sniper: Power off when the power on reason is not a valid one
In most cases, userspace will attempt to power off the device with HALT instead
of POWER_OFF, which triggers a reset instead of a proper power off from the
TWL4030. Hence, it is up to the bootloader to actually turn the device off when
there is no reason to turn it on.
A reboot identified with the OMAP reboot mode bits set is acceptable, as well as
a power on reason from either the power button, USB or charger plug.
Other cases should trigger a power off. Note that for the U-Boot reset command
to take effect, we have to fill-in the OMAP reboot bits.
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/board/lge/sniper/sniper.c b/board/lge/sniper/sniper.c
index 97c2ed0..c94a3fa4 100644
--- a/board/lge/sniper/sniper.c
+++ b/board/lge/sniper/sniper.c
@@ -94,6 +94,7 @@
char serial_string[17] = { 0 };
char reboot_mode[2] = { 0 };
u32 dieid[4] = { 0 };
+ unsigned char data = 0;
/* Power button reset init */
@@ -107,6 +108,18 @@
setenv("reboot-mode", (char *)reboot_mode);
omap_reboot_mode_clear();
+ } else {
+ /*
+ * When not rebooting, valid power on reasons are either the
+ * power button, charger plug or USB plug.
+ */
+
+ data |= twl4030_input_power_button();
+ data |= twl4030_input_charger();
+ data |= twl4030_input_usb();
+
+ if (!data)
+ twl4030_power_off();
}
/* Serial number */
@@ -145,6 +158,11 @@
}
}
+void reset_misc(void)
+{
+ omap_reboot_mode_store('u');
+}
+
int fb_set_reboot_flag(void)
{
return omap_reboot_mode_store('b');