Re: Wolfson 5102 on Beaglebone Black using ALSA

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> There are some hoops to jump through to get access to the
> necessary compilers etc. for the DSP, although again Joao who I
> CCed on your other email would be a good place to start the
> process of getting access to that.

Thank you, this part may come later this year.

> Yeah please avoid doing this, the driver should support all the
> features you require from the sound of things. There should be no
> need to hard code register writes.
> 
> What sort of things are you setting up with these register
> writes? Lets see if I can point you in the direction of the
> correct place to put some of those.

Thanks!

The clocking:

regmap_write(arizona->regmap, ARIZONA_CLOCK_32K_1, 0x00042);  // Use Sysclk, Default = 0x0041
regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0200); // Use MCLK1, and 24.576MHz from BBB McASP,  Default = 0x0304 

These would seem to be the relevant device tree entries from Documentation/devicetree/bindings/mfd/arizona.txt:

  - clocks: Should reference the clocks supplied on MCLK1 and MCLK2
  - clock-names: Should contains two strings:
      "mclk1" for the clock supplied on MCLK1, recommended to be a high
      quality audio reference clock
      "mclk2" for the clock supplied on MCLK2, recommended to be an always on
      32k clock

Still trying to figure out how to specify these.  I have pasted our device tree to the end of this email.  (Oh, gpio for BBB McASP clock is deliberately routed away from gpio1_27, because somehow we are not convincing the driver to enable it, and so we have a gpio_set_value(MY_CLOCK_GPIO_ENABLE,1); in arizona-core probe until we figure out how.

>> We had to simply disinvite extcon-arizona from the party
>> though.  On both the WM5102-6271-CS137-M-SCH-REV2.03 and our
>> protoboard, JACKDET is an IRQ gone wild.  On the Wolfson board,
>> inserting my headphones into the jack shut it up.  But on our
>> protoboard, where we left that pin unconnected, we found that
>> the probe of extcon-arizona hard enables JACKDET.
>> 
> I am surprised you are seeing issues on one of our boards, they
> are all fairly well tested here. I would quite like to see a
> kernel log on that one if I can?

Okay, I’ll hook up the dev board, likely Thurs-Fri after we complete
board bring up.

> Apart from that, this all seems reasonable, the extcon driver
> exists to control the jack detection. If that is not wired up on
> your system then not building in this part of the system seems
> the correct response.
> 
> Thanks,
> Charles

Thank you, Clark.

Device Tree _______________________________________

/*
 * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
 *
 * 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.
 */
/dts-v1/;

#include "am33xx.dtsi"
#include "am335x-bone-common.dtsi"
#include "dt-bindings/mfd/arizona.h"

/ {
	model = "TI AM335x BeagleBone Black";
	compatible = "ti,am335x-bone-black", "ti,am335x-bone", "ti,am33xx";


leds {
     pinctrl-names = "default";
     pinctrl-0 = <&led_pins_default>;
     compatible = "gpio-leds";

     led@1 {
     	   label= "led_ir";
	   gpios = <&gpio0 26 GPIO_ACTIVE_HIGH>;
	   default-state = "off";
	   };

     led@2 {
     	   label= "led_red";
	   gpios = <&gpio1 14 GPIO_ACTIVE_HIGH>;
	   default-state = "off";
	   };
};



ldo18: ldo18 {
      compatible = "regulator-fixed";
      regulator-name = "DC_1V8";
      regulator-min-microvolt = <1800000>;
      regulator-max-microvolt = <1800000>;
      enable-active-high;
      regulator-always-on;
        };

ldo50: ldo50 { /* BBB VCC_5V */
      compatible = "regulator-fixed";
      regulator-name = "DC_5V0";
      regulator-min-microvolt = <5000000>;
      regulator-max-microvolt = <5000000>;
      enable-active-high;
      regulator-always-on;
        };

clk_audio_fixed: clk_audio_fixed {
      #clock-cells = <0>;
      compatible = "fixed-clock";
      clock-frequency = <24576000>;
};


clk_audio: clk_audio {
      #clock-cells = <0>;
      compatible = "gpio-gate-clock";
      clocks = <&clk_audio_fixed>;
      enable-gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>; /* BeagleBone Black Clk enable on GPIO1_27 */
};


