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iio: mxs-lradc: add datasheet name for every usable channel
In order to provide a channel name to in kernel consumers add the datasheet names for every usable AD channel. Since the channel names differ between i.MX23 and i.MX28, we need to separate the channel specs. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Marek Vasut <marex@denx.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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@ -1365,7 +1365,7 @@ static const struct iio_buffer_setup_ops mxs_lradc_buffer_ops = {
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* Driver initialization
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*/
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#define MXS_ADC_CHAN(idx, chan_type) { \
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#define MXS_ADC_CHAN(idx, chan_type, name) { \
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.type = (chan_type), \
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.indexed = 1, \
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.scan_index = (idx), \
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@ -1378,17 +1378,18 @@ static const struct iio_buffer_setup_ops mxs_lradc_buffer_ops = {
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.realbits = LRADC_RESOLUTION, \
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.storagebits = 32, \
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}, \
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.datasheet_name = (name), \
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}
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static const struct iio_chan_spec mxs_lradc_chan_spec[] = {
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MXS_ADC_CHAN(0, IIO_VOLTAGE),
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MXS_ADC_CHAN(1, IIO_VOLTAGE),
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MXS_ADC_CHAN(2, IIO_VOLTAGE),
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MXS_ADC_CHAN(3, IIO_VOLTAGE),
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MXS_ADC_CHAN(4, IIO_VOLTAGE),
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MXS_ADC_CHAN(5, IIO_VOLTAGE),
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MXS_ADC_CHAN(6, IIO_VOLTAGE),
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MXS_ADC_CHAN(7, IIO_VOLTAGE),
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static const struct iio_chan_spec mx23_lradc_chan_spec[] = {
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MXS_ADC_CHAN(0, IIO_VOLTAGE, "LRADC0"),
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MXS_ADC_CHAN(1, IIO_VOLTAGE, "LRADC1"),
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MXS_ADC_CHAN(2, IIO_VOLTAGE, "LRADC2"),
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MXS_ADC_CHAN(3, IIO_VOLTAGE, "LRADC3"),
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MXS_ADC_CHAN(4, IIO_VOLTAGE, "LRADC4"),
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MXS_ADC_CHAN(5, IIO_VOLTAGE, "LRADC5"),
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MXS_ADC_CHAN(6, IIO_VOLTAGE, "VDDIO"),
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MXS_ADC_CHAN(7, IIO_VOLTAGE, "VBATT"),
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/* Combined Temperature sensors */
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{
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.type = IIO_TEMP,
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@ -1399,6 +1400,7 @@ static const struct iio_chan_spec mxs_lradc_chan_spec[] = {
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BIT(IIO_CHAN_INFO_SCALE),
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.channel = 8,
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.scan_type = {.sign = 'u', .realbits = 18, .storagebits = 32,},
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.datasheet_name = "TEMP_DIE",
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},
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/* Hidden channel to keep indexes */
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{
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@ -1407,12 +1409,48 @@ static const struct iio_chan_spec mxs_lradc_chan_spec[] = {
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.scan_index = -1,
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.channel = 9,
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},
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MXS_ADC_CHAN(10, IIO_VOLTAGE),
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MXS_ADC_CHAN(11, IIO_VOLTAGE),
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MXS_ADC_CHAN(12, IIO_VOLTAGE),
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MXS_ADC_CHAN(13, IIO_VOLTAGE),
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MXS_ADC_CHAN(14, IIO_VOLTAGE),
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MXS_ADC_CHAN(15, IIO_VOLTAGE),
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MXS_ADC_CHAN(10, IIO_VOLTAGE, NULL),
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MXS_ADC_CHAN(11, IIO_VOLTAGE, NULL),
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MXS_ADC_CHAN(12, IIO_VOLTAGE, "USB_DP"),
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MXS_ADC_CHAN(13, IIO_VOLTAGE, "USB_DN"),
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MXS_ADC_CHAN(14, IIO_VOLTAGE, "VBG"),
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MXS_ADC_CHAN(15, IIO_VOLTAGE, "VDD5V"),
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};
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static const struct iio_chan_spec mx28_lradc_chan_spec[] = {
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MXS_ADC_CHAN(0, IIO_VOLTAGE, "LRADC0"),
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MXS_ADC_CHAN(1, IIO_VOLTAGE, "LRADC1"),
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MXS_ADC_CHAN(2, IIO_VOLTAGE, "LRADC2"),
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MXS_ADC_CHAN(3, IIO_VOLTAGE, "LRADC3"),
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MXS_ADC_CHAN(4, IIO_VOLTAGE, "LRADC4"),
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MXS_ADC_CHAN(5, IIO_VOLTAGE, "LRADC5"),
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MXS_ADC_CHAN(6, IIO_VOLTAGE, "LRADC6"),
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MXS_ADC_CHAN(7, IIO_VOLTAGE, "VBATT"),
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/* Combined Temperature sensors */
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{
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.type = IIO_TEMP,
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.indexed = 1,
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.scan_index = 8,
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.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
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BIT(IIO_CHAN_INFO_OFFSET) |
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BIT(IIO_CHAN_INFO_SCALE),
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.channel = 8,
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.scan_type = {.sign = 'u', .realbits = 18, .storagebits = 32,},
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.datasheet_name = "TEMP_DIE",
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},
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/* Hidden channel to keep indexes */
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{
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.type = IIO_TEMP,
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.indexed = 1,
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.scan_index = -1,
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.channel = 9,
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},
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MXS_ADC_CHAN(10, IIO_VOLTAGE, "VDDIO"),
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MXS_ADC_CHAN(11, IIO_VOLTAGE, "VTH"),
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MXS_ADC_CHAN(12, IIO_VOLTAGE, "VDDA"),
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MXS_ADC_CHAN(13, IIO_VOLTAGE, "VDDD"),
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MXS_ADC_CHAN(14, IIO_VOLTAGE, "VBG"),
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MXS_ADC_CHAN(15, IIO_VOLTAGE, "VDD5V"),
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};
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static int mxs_lradc_hw_init(struct mxs_lradc *lradc)
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@ -1608,10 +1646,16 @@ static int mxs_lradc_probe(struct platform_device *pdev)
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iio->dev.parent = &pdev->dev;
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iio->info = &mxs_lradc_iio_info;
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iio->modes = INDIO_DIRECT_MODE;
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iio->channels = mxs_lradc_chan_spec;
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iio->num_channels = ARRAY_SIZE(mxs_lradc_chan_spec);
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iio->masklength = LRADC_MAX_TOTAL_CHANS;
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if (lradc->soc == IMX23_LRADC) {
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iio->channels = mx23_lradc_chan_spec;
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iio->num_channels = ARRAY_SIZE(mx23_lradc_chan_spec);
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} else {
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iio->channels = mx28_lradc_chan_spec;
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iio->num_channels = ARRAY_SIZE(mx28_lradc_chan_spec);
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}
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ret = iio_triggered_buffer_setup(iio, &iio_pollfunc_store_time,
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&mxs_lradc_trigger_handler,
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&mxs_lradc_buffer_ops);
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