diff options
| -rw-r--r-- | drivers/power/max17040_battery.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/power/max17040_battery.c b/drivers/power/max17040_battery.c index f8115b80ee2..8a098f54523 100644 --- a/drivers/power/max17040_battery.c +++ b/drivers/power/max17040_battery.c @@ -51,6 +51,9 @@ struct max17040_chip { int soc; /* State Of Charge */ int status; + + /* If true, SoC's shown in double */ + bool using_19_bits; }; static void max17040_reset(struct i2c_client *client) @@ -101,6 +104,15 @@ static void max17040_get_soc(struct i2c_client *client) soc = (msb * 100) + (lsb * 100 / 256); soc /= 10; + /* FIXME: + * No information about actual meaning of using 19 bits, + * it's just copied from vendor's code. + * However, It is clear that it represents doubled SoC + * if the chip is marked with 'using 19 bits'. + */ + if (chip->using_19_bits) + soc /= 2; + max17040_get_scaled_capacity(&soc); /* capacity should be between 0% and 100% * (0.1% degree) @@ -207,6 +219,11 @@ static int max17040_probe(struct i2c_client *client, return -EINVAL; } + /* A flag for value of SoC in double or not */ + if (client->dev.of_node) + chip->using_19_bits = of_property_read_bool(client->dev.of_node, + "using-19-bits"); + chip->pdata = client->dev.platform_data; if (!chip->pdata) { |