[ARM] pxa/raumfeld: Check charge state after resume

Use the resume callback of the pda_power supply framework to check for a
'charge finished' event that might have occured during the sleep phase.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

1 files changed, 21 insertions, 8 deletions

diff --git a/arch/arm/mach-pxa/raumfeld.c b/arch/arm/mach-pxa/raumfeld.c
index d4b61b3f08f3..67e04f4e07c1 100644
--- a/arch/arm/mach-pxa/raumfeld.c
+++ b/arch/arm/mach-pxa/raumfeld.c
@@ -745,13 +745,32 @@ static int raumfeld_is_usb_online(void)
 
 static char *raumfeld_power_supplicants[] = { "ds2760-battery.0" };
 
+static void raumfeld_power_signal_charged(void)
+{
+        struct power_supply *psy =
+                power_supply_get_by_name(raumfeld_power_supplicants[0]);
+
+        if (psy)
+                power_supply_set_battery_charged(psy);
+}
+
+static int raumfeld_power_resume(void)
+{
+        /* check if GPIO_CHARGE_DONE went low while we were sleeping */
+        if (!gpio_get_value(GPIO_CHARGE_DONE))
+                raumfeld_power_signal_charged();
+
+        return 0;
+}
+
 static struct pda_power_pdata power_supply_info = {
         .init                   = power_supply_init,
         .is_ac_online           = raumfeld_is_ac_online,
         .is_usb_online          = raumfeld_is_usb_online,
         .exit                   = power_supply_exit,
         .supplied_to            = raumfeld_power_supplicants,
-        .num_supplicants        = ARRAY_SIZE(raumfeld_power_supplicants)
+        .num_supplicants        = ARRAY_SIZE(raumfeld_power_supplicants),
+        .resume                 = raumfeld_power_resume,
 };
 
 static struct resource power_supply_resources[] = {
@@ -766,13 +785,7 @@ static struct resource power_supply_resources[] = {
 
 static irqreturn_t charge_done_irq(int irq, void *dev_id)
 {
-        struct power_supply *psy;
-
-        psy = power_supply_get_by_name("ds2760-battery.0");
-
-        if (psy)
-                power_supply_set_battery_charged(psy);
-
+        raumfeld_power_signal_charged();
         return IRQ_HANDLED;
 }