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authorMircea Caprioru <mircea.caprioru@analog.com>2018-08-01 10:37:39 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-08-02 10:23:01 +0200
commit94aea0c6f7bdb5d224b1f48ab0e93f40bf447a4c (patch)
tree762bbfbf88b3345a8e85aa462fc66e53ad193a31
parent572086325ce9a9e348b8748e830653f3959e88b6 (diff)
dt-bindings: mux: add adi,adgs1408
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@analog.com> Reviewed-by: Rob Herring <robh@kernel.org> [peda: reword idle-state to non-array for singular mux controller] Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--Documentation/devicetree/bindings/mux/adi,adgs1408.txt48
-rw-r--r--MAINTAINERS6
2 files changed, 54 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mux/adi,adgs1408.txt b/Documentation/devicetree/bindings/mux/adi,adgs1408.txt
new file mode 100644
index 000000000000..be6947f4d86b
--- /dev/null
+++ b/Documentation/devicetree/bindings/mux/adi,adgs1408.txt
@@ -0,0 +1,48 @@
+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, the state that the mux controller 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 f53d58a3b47e..3464b94bf56a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -810,6 +810,12 @@ L: linux-media@vger.kernel.org
S: Maintained
F: drivers/media/i2c/ad9389b*
+ANALOG DEVICES INC ADGS1408 DRIVER
+M: Mircea Caprioru <mircea.caprioru@analog.com>
+S: Supported
+F: drivers/mux/adgs1408.c
+F: Documentation/devicetree/bindings/mux/adgs1408.txt
+
ANALOG DEVICES INC ADV7180 DRIVER
M: Lars-Peter Clausen <lars@metafoo.de>
L: linux-media@vger.kernel.org