382256b219
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> Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20211206064732.280375-4-andrej.picej@norik.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
35 lines
1.1 KiB
Plaintext
35 lines
1.1 KiB
Plaintext
* Dialog Semiconductor DA9062/61 Watchdog Timer
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Required properties:
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- compatible: should be one of the following valid compatible string lines:
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"dlg,da9061-watchdog", "dlg,da9062-watchdog"
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"dlg,da9062-watchdog"
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Optional properties:
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- dlg,use-sw-pm: Add this property to disable the watchdog during suspend.
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Only use this option if you can't use the watchdog automatic suspend
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function during a suspend (see register CONTROL_B).
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- dlg,wdt-sd: Set what happens on watchdog timeout. If this bit is set the
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watchdog timeout triggers SHUTDOWN, if cleared the watchdog triggers
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POWERDOWN. Can be 0 or 1. Only use this option if you want to change the
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default chip's OTP setting for WATCHDOG_SD bit. If this property is NOT
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set the WATCHDOG_SD bit and on timeout watchdog behavior will match the
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chip's OTP settings.
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Example: DA9062
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pmic0: da9062@58 {
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watchdog {
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compatible = "dlg,da9062-watchdog";
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};
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};
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Example: DA9061 using a fall-back compatible for the DA9062 watchdog driver
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pmic0: da9061@58 {
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watchdog {
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compatible = "dlg,da9061-watchdog", "dlg,da9062-watchdog";
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};
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};
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