Commit 479112c9 authored by Jayesh Choudhary's avatar Jayesh Choudhary Committed by Vignesh Raghavendra
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arm64: dts: ti: k3-j784s4-evm: Enable analog audio support 

The audio support on J784S4-EVM is using PCM3168A[0] codec
connected to McASP0 serializers.

- Add the nodes for sound-card, audio codec, MAIN_I2C3 and
  McASP0.
- Add pinmux for I2C3, McASP0 and AUDIO_EXT_REFCLK1.
- Add necessary GPIO hogs to route the MAIN_I2C3 lines and
  McASP serializer.
- Add idle-state as 1 in mux1 to route McASP clock signals.

[0]: <https://www.ti.com/lit/gpn/pcm3168a

>

Signed-off-by: default avatarJayesh Choudhary <j-choudhary@ti.com>
Link: https://lore.kernel.org/r/20240626101645.36764-4-j-choudhary@ti.com


Signed-off-by: default avatarVignesh Raghavendra <vigneshr@ti.com>
parent 3ea5142a

arch/arm64/boot/dts/ti/k3-j784s4-evm.dts

+111 −0
Original line number Diff line number Diff line
@@ -312,6 +312,20 @@ mux1: mux-controller { 
		compatible = "gpio-mux";

		#mux-state-cells = <1>;

		mux-gpios = <&exp2 14 GPIO_ACTIVE_HIGH>;

		idle-state = <1>;

	};



	codec_audio: sound {

		compatible = "ti,j7200-cpb-audio";

		model = "j784s4-cpb";



		ti,cpb-mcasp = <&mcasp0>;

		ti,cpb-codec = <&pcm3168a_1>;



		clocks = <&k3_clks 265 0>, <&k3_clks 265 1>,

			 <&k3_clks 157 34>, <&k3_clks 157 63>;

		clock-names = "cpb-mcasp-auxclk", "cpb-mcasp-auxclk-48000",

			      "cpb-codec-scki", "cpb-codec-scki-48000";

	};

};
@@ -422,6 +436,28 @@ main_usbss0_pins_default: main-usbss0-default-pins { 
			J784S4_IOPAD(0x0ec, PIN_OUTPUT, 6) /* (AN37) TIMER_IO1.USB0_DRVVBUS */

		>;

	};



	main_i2c3_pins_default: main-i2c3-default-pins {

		pinctrl-single,pins = <

			J784S4_IOPAD(0x064, PIN_INPUT, 13) /* (AF38) MCAN0_TX.I2C3_SCL */

			J784S4_IOPAD(0x060, PIN_INPUT, 13) /* (AE36) MCASP2_AXR1.I2C3_SDA */

		>;

	};



	main_mcasp0_pins_default: main-mcasp0-default-pins {

		pinctrl-single,pins = <

			J784S4_IOPAD(0x038, PIN_OUTPUT_PULLDOWN, 1) /* (AK35) MCASP0_ACLKX */

			J784S4_IOPAD(0x03c, PIN_OUTPUT_PULLDOWN, 1) /* (AK38) MCASP0_AFSX */

			J784S4_IOPAD(0x07c, PIN_OUTPUT_PULLDOWN, 1) /* (AJ38) MCASP0_AXR3 */

			J784S4_IOPAD(0x080, PIN_INPUT_PULLDOWN, 1) /* (AK34) MCASP0_AXR4 */

		>;

	};



	audio_ext_refclk1_pins_default: audio-ext-refclk1-default-pins {

		pinctrl-single,pins = <

			J784S4_IOPAD(0x078, PIN_OUTPUT, 1) /* (AH37) MCAN2_RX.AUDIO_EXT_REFCLK1 */

		>;

	};

};



&wkup_pmx2 {
@@ -881,6 +917,14 @@ exp1: gpio@20 { 
				  "PCIE0_4L_RC_RSTZ", "PCIE0_4L_EP_RST_EN", "PCIE1_4L_PRSNT#",

				  "PCIE0_4L_PRSNT#", "CDCI1_OE1/OE4", "CDCI1_OE2/OE3",

				  "AUDIO_MUX_SEL", "EXP_MUX2", "EXP_MUX3", "GESI_EXP_PHY_RSTZ";



		p12-hog {

			/* P12 - AUDIO_MUX_SEL */

			gpio-hog;

			gpios = <12 GPIO_ACTIVE_HIGH>;

			output-low;

			line-name = "AUDIO_MUX_SEL";

		};

	};



	exp2: gpio@22 {
@@ -896,6 +940,22 @@ exp2: gpio@22 { 
				  "CANUART_MUX1_SEL1", "ENET1_EXP_PWRDN", "ENET1_EXP_RESETZ",

				  "ENET1_I2CMUX_SEL", "ENET1_EXP_SPARE2", "ENET2_EXP_RESETZ",

				  "USER_INPUT1", "USER_LED1", "USER_LED2";



		p13-hog {

			/* P13 - CANUART_MUX_SEL0 */

			gpio-hog;

			gpios = <13 GPIO_ACTIVE_HIGH>;

			output-high;

			line-name = "CANUART_MUX_SEL0";

		};



		p15-hog {

			/* P15 - CANUART_MUX1_SEL1 */

			gpio-hog;

			gpios = <15 GPIO_ACTIVE_HIGH>;

			output-high;

			line-name = "CANUART_MUX1_SEL1";

		};

	};

};
@@ -1373,3 +1433,54 @@ &pcie0_rc { 
	phys = <&serdes1_pcie0_link>;

	phy-names = "pcie-phy";

};



&k3_clks {

	/* Confiure AUDIO_EXT_REFCLK1 pin as output */

	pinctrl-names = "default";

	pinctrl-0 = <&audio_ext_refclk1_pins_default>;

};



&main_i2c3 {

	status = "okay";

	pinctrl-names = "default";

	pinctrl-0 = <&main_i2c3_pins_default>;

	clock-frequency = <400000>;



	exp3: gpio@20 {

		compatible = "ti,tca6408";

		reg = <0x20>;

		gpio-controller;

		#gpio-cells = <2>;

	};



	pcm3168a_1: audio-codec@44 {

		compatible = "ti,pcm3168a";

		reg = <0x44>;

		#sound-dai-cells = <1>;

		reset-gpios = <&exp3 0 GPIO_ACTIVE_LOW>;

		clocks = <&audio_refclk1>;

		clock-names = "scki";

		VDD1-supply = <&vsys_3v3>;

		VDD2-supply = <&vsys_3v3>;

		VCCAD1-supply = <&vsys_5v0>;

		VCCAD2-supply = <&vsys_5v0>;

		VCCDA1-supply = <&vsys_5v0>;

		VCCDA2-supply = <&vsys_5v0>;

	};

};



&mcasp0 {

	status = "okay";

	#sound-dai-cells = <0>;

	pinctrl-names = "default";

	pinctrl-0 = <&main_mcasp0_pins_default>;

	op-mode = <0>;          /* MCASP_IIS_MODE */

	tdm-slots = <2>;

	auxclk-fs-ratio = <256>;

	serial-dir = <	/* 0: INACTIVE, 1: TX, 2: RX */

		0 0 0 1

		2 0 0 0

		0 0 0 0

		0 0 0 0

	>;

};