Merge branch 'cpufreq/arm/linux-next' of git://git.kernel.org/pub/scm/linux/kernel...
[linux-2.6-microblaze.git] / Documentation / devicetree / bindings / sound / rockchip,rk3328-codec.txt
1 * Rockchip Rk3328 internal codec
2
3 Required properties:
4
5 - compatible: "rockchip,rk3328-codec"
6 - reg: physical base address of the controller and length of memory mapped
7   region.
8 - rockchip,grf: the phandle of the syscon node for GRF register.
9 - clocks: a list of phandle + clock-specifer pairs, one for each entry in clock-names.
10 - clock-names: should be "pclk".
11 - spk-depop-time-ms: speak depop time msec.
12
13 Optional properties:
14
15 - mute-gpios: GPIO specifier for external line driver control (typically the
16               dedicated GPIO_MUTE pin)
17
18 Example for rk3328 internal codec:
19
20 codec: codec@ff410000 {
21         compatible = "rockchip,rk3328-codec";
22         reg = <0x0 0xff410000 0x0 0x1000>;
23         rockchip,grf = <&grf>;
24         clocks = <&cru PCLK_ACODEC>;
25         clock-names = "pclk";
26         mute-gpios = <&grf_gpio 0 GPIO_ACTIVE_LOW>;
27         spk-depop-time-ms = 100;
28 };