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Subject[PATCH] power: supply: bq27xxx: Add support for BQ27426
Date
This device is software similar to the BQ27426 except it has
different data memory offsets. Add support here.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
.../devicetree/bindings/power/supply/bq27xxx.txt | 1 +
drivers/power/supply/bq27xxx_battery.c | 9 +++++++++
drivers/power/supply/bq27xxx_battery_i2c.c | 2 ++
include/linux/power/bq27xxx_battery.h | 3 ++-
4 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/power/supply/bq27xxx.txt b/Documentation/devicetree/bindings/power/supply/bq27xxx.txt
index 615c1cb6889f..37994fdb18ca 100644
--- a/Documentation/devicetree/bindings/power/supply/bq27xxx.txt
+++ b/Documentation/devicetree/bindings/power/supply/bq27xxx.txt
@@ -25,6 +25,7 @@ Required properties:
* "ti,bq27545" - BQ27545
* "ti,bq27421" - BQ27421
* "ti,bq27425" - BQ27425
+ * "ti,bq27426" - BQ27426
* "ti,bq27441" - BQ27441
* "ti,bq27621" - BQ27621
- reg: integer, I2C address of the fuel gauge.
diff --git a/drivers/power/supply/bq27xxx_battery.c b/drivers/power/supply/bq27xxx_battery.c
index 7ce60519b1bc..d44ed8e17c47 100644
--- a/drivers/power/supply/bq27xxx_battery.c
+++ b/drivers/power/supply/bq27xxx_battery.c
@@ -432,6 +432,7 @@ static u8
BQ27XXX_DM_REG_ROWS,
};
#define bq27425_regs bq27421_regs
+#define bq27426_regs bq27421_regs
#define bq27441_regs bq27421_regs
#define bq27621_regs bq27421_regs

@@ -664,6 +665,7 @@ static enum power_supply_property bq27421_props[] = {
POWER_SUPPLY_PROP_MANUFACTURER,
};
#define bq27425_props bq27421_props
+#define bq27426_props bq27421_props
#define bq27441_props bq27421_props
#define bq27621_props bq27421_props

@@ -734,6 +736,12 @@ static struct bq27xxx_dm_reg bq27425_dm_regs[] = {
[BQ27XXX_DM_TERMINATE_VOLTAGE] = { 82, 18, 2, 2800, 3700 },
};

+static struct bq27xxx_dm_reg bq27426_dm_regs[] = {
+ [BQ27XXX_DM_DESIGN_CAPACITY] = { 82, 6, 2, 0, 8000 },
+ [BQ27XXX_DM_DESIGN_ENERGY] = { 82, 8, 2, 0, 32767 },
+ [BQ27XXX_DM_TERMINATE_VOLTAGE] = { 82, 10, 2, 2500, 3700 },
+};
+
#if 0 /* not yet tested */
#define bq27441_dm_regs bq27421_dm_regs
#else
@@ -795,6 +803,7 @@ static struct {
[BQ27545] = BQ27XXX_DATA(bq27545, 0x04143672, BQ27XXX_O_OTDC),
[BQ27421] = BQ27XXX_DATA(bq27421, 0x80008000, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP | BQ27XXX_O_RAM),
[BQ27425] = BQ27XXX_DATA(bq27425, 0x04143672, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP),
+ [BQ27426] = BQ27XXX_DATA(bq27426, 0x80008000, BQ27XXX_O_UTOT | BQ27XXX_O_CFGUP | BQ27XXX_O_RAM),
[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),
};
diff --git a/drivers/power/supply/bq27xxx_battery_i2c.c b/drivers/power/supply/bq27xxx_battery_i2c.c
index 6b25e5f2337e..40069128ad44 100644
--- a/drivers/power/supply/bq27xxx_battery_i2c.c
+++ b/drivers/power/supply/bq27xxx_battery_i2c.c
@@ -249,6 +249,7 @@ static const struct i2c_device_id bq27xxx_i2c_id_table[] = {
{ "bq27545", BQ27545 },
{ "bq27421", BQ27421 },
{ "bq27425", BQ27425 },
+ { "bq27426", BQ27426 },
{ "bq27441", BQ27441 },
{ "bq27621", BQ27621 },
{},
@@ -280,6 +281,7 @@ static const struct of_device_id bq27xxx_battery_i2c_of_match_table[] = {
{ .compatible = "ti,bq27545" },
{ .compatible = "ti,bq27421" },
{ .compatible = "ti,bq27425" },
+ { .compatible = "ti,bq27426" },
{ .compatible = "ti,bq27441" },
{ .compatible = "ti,bq27621" },
{},
diff --git a/include/linux/power/bq27xxx_battery.h b/include/linux/power/bq27xxx_battery.h
index 01fbf1b16258..d6355f49fbae 100644
--- a/include/linux/power/bq27xxx_battery.h
+++ b/include/linux/power/bq27xxx_battery.h
@@ -24,8 +24,9 @@ enum bq27xxx_chip {
BQ27546,
BQ27742,
BQ27545, /* bq27545 */
- BQ27421, /* bq27421, bq27425, bq27441, bq27621 */
+ BQ27421, /* bq27421, bq27441, bq27621 */
BQ27425,
+ BQ27426,
BQ27441,
BQ27621,
};
--
2.17.0
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