Hi everyone, i'm trying to interface the wm8782 codec with my Beaglebone Black running 3.8.13 kernel.
I'm getting this error when i load the device tree file: davinci_evm sound.11: ASoC: CODEC (null) not registered
What i'm doing wrong??
The correponding source file are attached.
Thanks for your help!
wm8782.c
/*
* sound/soc/codecs/wm8782.c
* simple, strap-pin configured 24bit 2ch ADC
*
* Copyright: 2011 Raumfeld GmbH
* Author: Johannes Stezenbach <js(a)sig21.net>
*
* based on ad73311.c
* Copyright:Analog Device Inc.
* Author:Cliff Cai <cliff.cai(a)analog.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/initval.h>
#include <sound/soc.h>
#include <linux/of_device.h>
#include <linux/of_device.h>
static const struct of_device_id wm8782_of_match[] = {
{ .compatible = "wlf,wm8782", },
{ }
};
MODULE_DEVICE_TABLE(of, wm8782_of_match);
static const struct snd_soc_dapm_widget wm8782_dapm_widgets[] = {
SND_SOC_DAPM_INPUT("AINL"),
SND_SOC_DAPM_INPUT("AINR"),
};
static const struct snd_soc_dapm_route wm8782_dapm_routes[] = {
{ "Capture", NULL, "AINL" },
{ "Capture", NULL, "AINR" },
};
static struct snd_soc_dai_driver wm8782_dai = {
.name = "wm8782-hifi",
.capture = {
.stream_name = "Capture",
.channels_min = 2,
.channels_max = 2,
/* For configurations with FSAMPEN=0 */
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S20_3LE |
SNDRV_PCM_FMTBIT_S24_LE,
},
};
static struct snd_soc_codec_driver soc_codec_dev_wm8782 = {
.dapm_widgets = wm8782_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(wm8782_dapm_widgets),
.dapm_routes = wm8782_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(wm8782_dapm_routes),
};
static int wm8782_probe(struct platform_device *pdev)
{
return snd_soc_register_codec(&pdev->dev,
&soc_codec_dev_wm8782, &wm8782_dai, 1);
}
static int wm8782_remove(struct platform_device *pdev)
{
snd_soc_unregister_codec(&pdev->dev);
return 0;
}
static struct platform_driver wm8782_codec_driver = {
.driver = {
.name = "wm8782",
.owner = THIS_MODULE,
},
.probe = wm8782_probe,
.remove = wm8782_remove,
};
module_platform_driver(wm8782_codec_driver);
MODULE_DESCRIPTION("ASoC WM8782 driver");
MODULE_AUTHOR("Johannes Stezenbach <js(a)sig21.net>");
MODULE_LICENSE("GPL");
davinci-evm.c
/*
* ASoC driver for TI DAVINCI EVM platform
*
* Author: Vladimir Barinov, <vbarinov(a)embeddedalley.com>
* Copyright: (C) 2007 MontaVista Software, Inc., <source(a)mvista.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.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/platform_data/edma.h>
#include <linux/i2c.h>
#include <linux/of_platform.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <asm/dma.h>
#include <asm/mach-types.h>
#include <linux/edma.h>
#include "davinci-pcm.h"
#include "davinci-i2s.h"
#include "davinci-mcasp.h"
#include <linux/of_gpio.h>
#define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF)
static int evm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct snd_soc_codec *codec = rtd->codec;
struct snd_soc_card *soc_card = codec->card;
struct device_node *np = soc_card->dev->of_node;
int ret = 0;
unsigned sysclk;
if (np) {
ret = of_property_read_u32(np, "ti,codec-clock-rate", &sysclk);
if (ret < 0)
return ret;
} else {
/* ASP1 on DM355 EVM is clocked by an external oscillator */
if (machine_is_davinci_dm355_evm() ||
machine_is_davinci_dm6467_evm() ||
machine_is_davinci_dm365_evm())
sysclk = 27000000;
/*
* ASP0 in DM6446 EVM is clocked by U55, as configured by
* board-dm644x-evm.c using GPIOs from U18. There are six
* options; here we "know" we use a 48 KHz sample rate.
