[PATCH 2/5] power: supply: bq27xxx: add support for bq27z746

[Henrik Grimler <henrik.grimler@axis.com>]

bq27z746 is similar to bq27z561, but has additional battery protection
functionality. The register map is largely the same, with deviations
only among the AltManufacturerAccess() registers.

Signed-off-by: Henrik Grimler <henrik.grimler@axis.com>
---
 drivers/power/supply/bq27xxx_battery.c     | 6 ++++++
 drivers/power/supply/bq27xxx_battery_i2c.c | 2 ++
 include/linux/power/bq27xxx_battery.h      | 1 +
 3 files changed, 9 insertions(+)

diff --git a/drivers/power/supply/bq27xxx_battery.c b/drivers/power/supply/bq27xxx_battery.c
index 45f0e39b8c2d..be3ca4b76c80 100644
--- a/drivers/power/supply/bq27xxx_battery.c
+++ b/drivers/power/supply/bq27xxx_battery.c
@@ -37,6 +37,7 @@
  * https://www.ti.com/product/bq27441-g1
  * https://www.ti.com/product/bq27621-g1
  * https://www.ti.com/product/bq27z561
+ * https://www.ti.com/product/bq27z746
  * https://www.ti.com/product/bq28z610
  * https://www.ti.com/product/bq34z100-g1
  * https://www.ti.com/product/bq78z100
@@ -501,6 +502,7 @@ static u8
 		[BQ27XXX_REG_AP] = 0x22,
 		BQ27XXX_DM_REG_ROWS,
 	},
+#define bq27z746_regs bq27z561_regs
 	bq28z610_regs[BQ27XXX_REG_MAX] = {
 		[BQ27XXX_REG_CTRL] = 0x00,
 		[BQ27XXX_REG_TEMP] = 0x06,
@@ -836,6 +838,8 @@ static enum power_supply_property bq27z561_props[] = {
 	POWER_SUPPLY_PROP_MANUFACTURER,
 };
 
+#define bq27z746_props bq27z561_props
+
 static enum power_supply_property bq28z610_props[] = {
 	POWER_SUPPLY_PROP_STATUS,
 	POWER_SUPPLY_PROP_PRESENT,
@@ -994,6 +998,7 @@ static struct bq27xxx_dm_reg bq27621_dm_regs[] = {
 #endif
 
 #define bq27z561_dm_regs NULL
+#define bq27z746_dm_regs NULL
 #define bq28z610_dm_regs NULL
 #define bq34z100_dm_regs NULL
 #define bq78z100_dm_regs NULL
@@ -1052,6 +1057,7 @@ static struct {
 	[BQ27441]   = BQ27XXX_DATA(bq27441,   0x80008000, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP | BQ27XXX_O_RAM),
 	[BQ27621]   = BQ27XXX_DATA(bq27621,   0x80008000, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP | BQ27XXX_O_RAM),
 	[BQ27Z561]  = BQ27XXX_DATA(bq27z561,  0         , BQ27Z561_O_BITS),
+	[BQ27Z746]  = BQ27XXX_DATA(bq27z746,  0         , BQ27Z561_O_BITS),
 	[BQ28Z610]  = BQ27XXX_DATA(bq28z610,  0         , BQ27Z561_O_BITS),
 	[BQ34Z100]  = BQ27XXX_DATA(bq34z100,  0         , BQ27XXX_O_OTDC | BQ27XXX_O_SOC_SI | \
 							  BQ27XXX_O_HAS_CI | BQ27XXX_O_MUL_CHEM),
diff --git a/drivers/power/supply/bq27xxx_battery_i2c.c b/drivers/power/supply/bq27xxx_battery_i2c.c
index c4e7a9521d08..2a6b4534cb28 100644
--- a/drivers/power/supply/bq27xxx_battery_i2c.c
+++ b/drivers/power/supply/bq27xxx_battery_i2c.c
@@ -253,6 +253,7 @@ static const struct i2c_device_id bq27xxx_i2c_id_table[] = {
 	{ .name = "bq27441", .driver_data = BQ27441 },
 	{ .name = "bq27621", .driver_data = BQ27621 },
 	{ .name = "bq27z561", .driver_data = BQ27Z561 },
+	{ .name = "bq27z746", .driver_data = BQ27Z746 },
 	{ .name = "bq28z610", .driver_data = BQ28Z610 },
 	{ .name = "bq34z100", .driver_data = BQ34Z100 },
 	{ .name = "bq78z100", .driver_data = BQ78Z100 },
@@ -290,6 +291,7 @@ static const struct of_device_id bq27xxx_battery_i2c_of_match_table[] = {
 	{ .compatible = "ti,bq27441" },
 	{ .compatible = "ti,bq27621" },
 	{ .compatible = "ti,bq27z561" },
+	{ .compatible = "ti,bq27z746" },
 	{ .compatible = "ti,bq28z610" },
 	{ .compatible = "ti,bq34z100" },
 	{ .compatible = "ti,bq78z100" },
diff --git a/include/linux/power/bq27xxx_battery.h b/include/linux/power/bq27xxx_battery.h
index d56e1276aafe..0b833c4bb583 100644
--- a/include/linux/power/bq27xxx_battery.h
+++ b/include/linux/power/bq27xxx_battery.h
@@ -33,6 +33,7 @@ enum bq27xxx_chip {
 	BQ27441,
 	BQ27621,
 	BQ27Z561,
+	BQ27Z746,
 	BQ28Z610,
 	BQ34Z100,
 	BQ78Z100,

-- 
2.43.0