From 3cc2fd275d94db40a380cf9b2c664eedaa275e9c Mon Sep 17 00:00:00 2001 From: Alexandru Ardelean Date: Sun, 26 Sep 2021 22:43:15 +0300 Subject: iio: adc: ad7291: convert probe to device-managed only This is a simple conversion for to device-managed with using devm_request_threaded_irq(), disabling the regulator via a devm_add_action_or_reset() hook and finally using devm_iio_device_register(). The i2c_set_clientdata() call is removed as it becomes redundant after this change. Signed-off-by: Alexandru Ardelean Link: https://lore.kernel.org/r/20210926194315.7742-1-aardelean@deviqon.com Signed-off-by: Jonathan Cameron --- drivers/iio/adc/ad7291.c | 70 +++++++++++++++--------------------------------- 1 file changed, 22 insertions(+), 48 deletions(-) (limited to 'drivers/iio') diff --git a/drivers/iio/adc/ad7291.c b/drivers/iio/adc/ad7291.c index 2301a0e27f23..e9129dac762f 100644 --- a/drivers/iio/adc/ad7291.c +++ b/drivers/iio/adc/ad7291.c @@ -460,6 +460,11 @@ static const struct iio_info ad7291_info = { .write_event_value = &ad7291_write_event_value, }; +static void ad7291_reg_disable(void *reg) +{ + regulator_disable(reg); +} + static int ad7291_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -473,8 +478,6 @@ static int ad7291_probe(struct i2c_client *client, chip = iio_priv(indio_dev); mutex_init(&chip->state_lock); - /* this is only used for device removal purposes */ - i2c_set_clientdata(client, indio_dev); chip->client = client; @@ -495,6 +498,11 @@ static int ad7291_probe(struct i2c_client *client, if (ret) return ret; + ret = devm_add_action_or_reset(&client->dev, ad7291_reg_disable, + chip->reg); + if (ret) + return ret; + chip->command |= AD7291_EXT_REF; } @@ -506,58 +514,25 @@ static int ad7291_probe(struct i2c_client *client, indio_dev->modes = INDIO_DIRECT_MODE; ret = ad7291_i2c_write(chip, AD7291_COMMAND, AD7291_RESET); - if (ret) { - ret = -EIO; - goto error_disable_reg; - } + if (ret) + return -EIO; ret = ad7291_i2c_write(chip, AD7291_COMMAND, chip->command); - if (ret) { - ret = -EIO; - goto error_disable_reg; - } + if (ret) + return -EIO; if (client->irq > 0) { - ret = request_threaded_irq(client->irq, - NULL, - &ad7291_event_handler, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, - id->name, - indio_dev); + ret = devm_request_threaded_irq(&client->dev, client->irq, + NULL, + &ad7291_event_handler, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + id->name, + indio_dev); if (ret) - goto error_disable_reg; + return ret; } - ret = iio_device_register(indio_dev); - if (ret) - goto error_unreg_irq; - - return 0; - -error_unreg_irq: - if (client->irq) - free_irq(client->irq, indio_dev); -error_disable_reg: - if (chip->reg) - regulator_disable(chip->reg); - - return ret; -} - -static int ad7291_remove(struct i2c_client *client) -{ - struct iio_dev *indio_dev = i2c_get_clientdata(client); - struct ad7291_chip_info *chip = iio_priv(indio_dev); - - iio_device_unregister(indio_dev); - - if (client->irq) - free_irq(client->irq, indio_dev); - - if (chip->reg) - regulator_disable(chip->reg); - - return 0; + return devm_iio_device_register(&client->dev, indio_dev); } static const struct i2c_device_id ad7291_id[] = { @@ -579,7 +554,6 @@ static struct i2c_driver ad7291_driver = { .of_match_table = ad7291_of_match, }, .probe = ad7291_probe, - .remove = ad7291_remove, .id_table = ad7291_id, }; module_i2c_driver(ad7291_driver); -- cgit v1.2.3