[PATCH] ARM: dts: add BeagleBone Audio Cape (Rev A) dtsi

[Tony Lindgren]

* Jack Mitchell <ml at embed.me.uk> [140122 03:09]:
> From: Jack Mitchell <jack at embed.me.uk>
> 
> Devicetree include file for setting up the am335x mcasp bus, i2c-2
> bus, and audio codec required for a functioning BeagleBone Audio Cape.
> 
> Signed-off-by: Jack Mitchell <jack at embed.me.uk>
> Signed-off-by: Matt Porter <mporter at linaro.org>
> ---
>  arch/arm/boot/dts/am335x-bone-audio-cape-reva.dtsi | 124 +++++++++++++++++++++
>  arch/arm/boot/dts/am335x-bone-common.dtsi          |  14 +++
>  2 files changed, 138 insertions(+)
>  create mode 100644 arch/arm/boot/dts/am335x-bone-audio-cape-reva.dtsi
> 
> diff --git a/arch/arm/boot/dts/am335x-bone-audio-cape-reva.dtsi b/arch/arm/boot/dts/am335x-bone-audio-cape-reva.dtsi
> new file mode 100644
> index 0000000..b8ec3dc
> --- /dev/null
> +++ b/arch/arm/boot/dts/am335x-bone-audio-cape-reva.dtsi
> @@ -0,0 +1,124 @@
> +/*
> + * Copyright (C) 2014 Jack Mitchell <jack at embed.me.uk>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + * In order to enable the BeagleBone Audio Cape this dtsi must be
> + * incuded in the top level dts. On BeagleBone Black hardware the
> + * status of the HDMI dts node must also be set to "disabled".

Seems like this is unsafe to merge then? This probably also needs
comments from Peter Ujfalusi, added him to Cc.

Regards,

Tony

> + * --- a/arch/arm/boot/dts/am335x-bone.dts
> + * +++ b/arch/arm/boot/dts/am335x-bone.dts
> + * @@ -9,6 +9,7 @@
> + *
> + *  #include "am33xx.dtsi"
> + *  #include "am335x-bone-common.dtsi"
> + * +#include "am335x-bone-audio-cape-reva.dtsi"
> + *
> + *  &ldo3_reg {
> + *  	regulator-min-microvolt = <1800000>;
> + *
> + * On BeagleBone Black hardware the status of the HDMI dts node must
> + * also be set to "disabled"
> + *
> + * --- a/arch/arm/boot/dts/am335x-boneblack.dts
> + * +++ b/arch/arm/boot/dts/am335x-boneblack.dts
> + * @@ -73,6 +74,6 @@
> + *  		pinctrl-names = "default", "off";
> + *  		pinctrl-0 = <&nxp_hdmi_bonelt_pins>;
> + *  		pinctrl-1 = <&nxp_hdmi_bonelt_off_pins>;
> + * -		status = "okay";
> + * +		status = "disabled";
> + *  	};
> + *  };
> + */
> +
> +/ {
> +	sound {
> +		compatible = "ti,da830-evm-audio";
> +		ti,model = "AM335x BeagleBone Audio Cape Rev. A";
> +		ti,audio-codec = <&tlv320aic3106>;
> +		ti,mcasp-controller = <&mcasp0>;
> +		ti,codec-clock-rate = <12000000>;
> +		ti,audio-routing =
> +			"Headphone Jack",       "HPLOUT",
> +			"Headphone Jack",       "HPROUT",
> +			"LINE1L",               "Line In",
> +			"LINE1R",               "Line In";
> +	};
> +
> +	audio-cape-gpio-leds {
> +		compatible = "gpio-leds";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&bone_audio_cape_led_pins>;
> +
> +		audio-led0 {
> +			label = "audio:green:usr0";
> +			gpios = <&gpio1 18 GPIO_ACTIVE_HIGH>;
> +			linux,default-trigger = "heartbeat";
> +			default-state = "off";
> +		};
> +
> +		audio-led1 {
> +			label = "audio:green:usr1";
> +			gpios = <&gpio1 19 GPIO_ACTIVE_HIGH>;
> +			linux,default-trigger = "mmc0";
> +			default-state = "off";
> +		};
> +	};
> +};
> +
> +&am33xx_pinmux {
> +	bone_audio_cape_led_pins: pinmux_bone_audio_cape_led_pins {
> +		pinctrl-single,pins = <
> +			0x48 (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_a2.gpio1_18 */
> +			0x4c (PIN_OUTPUT_PULLDOWN | MUX_MODE7) /* gpmc_a3.gpio1_19 */
> +		>;
> +	};
> +
> +	bone_audio_cape_pins: bone_audio_cape_pins {
> +		pinctrl-single,pins = <
> +			0x190 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mcasp0_aclkx.mcasp0_aclkx */
> +			0x194 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mcasp0_fsx.mcasp0_fsx */
> +			0x19c (PIN_INPUT_PULLUP | MUX_MODE2)	/* mcasp0_ahclkr.mcasp0_axr2 */
> +			0x1ac (PIN_INPUT_PULLUP | MUX_MODE2)	/* mcasp0_ahclkx.mcasp0_axr3 */
> +		>;
> +	};
> +};
> +
> +&i2c2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&i2c2_pins>;
> +
> +	status = "okay";
> +	clock-frequency = <100000>;
> +
> +	tlv320aic3106: tlv320aic3106 at 1b {
> +		compatible = "ti,tlv320aic3106";
> +		reg = <0x1b>;
> +		status = "okay";
> +
> +		/* Regulators */
> +		AVDD-supply = <&vmmcsd_fixed>;
> +		IOVDD-supply = <&vmmcsd_fixed>;
> +		DRVDD-supply = <&vmmcsd_fixed>;
> +		DVDD-supply = <&vdd1v8_fixed>;
> +	};
> +};
> +
> +&mcasp0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&bone_audio_cape_pins>;
> +
> +	status = "okay";
> +
> +	op-mode = <0>;      /* MCASP_IIS_MODE */
> +	tdm-slots = <2>;
> +	serial-dir = <      /* 0: INACTIVE, 1: TX, 2: RX */
> +		0 0 2 1
> +	>;
> +	tx-num-evt = <1>;
> +	rx-num-evt = <1>;
> +};
> diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
> index e3f27ec..c1c0f74 100644
> --- a/arch/arm/boot/dts/am335x-bone-common.dtsi
> +++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
> @@ -62,12 +62,26 @@
>  		regulator-min-microvolt = <3300000>;
>  		regulator-max-microvolt = <3300000>;
>  	};
> +
> +	vdd1v8_fixed: fixedregulator at 1 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vdd1v8_fixed";
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +	};
>  };
>  
>  &am33xx_pinmux {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&clkout2_pin>;
>  
> +	i2c2_pins: pinmux_i2c2_pins {
> +		pinctrl-single,pins = <
> +			0x178 (PIN_INPUT_PULLUP | MUX_MODE3)  /* uart1_ctsn.i2c2_sda */
> +			0x17c (PIN_INPUT_PULLUP | MUX_MODE3)  /* uart1_rtsn.i2c2_scl */
> +		>;
> +	};
> +
>  	user_leds_s0: user_leds_s0 {
>  		pinctrl-single,pins = <
>  			0x54 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a5.gpio1_21 */
> -- 
> 1.8.5.2
>