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authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-05-31 13:30:11 +0100
committerAnton Vorontsov <cbouatmailru@gmail.com>2011-07-08 16:57:21 +0400
commitccf8fa2d1b4dd8660aadc830f22645781628b894 (patch)
treecb3cb711fc9367c72d1c9e8c9f4cd6ccd03255a1 /drivers/power
parentd03760318edbc78b72cb7fa96bddb65263384d24 (diff)
downloadlinux-ccf8fa2d1b4dd8660aadc830f22645781628b894.tar.bz2
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>
Diffstat (limited to 'drivers/power')
-rw-r--r--drivers/power/wm831x_power.c26
1 files changed, 23 insertions, 3 deletions
diff --git a/drivers/power/wm831x_power.c b/drivers/power/wm831x_power.c
index ddf8cf5f3204..6cc2ca6427f3 100644
--- a/drivers/power/wm831x_power.c
+++ b/drivers/power/wm831x_power.c
@@ -24,6 +24,9 @@ struct wm831x_power {
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 irqreturn_t wm831x_pwr_src_irq(int irq, void *data)
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 @@ static __devinit int wm831x_power_probe(struct platform_device *pdev)
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 @@ static __devinit int wm831x_power_probe(struct platform_device *pdev)
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 @@ static __devinit int wm831x_power_probe(struct platform_device *pdev)
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);