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, 3 deletions

diff --git a/drivers/power/ab8500_btemp.c b/drivers/power/ab8500_btemp.c
index 4ebf7b0819f7..d5683f503a4e 100644
--- a/drivers/power/ab8500_btemp.c
+++ b/drivers/power/ab8500_btemp.c
@@ -1058,6 +1058,7 @@ static int ab8500_btemp_probe(struct platform_device *pdev)
 {
         struct device_node *np = pdev->dev.of_node;
         struct abx500_bm_data *plat = pdev->dev.platform_data;
+        struct power_supply_config psy_cfg = {};
         struct ab8500_btemp *di;
         int irq, i, ret = 0;
         u8 val;
@@ -1095,11 +1096,11 @@ static int ab8500_btemp_probe(struct platform_device *pdev)
         di->btemp_psy.properties = ab8500_btemp_props;
         di->btemp_psy.num_properties = ARRAY_SIZE(ab8500_btemp_props);
         di->btemp_psy.get_property = ab8500_btemp_get_property;
-        di->btemp_psy.supplied_to = supply_interface;
-        di->btemp_psy.num_supplicants = ARRAY_SIZE(supply_interface);
         di->btemp_psy.external_power_changed =
                 ab8500_btemp_external_power_changed;
 
+        psy_cfg.supplied_to = supply_interface;
+        psy_cfg.num_supplicants = ARRAY_SIZE(supply_interface);
 
         /* Create a work queue for the btemp */
         di->btemp_wq =
@@ -1140,7 +1141,7 @@ static int ab8500_btemp_probe(struct platform_device *pdev)
         }
 
         /* Register BTEMP power supply class */
-        ret = power_supply_register(di->dev, &di->btemp_psy);
+        ret = power_supply_register(di->dev, &di->btemp_psy, &psy_cfg);
         if (ret) {
                 dev_err(di->dev, "failed to register BTEMP psy\n");
                 goto free_btemp_wq;