sound: sound@0 {
    status = "okay";
    compatible = "simple-audio-card";
    simple-audio-card,name = "WM5102";
    simple-audio-card,widgets =
        "Line", "Line In";
    simple-audio-card,routing =
				 "IN1L", "Line In",
				 "IN1R", "Line In",
				 "IN2L", "Line In",
				 "IN2R", "Line In",
				 "IN3L", "Line In",
				 "IN3R", "Line In";
/*	simple-audio-card,hp-det-gpio = <&gpio0 12 GPIO_ACTIVE_HIGH>; /*TP38*/
    /*simple-audio-card,dai-link {*/
	simple-audio-card,format = "dsp_b";
	simple-audio-card,bitclock-master = <&sound_master>;
	simple-audio-card,frame-master = <&sound_master>;
	simple-audio-card,cpu {
		sound-dai = <&mcasp0>;
                clocks = <&clk_audio>;
		/*
		dai-tdm-slot-num = <6>;
		dai-tdm-slot-width = <32>;
		*/
	};
	sound_master: simple-audio-card,codec {
		sound-dai = <&wm5102>;
		clocks = <&clk_audio>;
	        system-clock-id = <1>; /* ARIZONA_CLK_SYSCLK */
		/*
		dai-tdm-slot-num = <6>;
		dai-tdm-slot-width = <32>;
		*/
	};
   /* };*/

};

};

&ldo3_reg {
	regulator-min-microvolt = <1800000>;
	regulator-max-microvolt = <1800000>;
	regulator-always-on;
};

&mmc1 {
	vmmc-supply = <&vmmcsd_fixed>;
};

&mmc2 {
	vmmc-supply = <&vmmcsd_fixed>;
	pinctrl-names = "default";
	pinctrl-0 = <&emmc_pins>;
	bus-width = <8>;
	status = "okay";
};

&am33xx_pinmux {

	nxp_hdmi_bonelt_pins: nxp_hdmi_bonelt_pins {
		pinctrl-single,pins = <
		0x1b0 0x03      /* xdma_event_intr0, OMAP_MUX_MODE3 | AM33XX_PIN_OUTPUT */
		0x18c ( PIN_INPUT_PULLUP | MUX_MODE0 ) /* (C16) I2C0_SCL.I2C0_SCL */
		0x188 ( PIN_INPUT_PULLUP | MUX_MODE0 ) /* (C17) I2C0_SDA.I2C0_SDA */
		>;
	};
	
	nxp_hdmi_bonelt_off_pins: nxp_hdmi_bonelt_off_pins {
		pinctrl-single,pins = <
			0x1b0 0x03      /* xdma_event_intr0, OMAP_MUX_MODE3 | AM33XX_PIN_OUTPUT */
			0x18c ( PIN_INPUT | MUX_MODE0 ) /* (C16) I2C0_SCL.I2C0_SCL */
			0x188 ( PIN_INPUT | MUX_MODE0 ) /* (C17) I2C0_SDA.I2C0_SDA */
		>;
	};

	led_pins_default: led_pins_default {
		pinctrl-single,pins = <
			0x178 ( PIN_OUTPUT | MUX_MODE7 ) /* (D18) uart1_ctsn.gpio0[12] TP38 */
			0x17c ( PIN_OUTPUT | MUX_MODE7 ) /* (D17) uart1_rtsn.gpio0[13] TP39 */
			0x28 ( PIN_OUTPUT_PULLDOWN | MUX_MODE7 ) /* (T11) gpmc_ad10.gpio0[26] IR LED */
			0x38 ( PIN_OUTPUT_PULLDOWN | MUX_MODE7 ) /* (V13) gpmc_ad14.gpio1[14] RED LED */
		>;
	};

	accel_pins_default: accel_pins_default {
		pinctrl-single,pins = <
			0xe8 ( PIN_OUTPUT_PULLDOWN | MUX_MODE7 ) /* (V5) lcd_pclk.gpio2[24] ACCEL_ST */
			0xec ( PIN_OUTPUT_PULLUP | MUX_MODE7 ) /* (R6) lcd_ac_bias_en.gpio2[25] ACCEL_FS */
		>;
	};

	mcasp0_slave_pins_default: mcasp0_slave_pins_default {
		pinctrl-single,pins = <
			0x1a0 ( PIN_INPUT | MUX_MODE0 ) /* (B12) mcasp0_aclkr.mcasp0_aclkr */
			0x1a4 ( PIN_INPUT | MUX_MODE0 ) /* (C13) mcasp0_fsr.mcasp0_fsr */
			0x198 ( PIN_INPUT | MUX_MODE0 ) /* (D12) mcasp0_axr0.mcasp0_axr0 */
			0x19c ( PIN_OUTPUT | MUX_MODE2 ) /* (C12) mcasp0_ahclkr.mcasp0_axr2 */
		>;
	};

