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Commit eeec5683 authored by David Ng's avatar David Ng
Browse files

power: reset: msm: Handle dm-verity and keys reset reasons 



Write magic cookies/PON reset reason to indicate reasons
of dm-verity corruption, re-enable enforcing mode, and
(unrelated) keys clear.

Change-Id: I49904c79940515863d794b23fa7ac84e472b2466
Signed-off-by: default avatarDavid Ng <dave@codeaurora.org>
parent 0c37cc25

drivers/power/reset/msm-poweroff.c

+12 −0
Original line number Diff line number Diff line
@@ -263,6 +263,18 @@ static void msm_restart_prepare(const char *cmd) 
			qpnp_pon_set_restart_reason(

				PON_RESTART_REASON_RTC);

			__raw_writel(0x77665503, restart_reason);

		} else if (!strcmp(cmd, "dm-verity device corrupted")) {

			qpnp_pon_set_restart_reason(

				PON_RESTART_REASON_DMVERITY_CORRUPTED);

			__raw_writel(0x77665508, restart_reason);

		} else if (!strcmp(cmd, "dm-verity enforcing")) {

			qpnp_pon_set_restart_reason(

				PON_RESTART_REASON_DMVERITY_ENFORCE);

			__raw_writel(0x77665509, restart_reason);

		} else if (!strcmp(cmd, "keys clear")) {

			qpnp_pon_set_restart_reason(

				PON_RESTART_REASON_KEYS_CLEAR);

			__raw_writel(0x7766550a, restart_reason);

		} else if (!strncmp(cmd, "oem-", 4)) {

			unsigned long code;

			int ret;

include/linux/qpnp/power-on.h

+7 −4
Original line number Diff line number Diff line
@@ -52,6 +52,9 @@ enum pon_restart_reason { 
	PON_RESTART_REASON_RECOVERY		= 0x01,

	PON_RESTART_REASON_BOOTLOADER		= 0x02,

	PON_RESTART_REASON_RTC			= 0x03,

	PON_RESTART_REASON_DMVERITY_CORRUPTED	= 0x04,

	PON_RESTART_REASON_DMVERITY_ENFORCE	= 0x05,

	PON_RESTART_REASON_KEYS_CLEAR		= 0x06,

};



#ifdef CONFIG_QPNP_POWER_ON