On Thu, Apr 14, 2016 at 5:22 PM, <paul.handrigan@xxxxxxxxxx> wrote:
> From: Paul Handrigan <Paul.Handrigan@xxxxxxxxxx>
Please send to DT list.
> Add device tree bindings file for the cs35l33 8V boosted
> class D amplifier.
>
> Signed-off-by: Paul Handrigan <Paul.Handrigan@xxxxxxxxxx>
> ---
> .../devicetree/bindings/sound/cs35l33.txt | 69 ++++++++++++++++++++++
> 1 file changed, 69 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/sound/cs35l33.txt
>
> diff --git a/Documentation/devicetree/bindings/sound/cs35l33.txt b/Documentation/devicetree/bindings/sound/cs35l33.txt
> new file mode 100644
> index 0000000..434250c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/cs35l33.txt
> @@ -0,0 +1,69 @@
> +CS35L33 Speaker Amplifier
> +
> +Required properties:
> +
> + - compatible : "cirrus,cs35l33"
> +
> + - reg : the I2C address of the device for I2C
> +
> + - VA-supply, VP-supply : power supplies for the device,
> + as covered in
> + Documentation/devicetree/bindings/regulator/regulator.txt.
> +
> +Optional properties:
> +
> + - cirrus,reset-gpios : gpio used to reset the amplifier
reset-gpios is common enough you can drop cirrus.
> + - interrupt-parent : Specifies the phandle of the interrupt controller to
> + which the IRQs from CS35L33 are delivered to.
> + - interrupts : IRQ line info CS35L33.
> + (See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
> + for further information relating to interrupt properties)
> +
> + - cirrus,boost-ctl : Booster voltage use to supply the amp, if this is not
> + set then the internal 1.0V LDO will supply the amp.
boolean or ?...
> + - cirrus,ramp-rate : On power up, it affects the time from when the power
> + up sequence begins to the time the audio reaches a full-scale output.
> + On power down, it affects the time from when the power-down sequence
> + begins to when the amplifier disables the PWM outputs. If this property
> + is not set then soft ramping will be disabled and ramp time would be
> + 20ms. If this property is set to 0,1,2,3 then ramp times would be 40ms,
> + 60ms,100ms,175ms respectively for 48KHz sample rate.
> +
> + - cirrus,boost-ipk : Booster peak current
Add unit prefix.
> +
> + - cirrus,hg-algo : parameters for internal h/g algorithm that controls
> + the amplifier supplies
Doesn't match the example.
> +
> +Example:
> +
> +cs35l33: cs35l33@40 {
> + compatible = "cirrus,cs35l33";
> + reg = <0x40>;
> +
> + VA-supply = <&ldo5_reg>;
> + VP-supply = <&ldo5_reg>;
> +
> + interrupt-parent = <&gpio8>;
> + interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
> +
> + reset-gpios = <&cs47l91 34 0>;
> +
> + ramp-rate = <0x0>;
> + boost-ctl = <0x0>;
> + boost-ipk = <0xE0>;
> +
> + hg-algo {
> + mem-depth = <0x3>;
> + release-rate = <0x3>;
> + hd-rm = <0xA>;
> + ldo-thld = <0x1>;
> + ldo-path-disable = <0x0>;
> + ldo-entry-delay=<0x4>;
> + vp-hg-auto;
> + vp-hg=<0xF>;
> + vp-hg-rate=<0x2>;
> + vp-hg-va=<0x0>;
> + };
> +};
> --
> 1.9.1
>
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