| Message ID | 20200709152200.10039-4-contact@artur-rojek.eu (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | iio/adc: ingenic: Cleanups & add touchscreen mode. | expand |
On Thu, 9 Jul 2020 17:21:57 +0200 Artur Rojek <contact@artur-rojek.eu> wrote: > Provide an of_xlate callback in order to retrieve the correct channel > specifier index from the IIO channels array. > > Signed-off-by: Artur Rojek <contact@artur-rojek.eu> > Tested-by: Paul Cercueil <paul@crapouillou.net> Applied. Thanks, Jonathan > --- > > Changes: > > v2-v8: no change > > drivers/iio/adc/ingenic-adc.c | 16 ++++++++++++++++ > 1 file changed, 16 insertions(+) > > diff --git a/drivers/iio/adc/ingenic-adc.c b/drivers/iio/adc/ingenic-adc.c > index c1946a9f1cca..89019fb59d48 100644 > --- a/drivers/iio/adc/ingenic-adc.c > +++ b/drivers/iio/adc/ingenic-adc.c > @@ -400,6 +400,21 @@ static int ingenic_adc_read_raw(struct iio_dev *iio_dev, > } > } > > +static int ingenic_adc_of_xlate(struct iio_dev *iio_dev, > + const struct of_phandle_args *iiospec) > +{ > + int i; > + > + if (!iiospec->args_count) > + return -EINVAL; > + > + for (i = 0; i < iio_dev->num_channels; ++i) > + if (iio_dev->channels[i].channel == iiospec->args[0]) > + return i; > + > + return -EINVAL; > +} > + > static void ingenic_adc_clk_cleanup(void *data) > { > clk_unprepare(data); > @@ -409,6 +424,7 @@ static const struct iio_info ingenic_adc_info = { > .write_raw = ingenic_adc_write_raw, > .read_raw = ingenic_adc_read_raw, > .read_avail = ingenic_adc_read_avail, > + .of_xlate = ingenic_adc_of_xlate, > }; > > static const struct iio_chan_spec ingenic_channels[] = {
diff --git a/drivers/iio/adc/ingenic-adc.c b/drivers/iio/adc/ingenic-adc.c index c1946a9f1cca..89019fb59d48 100644 --- a/drivers/iio/adc/ingenic-adc.c +++ b/drivers/iio/adc/ingenic-adc.c @@ -400,6 +400,21 @@ static int ingenic_adc_read_raw(struct iio_dev *iio_dev, } } +static int ingenic_adc_of_xlate(struct iio_dev *iio_dev, + const struct of_phandle_args *iiospec) +{ + int i; + + if (!iiospec->args_count) + return -EINVAL; + + for (i = 0; i < iio_dev->num_channels; ++i) + if (iio_dev->channels[i].channel == iiospec->args[0]) + return i; + + return -EINVAL; +} + static void ingenic_adc_clk_cleanup(void *data) { clk_unprepare(data); @@ -409,6 +424,7 @@ static const struct iio_info ingenic_adc_info = { .write_raw = ingenic_adc_write_raw, .read_raw = ingenic_adc_read_raw, .read_avail = ingenic_adc_read_avail, + .of_xlate = ingenic_adc_of_xlate, }; static const struct iio_chan_spec ingenic_channels[] = {