Commit 00a159a5 authored by Philip Rakity's avatar Philip Rakity Committed by Anton Vorontsov

max8925_power: Check at probe time if power to set online

The interrupt for ac on/off can be missed during boot time.
Check if online by seeing if we have power.  We choose 0.5V
since this is high enough to avoid random reading from a
input that could be floating if no charger.
Signed-off-by: default avatarPhilip Rakity <prakity@marvell.com>
Signed-off-by: default avatarTed Bennett <tbennett@marvell.com>
Signed-off-by: default avatarAnton Vorontsov <cbouatmailru@gmail.com>
parent b57f2f61
...@@ -377,9 +377,15 @@ static __devinit int max8925_init_charger(struct max8925_chip *chip, ...@@ -377,9 +377,15 @@ static __devinit int max8925_init_charger(struct max8925_chip *chip,
REQUEST_IRQ(MAX8925_IRQ_VCHG_TOPOFF, "charger-topoff"); REQUEST_IRQ(MAX8925_IRQ_VCHG_TOPOFF, "charger-topoff");
REQUEST_IRQ(MAX8925_IRQ_VCHG_TMR_FAULT, "charger-timer-expire"); REQUEST_IRQ(MAX8925_IRQ_VCHG_TMR_FAULT, "charger-timer-expire");
info->ac_online = 0;
info->usb_online = 0; info->usb_online = 0;
info->bat_online = 0; info->bat_online = 0;
/* check for power - can miss interrupt at boot time */
if (start_measure(info, MEASURE_VCHG) * 2000 > 500000)
info->ac_online = 1;
else
info->ac_online = 0;
ret = max8925_reg_read(info->gpm, MAX8925_CHG_STATUS); ret = max8925_reg_read(info->gpm, MAX8925_CHG_STATUS);
if (ret >= 0) { if (ret >= 0) {
/* /*
......
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