linux-kernel - [PATCH V2 1/4] dt-bindings: fsl: scu: add watchdog binding

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Message-ID: <1556421727-7401-1-git-send-email-Anson.Huang@nxp.com>
Date:   Sun, 28 Apr 2019 03:27:00 +0000
From:   Anson Huang <anson.huang@....com>
To:     "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "wim@...ux-watchdog.org" <wim@...ux-watchdog.org>,
        "linux@...ck-us.net" <linux@...ck-us.net>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        Aisheng Dong <aisheng.dong@....com>,
        "ulf.hansson@...aro.org" <ulf.hansson@...aro.org>,
        Peng Fan <peng.fan@....com>,
        Daniel Baluta <daniel.baluta@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-watchdog@...r.kernel.org" <linux-watchdog@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
CC:     dl-linux-imx <linux-imx@....com>
Subject: [PATCH V2 1/4] dt-bindings: fsl: scu: add watchdog binding

i.MX system controller watchdog has pretimeout function which
depends on i.MX SCU driver, so watchdog DT node needs to be
subnode of SCU, this patch adds i.MX system controller watchdog
binding to SCU binding doc.

Signed-off-by: Anson Huang <Anson.Huang@....com>
---
New patch.
---
 .../devicetree/bindings/arm/freescale/fsl,scu.txt         | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
index 5d7dbab..1b56557 100644
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
+++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
@@ -133,6 +133,16 @@ RTC bindings based on SCU Message Protocol
 Required properties:
 - compatible: should be "fsl,imx8qxp-sc-rtc";
 
+Watchdog bindings based on SCU Message Protocol
+------------------------------------------------------------
+
+Required properties:
+- compatible: should be:
+              "fsl,imx8qxp-sc-wdt"
+              followed by "fsl,imx-sc-wdt";
+Optional properties:
+- timeout-sec: contains the watchdog timeout in seconds.
+
 Example (imx8qxp):
 -------------
 aliases {
@@ -185,6 +195,11 @@ firmware {
 		rtc: rtc {
 			compatible = "fsl,imx8qxp-sc-rtc";
 		};
+
+		watchdog {
+			compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt";
+			timeout-sec = <60>;
+		};
 	};
 };
 
-- 
2.7.4