wm831x_power: Support multiple instances
If there are multiple wm831x devices in the system we need to assign
different names to the power supply devices in order to ensure we can
create the sysfs entries for them.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
diff --git a/drivers/power/wm831x_power.c b/drivers/power/wm831x_power.c
index ddf8cf5..6cc2ca6 100644
--- a/drivers/power/wm831x_power.c
+++ b/drivers/power/wm831x_power.c
@@ -24,6 +24,9 @@
struct power_supply wall;
struct power_supply usb;
struct power_supply battery;
+ char wall_name[20];
+ char usb_name[20];
+ char battery_name[20];
};
static int wm831x_power_check_online(struct wm831x *wm831x, int supply,
@@ -486,6 +489,7 @@
static __devinit int wm831x_power_probe(struct platform_device *pdev)
{
struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
+ struct wm831x_pdata *wm831x_pdata = wm831x->dev->platform_data;
struct wm831x_power *power;
struct power_supply *usb;
struct power_supply *battery;
@@ -503,12 +507,28 @@
battery = &power->battery;
wall = &power->wall;
+ if (wm831x_pdata && wm831x_pdata->wm831x_num) {
+ snprintf(power->wall_name, sizeof(power->wall_name),
+ "wm831x-wall.%d", wm831x_pdata->wm831x_num);
+ snprintf(power->battery_name, sizeof(power->wall_name),
+ "wm831x-battery.%d", wm831x_pdata->wm831x_num);
+ snprintf(power->usb_name, sizeof(power->wall_name),
+ "wm831x-usb.%d", wm831x_pdata->wm831x_num);
+ } else {
+ snprintf(power->wall_name, sizeof(power->wall_name),
+ "wm831x-wall");
+ snprintf(power->battery_name, sizeof(power->wall_name),
+ "wm831x-battery");
+ snprintf(power->usb_name, sizeof(power->wall_name),
+ "wm831x-usb");
+ }
+
/* We ignore configuration failures since we can still read back
* the status without enabling the charger.
*/
wm831x_config_battery(wm831x);
- wall->name = "wm831x-wall";
+ wall->name = power->wall_name;
wall->type = POWER_SUPPLY_TYPE_MAINS;
wall->properties = wm831x_wall_props;
wall->num_properties = ARRAY_SIZE(wm831x_wall_props);
@@ -517,7 +537,7 @@
if (ret)
goto err_kmalloc;
- battery->name = "wm831x-battery";
+ battery->name = power->battery_name;
battery->properties = wm831x_bat_props;
battery->num_properties = ARRAY_SIZE(wm831x_bat_props);
battery->get_property = wm831x_bat_get_prop;
@@ -526,7 +546,7 @@
if (ret)
goto err_wall;
- usb->name = "wm831x-usb",
+ usb->name = power->usb_name,
usb->type = POWER_SUPPLY_TYPE_USB;
usb->properties = wm831x_usb_props;
usb->num_properties = ARRAY_SIZE(wm831x_usb_props);