Adding documentation for adgs1408/1409 multiplexer. The bindings
follow the standard SPI and mux bindings and do not require any
additional custom properties.
Signed-off-by: Mircea Caprioru <mircea.caprioru@xxxxxxxxxx>
---
Changelog V3 -> V4
- fixed number of GPOs for ADGS1408 and ADGS1409
.../devicetree/bindings/mux/adi,adgs1408.txt | 49 +++++++++++++++++++
MAINTAINERS | 6 +++
2 files changed, 55 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mux/adi,adgs1408.txt
diff --git a/Documentation/devicetree/bindings/mux/adi,adgs1408.txt b/Documentation/devicetree/bindings/mux/adi,adgs1408.txt
new file mode 100644
index 000000000000..cc7698e7d1ff
--- /dev/null
+++ b/Documentation/devicetree/bindings/mux/adi,adgs1408.txt
@@ -0,0 +1,49 @@
+Bindings for Analog Devices ADGS1408/1409 8:1/Dual 4:1 Mux
+
+Required properties:
+- compatible : Should be one of
+ * "adi,adgs1408"
+ * "adi,adgs1409"
+* Standard mux-controller bindings as described in mux-controller.txt
+
+Optional properties for ADGS1408/1409:
+- gpio-controller : if present, #gpio-cells is required.
+- #gpio-cells : should be <2>
+ - First cell is the GPO line number, i.e. 0 to 3
+ for ADGS1408 and 0 to 4 for ADGS1409
+ - Second cell is used to specify active high (0)
+ or active low (1)
+
+Optional properties:
+- idle-state : if present, array of states that the mux controllers will have
+ when idle. The special state MUX_IDLE_AS_IS is the default and
+ MUX_IDLE_DISCONNECT is also supported.
+
+States 0 through 7 correspond to signals S1 through S8 in the datasheet.
+For ADGS1409 only states 0 to 3 are available.
+
+Example:
+
+ /*
+ * One mux controller.
+ * Mux state set to idle as is (no idle-state declared)
+ */
+ &spi0 {
+ mux: mux-controller@0 {
+ compatible = "adi,adgs1408";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ #mux-control-cells = <0>;
+ };
+ }
+
+ adc-mux {
+ compatible = "io-channel-mux";
+ io-channels = <&adc 1>;
+ io-channel-names = "parent";
+ mux-controls = <&mux>;
+
+ channels = "out_a0", "out_a1", "test0", "test1",
+ "out_b0", "out_b1", "testb0", "testb1";
+
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 192d7f73fd01..55dfdbf835c1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -810,6 +810,12 @@ L: linux-media@xxxxxxxxxxxxxxx
S: Maintained
F: drivers/media/i2c/ad9389b*
+ANALOG DEVICES INC ADGS1408 DRIVER
+M: Mircea Caprioru <mircea.caprioru@xxxxxxxxxx>
+S: Supported
+F: drivers/mux/adgs1408.c
+F: Documentation/devicetree/bindings/mux/adgs1408.txt
+
ANALOG DEVICES INC ADV7180 DRIVER
M: Lars-Peter Clausen <lars@xxxxxxxxxx>
L: linux-media@xxxxxxxxxxxxxxx
--
2.17.1
--
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