static void chipset_turn_off_power_rails(void)
{
/* Release the power on pin, if it was asserted */
set_pmic_pwron(0);
/* Close the pmic power source immediately */
set_pmic_source(0);
/* Keep AP and PMIC in reset the whole time */
set_pmic_warm_reset(1);
}
/**
* Power on the AP
*/
static void power_on(void)
{
int i;
set_pmic_source(1);
usleep(PMIC_SOURCE_STARTUP_TIME);
set_pmic_pwron(1);
/*
* BUG Workaround(crosbug.com/p/31635): usleep hangs in task when using
* big delays.
*/
for (i = 0; i < PMIC_STARTUP_MS; i++)
usleep(1 * MSEC);
set_pmic_warm_reset(0);
}
/**
* Power on the AP
*/
static void power_on(void)
{
int i;
set_pmic_source(1);
usleep(PMIC_SOURCE_STARTUP_TIME);
set_pmic_pwron(1);
/*
* BUG Workaround(crosbug.com/p/31635): usleep hangs in task when using
* big delays.
*/
for (i = 0; i < PMIC_STARTUP_MS; i++)
usleep(1 * MSEC);
/* Reset the PMIC to make sure it's in a known state. */
set_pmic_reset(1);
usleep(PMIC_RESET_HOLD_TIME);
set_pmic_reset(0);
set_pmic_warm_reset(0);
}
