diff options
Diffstat (limited to '0001-power-supply-max17042_battery-Add-support-for-ACPI-e.patch')
| -rw-r--r-- | 0001-power-supply-max17042_battery-Add-support-for-ACPI-e.patch | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/0001-power-supply-max17042_battery-Add-support-for-ACPI-e.patch b/0001-power-supply-max17042_battery-Add-support-for-ACPI-e.patch new file mode 100644 index 000000000..858cd5a34 --- /dev/null +++ b/0001-power-supply-max17042_battery-Add-support-for-ACPI-e.patch @@ -0,0 +1,78 @@ +From 075bb90dbb4d894938c5859e3850987238db9cd8 Mon Sep 17 00:00:00 2001 +From: Hans de Goede <hdegoede@redhat.com> +Date: Fri, 11 Aug 2017 22:30:55 +0200 +Subject: [PATCH 1/2] 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> +--- + drivers/power/supply/max17042_battery.c | 22 +++++++++++++++++++++- + 1 file changed, 21 insertions(+), 1 deletion(-) + +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, + }, +-- +2.13.4 + |