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, 7 insertions, 4 deletions

diff --git a/drivers/power/lp8788-charger.c b/drivers/power/lp8788-charger.c
index 176dab2..8e4d228 100644
--- a/drivers/power/lp8788-charger.c
+++ b/drivers/power/lp8788-charger.c
@@ -400,15 +400,18 @@ static int lp8788_update_charger_params(struct platform_device *pdev,
 static int lp8788_psy_register(struct platform_device *pdev,
 				struct lp8788_charger *pchg)
 {
+	struct power_supply_config charger_cfg = {};
+
 	pchg->charger.name = LP8788_CHARGER_NAME;
 	pchg->charger.type = POWER_SUPPLY_TYPE_MAINS;
 	pchg->charger.properties = lp8788_charger_prop;
 	pchg->charger.num_properties = ARRAY_SIZE(lp8788_charger_prop);
 	pchg->charger.get_property = lp8788_charger_get_property;
-	pchg->charger.supplied_to = battery_supplied_to;
-	pchg->charger.num_supplicants = ARRAY_SIZE(battery_supplied_to);
 
-	if (power_supply_register(&pdev->dev, &pchg->charger))
+	charger_cfg.supplied_to = battery_supplied_to;
+	charger_cfg.num_supplicants = ARRAY_SIZE(battery_supplied_to);
+
+	if (power_supply_register(&pdev->dev, &pchg->charger, &charger_cfg))
 		return -EPERM;
 
 	pchg->battery.name = LP8788_BATTERY_NAME;
@@ -417,7 +420,7 @@ static int lp8788_psy_register(struct platform_device *pdev,
 	pchg->battery.num_properties = ARRAY_SIZE(lp8788_battery_prop);
 	pchg->battery.get_property = lp8788_battery_get_property;
 
-	if (power_supply_register(&pdev->dev, &pchg->battery)) {
+	if (power_supply_register(&pdev->dev, &pchg->battery, NULL)) {
 		power_supply_unregister(&pchg->charger);
 		return -EPERM;
 	}