Re: [PATCH v8 3/6] arm64: dts: ti: k3-am625-sk: Enable audio on AM62 SK

From: Jai Luthra
Date: Wed Mar 29 2023 - 04:04:49 EST

Hi,

On Mar 28, 2023 at 08:32:25 -0500, Nishanth Menon wrote:
> On 18:59-20230328, Jai Luthra wrote:
> > Add nodes for audio codec and sound card, enable the audio serializer
> > (McASP1) under use from SK-AM62 E2 [1] onwards and update pinmux.
> >
> > Keep all audio related nodes in the common dtsi as they are exactly the
> > same between SK-AM62 and SK-AM62-LP.
> >
> > Link: https://www.ti.com/lit/zip/sprr448 [1]
> > Signed-off-by: Jai Luthra <j-luthra@xxxxxx>
> > Reviewed-by: Jayesh Choudhary <j-choudhary@xxxxxx>
> > ---
> > arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts | 11 ++++
> > arch/arm64/boot/dts/ti/k3-am625-sk.dts | 11 ++++
> > arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi | 77 ++++++++++++++++++++++++++
> > 3 files changed, 99 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts b/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts
> > index b2ca19e3042e..5ed6b1abe87d 100644
> > --- a/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts
> > +++ b/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts
> > @@ -70,6 +70,17 @@ vddshv_sdio: regulator-4 {
> > states = <1800000 0x0>,
> > <3300000 0x1>;
> > };
> > +
> > + vcc_1v8: regulator-5 {
> > + /* output of TPS62824DMQ */
> > + compatible = "regulator-fixed";
> > + regulator-name = "vcc_1v8";
> > + regulator-min-microvolt = <1800000>;
> > + regulator-max-microvolt = <1800000>;
> > + vin-supply = <&vcc_3v3_sys>;
> > + regulator-always-on;
> > + regulator-boot-on;
> > + };
> > };
> >
> > &main_pmx0 {
> > diff --git a/arch/arm64/boot/dts/ti/k3-am625-sk.dts b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
> > index cdc0858dd1b2..2b861681e548 100644
> > --- a/arch/arm64/boot/dts/ti/k3-am625-sk.dts
> > +++ b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
> > @@ -87,6 +87,17 @@ vdd_sd_dv: regulator-4 {
> > states = <1800000 0x0>,
> > <3300000 0x1>;
> > };
> > +
> > + vcc_1v8: regulator-5 {
> > + /* output of TPS6282518DMQ */
> > + compatible = "regulator-fixed";
> > + regulator-name = "vcc_1v8";
> > + regulator-min-microvolt = <1800000>;
> > + regulator-max-microvolt = <1800000>;
> > + vin-supply = <&vcc_3v3_sys>;
> > + regulator-always-on;
> > + regulator-boot-on;
> > + };
> > };
>
> If the regulators are common, maybe we should first move the regulators
> to common dtsi?

Sorry, please disregard this patch, I went over the schematics again and
found that I made a mistake here.

On SK-AM62-LP the audio codec gets the 1.8V from PMIC and not from a
dedicated on-board regulator. On SK-AM62 we do have a dedicated on-board
regulator for that.

Will fix this in next version.

Thanks,
Jai

>
> >
> > &main_pmx0 {
> > diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
> > index 54318a07d50c..2500cb9ba323 100644
> > --- a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
> > +++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
> > @@ -81,6 +81,41 @@ led-0 {
> > default-state = "off";
> > };
> > };
> > +
> > + tlv320_mclk: clk-0 {
> > + #clock-cells = <0>;
> > + compatible = "fixed-clock";
> > + clock-frequency = <12288000>;
> > + };
> > +
> > + codec_audio: sound {
> > + compatible = "simple-audio-card";
> > + simple-audio-card,name = "AM62x-SKEVM";
> > + simple-audio-card,widgets =
> > + "Headphone", "Headphone Jack",
> > + "Line", "Line In",
> > + "Microphone", "Microphone Jack";
> > + simple-audio-card,routing =
> > + "Headphone Jack", "HPLOUT",
> > + "Headphone Jack", "HPROUT",
> > + "LINE1L", "Line In",
> > + "LINE1R", "Line In",
> > + "MIC3R", "Microphone Jack",
> > + "Microphone Jack", "Mic Bias";
> > + simple-audio-card,format = "dsp_b";
> > + simple-audio-card,bitclock-master = <&sound_master>;
> > + simple-audio-card,frame-master = <&sound_master>;
> > + simple-audio-card,bitclock-inversion;
> > +
> > + simple-audio-card,cpu {
> > + sound-dai = <&mcasp1>;
> > + };
> > +
> > + sound_master: simple-audio-card,codec {
> > + sound-dai = <&tlv320aic3106>;
> > + clocks = <&tlv320_mclk>;
> > + };
> > + };
> > };
> >
> > &main_pmx0 {
> > @@ -175,6 +210,15 @@ main_usb1_pins_default: main-usb1-pins-default {
> > AM62X_IOPAD(0x0258, PIN_OUTPUT, 0) /* (F18/E16) USB1_DRVVBUS */
> > >;
> > };
> > +
> > + main_mcasp1_pins_default: main-mcasp1-pins-default {
> > + pinctrl-single,pins = <
> > + AM62X_IOPAD(0x090, PIN_INPUT, 2) /* (M24) GPMC0_BE0N_CLE.MCASP1_ACLKX */
> > + AM62X_IOPAD(0x098, PIN_INPUT, 2) /* (U23) GPMC0_WAIT0.MCASP1_AFSX */
> > + AM62X_IOPAD(0x08c, PIN_OUTPUT, 2) /* (L25) GPMC0_WEN.MCASP1_AXR0 */
> > + AM62X_IOPAD(0x084, PIN_INPUT, 2) /* (L23) GPMC0_ADVN_ALE.MCASP1_AXR2 */
> > + >;
> > + };
> > };
> >
> > &wkup_uart0 {
> > @@ -205,6 +249,19 @@ &main_i2c1 {
> > pinctrl-names = "default";
> > pinctrl-0 = <&main_i2c1_pins_default>;
> > clock-frequency = <400000>;
> > +
> > + tlv320aic3106: audio-codec@1b {
> > + #sound-dai-cells = <0>;
> > + compatible = "ti,tlv320aic3106";
> > + reg = <0x1b>;
> > + ai3x-micbias-vg = <1>; /* 2.0V */
> > +
> > + /* Regulators */
> > + AVDD-supply = <&vcc_3v3_sys>;
> > + IOVDD-supply = <&vcc_3v3_sys>;
> > + DRVDD-supply = <&vcc_3v3_sys>;
> > + DVDD-supply = <&vcc_1v8>;
> > + };
> > };
> >
> > &sdhci0 {
> > @@ -272,3 +329,23 @@ &usb1 {
> > pinctrl-names = "default";
> > pinctrl-0 = <&main_usb1_pins_default>;
> > };
> > +
> > +&mcasp1 {
> > + status = "okay";
> > + #sound-dai-cells = <0>;
> > +
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&main_mcasp1_pins_default>;
> > +
> > + op-mode = <0>; /* MCASP_IIS_MODE */
> > + tdm-slots = <2>;
> > +
> > + serial-dir = < /* 0: INACTIVE, 1: TX, 2: RX */
> > + 1 0 2 0
> > + 0 0 0 0
> > + 0 0 0 0
> > + 0 0 0 0
> > + >;
> > + tx-num-evt = <32>;
> > + rx-num-evt = <32>;
> > +};
> >
> > --
> > 2.40.0
> >
>
> --
> Regards,
> Nishanth Menon
> Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D

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