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iio: adc: meson: add enum for iio channel numbers 

Channels could be referenced in the driver code and using enum allows
to make it more robust.

Signed-off-by: George Stark <GNStark@sberdevices.ru>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230714114010.293440-5-gnstark@sberdevices.ru
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
George Stark 2023-07-14 14:37:51 +03:00 committed by Jonathan Cameron
parent 2b592ff48e
commit c38180bf3d
1 changed files with 29 additions and 17 deletions
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46
drivers/iio/adc/meson_saradc.c
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@ -224,27 +224,39 @@ enum meson_sar_adc_chan7_mux_sel {
CHAN7_MUX_CH7_INPUT = 0x7,
};
enum meson_sar_adc_channel_index {
NUM_CHAN_0,
NUM_CHAN_1,
NUM_CHAN_2,
NUM_CHAN_3,
NUM_CHAN_4,
NUM_CHAN_5,
NUM_CHAN_6,
NUM_CHAN_7,
NUM_CHAN_TEMP,
};
static const struct iio_chan_spec meson_sar_adc_iio_channels[] = {
MESON_SAR_ADC_CHAN(0),
MESON_SAR_ADC_CHAN(1),
MESON_SAR_ADC_CHAN(2),
MESON_SAR_ADC_CHAN(3),
MESON_SAR_ADC_CHAN(4),
MESON_SAR_ADC_CHAN(5),
MESON_SAR_ADC_CHAN(6),
MESON_SAR_ADC_CHAN(7),
MESON_SAR_ADC_CHAN(NUM_CHAN_0),
MESON_SAR_ADC_CHAN(NUM_CHAN_1),
MESON_SAR_ADC_CHAN(NUM_CHAN_2),
MESON_SAR_ADC_CHAN(NUM_CHAN_3),
MESON_SAR_ADC_CHAN(NUM_CHAN_4),
MESON_SAR_ADC_CHAN(NUM_CHAN_5),
MESON_SAR_ADC_CHAN(NUM_CHAN_6),
MESON_SAR_ADC_CHAN(NUM_CHAN_7),
};
static const struct iio_chan_spec meson_sar_adc_and_temp_iio_channels[] = {
MESON_SAR_ADC_CHAN(0),
MESON_SAR_ADC_CHAN(1),
MESON_SAR_ADC_CHAN(2),
MESON_SAR_ADC_CHAN(3),
MESON_SAR_ADC_CHAN(4),
MESON_SAR_ADC_CHAN(5),
MESON_SAR_ADC_CHAN(6),
MESON_SAR_ADC_CHAN(7),
MESON_SAR_ADC_TEMP_CHAN(8),
MESON_SAR_ADC_CHAN(NUM_CHAN_0),
MESON_SAR_ADC_CHAN(NUM_CHAN_1),
MESON_SAR_ADC_CHAN(NUM_CHAN_2),
MESON_SAR_ADC_CHAN(NUM_CHAN_3),
MESON_SAR_ADC_CHAN(NUM_CHAN_4),
MESON_SAR_ADC_CHAN(NUM_CHAN_5),
MESON_SAR_ADC_CHAN(NUM_CHAN_6),
MESON_SAR_ADC_CHAN(NUM_CHAN_7),
MESON_SAR_ADC_TEMP_CHAN(NUM_CHAN_TEMP),
};
struct meson_sar_adc_param {