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Mon, 02 Sep 2019 06:39:15 -0700 (PDT) Received: from localhost ([212.187.182.166]) by smtp.gmail.com with ESMTPSA id s19sm28771567wrb.94.2019.09.02.06.39.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Sep 2019 06:39:15 -0700 (PDT) Date: Mon, 02 Sep 2019 14:39:14 +0100 From: Rob Herring To: Anson Huang Cc: 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, Linux-imx@nxp.com Subject: Re: [PATCH 1/5] dt-bindings: fsl: scu: add scu power key binding Message-ID: <20190902043521.GA14143@bogus> References: <1567198429-27886-1-git-send-email-Anson.Huang@nxp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1567198429-27886-1-git-send-email-Anson.Huang@nxp.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Aug 30, 2019 at 04:53:45PM -0400, Anson Huang wrote: > 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; wakeup-source implies an interrupt property. > + status = "disabled"; Don't should status in examples. > + }; > + > watchdog { > compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt"; > timeout-sec = <60>; > -- > 2.7.4 >