On 2018-07-19 15:43, Mircea Caprioru wrote:
> 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 V2 -> V3
> - formated dt-bindings commit message
> - added property for general purpose outputs
>
> .../devicetree/bindings/mux/adi,adgs1408.txt | 48 +++++++++++++++++++
> MAINTAINERS | 6 +++
> 2 files changed, 54 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..0a7b67023ef0
> --- /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 or 1
ADGS1408 has four GPOs, and it's five for 1409. So, you should adjust
the "0 or 1" copy-paste from the adg792a origin (which has two GPOs).
Cheers,
Peter
> + - 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
>
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