From: Andrej Picej <andrej.picej@norik.com> To: support.opensource@diasemi.com, linux@roeck-us.net, linux-watchdog@vger.kernel.org Cc: andrej.picej@norik.com, wim@linux-watchdog.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, devicetree@vger.kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 3/4] dt-bindings: watchdog: da9062: add watchdog timeout mode Date: Thu, 2 Dec 2021 10:32:29 +0100 [thread overview] Message-ID: <20211202093230.3951996-3-andrej.picej@norik.com> (raw) In-Reply-To: <20211202093230.3951996-1-andrej.picej@norik.com> Document the watchdog timeout mode property. If this property is used the user can select what happens on watchdog timeout. Set this property to 1 to enable SHUTDOWN (the device resets), set it to 0 and the device will go to POWERDOWN on watchdog timeout. If this property is not set, don't touch the WATCHDOG_SD bit and leave the configuration to OTP. This way backward compatibility is not broken. Signed-off-by: Andrej Picej <andrej.picej@norik.com> --- Changes in v4: - no changes Changes in v3: - add note about using the default OTP setting if this DT binding is not specified Changes in v2: - new patch, document new DT binding --- Documentation/devicetree/bindings/watchdog/da9062-wdt.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/watchdog/da9062-wdt.txt b/Documentation/devicetree/bindings/watchdog/da9062-wdt.txt index 950e4fba8dbc..354314d854ef 100644 --- a/Documentation/devicetree/bindings/watchdog/da9062-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/da9062-wdt.txt @@ -10,6 +10,12 @@ Optional properties: - dlg,use-sw-pm: Add this property to disable the watchdog during suspend. Only use this option if you can't use the watchdog automatic suspend function during a suspend (see register CONTROL_B). +- dlg,wdt-sd: Set what happens on watchdog timeout. If this bit is set the + watchdog timeout triggers SHUTDOWN, if cleared the watchdog triggers + POWERDOWN. Can be 0 or 1. Only use this option if you want to change the + default chip's OTP setting for WATCHDOG_SD bit. If this property is NOT + set the WATCHDOG_SD bit and on timeout watchdog behavior will match the + chip's OTP settings. Example: DA9062 -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Andrej Picej <andrej.picej@norik.com> To: support.opensource@diasemi.com, linux@roeck-us.net, linux-watchdog@vger.kernel.org Cc: andrej.picej@norik.com, wim@linux-watchdog.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, devicetree@vger.kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 3/4] dt-bindings: watchdog: da9062: add watchdog timeout mode Date: Thu, 2 Dec 2021 10:32:29 +0100 [thread overview] Message-ID: <20211202093230.3951996-3-andrej.picej@norik.com> (raw) In-Reply-To: <20211202093230.3951996-1-andrej.picej@norik.com> Document the watchdog timeout mode property. If this property is used the user can select what happens on watchdog timeout. Set this property to 1 to enable SHUTDOWN (the device resets), set it to 0 and the device will go to POWERDOWN on watchdog timeout. If this property is not set, don't touch the WATCHDOG_SD bit and leave the configuration to OTP. This way backward compatibility is not broken. Signed-off-by: Andrej Picej <andrej.picej@norik.com> --- Changes in v4: - no changes Changes in v3: - add note about using the default OTP setting if this DT binding is not specified Changes in v2: - new patch, document new DT binding --- Documentation/devicetree/bindings/watchdog/da9062-wdt.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/watchdog/da9062-wdt.txt b/Documentation/devicetree/bindings/watchdog/da9062-wdt.txt index 950e4fba8dbc..354314d854ef 100644 --- a/Documentation/devicetree/bindings/watchdog/da9062-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/da9062-wdt.txt @@ -10,6 +10,12 @@ Optional properties: - dlg,use-sw-pm: Add this property to disable the watchdog during suspend. Only use this option if you can't use the watchdog automatic suspend function during a suspend (see register CONTROL_B). +- dlg,wdt-sd: Set what happens on watchdog timeout. If this bit is set the + watchdog timeout triggers SHUTDOWN, if cleared the watchdog triggers + POWERDOWN. Can be 0 or 1. Only use this option if you want to change the + default chip's OTP setting for WATCHDOG_SD bit. If this property is NOT + set the WATCHDOG_SD bit and on timeout watchdog behavior will match the + chip's OTP settings. Example: DA9062 -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-12-02 9:32 UTC|newest] Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-12-02 9:32 [PATCH v4 1/4] mfd: da9062: make register CONFIG_I writable Andrej Picej 2021-12-02 9:32 ` Andrej Picej 2021-12-02 9:32 ` [PATCH v4 2/4] watchdog: da9062: reset board on watchdog timeout Andrej Picej 2021-12-02 9:32 ` Andrej Picej 2021-12-02 12:18 ` Adam Thomson 2021-12-02 12:18 ` Adam Thomson 2021-12-02 12:25 ` Andrej Picej 2021-12-02 12:25 ` Andrej Picej 2021-12-02 14:41 ` Guenter Roeck 2021-12-02 14:41 ` Guenter Roeck 2021-12-02 9:32 ` Andrej Picej [this message] 2021-12-02 9:32 ` [PATCH v4 3/4] dt-bindings: watchdog: da9062: add watchdog timeout mode Andrej Picej 2021-12-02 12:19 ` Adam Thomson 2021-12-02 12:19 ` Adam Thomson 2021-12-02 9:32 ` [PATCH v4 4/4] ARM: dts: imx6: phycore-som: set watchdog timeout mode to shutdown Andrej Picej 2021-12-02 9:32 ` Andrej Picej 2021-12-02 12:14 ` [PATCH v4 1/4] mfd: da9062: make register CONFIG_I writable Adam Thomson 2021-12-02 12:14 ` Adam Thomson 2021-12-02 14:40 ` Guenter Roeck 2021-12-02 14:40 ` Guenter Roeck 2021-12-02 15:18 ` Christoph Niedermaier 2021-12-03 8:59 ` Andrej Picej 2021-12-03 8:59 ` Andrej Picej 2021-12-03 15:04 ` Guenter Roeck 2021-12-03 15:04 ` Guenter Roeck
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