iio: core: Introduce IIO_ALTVOLTAGE and appropriate channel info elements

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/iio/industrialio-core.c

@@ -63,6 +63,7 @@ static const char * const iio_chan_type_name_spec[] = {
 	[IIO_ANGL] = "angl",
 	[IIO_TIMESTAMP] = "timestamp",
 	[IIO_CAPACITANCE] = "capacitance",
+	[IIO_ALTVOLTAGE] = "altvoltage",
 };
 
 static const char * const iio_modifier_names[] = {
@@ -88,6 +89,8 @@ static const char * const iio_chan_info_postfix[] = {
 	[IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY]
 	= "filter_low_pass_3db_frequency",
 	[IIO_CHAN_INFO_SAMP_FREQ] = "sampling_frequency",
+	[IIO_CHAN_INFO_FREQUENCY] = "frequency",
+	[IIO_CHAN_INFO_PHASE] = "phase",
 };
 
 const struct iio_chan_spec

include/linux/iio/iio.h

@@ -32,6 +32,8 @@ enum iio_chan_info_enum {
 	IIO_CHAN_INFO_AVERAGE_RAW,
 	IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY,
 	IIO_CHAN_INFO_SAMP_FREQ,
+	IIO_CHAN_INFO_FREQUENCY,
+	IIO_CHAN_INFO_PHASE,
 };
 
 #define IIO_CHAN_INFO_SHARED_BIT(type) BIT(type*2)
@@ -85,6 +87,14 @@ enum iio_chan_info_enum {
 	IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_SAMP_FREQ)
 #define IIO_CHAN_INFO_SAMP_FREQ_SHARED_BIT			\
 	IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_SAMP_FREQ)
+#define IIO_CHAN_INFO_FREQUENCY_SEPARATE_BIT			\
+	IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_FREQUENCY)
+#define IIO_CHAN_INFO_FREQUENCY_SHARED_BIT			\
+	IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_FREQUENCY)
+#define IIO_CHAN_INFO_PHASE_SEPARATE_BIT			\
+	IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_PHASE)
+#define IIO_CHAN_INFO_PHASE_SHARED_BIT			\
+	IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_PHASE)
 
 enum iio_endian {
 	IIO_CPU,

include/linux/iio/types.h

@@ -27,6 +27,7 @@ enum iio_chan_type {
 	IIO_ANGL,
 	IIO_TIMESTAMP,
 	IIO_CAPACITANCE,
+	IIO_ALTVOLTAGE,
 };
 
 enum iio_modifier {