Commit Graph

4 Commits

Author SHA1 Message Date
David Lechner
475da4ee14 iio: dac: mcp4728: use devm_regulator_get_enable_read_voltage()
This makes use of the new devm_regulator_get_enable_read_voltage()
helper function to reduce boilerplate code in the MCP4728 DAC driver.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240712-iio-regulator-refactor-round-3-v1-2-835017bae43d@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-08-03 10:13:38 +01:00
David Lechner
ae40596980 iio: dac: mcp4728: rename err to ret in probe function
To prepare for using a function that returns a non-error value, rename
the variable 'err' to 'ret' in the probe function.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240712-iio-regulator-refactor-round-3-v1-1-835017bae43d@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-08-03 10:13:38 +01:00
Uwe Kleine-König
4391affa10 iio: Drop explicit initialization of struct i2c_device_id::driver_data to 0
These drivers don't use the driver_data member of struct i2c_device_id,
so don't explicitly initialize this member.

This prepares putting driver_data in an anonymous union which requires
either no initialization or named designators. But it's also a nice
cleanup on its own.

While add it, also remove commas after the sentinel entries.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20240508072928.2135858-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-05-27 09:48:57 +01:00
Andrea Collamati
7b24a034ad iio: add MCP4728 I2C DAC driver
MCP4728 is a 12-bit quad channel DAC with I2C interface.

support for:
 * per-channel gain
 * per-channel power state
 * per-channel power down mode control
 * per-channel vref selection internal/vdd
 * store current state to on-chip EEPROM

Signed-off-by: Andrea Collamati <andrea.collamati@gmail.com>
Link: https://lore.kernel.org/r/a0933003ed3c855f9d80d6ce0a40add2b6f0ba36.1691066050.git.andrea.collamati@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-08-05 19:29:39 +01:00