ENGR00214578: battery:divide one offset sysfs interface into two interfaces

one sysfs interface for offset_discharger ,one sysfs interface for
offset_charger.

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

diff --git a/drivers/power/sabresd_battery.c b/drivers/power/sabresd_battery.c
index 88fe30791dfb6b9b16a6346dfae8177cd85b09f4..df9f62cdeb5dbfcae99b7eba1e3c5b5161159fe6 100755 (executable)
--- a/drivers/power/sabresd_battery.c
+++ b/drivers/power/sabresd_battery.c
@@ -274,7 +274,6 @@ static int max8903_battery_get_property(struct power_supply *bat,
 {
        struct max8903_data *di = container_of(bat,
                        struct max8903_data, bat);
-       static unsigned long last;
        switch (psp) {
        case POWER_SUPPLY_PROP_STATUS:
                val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
@@ -470,37 +469,54 @@ static void max8903_battery_work(struct work_struct *work)
        schedule_delayed_work(&data->work, data->interval);
 }
 
-static ssize_t max8903_voltage_offset_show(struct device *dev,
+static ssize_t max8903_voltage_offset_discharger_show(struct device *dev,
                            struct device_attribute *attr, char *buf)
 {
-       return sprintf(buf, "read offset_discharger:%04d,offset_charger:%04d\n",
-               offset_discharger, offset_charger);
+       return sprintf(buf, "read offset_discharger:%04d\n",
+               offset_discharger);
 }
 
-static ssize_t max8903_voltage_offset_store(struct device *dev,
+static ssize_t max8903_voltage_offset_discharger_store(struct device *dev,
                             struct device_attribute *attr, const char *buf,
                             size_t count)
 {
-       char *p;
-
        offset_discharger = simple_strtoul(buf, NULL, 10);
-       p = NULL;
-       p = memchr(buf, ' ', count);
-       p += 1;
-       offset_charger = simple_strtoul(p, NULL, 10);
+       pr_info("read offset_discharger:%04d\n", offset_discharger);
+       return count;
+}
 
-       pr_info("read offset_discharger:%04d,offset_charger:%04d\n",
-               offset_discharger, offset_charger);
+static ssize_t max8903_voltage_offset_charger_show(struct device *dev,
+                           struct device_attribute *attr, char *buf)
+{
+       return sprintf(buf, "read offset_charger:%04d\n",
+               offset_charger);
+}
+
+static ssize_t max8903_voltage_offset_charger_store(struct device *dev,
+                            struct device_attribute *attr, const char *buf,
+                            size_t count)
+{
+       offset_charger = simple_strtoul(buf, NULL, 10);
+       pr_info("read offset_charger:%04d\n", offset_charger);
        return count;
 }
 
-static struct device_attribute max8903_dev_attr = {
+static struct device_attribute max8903_discharger_dev_attr = {
+       .attr = {
+                .name = "max8903_ctl_offset_discharger",
+                .mode = S_IRUSR | S_IWUSR,
+                },
+       .show = max8903_voltage_offset_discharger_show,
+       .store = max8903_voltage_offset_discharger_store,
+};
+
+static struct device_attribute max8903_charger_dev_attr = {
        .attr = {
-                .name = "max8903_ctl",
+                .name = "max8903_ctl_offset_charger",
                 .mode = S_IRUSR | S_IWUSR,
                 },
-       .show = max8903_voltage_offset_show,
-       .store = max8903_voltage_offset_store,
+       .show = max8903_voltage_offset_charger_show,
+       .store = max8903_voltage_offset_charger_store,
 };
 
 static __devinit int max8903_probe(struct platform_device *pdev)
@@ -699,7 +715,10 @@ static __devinit int max8903_probe(struct platform_device *pdev)
                }
        }
 
-       ret = device_create_file(&pdev->dev, &max8903_dev_attr);
+       ret = device_create_file(&pdev->dev, &max8903_discharger_dev_attr);
+       if (ret)
+               dev_err(&pdev->dev, "create device file failed!\n");
+       ret = device_create_file(&pdev->dev, &max8903_charger_dev_attr);
        if (ret)
                dev_err(&pdev->dev, "create device file failed!\n");
        if (cpu_type_flag == 1) {