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authorPantelis Antoniou <panto@antoniou-consulting.com>2012-10-13 16:37:24 +0300
committerSebastian Andrzej Siewior <bigeasy@linutronix.de>2013-06-12 18:50:20 +0200
commitc80df483f61d0464224dc4386ced470c7275d78f (patch)
treedd82608840876c8ffe0d51d87b2bd892206a6867 /drivers/iio
parent9e5775f31289fc9915e4a2e4077950ea9a5da0b4 (diff)
downloadop-kernel-dev-c80df483f61d0464224dc4386ced470c7275d78f.zip
op-kernel-dev-c80df483f61d0464224dc4386ced470c7275d78f.tar.gz
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 <jic23@kernel.org> Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/adc/ti_am335x_adc.c29
1 files changed, 24 insertions, 5 deletions
diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index 2868c0c..9939810 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -24,6 +24,8 @@
#include <linux/iio/iio.h>
#include <linux/of.h>
#include <linux/of_device.h>
+#include <linux/iio/machine.h>
+#include <linux/iio/driver.h>
#include <linux/mfd/ti_am335x_tscadc.h>
@@ -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)
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