sysfs-platform-power-on-reason

 1What:		/sys/devices/platform/.../power_on_reason
 2Date:		June 2023
 3KernelVersion:	6.5
 4Contact:	Kamel Bouhara <kamel.bouhara@bootlin.com>
 5Description:	Shows system power on reason. The following strings/reasons can
 6		be read (the list can be extended):
 7		"regular power-up", "RTC wakeup", "watchdog timeout",
 8		"software reset", "reset button action", "CPU clock failure",
 9		"crystal oscillator failure", "brown-out reset",
10		"unknown reason".
11
12		The file is read only.