power_supply: Move run-time configuration to separate structure

Add new structure 'power_supply_config' for holding run-time
initialization data like of_node, supplies and private driver data.

The power_supply_register() function is changed so all power supply
drivers need updating.

When registering the power supply this new 'power_supply_config' should be
used instead of directly initializing 'struct power_supply'. This allows
changing the ownership of power_supply structure from driver to the
power supply core in next patches.

When a driver does not use of_node or supplies then it should use NULL
as config. If driver uses of_node or supplies then it should allocate
config on stack and initialize it with proper values.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Pavel Machek <pavel@ucw.cz>

[for the nvec part]
Reviewed-by: Marc Dietrich <marvin24@gmx.de>

[for drivers/platform/x86/compal-laptop.c]
Reviewed-by: Darren Hart <dvhart@linux.intel.com>

[for drivers/hid/*]
Reviewed-by: Jiri Kosina <jkosina@suse.cz>

Signed-off-by: Sebastian Reichel <sre@kernel.org>

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/power/bq24735-charger.c b/drivers/power/bq24735-charger.c
index d022b823305b..242e79bfe217 100644
--- a/drivers/power/bq24735-charger.c
+++ b/drivers/power/bq24735-charger.c
@@ -249,6 +249,7 @@ static int bq24735_charger_probe(struct i2c_client *client,
 	int ret;
 	struct bq24735 *charger;
 	struct power_supply *supply;
+	struct power_supply_config psy_cfg = {};
 	char *name;
 
 	charger = devm_kzalloc(&client->dev, sizeof(*charger), GFP_KERNEL);
@@ -284,9 +285,10 @@ static int bq24735_charger_probe(struct i2c_client *client,
 	supply->properties = bq24735_charger_properties;
 	supply->num_properties = ARRAY_SIZE(bq24735_charger_properties);
 	supply->get_property = bq24735_charger_get_property;
-	supply->supplied_to = charger->pdata->supplied_to;
-	supply->num_supplicants = charger->pdata->num_supplicants;
-	supply->of_node = client->dev.of_node;
+
+	psy_cfg.supplied_to = charger->pdata->supplied_to;
+	psy_cfg.num_supplicants = charger->pdata->num_supplicants;
+	psy_cfg.of_node = client->dev.of_node;
 
 	i2c_set_clientdata(client, charger);
 
@@ -341,7 +343,7 @@ static int bq24735_charger_probe(struct i2c_client *client,
 		}
 	}
 
-	ret = power_supply_register(&client->dev, supply);
+	ret = power_supply_register(&client->dev, supply, &psy_cfg);
 	if (ret < 0) {
 		dev_err(&client->dev, "Failed to register power supply: %d\n",
 			ret);