On Thu, 05 Sep 2024 17:17:32 +0200 Angelo Dureghello <adureghello@xxxxxxxxxxxx> wrote: > From: Angelo Dureghello <adureghello@xxxxxxxxxxxx> > > Extend backend features with new calls needed later on this > patchset from axi version of ad3552r. > > A bus type property has been added to the devicetree to > inform the backend about the type of bus (interface) in use > bu the IP. > > The follwoing calls are added: > > iio_backend_ext_sync_enable > enable synchronize channels on external trigger > iio_backend_ext_sync_disable > disable synchronize channels on external trigger > iio_backend_ddr_enable > enable ddr bus transfer > iio_backend_ddr_disable > disable ddr bus transfer > iio_backend_set_bus_mode > select the type of bus, so that specific read / write > operations are performed accordingly > iio_backend_buffer_enable > enable buffer > iio_backend_buffer_disable > disable buffer > iio_backend_data_transfer_addr > define the target register address where the DAC sample > will be written. > iio_backend_bus_reg_read > generic bus read, bus-type dependent > iio_backend_bus_read_write > generic bus write, bus-type dependent The RAMP_16 definition doesn't seem immediately connected to the rest. + I'm not sure what it is from the name. > > Signed-off-by: Angelo Dureghello <adureghello@xxxxxxxxxxxx> > --- > drivers/iio/industrialio-backend.c | 157 +++++++++++++++++++++++++++++++++++++ > include/linux/iio/backend.h | 33 ++++++++ > 2 files changed, 190 insertions(+) > > diff --git a/drivers/iio/industrialio-backend.c b/drivers/iio/industrialio-backend.c > index 20b3b5212da7..231bef4b560e 100644 > --- a/drivers/iio/industrialio-backend.c > +++ b/drivers/iio/industrialio-backend.c > @@ -718,6 +718,163 @@ static int __devm_iio_backend_get(struct device *dev, struct iio_backend *back) > return 0; > } > diff --git a/include/linux/iio/backend.h b/include/linux/iio/backend.h > index 37d56914d485..eb8c5bb74bb5 100644 > --- a/include/linux/iio/backend.h > +++ b/include/linux/iio/backend.h > > enum iio_backend_data_source { > IIO_BACKEND_INTERNAL_CONTINUOUS_WAVE, > IIO_BACKEND_EXTERNAL, > + IIO_BACKEND_INTERNAL_RAMP_16, Not obvious what this is so maybe this enum needs docs in general. > IIO_BACKEND_DATA_SOURCE_MAX > };