Re: [PATCH v2 02/13] power: bq24257: Add basic support for bq24250/bq24251

[Laurentiu Palcu <laurentiu.palcu@intel.com>]

On Tue, Sep 08, 2015 at 07:12:26PM -0500, Andreas Dannenberg wrote:
[...]
>  
>  #include <linux/module.h>
> @@ -41,6 +45,18 @@
>  
>  #define BQ24257_ILIM_SET_DELAY		1000	/* msec */
>  
> +enum bq2425x_chip {
> +	BQ24250,
> +	BQ24251,
> +	BQ24257,
> +};
> +
> +static const char *bq2425x_chip_name[] = {
static const char *const bq2425x_chip_name[]

That's safer and it also makes checkpatch happy.

> +	"bq24250",
> +	"bq24251",
> +	"bq24257",
> +};
> +
>  enum bq24257_fields {
>  	F_WD_FAULT, F_WD_EN, F_STAT, F_FAULT,			    /* REG 1 */
>  	F_RESET, F_IILIMIT, F_EN_STAT, F_EN_TERM, F_CE, F_HZ_MODE,  /* REG 2 */
> @@ -71,6 +87,8 @@ struct bq24257_device {
>  	struct device *dev;
>  	struct power_supply *charger;
>  
> +	enum bq2425x_chip chip;
> +
>  	struct regmap *rmap;
>  	struct regmap_field *rmap_fields[F_MAX_FIELDS];
>  
> @@ -250,6 +268,10 @@ static int bq24257_power_supply_get_property(struct power_supply *psy,
>  		val->strval = BQ24257_MANUFACTURER;
>  		break;
>  
> +	case POWER_SUPPLY_PROP_MODEL_NAME:
> +		val->strval = bq2425x_chip_name[bq->chip];
> +		break;
> +
>  	case POWER_SUPPLY_PROP_ONLINE:
>  		val->intval = state.power_good;
>  		break;
> @@ -570,6 +592,7 @@ static int bq24257_hw_init(struct bq24257_device *bq)
>  
>  static enum power_supply_property bq24257_power_supply_props[] = {
>  	POWER_SUPPLY_PROP_MANUFACTURER,
> +	POWER_SUPPLY_PROP_MODEL_NAME,
>  	POWER_SUPPLY_PROP_STATUS,
>  	POWER_SUPPLY_PROP_ONLINE,
>  	POWER_SUPPLY_PROP_HEALTH,
> @@ -667,6 +690,7 @@ static int bq24257_probe(struct i2c_client *client,
>  {
>  	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
>  	struct device *dev = &client->dev;
> +	const struct acpi_device_id *acpi_id;
>  	struct bq24257_device *bq;
>  	int ret;
>  	int i;
> @@ -683,6 +707,18 @@ static int bq24257_probe(struct i2c_client *client,
>  	bq->client = client;
>  	bq->dev = dev;
>  
> +	if (ACPI_HANDLE(dev)) {
> +		acpi_id = acpi_match_device(dev->driver->acpi_match_table,
> +				&client->dev);
> +		if (!acpi_id) {
> +			dev_err(dev, "Failed to match ACPI device\n");
> +			return -ENODEV;
> +		}
> +		bq->chip = (enum bq2425x_chip)acpi_id->driver_data;
> +	} else {
> +		bq->chip = (enum bq2425x_chip)id->driver_data;
> +	}
> +
>  	mutex_init(&bq->lock);
>  
>  	bq->rmap = devm_regmap_init_i2c(client, &bq24257_regmap_config);
> @@ -824,19 +860,27 @@ static const struct dev_pm_ops bq24257_pm = {
>  };
>  
>  static const struct i2c_device_id bq24257_i2c_ids[] = {
> -	{ "bq24257", 0 },
> +	{ "bq24250", BQ24250 },
> +	{ "bq24251", BQ24251 },
> +	{ "bq24257", BQ24257 },
>  	{},
>  };
>  MODULE_DEVICE_TABLE(i2c, bq24257_i2c_ids);
>  
>  static const struct of_device_id bq24257_of_match[] = {
> -	{ .compatible = "ti,bq24257", },
> +	{
> +		.compatible = "ti,bq24250",
> +		.compatible = "ti,bq24251",
> +		.compatible = "ti,bq24257",
> +	},
Maybe you wanted:
	{ .compatible = "ti,bq24250", },
	{ .compatible = "ti,bq24251", },
	{ .compatible = "ti,bq24252", },

>  	{ },
>  };

BTW, ACPI enumeration works fine. I tested the series on my setup
(before starting to review the patches :D).

laurentiu