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e8605d39a3
During board initialization read the shared memory item SMEM_POWER_ON_STATUS_INFO and place it in the procfs at /proc/sys/kernel/boot_reason The data item is an integer with a bit being set to identify the reason the device was powered on. The values of this data item is defined in the document Document/arm/msm/boot.txt, the following is the data in the documentation file. power_on_status values set by the PMIC for power on event: ---------------------------------------------------------- 0x01 -- keyboard power on 0x02 -- RTC alarm 0x04 -- cable power on 0x08 -- SMPL 0x10 -- Watch Dog timeout 0x20 -- USB charger 0x40 -- Wall charger 0xFF -- error reading power_on_status value This is change is a response to a customer request described in JIRA KERNEL-518 Change-Id: I59e665f92e6e29f7dfef4380314f676a2d92c94b Signed-off-by: Rick Adams <rgadams@codeaurora.org> (cherry picked from commit 9512d7e26abc9d23a1771533c5300605d70dfaa7) Conflicts: arch/arm/include/asm/processor.h arch/arm/mach-msm/board-msm7x30.c kernel/sysctl.c |
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