From c80df483f61d0464224dc4386ced470c7275d78f Mon Sep 17 00:00:00 2001 From: Pantelis Antoniou Date: Sat, 13 Oct 2012 16:37:24 +0300 Subject: iio: ti_tscadc: provide datasheet_name and scan_type This patch provides the members "datasheet_name" and scan_type. This is the remaining part of the earlier patch where I (bigeasy) removed iio_map because it is now supplied by the device tree. It also static names as suggested by Jonathan. Acked-by: Jonathan Cameron Signed-off-by: Pantelis Antoniou Signed-off-by: Felipe Balbi Signed-off-by: Sebastian Andrzej Siewior --- drivers/iio/adc/ti_am335x_adc.c | 29 ++++++++++++++++++++++++----- 1 file changed, 24 insertions(+), 5 deletions(-) diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c index 2868c0c1b7e..9939810954f 100644 --- a/drivers/iio/adc/ti_am335x_adc.c +++ b/drivers/iio/adc/ti_am335x_adc.c @@ -24,6 +24,8 @@ #include #include #include +#include +#include #include @@ -84,29 +86,46 @@ static void tiadc_step_config(struct tiadc_device *adc_dev) am335x_tsc_se_set(adc_dev->mfd_tscadc, step_en); } +static const char * const chan_name_ain[] = { + "AIN0", + "AIN1", + "AIN2", + "AIN3", + "AIN4", + "AIN5", + "AIN6", + "AIN7", +}; + static int tiadc_channel_init(struct iio_dev *indio_dev, int channels) { + struct tiadc_device *adc_dev = iio_priv(indio_dev); struct iio_chan_spec *chan_array; + struct iio_chan_spec *chan; int i; indio_dev->num_channels = channels; - chan_array = kcalloc(indio_dev->num_channels, + chan_array = kcalloc(channels, sizeof(struct iio_chan_spec), GFP_KERNEL); - if (chan_array == NULL) return -ENOMEM; - for (i = 0; i < (indio_dev->num_channels); i++) { - struct iio_chan_spec *chan = chan_array + i; + chan = chan_array; + for (i = 0; i < channels; i++, chan++) { + chan->type = IIO_VOLTAGE; chan->indexed = 1; chan->channel = i; chan->info_mask_separate = BIT(IIO_CHAN_INFO_RAW); + chan->datasheet_name = chan_name_ain[i]; + chan->scan_type.sign = 'u'; + chan->scan_type.realbits = 12; + chan->scan_type.storagebits = 32; } indio_dev->channels = chan_array; - return indio_dev->num_channels; + return 0; } static void tiadc_channels_remove(struct iio_dev *indio_dev) -- cgit v1.2.3-70-g09d2