diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2017-08-14 23:18:10 +0300 |
|---|---|---|
| committer | Sebastian Reichel <sebastian.reichel@collabora.co.uk> | 2017-08-28 19:19:07 +0300 |
| commit | e21162029a57d3fe657e1eae12283702360cd5c5 (patch) | |
| tree | 5c919247953be84c13643068eae0fd7dc6e1186a /drivers/power | |
| parent | 810e006a82c9482d0353abe37cea68ddf6d76896 (diff) | |
| download | linux-e21162029a57d3fe657e1eae12283702360cd5c5.tar.xz | |
power: supply: max17042_battery: Add support for ACPI enumeration
Some x86 devices enumerate a max17047 fuel-gauge through a MAX17047
ACPI firmware-node, add support for this.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/supply/max17042_battery.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/power/supply/max17042_battery.c b/drivers/power/supply/max17042_battery.c index aecaaa2b0586..b2ddb7eb69c6 100644 --- a/drivers/power/supply/max17042_battery.c +++ b/drivers/power/supply/max17042_battery.c @@ -22,6 +22,7 @@ * This driver is based on max17040_battery.c */ +#include <linux/acpi.h> #include <linux/init.h> #include <linux/module.h> #include <linux/slab.h> @@ -982,6 +983,8 @@ static int max17042_probe(struct i2c_client *client, struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); const struct power_supply_desc *max17042_desc = &max17042_psy_desc; struct power_supply_config psy_cfg = {}; + const struct acpi_device_id *acpi_id; + struct device *dev = &client->dev; struct max17042_chip *chip; int ret; int i; @@ -995,7 +998,15 @@ static int max17042_probe(struct i2c_client *client, return -ENOMEM; chip->client = client; - chip->chip_type = id->driver_data; + if (id) { + chip->chip_type = id->driver_data; + } else { + acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev); + if (!acpi_id) + return -ENODEV; + + chip->chip_type = acpi_id->driver_data; + } chip->regmap = devm_regmap_init_i2c(client, &max17042_regmap_config); if (IS_ERR(chip->regmap)) { dev_err(&client->dev, "Failed to initialize regmap\n"); @@ -1104,6 +1115,14 @@ static int max17042_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(max17042_pm_ops, max17042_suspend, max17042_resume); +#ifdef CONFIG_ACPI +static const struct acpi_device_id max17042_acpi_match[] = { + { "MAX17047", MAXIM_DEVICE_TYPE_MAX17047 }, + { } +}; +MODULE_DEVICE_TABLE(acpi, max17042_acpi_match); +#endif + #ifdef CONFIG_OF static const struct of_device_id max17042_dt_match[] = { { .compatible = "maxim,max17042" }, @@ -1125,6 +1144,7 @@ MODULE_DEVICE_TABLE(i2c, max17042_id); static struct i2c_driver max17042_i2c_driver = { .driver = { .name = "max17042", + .acpi_match_table = ACPI_PTR(max17042_acpi_match), .of_match_table = of_match_ptr(max17042_dt_match), .pm = &max17042_pm_ops, }, |