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, 4 insertions, 2 deletions

diff --git a/drivers/power/sbs-battery.c b/drivers/power/sbs-battery.c
index c7b7b40..879f144 100644
--- a/drivers/power/sbs-battery.c
+++ b/drivers/power/sbs-battery.c
@@ -801,6 +801,7 @@ static int sbs_probe(struct i2c_client *client,
 {
 	struct sbs_info *chip;
 	struct sbs_platform_data *pdata = client->dev.platform_data;
+	struct power_supply_config psy_cfg = {};
 	int rc;
 	int irq;
 	char *name;
@@ -825,7 +826,7 @@ static int sbs_probe(struct i2c_client *client,
 	chip->power_supply.properties = sbs_properties;
 	chip->power_supply.num_properties = ARRAY_SIZE(sbs_properties);
 	chip->power_supply.get_property = sbs_get_property;
-	chip->power_supply.of_node = client->dev.of_node;
+	psy_cfg.of_node = client->dev.of_node;
 	/* ignore first notification of external change, it is generated
 	 * from the power_supply_register call back
 	 */
@@ -892,7 +893,8 @@ skip_gpio:
 		goto exit_psupply;
 	}
 
-	rc = power_supply_register(&client->dev, &chip->power_supply);
+	rc = power_supply_register(&client->dev, &chip->power_supply,
+			&psy_cfg);
 	if (rc) {
 		dev_err(&client->dev,
 			"%s: Failed to register power supply\n", __func__);