On Wed, 31 Jul 2024 12:07:02 +0530 Abhash Jha <abhashkumarjha123@xxxxxxxxx> wrote: > Hello, > Don't change the cover letter title between versions. It makes them hard to track. That title should not reflect changes form previous version and it should always tell us which driver the modifications are being made to! > The first patch in the series adds support for configuring the gain and > resolution(integration time) of the ltr390 sensor by writing to the > respective registers. Then the available values for gain and resolution > that are listed in the datasheet are provided via the `read_avail` > callback. > > The second patch adds a new channel for the ALS feature of the sensor. > The same configuration of gain and resolution has to be provided for this > channel as well. As there are two IIO channels now, we would need to > switch the sensor's mode of operation depending on which sensor is being > accessed. Hence, mode switching is also provided. > > Then the third patch adds support for calculating `counts_per_uvi` based > on the current gain and resolution value. > > Changes in v5: > - Replaced the IIO_INTENSITY channel with IIO_LIGHT channel > - We calculate the lux value directly using `als_data / (gain * int_time)` > - Provided a scale channel where the scale is 0.6 * WINDOW_FACTOR > - Link to v4: https://lore.kernel.org/linux-iio/20240730065822.5707-1-abhashkumarjha123@xxxxxxxxx/T/#m > > Changes in v4: > - Added "bitfield.h" include to fix `-Wimplicit-function-declaration`. > - Link to v3: https://lore.kernel.org/linux-iio/20240729115056.355466-1-abhashkumarjha123@xxxxxxxxx/ > > Changes in v3: > - Added cover letter to the patch series. > - Fixed indentation in the patch description. > - Patch specific changes are listed below. > > [PATCH v3 1/3] > - Cleaned up the spurious changes made in v2. > - ltr390_set_int_time and ltr390_set_gain now return -EINVAL to > indicate no match. > > [PATCH v3 2/3] > - Used enum ltr390_mode inside the ltr390_data struct. > - Refactored `ltr390_set_mode` function according to the comments in v2. > > [PATCH v3 3/3] > - Simplified the formula for `counts_per_uvi` calculation. > - Removed spurious whitespace changes introduced in v2. > > - Link to v2: https://lore.kernel.org/linux-iio/20240728151957.310237-1-abhashkumarjha123@xxxxxxxxx/ > > Changes in v2: > - Split the single patch into 3 patches. > - Used FIELD_PREP to perform bit shifting. > - Used enum for mode selection instead of defines. > - Fixed indentation and whitespace issues pointed out in the comments > - Replaced `mutex_lock(&data->lock)` with `guard(mutex)(&data->lock)` > - Provided available values for gain and resolution via `read_avail` > instead of sysfs attributes. > - Refactored `ltr390_set_gain` and `ltr390_set_int_time`. > - Used early returns instead of single exit points. > > - Link to v1: https://lore.kernel.org/linux-iio/20240718104947.7384-1-abhashkumarjha123@xxxxxxxxx/ > > Regards, > Abhash > > Abhash Jha (3): > iio: light: ltr390: Add configurable gain and resolution > iio: light: ltr390: Add ALS channel and support for gain and > resolution > iio: light: ltr390: Calculate 'counts_per_uvi' dynamically > > drivers/iio/light/ltr390.c | 238 ++++++++++++++++++++++++++++++++++--- > 1 file changed, 220 insertions(+), 18 deletions(-) >
