bq20z75: Add support for charge properties

Adding support for charge properties for gas gauge.

Also ensuring that battery mode is correct now for energy as well as
charge properties by setting it on the fly.

I also added 2 functions to power_supply.h to help identify the units for
specific properties more easily by power supplies.

Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>

1 files changed, 44 insertions, 0 deletions

diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 7d7325685c42..e3419fc5541e 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -213,4 +213,48 @@ extern void power_supply_unregister(struct power_supply *psy);
 /* For APM emulation, think legacy userspace. */
 extern struct class *power_supply_class;
 
+static inline bool power_supply_is_amp_property(enum power_supply_property psp)
+{
+        switch (psp) {
+        case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
+        case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN:
+        case POWER_SUPPLY_PROP_CHARGE_FULL:
+        case POWER_SUPPLY_PROP_CHARGE_EMPTY:
+        case POWER_SUPPLY_PROP_CHARGE_NOW:
+        case POWER_SUPPLY_PROP_CHARGE_AVG:
+        case POWER_SUPPLY_PROP_CHARGE_COUNTER:
+        case POWER_SUPPLY_PROP_CURRENT_MAX:
+        case POWER_SUPPLY_PROP_CURRENT_NOW:
+        case POWER_SUPPLY_PROP_CURRENT_AVG:
+                return 1;
+        default:
+                break;
+        }
+
+        return 0;
+}
+
+static inline bool power_supply_is_watt_property(enum power_supply_property psp)
+{
+        switch (psp) {
+        case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
+        case POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN:
+        case POWER_SUPPLY_PROP_ENERGY_FULL:
+        case POWER_SUPPLY_PROP_ENERGY_EMPTY:
+        case POWER_SUPPLY_PROP_ENERGY_NOW:
+        case POWER_SUPPLY_PROP_ENERGY_AVG:
+        case POWER_SUPPLY_PROP_VOLTAGE_MAX:
+        case POWER_SUPPLY_PROP_VOLTAGE_MIN:
+        case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
+        case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
+        case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+        case POWER_SUPPLY_PROP_VOLTAGE_AVG:
+                return 1;
+        default:
+                break;
+        }
+
+        return 0;
+}
+
 #endif /* __LINUX_POWER_SUPPLY_H__ */