Add supply, I2C and cathode voltage regulators to the sensor and enable them. This keeps the sensor powered on even after its only supply shared by another device shuts down.
Reported-by: Raymond Hackley <[email protected]> Reviewed-by: David Lechner <[email protected]> Signed-off-by: Erikas Bitovtas <[email protected]> --- drivers/iio/light/vcnl4000.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c index 0a4d82679cfe..5d1408aca562 100644 --- a/drivers/iio/light/vcnl4000.c +++ b/drivers/iio/light/vcnl4000.c @@ -24,6 +24,7 @@ #include <linux/interrupt.h> #include <linux/module.h> #include <linux/pm_runtime.h> +#include <linux/regulator/consumer.h> #include <linux/units.h> #include <linux/iio/buffer.h> @@ -1985,6 +1986,7 @@ static int vcnl4010_probe_trigger(struct iio_dev *indio_dev) static int vcnl4000_probe(struct i2c_client *client) { const struct i2c_device_id *id = i2c_client_get_device_id(client); + const char * const regulator_names[] = { "vdd", "vddio", "vled" }; struct device *dev = &client->dev; struct vcnl4000_data *data; struct iio_dev *indio_dev; @@ -2000,6 +2002,11 @@ static int vcnl4000_probe(struct i2c_client *client) data->id = id->driver_data; data->chip_spec = &vcnl4000_chip_spec_cfg[data->id]; + ret = devm_regulator_bulk_get_enable(dev, ARRAY_SIZE(regulator_names), + regulator_names); + if (ret) + return ret; + ret = devm_mutex_init(dev, &data->vcnl4000_lock); if (ret) return ret; -- 2.53.0
