diff options
| author |   Artur Rojek <contact@artur-rojek.eu> | 2020-07-19 22:53:04 +0200 |
|---|---|---|
| committer |   Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2020-07-20 10:25:32 +0100 |
| commit | 155e41efe70bcd5f254e43d38c19f74b1378cd78 (patch) | |
| tree | 8c9388accc334db683355b0a246f285c1c0b7e58 /drivers/iio | |
| parent | IIO: Ingenic JZ47xx: Error check clk_enable calls. (diff) | |
| download | linux-dev-155e41efe70bcd5f254e43d38c19f74b1378cd78.tar.xz linux-dev-155e41efe70bcd5f254e43d38c19f74b1378cd78.zip | |
IIO: Ingenic JZ47xx: Add xlate cb to retrieve correct channel idx
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>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/adc/ingenic-adc.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/iio/adc/ingenic-adc.c b/drivers/iio/adc/ingenic-adc.c index 059c2573e4a9..a742724fa7e6 100644 --- a/drivers/iio/adc/ingenic-adc.c +++ b/drivers/iio/adc/ingenic-adc.c @@ -401,6 +401,21 @@ 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); @@ -410,6 +425,7 @@ 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[] = { |