Dec 2019 02:38:50 -0800 Message-Id: <1575283131-9339-2-git-send-email-rajan.vaja@xilinx.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1575283131-9339-1-git-send-email-rajan.vaja@xilinx.com> References: <1574412258-17988-1-git-send-email-rajan.vaja@xilinx.com> <1575283131-9339-1-git-send-email-rajan.vaja@xilinx.com> X-RCIS-Action: ALLOW X-TM-AS-Product-Ver: IMSS-7.1.0.1224-8.2.0.1013-23620.005 X-TM-AS-User-Approved-Sender: Yes;Yes X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:149.199.60.83; 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Ip=[149.199.60.83]; Helo=[xsj-pvapsmtpgw01] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR02MB5228 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add IPI mailbox property and its example in xilinx zynqmp-power documentation. Signed-off-by: Rajan Vaja Reviewed-by: Rob Herring --- Changes in v2: - Correct order of tx and rx in mbox-names property. - Add interrupts property in example. --- .../bindings/power/reset/xlnx,zynqmp-power.txt | 43 ++++++++++++++++++++-- 1 file changed, 40 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/power/reset/xlnx,zynqmp-power.txt b/Documentation/devicetree/bindings/power/reset/xlnx,zynqmp-power.txt index d366f1e..0d74987 100644 --- a/Documentation/devicetree/bindings/power/reset/xlnx,zynqmp-power.txt +++ b/Documentation/devicetree/bindings/power/reset/xlnx,zynqmp-power.txt @@ -8,18 +8,55 @@ Required properties: - compatible: Must contain: "xlnx,zynqmp-power" - interrupts: Interrupt specifier -------- -Example -------- +Optional properties: + - mbox-names : Name given to channels seen in the 'mboxes' property. + "tx" - Mailbox corresponding to transmit path + "rx" - Mailbox corresponding to receive path + - mboxes : Standard property to specify a Mailbox. Each value of + the mboxes property should contain a phandle to the + mailbox controller device node and an args specifier + that will be the phandle to the intended sub-mailbox + child node to be used for communication. See + Documentation/devicetree/bindings/mailbox/mailbox.txt + for more details about the generic mailbox controller + and client driver bindings. Also see + Documentation/devicetree/bindings/mailbox/ \ + xlnx,zynqmp-ipi-mailbox.txt for typical controller that + is used to communicate with this System controllers. + +-------- +Examples +-------- + +Example with interrupt method: + +firmware { + zynqmp_firmware: zynqmp-firmware { + compatible = "xlnx,zynqmp-firmware"; + method = "smc"; + + zynqmp_power: zynqmp-power { + compatible = "xlnx,zynqmp-power"; + interrupts = <0 35 4>; + }; + }; +}; + +Example with IPI mailbox method: firmware { + zynqmp_firmware: zynqmp-firmware { compatible = "xlnx,zynqmp-firmware"; method = "smc"; zynqmp_power: zynqmp-power { compatible = "xlnx,zynqmp-power"; + interrupt-parent = <&gic>; interrupts = <0 35 4>; + mboxes = <&ipi_mailbox_pmu0 0>, + <&ipi_mailbox_pmu0 1>; + mbox-names = "tx", "rx"; }; }; };