	wm5102_pins_default: wm5102_pins_default {
		pinctrl-single,pins = <
			0x6c ( PIN_OUTPUT_PULLUP | MUX_MODE7 ) /* (V17) gpmc_a11.gpio1[27] 24.576 MHZ CE */
			0x78 ( PIN_OUTPUT_PULLDOWN | MUX_MODE7 ) /* (U18) gpmc_be1n.gpio1[28] /RESET */
			0x7c ( PIN_OUTPUT_PULLUP | MUX_MODE7 ) /* (V6) gpmc_csn0.gpio1[29] LDOENA */
			0xe4 ( PIN_INPUT | MUX_MODE7 ) /* (R5) lcd_hsync.gpio2[23] /IRQ */
			0x1ac ( PIN_INPUT_PULLUP | MUX_MODE0 ) /* (A14) mcasp0_ahclkx.gpio3[21] AUDIO_MCLK */
			0x15c ( PIN_INPUT_PULLUP | MUX_MODE2 ) /* (A16) spi0_cs0.I2C1_SCL */
			0x158 ( PIN_INPUT_PULLUP | MUX_MODE2 ) /* (B16) spi0_d1.I2C1_SDA */
			0x164 ( PIN_INPUT | MUX_MODE7 ) /* (C18) eCAP0_in_PWM0_out.gpio0[7] (AUDIO BCLK) HIGHZ*/
		>;
	};


};

&lcdc {
	status = "disabled";
	port {
		lcdc_0: endpoint@0 {
			remote-endpoint = <&hdmi_0>;
		};
	};
};

&i2c0 {
	tda19988 {
		compatible = "nxp,tda998x";
		reg = <0x70>;
		pinctrl-names = "default", "off";
		pinctrl-0 = <&nxp_hdmi_bonelt_pins>;
		pinctrl-1 = <&nxp_hdmi_bonelt_off_pins>;

		port {
			hdmi_0: endpoint@0 {
				remote-endpoint = <&lcdc_0>;
			};
		};
	};
};


&i2c1 {
      pinctrl-names = "default";
      pintctrl-0 = <&wm5102_pins_default>;
      status = "okay";
      clock-frequency = <400000>;


      wm5102: wm5102@1b {
		compatible = "wlf,wm5102";
	      reg = <0x1b>;
	      status = "okay";
	      /* /IRQ is connected to GPIO2_23. Mask from HiassofT DT for cirrus audio board was 8 */
	      interrupts = <23 8>;
	      interrupt-controller;
	      #interrupt-cells = <2>;
	      interrupt-parent = <&gpio2>;
              /*clock-names = "mclk1", "mclk2";*/
	      gpio-controller;
	      #gpio-cells = <2>;
	      wlf,gpio-defaults = <
			ARIZONA_GP_FN_TXLRCLK
			ARIZONA_GP_DEFAULT
			ARIZONA_GP_DEFAULT
			ARIZONA_GP_DEFAULT
			ARIZONA_GP_DEFAULT
			>;
	      wlf,reset = <&gpio1 28 GPIO_ACTIVE_HIGH>; /* allow /RESET wm5102 by driver (via inverter)*/
              wlf,ldoena = <&gpio1 29 GPIO_ACTIVE_HIGH>; /* allow LDOENA wm5102 by driver */
	      LDOVDD-supply  = <&ldo18>; /* fixed 1V8 regulator */
	      AVDD-supply    = <&ldo18>;
	      DBVDD1-supply  = <&ldo18>;
	      DBVDD2-supply  = <&ldo18>;
	      DBVDD3-supply  = <&ldo18>;
	      CPVDD-supply   = <&ldo18>;
	      /*DCVDD-supply   = <&ldo18>; /* supplied by LDO1 */
	      MICVDD-supply  = <&ldo50>; 
	      SPKVDDL-supply = <&ldo50>; /* fixed VDD_5V from BBB */
	      SPKVDDR-supply = <&ldo50>;
              #sound-dai-cells = <0>;
/* we haven't figured out how reference the internal LDO, pin is pulled up */
#if 0
	ldo1: ldo1 {
		wlf,ldoena = <&gpio1 29 GPIO_ACTIVE_HIGH>; /* allow LDOENA wm5102 by driver */
	};
#endif
      };

};


&mcasp0 {
        pinctrl-names = "default";
        pinctrl-0 = <&mcasp0_slave_pins_default>;

        status = "okay";
        op-mode = <0>;        /* MCASP_IIS_MODE */
	tdm-slots = <6>;
        /* 4 serializers */
        serial-dir = <  /* 0: INACTIVE, 1: TX, 2: RX - 0 2 0 0 */
                2 0 0 0
        >;
        tx-num-evt = <32>;
        rx-num-evt = <32>;
        #sound-dai-cells = <0>;
};


&rtc {
	system-power-controller;
};



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