*/
else if (machine_is_davinci_evm())
sysclk = 12288000;
else if (machine_is_davinci_da830_evm() ||
machine_is_davinci_da850_evm())
sysclk = 24576000;
else
return -EINVAL;
}
/* set codec DAI configuration */
ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
if (ret < 0)
return ret;
/* set cpu DAI configuration */
ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
if (ret < 0)
return ret;
/* set the codec system clock */
ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
if (ret < 0)
return ret;
/* set the CPU system clock */
ret = snd_soc_dai_set_sysclk(cpu_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
if (ret < 0)
return ret;
return 0;
}
static int evm_spdif_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
/* set cpu DAI configuration */
return snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
}
static struct snd_soc_ops evm_ops = {
.hw_params = evm_hw_params,
};
static struct snd_soc_ops evm_spdif_ops = {
.hw_params = evm_spdif_hw_params,
};
/* davinci-evm machine dapm widgets */
static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
SND_SOC_DAPM_LINE("Line Out", NULL),
SND_SOC_DAPM_MIC("Mic Jack", NULL),
SND_SOC_DAPM_LINE("Line In", NULL),
};
/* davinci-evm machine audio_mapnections to the codec pins */
static const struct snd_soc_dapm_route audio_map[] = {
/* Headphone connected to HPLOUT, HPROUT */
{"Headphone Jack", NULL, "HPLOUT"},
{"Headphone Jack", NULL, "HPROUT"},
/* Line Out connected to LLOUT, RLOUT */
{"Line Out", NULL, "LLOUT"},
{"Line Out", NULL, "RLOUT"},
/* Mic connected to (MIC3L | MIC3R) */
{"MIC3L", NULL, "Mic Bias 2V"},
{"MIC3R", NULL, "Mic Bias 2V"},
{"Mic Bias 2V", NULL, "Mic Jack"},
/* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
{"LINE1L", NULL, "Line In"},
{"LINE2L", NULL, "Line In"},
{"LINE1R", NULL, "Line In"},
{"LINE2R", NULL, "Line In"},
};
/* Logic for a tda998x as connected on a davinci-evm */
static int evm_tda998x_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
int ret;
ret = snd_soc_dai_set_clkdiv(cpu_dai, 0, 1);
if (ret < 0)
return ret;
ret = snd_soc_dai_set_clkdiv(cpu_dai, 1, 8);
if (ret < 0)
return ret;
ret = snd_soc_dai_set_sysclk(cpu_dai, 0, 0, SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;
ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_CBS_CFS | SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_IB_NF);
if (ret < 0)
return ret;
return 0;
}
/* Logic for a aic3x as connected on a davinci-evm */
static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_codec *codec = rtd->codec;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct snd_soc_dapm_context *dapm = &codec->dapm;
struct device_node *np = codec->card->dev->of_node;
int ret;
/* Add davinci-evm specific widgets */
snd_soc_dapm_new_controls(dapm, aic3x_dapm_widgets,
ARRAY_SIZE(aic3x_dapm_widgets));
if (np) {
ret = snd_soc_of_parse_audio_routing(codec->card,
"ti,audio-routing");
if (ret)
return ret;
} else {
/* Set up davinci-evm specific audio path audio_map */
snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
}
/* Divide McASP MCLK by 2 to provide 12MHz to codec */
ret = snd_soc_dai_set_clkdiv(cpu_dai, 0, 2);
if (ret < 0)
return ret;
/* not connected */
snd_soc_dapm_disable_pin(dapm, "MONO_LOUT");
snd_soc_dapm_disable_pin(dapm, "HPLCOM");
snd_soc_dapm_disable_pin(dapm, "HPRCOM");
/* always connected */
snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
snd_soc_dapm_enable_pin(dapm, "Line Out");
snd_soc_dapm_enable_pin(dapm, "Mic Jack");
snd_soc_dapm_enable_pin(dapm, "Line In");
return 0;
}
/* davinci-evm digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link dm6446_evm_dai = {
.name = "TLV320AIC3X",
.stream_name = "AIC3X",
