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Commit bb2a95c2 authored by Axel Lin's avatar Axel Lin Committed by Anton Vorontsov
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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: default avatarAxel Lin <axel.lin@gmail.com>
Signed-off-by: default avatarAnton Vorontsov <anton.vorontsov@linaro.org>
parent 534f5306

drivers/power/charger-manager.c

+26 −35
Original line number Diff line number Diff line
@@ -134,12 +134,11 @@ static int get_batt_uV(struct charger_manager *cm, int *uV) 
	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 @@ static int try_charger_enable(struct charger_manager *cm, bool enable) 
	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 @@ static void uevent_notify(struct charger_manager *cm, const char *event) 


		if (!strncmp(env_str_save, event, UEVENT_BUF_SIZE))

			return; /* Duplicated. */

		else

		strncpy(env_str_save, event, UEVENT_BUF_SIZE);



		return;

	}
@@ -387,8 +382,10 @@ static bool cm_monitor(void) 


	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 @@ bool cm_suspend_again(void) 
	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 @@ static int charger_manager_probe(struct platform_device *pdev) 


	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 @@ static int charger_manager_probe(struct platform_device *pdev) 
				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);
@@ -933,7 +931,6 @@ static int charger_manager_probe(struct platform_device *pdev) 
	return 0;



err_chg_enable:

	if (desc->charger_regulators)

	regulator_bulk_free(desc->num_charger_regulators,

			    desc->charger_regulators);

err_bulk_get:
@@ -961,10 +958,8 @@ static int __devexit charger_manager_remove(struct platform_device *pdev) 
	list_del(&cm->entry);

	mutex_unlock(&cm_list_mtx);



	if (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 @@ MODULE_DEVICE_TABLE(platform, charger_manager_id); 


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 int cm_suspend_prepare(struct device *dev) 


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) {