From patchwork Fri Aug 30 20:53:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 11123527 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9B7BB14DE for ; Fri, 30 Aug 2019 08:55:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 81CCC21726 for ; Fri, 30 Aug 2019 08:55:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727603AbfH3IzR (ORCPT ); Fri, 30 Aug 2019 04:55:17 -0400 Received: from inva021.nxp.com ([92.121.34.21]:45884 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726495AbfH3IzQ (ORCPT ); Fri, 30 Aug 2019 04:55:16 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 5B1152003F4; Fri, 30 Aug 2019 10:55:14 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 571362001C0; Fri, 30 Aug 2019 10:54:56 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id EF46E40281; Fri, 30 Aug 2019 16:54:41 +0800 (SGT) From: Anson Huang To: robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, catalin.marinas@arm.com, will@kernel.org, dmitry.torokhov@gmail.com, aisheng.dong@nxp.com, ulf.hansson@linaro.org, fugang.duan@nxp.com, peng.fan@nxp.com, daniel.baluta@nxp.com, leonard.crestez@nxp.com, olof@lixom.net, mripard@kernel.org, arnd@arndb.de, jagan@amarulasolutions.com, bjorn.andersson@linaro.org, dinguyen@kernel.org, marcin.juszkiewicz@linaro.org, hsweeten@visionengravers.com, tglx@linutronix.de, gregkh@linuxfoundation.org, stefan@agner.ch, ronald@innovation.ch, ping.bai@nxp.com, m.felsch@pengutronix.de, andriy.shevchenko@linux.intel.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-input@vger.kernel.org Cc: Linux-imx@nxp.com Subject: [PATCH 1/5] dt-bindings: fsl: scu: add scu power key binding Date: Fri, 30 Aug 2019 16:53:45 -0400 Message-Id: <1567198429-27886-1-git-send-email-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.7.4 X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org NXP i.MX8QXP is an ARMv8 SoC with a Cortex-M4 core inside as system controller, the system controller is in charge of system power, clock and power key event etc. management, Linux kernel has to communicate with system controller via MU (message unit) IPC to get power key event, add binding doc for i.MX system controller power key driver. Signed-off-by: Anson Huang --- .../devicetree/bindings/arm/freescale/fsl,scu.txt | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt index c149fad..001d0b7 100644 --- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt +++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt @@ -157,6 +157,17 @@ Required properties: Optional properties: - timeout-sec: contains the watchdog timeout in seconds. +Power key bindings based on SCU Message Protocol +------------------------------------------------------------ + +Required properties: +- compatible: should be: + "fsl,imx8qxp-sc-pwrkey" + followed by "fsl,imx-sc-pwrkey"; +- linux,keycodes: See Documentation/devicetree/bindings/input/keys.txt +Optional Properties: +- wakeup-source: See Documentation/devicetree/bindings/power/wakeup-source.txt + Example (imx8qxp): ------------- aliases { @@ -220,6 +231,13 @@ firmware { compatible = "fsl,imx8qxp-sc-rtc"; }; + scu_pwrkey: scu-pwrkey { + compatible = "fsl,imx8qxp-sc-pwrkey", "fsl,imx-sc-pwrkey"; + linux,keycode = ; + wakeup-source; + status = "disabled"; + }; + watchdog { compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt"; timeout-sec = <60>;