[PATCH v6 3/3] arm: dts: Add support for ES8388 to the Radxa Rock 2

[Heiko Stuebner]

Hi Romain,

Am Donnerstag, 26. Januar 2017, 14:23:15 CET schrieb Romain Perier:
> This commit adds the DT definition of the es8388 i2c device
> found at address 0x10. It also adds the definition for connecting
> the Rockchip I2S to the es8388 analog output.
> 
> This commit is based on the initial work that was done by Sjoerd Simons
> <sjoerd.simons at collabora.com> with some improvements.
> 
> Signed-off-by: Romain Perier <romain.perier at collabora.com>
> ---
> 
> Changes in v6: None
> Changes in v5: None
> Changes in v4:
>  - Updated to the new DT binding
>  - Added the property 'rockchip,routing'
>  - Renamed the node sound_es8388 to sound_i2s
> Changes in v3: None
> Changes in v2: None
> 
>  arch/arm/boot/dts/rk3288-rock2-square.dts | 39
> +++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/rk3288-rock2-square.dts
> b/arch/arm/boot/dts/rk3288-rock2-square.dts index dd3ad2e..6b176b8 100644
> --- a/arch/arm/boot/dts/rk3288-rock2-square.dts
> +++ b/arch/arm/boot/dts/rk3288-rock2-square.dts
> @@ -86,6 +86,19 @@
>  		#sound-dai-cells = <0>;
>  	};
> 
> +	sound_i2s {
> +		compatible = "rockchip,rk3288-hdmi-analog";
> +		rockchip,model = "I2S";

Are you sure "I2S" is not to generic? Don't know enough about sound, but 
remember this somehow matching against possible alsa ucm profiles.

So this could maybe produce conflicts with such a generic name?


> +		rockchip,i2s-controller = <&i2s>;
> +		rockchip,audio-codec = <&es8388>;
> +		rockchip,routing = "Analog", "LOUT2",
> +				   "Analog", "ROUT2";
> +		rockchip,hp-en-gpios = <&gpio8 0 GPIO_ACTIVE_HIGH>;
> +		rockchip,hp-det-gpios = <&gpio7 7 GPIO_ACTIVE_HIGH>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&headphone>;
> +	};
> +
>  	sdio_pwrseq: sdio-pwrseq {
>  		compatible = "mmc-pwrseq-simple";
>  		clocks = <&hym8563>;
> @@ -173,10 +186,29 @@
>  	};
>  };
> 
> +&i2c2 {
> +	status = "okay";
> +
> +	es8388: es8388 at 10 {
> +		compatible = "everest,es8388", "everest,es8328";
> +		reg = <0x10>;
> +		AVDD-supply = <&vcca_codec>;
> +		DVDD-supply = <&vcca_codec>;

According to the schematics I have, this comes from
	vccio_codec
and thus from vcc_io

So please give the regulator node simply a second phandle, like
	vcc_io: vccio_codec: REG2 {

and reference the correct regulator here.
See DCDC_REG4 in rk3288-veyron.dtsi for reference.


> +		HPVDD-supply = <&vcca_codec>;
> +		PVDD-supply = <&vcca_codec>;

vccio_codec as well


> +		clocks = <&cru SCLK_I2S0_OUT>;
> +		clock-names = "i2s_clk_out";
> +	};
> +};
> +
>  &i2c5 {
>  	status = "okay";
>  };
> 
> +&i2s {
> +	status = "okay";
> +};
> +
>  &pinctrl {
>  	ir {
>  		ir_int: ir-int {
> @@ -190,6 +222,13 @@
>  		};
>  	};
> 
> +	sound {
> +		headphone: headphone {
> +			rockchip,pins = <8 0 RK_FUNC_GPIO &pcfg_pull_up>,
> +					<7 7 RK_FUNC_GPIO &pcfg_pull_none>;

please use real pin names from schematics fro pinctrl entries when they are 
known. This makes greping for things easier.

So please two separate definitions, "hp_det" and "phone_ctl".


Heiko