[ARM] pxa/MioA701: improve power supply sources

Take advantage of the newly created wm97xx battery driver
and remove useless code in mioa701 board code. Add also the
ac connection detect capability after the matching gpio was
discovered.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Eric Miao <eric.miao@marvell.com>

arch/arm/mach-pxa/mioa701.c

@@ -34,7 +34,7 @@
 #include <linux/irq.h>
 #include <linux/pda_power.h>
 #include <linux/power_supply.h>
-#include <linux/wm97xx.h>
+#include <linux/wm97xx_batt.h>
 #include <linux/mtd/physmap.h>
 
 #include <asm/mach-types.h>
@@ -680,13 +680,19 @@ static char *supplicants[] = {
 	"mioa701_battery"
 };
 
+static int is_ac_connected(void)
+{
+	return gpio_get_value(GPIO96_AC_DETECT);
+}
+
 static void mioa701_set_charge(int flags)
 {
 	gpio_set_value(GPIO9_CHARGE_EN, (flags == PDA_POWER_CHARGE_USB));
 }
 
 static struct pda_power_pdata power_pdata = {
-	.is_ac_online	= is_usb_connected,
+	.is_ac_online	= is_ac_connected,
+	.is_usb_online	= is_usb_connected,
 	.set_charge = mioa701_set_charge,
 	.supplied_to = supplicants,
 	.num_supplicants = ARRAY_SIZE(supplicants),
@@ -695,6 +701,13 @@ static struct pda_power_pdata power_pdata = {
 static struct resource power_resources[] = {
 	[0] = {
 		.name	= "ac",
+		.start	= gpio_to_irq(GPIO96_AC_DETECT),
+		.end	= gpio_to_irq(GPIO96_AC_DETECT),
+		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
+		IORESOURCE_IRQ_LOWEDGE,
+	},
+	[1] = {
+		.name	= "usb",
 		.start	= gpio_to_irq(GPIO13_nUSB_DETECT),
 		.end	= gpio_to_irq(GPIO13_nUSB_DETECT),
 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
@@ -712,121 +725,18 @@ static struct platform_device power_dev = {
 	},
 };
 
-#if defined(CONFIG_PDA_POWER) && defined(CONFIG_TOUCHSCREEN_WM97XX)
-static struct wm97xx *battery_wm;
-
-static enum power_supply_property battery_props[] = {
-	POWER_SUPPLY_PROP_STATUS,
-	POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
-	POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
-	POWER_SUPPLY_PROP_VOLTAGE_NOW,
-	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,	/* Necessary for apm */
-};
-
-static int get_battery_voltage(void)
-{
-	int adc = -1;
-
-	if (battery_wm)
-		adc = wm97xx_read_aux_adc(battery_wm, WM97XX_AUX_ID1);
-	return adc;
-}
-
-static int get_battery_status(struct power_supply *b)
-{
-	int status;
-
-	if (is_usb_connected())
-		status = POWER_SUPPLY_STATUS_CHARGING;
-	else
-		status = POWER_SUPPLY_STATUS_DISCHARGING;
-
-	return status;
-}
-
-static int get_property(struct power_supply *b,
-			enum power_supply_property psp,
-			union power_supply_propval *val)
-{
-	int rc = 0;
-
-	switch (psp) {
-	case POWER_SUPPLY_PROP_STATUS:
-		val->intval = get_battery_status(b);
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
-		val->intval = 0xfd0;
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
-		val->intval = 0xc00;
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
-		val->intval = get_battery_voltage();
-		break;
-	case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
-		val->intval = 100;
-		break;
-	default:
-		val->intval = -1;
-		rc = -1;
-	}
-
-	return rc;
-};
-
-static struct power_supply battery_ps = {
-	.name = "mioa701_battery",
-	.type = POWER_SUPPLY_TYPE_BATTERY,
-	.get_property = get_property,
-	.properties = battery_props,
-	.num_properties = ARRAY_SIZE(battery_props),
+static struct wm97xx_batt_info mioa701_battery_data = {
+	.batt_aux	= WM97XX_AUX_ID1,
+	.temp_aux	= -1,
+	.charge_gpio	= -1,
+	.min_voltage	= 0xc00,
+	.max_voltage	= 0xfc0,
+	.batt_tech	= POWER_SUPPLY_TECHNOLOGY_LION,
+	.batt_div	= 1,
+	.batt_mult	= 1,
+	.batt_name	= "mioa701_battery",
 };
 
-static int battery_probe(struct platform_device *pdev)
-{
-	struct wm97xx *wm = platform_get_drvdata(pdev);
-	int rc;
-
-	battery_wm = wm;
-
-	rc = power_supply_register(NULL, &battery_ps);
-	if (rc)
-		dev_err(&pdev->dev,
-		"Could not register mioa701 battery -> %d\n", rc);
-	return rc;
-}
-
-static int battery_remove(struct platform_device *pdev)
-{
-	battery_wm = NULL;
-	return 0;
-}
-
-static struct platform_driver mioa701_battery_driver = {
-	.driver = {
-		.name = "wm97xx-battery",
-	},
-	.probe = battery_probe,
-	.remove = battery_remove
-};
-
-static int __init mioa701_battery_init(void)
-{
-	int rc;
-
-	rc = platform_driver_register(&mioa701_battery_driver);
-	if (rc)
-		printk(KERN_ERR "Could not register mioa701 battery driver\n");
-	return rc;
-}
-
-#else
-static int __init mioa701_battery_init(void)
-{
-	return 0;
-}
-#endif
-
 /*
  * Camera interface
  */
@@ -926,12 +836,12 @@ static void __init mioa701_machine_init(void)
 	set_pxa_fb_info(&mioa701_pxafb_info);
 	pxa_set_mci_info(&mioa701_mci_info);
 	pxa_set_keypad_info(&mioa701_keypad_info);
+	wm97xx_bat_set_pdata(&mioa701_battery_data);
 	udc_init();
 	pm_power_off = mioa701_poweroff;
 	arm_pm_restart = mioa701_restart;
 	platform_add_devices(devices, ARRAY_SIZE(devices));
 	gsm_init();
-	mioa701_battery_init();
 
 	pxa_set_i2c_info(&i2c_pdata);
 	pxa_set_camera_info(&mioa701_pxacamera_platform_data);