[PATCH 5/8] iio: Add channel for chromaticity

[Basavaraj Natikar <Basavaraj.Natikar@amd.com>]

In most cases, ambient color sensors also support the x and y light
colors, which represent the coordinates on the CIE 1931 chromaticity
diagram. Thus, add channel for chromaticity.

Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
---
 Documentation/ABI/testing/sysfs-bus-iio | 8 ++++++++
 drivers/iio/industrialio-core.c         | 1 +
 include/uapi/linux/iio/types.h          | 1 +
 tools/iio/iio_event_monitor.c           | 2 ++
 4 files changed, 12 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index a2854dc9a839..6a810771f5e4 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -2179,3 +2179,11 @@ Contact:	linux-iio@vger.kernel.org
 Description:
 		Number of conditions that must occur, during a running
 		period, before an event is generated.
+
+What:		/sys/bus/iio/devices/iio:deviceX/in_chromaticity_x_raw
+What:		/sys/bus/iio/devices/iio:deviceX/in_chromaticity_y_raw
+KernelVersion:	6.6
+Contact:	linux-iio@vger.kernel.org
+Description:
+		The x and y light color coordinate on the CIE 1931 chromaticity
+		diagram.
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index d752e9c0499b..c1df66cdfdf6 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -90,6 +90,7 @@ static const char * const iio_chan_type_name_spec[] = {
 	[IIO_POSITIONRELATIVE]  = "positionrelative",
 	[IIO_PHASE] = "phase",
 	[IIO_MASSCONCENTRATION] = "massconcentration",
+	[IIO_CHROMATICITY] = "chromaticity",
 };
 
 static const char * const iio_modifier_names[] = {
diff --git a/include/uapi/linux/iio/types.h b/include/uapi/linux/iio/types.h
index c79f2f046a0b..8952d48cfc64 100644
--- a/include/uapi/linux/iio/types.h
+++ b/include/uapi/linux/iio/types.h
@@ -47,6 +47,7 @@ enum iio_chan_type {
 	IIO_POSITIONRELATIVE,
 	IIO_PHASE,
 	IIO_MASSCONCENTRATION,
+	IIO_CHROMATICITY,
 };
 
 enum iio_modifier {
diff --git a/tools/iio/iio_event_monitor.c b/tools/iio/iio_event_monitor.c
index 0a5c2bb60030..115ba1fbf3ac 100644
--- a/tools/iio/iio_event_monitor.c
+++ b/tools/iio/iio_event_monitor.c
@@ -59,6 +59,7 @@ static const char * const iio_chan_type_name_spec[] = {
 	[IIO_POSITIONRELATIVE] = "positionrelative",
 	[IIO_PHASE] = "phase",
 	[IIO_MASSCONCENTRATION] = "massconcentration",
+	[IIO_CHROMATICITY] = "chromaticity",
 };
 
 static const char * const iio_ev_type_text[] = {
@@ -173,6 +174,7 @@ static bool event_is_known(struct iio_event_data *event)
 	case IIO_POSITIONRELATIVE:
 	case IIO_PHASE:
 	case IIO_MASSCONCENTRATION:
+	case IIO_CHROMATICITY:
 		break;
 	default:
 		return false;
-- 
2.25.1