ENGR00222078 power battery:fix charger attach detect missing after resume

1.config gpio dok for AC charger as wake up irq, config gpio uok
for USB charger as wake up irq.
2.add AC/USB charger detect in resume,fix charger detect status update
missing after attach AC/USB charger and resume system

Signed-off-by: Rong Dian <b38775@freescale.com>

diff --git a/drivers/power/sabresd_battery.c b/drivers/power/sabresd_battery.c
index 516fbd806b64c98bad7fbd1e4e8befaf1c890481..c7318a6eb02c5db87897c4aa570423e74e8cc6f4 100755 (executable)
--- a/drivers/power/sabresd_battery.c
+++ b/drivers/power/sabresd_battery.c
@@ -884,16 +884,52 @@ static int max8903_suspend(struct platform_device *pdev,
                                  pm_message_t state)
 {
        struct max8903_data *data = platform_get_drvdata(pdev);
-
-       cancel_delayed_work(&data->work);
+       int irq;
+       if (data) {
+               struct max8903_pdata *pdata = data->pdata;
+               if (pdata) {
+                       irq = gpio_to_irq(pdata->dok);
+                       enable_irq_wake(irq);
+                       irq = gpio_to_irq(pdata->uok);
+                       enable_irq_wake(irq);
+                       cancel_delayed_work(&data->work);
+               }
+       }
        return 0;
 }
 
 static int max8903_resume(struct platform_device *pdev)
 {
        struct max8903_data *data = platform_get_drvdata(pdev);
-
-       schedule_delayed_work(&data->work, BATTERY_UPDATE_INTERVAL);
+       bool ta_in;
+       bool usb_in;
+       int irq;
+       if (data) {
+               struct max8903_pdata *pdata = data->pdata;
+               if (pdata) {
+                       ta_in = gpio_get_value(pdata->dok) ? false : true;
+                       usb_in = gpio_get_value(pdata->uok) ? false : true;
+                       if (ta_in != data->ta_in) {
+                               data->ta_in = ta_in;
+                               pr_info("TA(DC-IN) Charger %s.\n", ta_in ?
+                               "Connected" : "Disconnected");
+                               max8903_charger_update_status(data);
+                               power_supply_changed(&data->psy);
+                       }
+                       if (usb_in != data->usb_in) {
+                               data->usb_in = usb_in;
+                               pr_info("USB Charger %s.\n", usb_in ?
+                               "Connected" : "Disconnected");
+                               max8903_charger_update_status(data);
+                               power_supply_changed(&data->usb);
+                       }
+                       irq = gpio_to_irq(pdata->dok);
+                       disable_irq_wake(irq);
+                       irq = gpio_to_irq(pdata->uok);
+                       disable_irq_wake(irq);
+                       schedule_delayed_work(&data->work, BATTERY_UPDATE_INTERVAL);
+               }
+       }
        return 0;
 
 }