diff options
| author | Heiner Kallweit <hkallweit1@gmail.com> | 2019-05-16 23:13:09 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2019-05-17 19:29:40 +0200 |
| commit | b8f5fe3bc5b9318d95770a09a480c31aced20cd2 (patch) | |
| tree | ab82f4749c413824b6fe39bf0b763abaca19ad87 /Documentation | |
| parent | i2c: core: improve return value handling of i2c_new_device and i2c_new_dummy (diff) | |
| download | linux-b8f5fe3bc5b9318d95770a09a480c31aced20cd2.tar.xz linux-b8f5fe3bc5b9318d95770a09a480c31aced20cd2.zip | |
i2c: core: add device-managed version of i2c_new_dummy
i2c_new_dummy is typically called from the probe function of the
driver for the primary i2c client. It requires calls to
i2c_unregister_device in the error path of the probe function and
in the remove function.
This can be simplified by introducing a device-managed version.
Note the changed error case return value type: i2c_new_dummy returns
NULL whilst devm_i2c_new_dummy_device returns an ERR_PTR.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
[wsa: rename new functions and fix minor kdoc issues]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/driver-model/devres.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/driver-model/devres.txt b/Documentation/driver-model/devres.txt index 99994a461359..69c7fa7f616c 100644 --- a/Documentation/driver-model/devres.txt +++ b/Documentation/driver-model/devres.txt @@ -271,6 +271,9 @@ GPIO devm_gpio_request_one() devm_gpio_free() +I2C + devm_i2c_new_dummy_device() + IIO devm_iio_device_alloc() devm_iio_device_free() |