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>
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index e30d85c..0d7c95f 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -176,6 +176,16 @@
struct device;
struct device_node;
+/* Power supply instance specific configuration */
+struct power_supply_config {
+ struct device_node *of_node;
+ /* Driver private data */
+ void *drv_data;
+
+ char **supplied_to;
+ size_t num_supplicants;
+};
+
struct power_supply {
const char *name;
enum power_supply_type type;
@@ -278,13 +288,17 @@
#endif
extern int power_supply_register(struct device *parent,
- struct power_supply *psy);
+ struct power_supply *psy,
+ const struct power_supply_config *cfg);
extern int power_supply_register_no_ws(struct device *parent,
- struct power_supply *psy);
+ struct power_supply *psy,
+ const struct power_supply_config *cfg);
extern int devm_power_supply_register(struct device *parent,
- struct power_supply *psy);
+ struct power_supply *psy,
+ const struct power_supply_config *cfg);
extern int devm_power_supply_register_no_ws(struct device *parent,
- struct power_supply *psy);
+ struct power_supply *psy,
+ const struct power_supply_config *cfg);
extern void power_supply_unregister(struct power_supply *psy);
extern int power_supply_powers(struct power_supply *psy, struct device *dev);