charger-manager: Clean up for better readability
This patch includes below changes:
* Some code change for better readability.
* Current code in probe already ensures desc->charger_regulators
is not NULL. No need to check if it is NULL or not before calling
regulator_bulk_free().
* Use dev_get_drvdata() in cm_suspend_prepare() and cm_suspend_complete()
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
diff --git a/drivers/power/charger-manager.c b/drivers/power/charger-manager.c
index 88fd971..e610e6b 100644
--- a/drivers/power/charger-manager.c
+++ b/drivers/power/charger-manager.c
@@ -134,12 +134,11 @@
union power_supply_propval val;
int ret;
- if (cm->fuel_gauge)
- ret = cm->fuel_gauge->get_property(cm->fuel_gauge,
- POWER_SUPPLY_PROP_VOLTAGE_NOW, &val);
- else
+ if (!cm->fuel_gauge)
return -ENODEV;
+ ret = cm->fuel_gauge->get_property(cm->fuel_gauge,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW, &val);
if (ret)
return ret;
@@ -245,9 +244,7 @@
struct charger_desc *desc = cm->desc;
/* Ignore if it's redundent command */
- if (enable && cm->charger_enabled)
- return 0;
- if (!enable && !cm->charger_enabled)
+ if (enable == cm->charger_enabled)
return 0;
if (enable) {
@@ -309,9 +306,7 @@
if (!strncmp(env_str_save, event, UEVENT_BUF_SIZE))
return; /* Duplicated. */
- else
- strncpy(env_str_save, event, UEVENT_BUF_SIZE);
-
+ strncpy(env_str_save, event, UEVENT_BUF_SIZE);
return;
}
@@ -387,8 +382,10 @@
mutex_lock(&cm_list_mtx);
- list_for_each_entry(cm, &cm_list, entry)
- stop = stop || _cm_monitor(cm);
+ list_for_each_entry(cm, &cm_list, entry) {
+ if (_cm_monitor(cm))
+ stop = true;
+ }
mutex_unlock(&cm_list_mtx);
@@ -697,8 +694,10 @@
mutex_lock(&cm_list_mtx);
list_for_each_entry(cm, &cm_list, entry) {
if (cm->status_save_ext_pwr_inserted != is_ext_pwr_online(cm) ||
- cm->status_save_batt != is_batt_present(cm))
+ cm->status_save_batt != is_batt_present(cm)) {
ret = false;
+ break;
+ }
}
mutex_unlock(&cm_list_mtx);
@@ -855,11 +854,10 @@
platform_set_drvdata(pdev, cm);
- memcpy(&cm->charger_psy, &psy_default,
- sizeof(psy_default));
+ memcpy(&cm->charger_psy, &psy_default, sizeof(psy_default));
+
if (!desc->psy_name) {
- strncpy(cm->psy_name_buf, psy_default.name,
- PSY_NAME_MAX);
+ strncpy(cm->psy_name_buf, psy_default.name, PSY_NAME_MAX);
} else {
strncpy(cm->psy_name_buf, desc->psy_name, PSY_NAME_MAX);
}
@@ -894,15 +892,15 @@
POWER_SUPPLY_PROP_CURRENT_NOW;
cm->charger_psy.num_properties++;
}
- if (!desc->measure_battery_temp) {
- cm->charger_psy.properties[cm->charger_psy.num_properties] =
- POWER_SUPPLY_PROP_TEMP_AMBIENT;
- cm->charger_psy.num_properties++;
- }
+
if (desc->measure_battery_temp) {
cm->charger_psy.properties[cm->charger_psy.num_properties] =
POWER_SUPPLY_PROP_TEMP;
cm->charger_psy.num_properties++;
+ } else {
+ cm->charger_psy.properties[cm->charger_psy.num_properties] =
+ POWER_SUPPLY_PROP_TEMP_AMBIENT;
+ cm->charger_psy.num_properties++;
}
ret = power_supply_register(NULL, &cm->charger_psy);
@@ -933,9 +931,8 @@
return 0;
err_chg_enable:
- if (desc->charger_regulators)
- regulator_bulk_free(desc->num_charger_regulators,
- desc->charger_regulators);
+ regulator_bulk_free(desc->num_charger_regulators,
+ desc->charger_regulators);
err_bulk_get:
power_supply_unregister(&cm->charger_psy);
err_register:
@@ -961,10 +958,8 @@
list_del(&cm->entry);
mutex_unlock(&cm_list_mtx);
- if (desc->charger_regulators)
- regulator_bulk_free(desc->num_charger_regulators,
- desc->charger_regulators);
-
+ regulator_bulk_free(desc->num_charger_regulators,
+ desc->charger_regulators);
power_supply_unregister(&cm->charger_psy);
kfree(cm->charger_psy.properties);
kfree(cm->charger_stat);
@@ -982,9 +977,7 @@
static int cm_suspend_prepare(struct device *dev)
{
- struct platform_device *pdev = container_of(dev, struct platform_device,
- dev);
- struct charger_manager *cm = platform_get_drvdata(pdev);
+ struct charger_manager *cm = dev_get_drvdata(dev);
if (!cm_suspended) {
if (rtc_dev) {
@@ -1020,9 +1013,7 @@
static void cm_suspend_complete(struct device *dev)
{
- struct platform_device *pdev = container_of(dev, struct platform_device,
- dev);
- struct charger_manager *cm = platform_get_drvdata(pdev);
+ struct charger_manager *cm = dev_get_drvdata(dev);
if (cm_suspended) {
if (rtc_dev) {