power: supply: bq27xxx: adds specific support for bq27520-g4 revision.

This commit adds the BQ27520G4 chip definition to specifically match the
bq27520-G4 functionality as described in the datasheet.

Signed-off-by: Chris Lapa <chris@lapa.com.au>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>

diff --git a/drivers/power/supply/bq27xxx_battery.c b/drivers/power/supply/bq27xxx_battery.c
index 1fe48ea4078fd6a9502279f2bce7b254a5f5f309..398801a21b865eef7c0fb4e1e7bce8449e239f6a 100644 (file)
--- a/drivers/power/supply/bq27xxx_battery.c
+++ b/drivers/power/supply/bq27xxx_battery.c
@@ -29,6 +29,7 @@
  * http://www.ti.com/product/bq27520-g1
  * http://www.ti.com/product/bq27520-g2
  * http://www.ti.com/product/bq27520-g3
+ * http://www.ti.com/product/bq27520-g4
  * http://www.ti.com/product/bq27530-g1
  * http://www.ti.com/product/bq27531-g1
  * http://www.ti.com/product/bq27541-g1
@@ -321,6 +322,25 @@ static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = {
                [BQ27XXX_REG_DCAP] = 0x3c,
                [BQ27XXX_REG_AP] = 0x24,
        },
+       [BQ27520G4] = {
+               [BQ27XXX_REG_CTRL] = 0x00,
+               [BQ27XXX_REG_TEMP] = 0x06,
+               [BQ27XXX_REG_INT_TEMP] = 0x28,
+               [BQ27XXX_REG_VOLT] = 0x08,
+               [BQ27XXX_REG_AI] = 0x14,
+               [BQ27XXX_REG_FLAGS] = 0x0a,
+               [BQ27XXX_REG_TTE] = 0x16,
+               [BQ27XXX_REG_TTF] = INVALID_REG_ADDR,
+               [BQ27XXX_REG_TTES] = 0x1c,
+               [BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
+               [BQ27XXX_REG_NAC] = 0x0c,
+               [BQ27XXX_REG_FCC] = 0x12,
+               [BQ27XXX_REG_CYCT] = 0x1e,
+               [BQ27XXX_REG_AE] = INVALID_REG_ADDR,
+               [BQ27XXX_REG_SOC] = 0x20,
+               [BQ27XXX_REG_DCAP] = INVALID_REG_ADDR,
+               [BQ27XXX_REG_AP] = INVALID_REG_ADDR,
+       },
        [BQ27530] = {
                [BQ27XXX_REG_CTRL] = 0x00,
                [BQ27XXX_REG_TEMP] = 0x06,
@@ -619,6 +639,23 @@ static enum power_supply_property bq27520g3_battery_props[] = {
        POWER_SUPPLY_PROP_MANUFACTURER,
 };
 
+static enum power_supply_property bq27520g4_battery_props[] = {
+       POWER_SUPPLY_PROP_STATUS,
+       POWER_SUPPLY_PROP_PRESENT,
+       POWER_SUPPLY_PROP_VOLTAGE_NOW,
+       POWER_SUPPLY_PROP_CURRENT_NOW,
+       POWER_SUPPLY_PROP_CAPACITY,
+       POWER_SUPPLY_PROP_CAPACITY_LEVEL,
+       POWER_SUPPLY_PROP_TEMP,
+       POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
+       POWER_SUPPLY_PROP_TECHNOLOGY,
+       POWER_SUPPLY_PROP_CHARGE_FULL,
+       POWER_SUPPLY_PROP_CHARGE_NOW,
+       POWER_SUPPLY_PROP_CYCLE_COUNT,
+       POWER_SUPPLY_PROP_HEALTH,
+       POWER_SUPPLY_PROP_MANUFACTURER,
+};
+
 static enum power_supply_property bq27530_battery_props[] = {
        POWER_SUPPLY_PROP_STATUS,
        POWER_SUPPLY_PROP_PRESENT,
@@ -710,6 +747,7 @@ static struct {
        BQ27XXX_PROP(BQ27520G1, bq27520g1_battery_props),
        BQ27XXX_PROP(BQ27520G2, bq27520g2_battery_props),
        BQ27XXX_PROP(BQ27520G3, bq27520g3_battery_props),
+       BQ27XXX_PROP(BQ27520G4, bq27520g4_battery_props),
        BQ27XXX_PROP(BQ27530, bq27530_battery_props),
        BQ27XXX_PROP(BQ27541, bq27541_battery_props),
        BQ27XXX_PROP(BQ27545, bq27545_battery_props),
@@ -971,6 +1009,7 @@ static bool bq27xxx_battery_overtemp(struct bq27xxx_device_info *di, u16 flags)
        case BQ27520G1:
        case BQ27520G2:
        case BQ27520G3:
+       case BQ27520G4:
        case BQ27541:
        case BQ27545:
                return flags & (BQ27XXX_FLAG_OTC | BQ27XXX_FLAG_OTD);

diff --git a/drivers/power/supply/bq27xxx_battery_i2c.c b/drivers/power/supply/bq27xxx_battery_i2c.c
index 3712cd902023e56750b0bff2500be25c1bad5a12..c68fbc3fe50a9252c1fe93a8d346190bb1a361e1 100644 (file)
--- a/drivers/power/supply/bq27xxx_battery_i2c.c
+++ b/drivers/power/supply/bq27xxx_battery_i2c.c
@@ -158,6 +158,7 @@ static const struct i2c_device_id bq27xxx_i2c_id_table[] = {
        { "bq27520g1", BQ27520G1 },
        { "bq27520g2", BQ27520G2 },
        { "bq27520g3", BQ27520G3 },
+       { "bq27520g4", BQ27520G4 },
        { "bq27530", BQ27530 },
        { "bq27531", BQ27530 },
        { "bq27541", BQ27541 },
@@ -187,6 +188,7 @@ static const struct of_device_id bq27xxx_battery_i2c_of_match_table[] = {
        { .compatible = "ti,bq27520g1" },
        { .compatible = "ti,bq27520g2" },
        { .compatible = "ti,bq27520g3" },
+       { .compatible = "ti,bq27520g4" },
        { .compatible = "ti,bq27530" },
        { .compatible = "ti,bq27531" },
        { .compatible = "ti,bq27541" },

diff --git a/include/linux/power/bq27xxx_battery.h b/include/linux/power/bq27xxx_battery.h
index 5c12717d0f750a9adbb34fb3319b2a122e0dd6b9..b312bcef53da9da35df60dd4ddb321556db3a518 100644 (file)
--- a/include/linux/power/bq27xxx_battery.h
+++ b/include/linux/power/bq27xxx_battery.h
@@ -13,6 +13,7 @@ enum bq27xxx_chip {
        BQ27520G1, /* bq27520G1 */
        BQ27520G2, /* bq27520G2 */
        BQ27520G3, /* bq27520G3 */
+       BQ27520G4, /* bq27520G4 */
        BQ27530, /* bq27530, bq27531 */
        BQ27541, /* bq27541, bq27542, bq27546, bq27742 */
        BQ27545, /* bq27545 */