On 04/24/2014 11:46 AM, Tushar Behera wrote:
> The audio codec on Snow board, MAX98095 is connected on I2C7 bus.
> Also it requires the GPX1-7 line to be pulled up.
>
> Updated Snow DTS file to incorporate above changes and added a
> sound node to instantiate the I2S-based sound card.
>
> Signed-off-by: Tushar Behera <[email protected]>
> ---
> arch/arm/boot/dts/exynos5250-snow.dts | 32 ++++++++++++++++++++++++++++++++
> 1 file changed, 32 insertions(+)
>
> diff --git a/arch/arm/boot/dts/exynos5250-snow.dts
> b/arch/arm/boot/dts/exynos5250-snow.dts
> index 1bc9b50..f63df3c 100644
> --- a/arch/arm/boot/dts/exynos5250-snow.dts
> +++ b/arch/arm/boot/dts/exynos5250-snow.dts
> @@ -196,6 +196,38 @@
> };
> };
>
> + regulators {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + max98095-en-regulator {
> + compatible = "regulator-fixed";
> + gpio = <&gpx1 7 0>;
> + enable-active-high;
> + regulator-boot-on;
> + regulator-always-on;
> + };
> + };
> +
Instead of relying on regulator framework, I will add a related
pin-control entry and update sound node accordingly.
> + i2c@12CD0000 {
> + max98095: codec@11 {
> + compatible = "maxim,max98095";
> + reg = <0x11>;
> + };
> + };
> +
> + i2s0: i2s@03830000 {
> + status = "okay";
> + };
> +
> + sound {
> + compatible = "google,snow-audio-max98095";
> +
> + samsung,i2s-controller = <&i2s0>;
> + samsung,audio-codec = <&max98095>;
> + };
> +
> usb@12110000 {
> samsung,vbus-gpio = <&gpx1 1 0>;
> };
>
--
Tushar Behera
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