[PATCH 2/4] iio: dac: ad3530r: Add ABI file for the AD3530R DAC

From: Kim Seer Paller
Date: Tue Mar 18 2025 - 23:50:12 EST


Define muxout_select and muxout_select_available sysfs interface for the
AD3530R and AD3531R DAC.

Signed-off-by: Kim Seer Paller <kimseer.paller@xxxxxxxxxx>
---
.../ABI/testing/sysfs-bus-iio-dac-ad3530r | 68 ++++++++++++++++++++++
MAINTAINERS | 7 +++
2 files changed, 75 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio-dac-ad3530r b/Documentation/ABI/testing/sysfs-bus-iio-dac-ad3530r
new file mode 100644
index 0000000000000000000000000000000000000000..9d3126952fd1c5214afb895c4972dc4a891ed7d4
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-dac-ad3530r
@@ -0,0 +1,68 @@
+What: /sys/bus/iio/devices/iio:deviceX/muxout_select
+KernelVersion:
+Contact: linux-iio@xxxxxxxxxxxxxxx
+Description:
+ Selects which of the multiplexer's input signals will be
+ monitored on the MUX_OUT pin.
+ * powered_down - MUX_OUT pin is powered down. An 80kΩ impedance
+ can be seen at the MUX_OUT pin.
+ * vout0 - Voltage representation of VOUT0.
+ * iout0_source - Voltage representation of IOUT0 (source mode).
+ * iout0_sink - Voltage representation of IOUT0 (sink mode).
+ * vout1 - Voltage representation of VOUT1.
+ * iout1_source - Voltage representation of IOUT1 (source mode).
+ * iout1_sink - Voltage representation of IOUT1 (sink mode).
+ * vout2 - Voltage representation of VOUT2.
+ * iout2_source - Voltage representation of IOUT2 (source mode).
+ * iout2_sink - Voltage representation of IOUT2 (sink mode).
+ * vout3 - Voltage representation of VOUT3
+ * iout3_source - Voltage representation of IOUT3 (source mode).
+ * iout3_sink - Voltage representation of IOUT3 (sink mode).
+ * vout4 - Voltage representation of VOUT4.
+ * iout4_source - Voltage representation of IOUT4 (source mode).
+ * iout4_sink - Voltage representation of IOUT4 (sink mode).
+ * vout5 - Voltage representation of VOUT5.
+ * iout5_source - Voltage representation of IOUT5 (source mode).
+ * iout5_sink - Voltage representation of IOUT5 (sink mode).
+ * vout6 - Voltage representation of VOUT6.
+ * iout6_source - Voltage representation of IOUT6 (source mode).
+ * iout6_sink - Voltage representation of IOUT6 (sink mode).
+ * vout7 - Voltage representation of VOUT7.
+ * iout7_source - Voltage representation of IOUT7 (source mode).
+ * iout7_sink - Voltage representation of IOUT7 (sink mode).
+ * die_temp - Voltage representation of internal die temperature.
+ * agnd - MUX_OUT pin internally tied to AGND.
+
+What: /sys/bus/iio/devices/iio:deviceX/muxout_select_available
+KernelVersion:
+Contact: linux-iio@xxxxxxxxxxxxxxx
+Description:
+ Reading this returns the valid values that can be written to the
+ muxout_select attribute:
+ * powered_down
+ * vout0
+ * iout0_source
+ * iout0_sink
+ * vout1
+ * iout1_source
+ * iout1_sink
+ * vout2
+ * iout2_source
+ * iout2_sink
+ * vout3
+ * iout3_source
+ * iout3_sink
+ * vout4
+ * iout4_source
+ * iout4_sink
+ * vout5
+ * iout5_source
+ * iout5_sink
+ * vout6
+ * iout6_source
+ * iout6_sink
+ * vout7
+ * iout7_source
+ * iout7_sink
+ * die_temp
+ * agnd
diff --git a/MAINTAINERS b/MAINTAINERS
index ffdb3f21fc4fb35b349449afbb30fecd4fe72978..2d3c31c74594ca1934c67e7aad0a179feeaa39bf 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1289,6 +1289,13 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git
T: git git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git
F: drivers/net/amt.c

+ANALOG DEVICES INC AD3530R DRIVER
+M: Kim Seer Paller <kimseer.paller@xxxxxxxxxx>
+L: linux-iio@xxxxxxxxxxxxxxx
+S: Supported
+W: https://ez.analog.com/linux-software-drivers
+F: Documentation/ABI/testing/sysfs-bus-iio-dac-ad3530r
+
ANALOG DEVICES INC AD3552R DRIVER
M: Nuno Sá <nuno.sa@xxxxxxxxxx>
L: linux-iio@xxxxxxxxxxxxxxx

--
2.34.1