This series adds power management for the hdc3020 humidity and temperature sensor as well as control over the reset signal the device provides. The hdc3020 carries out measurements automatically, which is not necessary in low-power modes. Furthermore, if the low-power configuration turns off the device, proper initialization is required to account for the setup times and initial status register value. This device provides an active low reset signal that must be handled if connected. This signal can be used by the driver to keep the device under minimal power consumption during low-power modes if the power supply stays active. This series uses char-misc-next as basis to include the last additions to the driver to handle events [1] as well as the fix to include the entries in the Makefile and Kconfig files [2]. [1] https://lore.kernel.org/linux-iio/20240214085350.19382-1-dima.fedrau@xxxxxxxxx/ [2] https://lore.kernel.org/linux-iio/20240121135123.71506-1-jic23@xxxxxxxxxx/ Signed-off-by: Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx> --- Changes in v3: - Drop unnecessary casting to void in dev_set_drvdata. - Call devm_add_action_or_reset right after powering on. - Link to v2: https://lore.kernel.org/r/20240226-hdc3020-pm-v2-0-cec6766086e8@xxxxxxxxx Changes in v2: - Trigger power off sequence if the power on sequence fails. - Check return value of hdc3020_power_on() in the probe. - Remove type casting for void pointer. - Link to v1: https://lore.kernel.org/r/20240220-hdc3020-pm-v1-0-d8e60dbe79e9@xxxxxxxxx --- Javier Carrasco (3): iio: humidity: hdc3020: add power management dt-bindings: iio: humidity: hdc3020: add reset-gpios iio: humidity: hdc3020: add reset management .../bindings/iio/humidity/ti,hdc3020.yaml | 5 + drivers/iio/humidity/hdc3020.c | 111 +++++++++++++++++---- 2 files changed, 97 insertions(+), 19 deletions(-) --- base-commit: d4551c189d6e6a3fcf7f625bd4b273e770fad35a change-id: 20240217-hdc3020-pm-177983de3cab Best regards, -- Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx>
