diff options
| -rw-r--r-- | drivers/mfd/tps6105x.c | 72 |
1 files changed, 43 insertions, 29 deletions
diff --git a/drivers/mfd/tps6105x.c b/drivers/mfd/tps6105x.c index 4a174cdb50b6..51c54951c220 100644 --- a/drivers/mfd/tps6105x.c +++ b/drivers/mfd/tps6105x.c @@ -64,27 +64,47 @@ static int tps6105x_startup(struct tps6105x *tps6105x) } /* - * MFD cells - we have one cell which is selected operation - * mode, and we always have a GPIO cell. + * MFD cells - we always have a GPIO cell and we have one cell + * which is selected operation mode. */ -static struct mfd_cell tps6105x_cells[] = { - { - /* name will be runtime assigned */ - .id = -1, - }, - { - .name = "tps6105x-gpio", - .id = -1, - }, +static struct mfd_cell tps6105x_gpio_cell = { + .name = "tps6105x-gpio", +}; + +static struct mfd_cell tps6105x_leds_cell = { + .name = "tps6105x-leds", +}; + +static struct mfd_cell tps6105x_flash_cell = { + .name = "tps6105x-flash", }; +static struct mfd_cell tps6105x_regulator_cell = { + .name = "tps6105x-regulator", +}; + +static int tps6105x_add_device(struct tps6105x *tps6105x, + struct mfd_cell *cell) +{ + cell->platform_data = tps6105x; + cell->pdata_size = sizeof(*tps6105x); + + return mfd_add_devices(&tps6105x->client->dev, + PLATFORM_DEVID_AUTO, cell, 1, NULL, 0, NULL); +} + static int tps6105x_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct tps6105x *tps6105x; struct tps6105x_platform_data *pdata; int ret; - int i; + + pdata = dev_get_platdata(&client->dev); + if (!pdata) { + dev_err(&client->dev, "missing platform data\n"); + return -ENODEV; + } tps6105x = devm_kmalloc(&client->dev, sizeof(*tps6105x), GFP_KERNEL); if (!tps6105x) @@ -96,7 +116,6 @@ static int tps6105x_probe(struct i2c_client *client, i2c_set_clientdata(client, tps6105x); tps6105x->client = client; - pdata = dev_get_platdata(&client->dev); tps6105x->pdata = pdata; ret = tps6105x_startup(tps6105x); @@ -105,38 +124,33 @@ static int tps6105x_probe(struct i2c_client *client, return ret; } - /* Remove warning texts when you implement new cell drivers */ + ret = tps6105x_add_device(tps6105x, &tps6105x_gpio_cell); + if (ret) + return ret; + switch (pdata->mode) { case TPS6105X_MODE_SHUTDOWN: dev_info(&client->dev, "present, not used for anything, only GPIO\n"); break; case TPS6105X_MODE_TORCH: - tps6105x_cells[0].name = "tps6105x-leds"; - dev_warn(&client->dev, - "torch mode is unsupported\n"); + ret = tps6105x_add_device(tps6105x, &tps6105x_leds_cell); break; case TPS6105X_MODE_TORCH_FLASH: - tps6105x_cells[0].name = "tps6105x-flash"; - dev_warn(&client->dev, - "flash mode is unsupported\n"); + ret = tps6105x_add_device(tps6105x, &tps6105x_flash_cell); break; case TPS6105X_MODE_VOLTAGE: - tps6105x_cells[0].name ="tps6105x-regulator"; + ret = tps6105x_add_device(tps6105x, &tps6105x_regulator_cell); break; default: + dev_warn(&client->dev, "invalid mode: %d\n", pdata->mode); break; } - /* Set up and register the platform devices. */ - for (i = 0; i < ARRAY_SIZE(tps6105x_cells); i++) { - /* One state holder for all drivers, this is simple */ - tps6105x_cells[i].platform_data = tps6105x; - tps6105x_cells[i].pdata_size = sizeof(*tps6105x); - } + if (ret) + mfd_remove_devices(&client->dev); - return mfd_add_devices(&client->dev, 0, tps6105x_cells, - ARRAY_SIZE(tps6105x_cells), NULL, 0, NULL); + return ret; } static int tps6105x_remove(struct i2c_client *client) |