diff options
author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2013-11-19 12:52:29 -0800 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2013-11-25 18:27:56 -0800 |
commit | fd91a5f01373ebf672a6691f4dcd487af48be945 (patch) | |
tree | 5ecc838cc5e020e1b1f12a40762369cde23c423a | |
parent | f261d46551275abc9e92b24773b15fbb82153b63 (diff) |
Input: tsc2007 - convert to use devres-managed resources
This simplifies error handling path and allows us get rid of
tsc2007_remove().
Tested-by: Denis Carikli <denis@eukrea.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
-rw-r--r-- | drivers/input/touchscreen/tsc2007.c | 79 |
1 files changed, 40 insertions, 39 deletions
diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c index 03fbdf1e8613..1bf9906b5a3f 100644 --- a/drivers/input/touchscreen/tsc2007.c +++ b/drivers/input/touchscreen/tsc2007.c @@ -365,6 +365,14 @@ static int tsc2007_probe_pdev(struct i2c_client *client, struct tsc2007 *ts, return 0; } +static void tsc2007_call_exit_platform_hw(void *data) +{ + struct device *dev = data; + const struct tsc2007_platform_data *pdata = dev_get_platdata(dev); + + pdata->exit_platform_hw(); +} + static int tsc2007_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -388,11 +396,9 @@ static int tsc2007_probe(struct i2c_client *client, if (err) return err; - input_dev = input_allocate_device(); - if (!input_dev) { - err = -ENOMEM; - goto err_free_input; - }; + input_dev = devm_input_allocate_device(&client->dev); + if (!input_dev) + return -ENOMEM; i2c_set_clientdata(client, ts); @@ -421,45 +427,41 @@ static int tsc2007_probe(struct i2c_client *client, input_set_abs_params(input_dev, ABS_PRESSURE, 0, MAX_12BIT, ts->fuzzz, 0); - if (pdata && pdata->init_platform_hw) - pdata->init_platform_hw(); + if (pdata) { + if (pdata->exit_platform_hw) { + err = devm_add_action(&client->dev, + tsc2007_call_exit_platform_hw, + &client->dev); + if (err) { + dev_err(&client->dev, + "Failed to register exit_platform_hw action, %d\n", + err); + return err; + } + } + + if (pdata->init_platform_hw) + pdata->init_platform_hw(); + } - err = request_threaded_irq(ts->irq, tsc2007_hard_irq, tsc2007_soft_irq, - IRQF_ONESHOT, client->dev.driver->name, ts); - if (err < 0) { - dev_err(&client->dev, "irq %d busy?\n", ts->irq); - goto err_free_input; + err = devm_request_threaded_irq(&client->dev, ts->irq, + tsc2007_hard_irq, tsc2007_soft_irq, + IRQF_ONESHOT, + client->dev.driver->name, ts); + if (err) { + dev_err(&client->dev, "Failed to request irq %d: %d\n", + ts->irq, err); + return err; } tsc2007_stop(ts); err = input_register_device(input_dev); - if (err) - goto err_free_irq; - - return 0; - - err_free_irq: - free_irq(ts->irq, ts); - if (pdata && pdata->exit_platform_hw) - pdata->exit_platform_hw(); - err_free_input: - input_free_device(input_dev); - return err; -} - -static int tsc2007_remove(struct i2c_client *client) -{ - const struct tsc2007_platform_data *pdata = dev_get_platdata(&client->dev); - struct tsc2007 *ts = i2c_get_clientdata(client); - - free_irq(ts->irq, ts); - - if (pdata && pdata->exit_platform_hw) - pdata->exit_platform_hw(); - - input_unregister_device(ts->input); - kfree(ts); + if (err) { + dev_err(&client->dev, + "Failed to register input device: %d\n", err); + return err; + } return 0; } @@ -487,7 +489,6 @@ static struct i2c_driver tsc2007_driver = { }, .id_table = tsc2007_idtable, .probe = tsc2007_probe, - .remove = tsc2007_remove, }; module_i2c_driver(tsc2007_driver); |