diff options
Diffstat (limited to 'drivers/mfd/tps65217.c')
| -rw-r--r-- | drivers/mfd/tps65217.c | 94 |
1 files changed, 64 insertions, 30 deletions
diff --git a/drivers/mfd/tps65217.c b/drivers/mfd/tps65217.c index db194e433c0..3cc4c7084b9 100644 --- a/drivers/mfd/tps65217.c +++ b/drivers/mfd/tps65217.c @@ -24,10 +24,21 @@ #include <linux/slab.h> #include <linux/regmap.h> #include <linux/err.h> +#include <linux/of.h> +#include <linux/of_device.h> #include <linux/mfd/core.h> #include <linux/mfd/tps65217.h> +static const struct mfd_cell tps65217s[] = { + { + .name = "tps65217-pmic", + }, + { + .name = "tps65217-bl", + }, +}; + /** * tps65217_reg_read: Read a single tps65217 register. * @@ -137,19 +148,46 @@ static struct regmap_config tps65217_regmap_config = { .val_bits = 8, }; -static int __devinit tps65217_probe(struct i2c_client *client, +static const struct of_device_id tps65217_of_match[] = { + { .compatible = "ti,tps65217", .data = (void *)TPS65217 }, + { /* sentinel */ }, +}; + +static int tps65217_probe(struct i2c_client *client, const struct i2c_device_id *ids) { struct tps65217 *tps; - struct tps65217_board *pdata = client->dev.platform_data; - int i, ret; unsigned int version; + unsigned long chip_id = ids->driver_data; + const struct of_device_id *match; + bool status_off = false; + int ret; + + if (client->dev.of_node) { + match = of_match_device(tps65217_of_match, &client->dev); + if (!match) { + dev_err(&client->dev, + "Failed to find matching dt id\n"); + return -EINVAL; + } + chip_id = (unsigned long)match->data; + status_off = of_property_read_bool(client->dev.of_node, + "ti,pmic-shutdown-controller"); + } + + if (!chip_id) { + dev_err(&client->dev, "id is null.\n"); + return -ENODEV; + } tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL); if (!tps) return -ENOMEM; - tps->pdata = pdata; + i2c_set_clientdata(client, tps); + tps->dev = &client->dev; + tps->id = chip_id; + tps->regmap = devm_regmap_init_i2c(client, &tps65217_regmap_config); if (IS_ERR(tps->regmap)) { ret = PTR_ERR(tps->regmap); @@ -158,8 +196,12 @@ static int __devinit tps65217_probe(struct i2c_client *client, return ret; } - i2c_set_clientdata(client, tps); - tps->dev = &client->dev; + ret = mfd_add_devices(tps->dev, -1, tps65217s, + ARRAY_SIZE(tps65217s), NULL, 0, NULL); + if (ret < 0) { + dev_err(tps->dev, "mfd_add_devices failed: %d\n", ret); + return ret; + } ret = tps65217_reg_read(tps, TPS65217_REG_CHIPID, &version); if (ret < 0) { @@ -168,54 +210,46 @@ static int __devinit tps65217_probe(struct i2c_client *client, return ret; } + /* Set the PMIC to shutdown on PWR_EN toggle */ + if (status_off) { + ret = tps65217_set_bits(tps, TPS65217_REG_STATUS, + TPS65217_STATUS_OFF, TPS65217_STATUS_OFF, + TPS65217_PROTECT_NONE); + if (ret) + dev_warn(tps->dev, "unable to set the status OFF\n"); + } + dev_info(tps->dev, "TPS65217 ID %#x version 1.%d\n", (version & TPS65217_CHIPID_CHIP_MASK) >> 4, version & TPS65217_CHIPID_REV_MASK); - for (i = 0; i < TPS65217_NUM_REGULATOR; i++) { - struct platform_device *pdev; - - pdev = platform_device_alloc("tps65217-pmic", i); - if (!pdev) { - dev_err(tps->dev, "Cannot create regulator %d\n", i); - continue; - } - - pdev->dev.parent = tps->dev; - platform_device_add_data(pdev, &pdata->tps65217_init_data[i], - sizeof(pdata->tps65217_init_data[i])); - tps->regulator_pdev[i] = pdev; - - platform_device_add(pdev); - } - return 0; } -static int __devexit tps65217_remove(struct i2c_client *client) +static int tps65217_remove(struct i2c_client *client) { struct tps65217 *tps = i2c_get_clientdata(client); - int i; - for (i = 0; i < TPS65217_NUM_REGULATOR; i++) - platform_device_unregister(tps->regulator_pdev[i]); + mfd_remove_devices(tps->dev); return 0; } static const struct i2c_device_id tps65217_id_table[] = { - {"tps65217", 0xF0}, - {/* end of list */} + {"tps65217", TPS65217}, + { /* sentinel */ } }; MODULE_DEVICE_TABLE(i2c, tps65217_id_table); static struct i2c_driver tps65217_driver = { .driver = { .name = "tps65217", + .owner = THIS_MODULE, + .of_match_table = tps65217_of_match, }, .id_table = tps65217_id_table, .probe = tps65217_probe, - .remove = __devexit_p(tps65217_remove), + .remove = tps65217_remove, }; static int __init tps65217_init(void) |