The ad2s1210 does not contain any channel for the fclkin and fexcit. As
a result, it uses IIO_DEVICE_ATTR to expose this information. This patch
adds one channel for fclkin and another for fexcit. It also adds an enum
to easily address the correct channel.
Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@xxxxxxxxx>
---
drivers/staging/iio/resolver/ad2s1210.c | 43 ++++++++++++++++++++++-----------
1 file changed, 29 insertions(+), 14 deletions(-)
diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c
index ac13b99bd9cb..28c3fd439663 100644
--- a/drivers/staging/iio/resolver/ad2s1210.c
+++ b/drivers/staging/iio/resolver/ad2s1210.c
@@ -67,6 +67,11 @@ enum ad2s1210_mode {
MOD_RESERVED,
};
+enum ad2s1210_frequency_channel {
+ FCLKIN = 0,
+ FEXCIT,
+};
+
static const unsigned int ad2s1210_resolution_value[] = { 10, 12, 14, 16 };
struct ad2s1210_state {
@@ -88,6 +93,30 @@ static const int ad2s1210_mode_vals[4][2] = {
[MOD_CONFIG] = { 1, 0 },
};
+static const struct iio_chan_spec ad2s1210_channels[] = {
+ {
+ .type = IIO_ANGL,
+ .indexed = 1,
+ .channel = 0,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+ }, {
+ .type = IIO_ANGL_VEL,
+ .indexed = 1,
+ .channel = 0,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+ }, {
+ .type = IIO_CHAN_INFO_FREQUENCY,
+ .indexed = 1,
+ .channel = FCLKIN,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+ }, {
+ .type = IIO_CHAN_INFO_FREQUENCY,
+ .indexed = 1,
+ .channel = FEXCIT,
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+ },
+};
+
static inline void ad2s1210_set_mode(enum ad2s1210_mode mode,
struct ad2s1210_state *st)
{
@@ -552,20 +581,6 @@ static IIO_DEVICE_ATTR(lot_low_thrd, 0644,
ad2s1210_show_reg, ad2s1210_store_reg,
AD2S1210_REG_LOT_LOW_THRD);
-static const struct iio_chan_spec ad2s1210_channels[] = {
- {
- .type = IIO_ANGL,
- .indexed = 1,
- .channel = 0,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
- }, {
- .type = IIO_ANGL_VEL,
- .indexed = 1,
- .channel = 0,
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
- }
-};
-
static struct attribute *ad2s1210_attributes[] = {
&iio_dev_attr_fclkin.dev_attr.attr,
&iio_dev_attr_fexcit.dev_attr.attr,
--
2.16.2
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