.cpu_dai_name = "davinci-mcbsp",
.codec_dai_name = "tlv320aic3x-hifi",
.codec_name = "tlv320aic3x-codec.1-001b",
.platform_name = "davinci-mcbsp",
.init = evm_aic3x_init,
.ops = &evm_ops,
};
static struct snd_soc_dai_link dm355_evm_dai = {
.name = "TLV320AIC3X",
.stream_name = "AIC3X",
.cpu_dai_name = "davinci-mcbsp.1",
.codec_dai_name = "tlv320aic3x-hifi",
.codec_name = "tlv320aic3x-codec.1-001b",
.platform_name = "davinci-mcbsp.1",
.init = evm_aic3x_init,
.ops = &evm_ops,
};
static struct snd_soc_dai_link dm365_evm_dai = {
#ifdef CONFIG_SND_DM365_AIC3X_CODEC
.name = "TLV320AIC3X",
.stream_name = "AIC3X",
.cpu_dai_name = "davinci-mcbsp",
.codec_dai_name = "tlv320aic3x-hifi",
.init = evm_aic3x_init,
.codec_name = "tlv320aic3x-codec.1-0018",
.ops = &evm_ops,
.platform_name = "davinci-mcbsp",
#elif defined(CONFIG_SND_DM365_VOICE_CODEC)
.name = "Voice Codec - CQ93VC",
.stream_name = "CQ93",
.cpu_dai_name = "davinci-vcif",
.codec_dai_name = "cq93vc-hifi",
.codec_name = "cq93vc-codec",
.platform_name = "davinci-vcif",
#endif
};
static struct snd_soc_dai_link dm6467_evm_dai[] = {
{
.name = "TLV320AIC3X",
.stream_name = "AIC3X",
.cpu_dai_name= "davinci-mcasp.0",
.codec_dai_name = "tlv320aic3x-hifi",
.platform_name = "davinci-mcasp.0",
.codec_name = "tlv320aic3x-codec.0-001a",
.init = evm_aic3x_init,
.ops = &evm_ops,
},
{
.name = "McASP",
.stream_name = "spdif",
.cpu_dai_name= "davinci-mcasp.1",
.codec_dai_name = "dit-hifi",
.codec_name = "spdif_dit",
.platform_name = "davinci-mcasp.1",
.ops = &evm_spdif_ops,
},
};
static struct snd_soc_dai_link da830_evm_dai = {
.name = "TLV320AIC3X",
.stream_name = "AIC3X",
.cpu_dai_name = "davinci-mcasp.1",
.codec_dai_name = "tlv320aic3x-hifi",
.codec_name = "tlv320aic3x-codec.1-0018",
.platform_name = "davinci-mcasp.1",
.init = evm_aic3x_init,
.ops = &evm_ops,
};
static struct snd_soc_dai_link da850_evm_dai = {
.name = "TLV320AIC3X",
.stream_name = "AIC3X",
.cpu_dai_name= "davinci-mcasp.0",
.codec_dai_name = "tlv320aic3x-hifi",
.codec_name = "tlv320aic3x-codec.1-0018",
.platform_name = "davinci-mcasp.0",
.init = evm_aic3x_init,
.ops = &evm_ops,
};
/* davinci dm6446 evm audio machine driver */
static struct snd_soc_card dm6446_snd_soc_card_evm = {
.name = "DaVinci DM6446 EVM",
.owner = THIS_MODULE,
.dai_link = &dm6446_evm_dai,
.num_links = 1,
};
/* davinci dm355 evm audio machine driver */
static struct snd_soc_card dm355_snd_soc_card_evm = {
.name = "DaVinci DM355 EVM",
.owner = THIS_MODULE,
.dai_link = &dm355_evm_dai,
.num_links = 1,
};
/* davinci dm365 evm audio machine driver */
static struct snd_soc_card dm365_snd_soc_card_evm = {
.name = "DaVinci DM365 EVM",
.owner = THIS_MODULE,
.dai_link = &dm365_evm_dai,
.num_links = 1,
};
/* davinci dm6467 evm audio machine driver */
static struct snd_soc_card dm6467_snd_soc_card_evm = {
.name = "DaVinci DM6467 EVM",
.owner = THIS_MODULE,
.dai_link = dm6467_evm_dai,
.num_links = ARRAY_SIZE(dm6467_evm_dai),
};
static struct snd_soc_card da830_snd_soc_card = {
.name = "DA830/OMAP-L137 EVM",
.owner = THIS_MODULE,
.dai_link = &da830_evm_dai,
.num_links = 1,
};
static struct snd_soc_card da850_snd_soc_card = {
.name = "DA850/OMAP-L138 EVM",
.owner = THIS_MODULE,
.dai_link = &da850_evm_dai,
.num_links = 1,
};
#if defined(CONFIG_OF)
enum {
MACHINE_VERSION_1 = 0,/* DM365 with Voice Codec */
MACHINE_VERSION_2,/* DM365/DA8xx/OMAPL1x/AM33xx */
MACHINE_VERSION_3,/* AM33xx BeagleBone Black */
};
static const struct of_device_id davinci_evm_dt_ids[] = {
{
.compatible = "ti,dm365-voice-codec-audio",
.data = (void *)MACHINE_VERSION_1,
},
{
.compatible = "ti,da830-evm-audio",
.data = (void *)MACHINE_VERSION_2,
},
{
.compatible = "ti,am33xx-beaglebone-black",
.data = (void *)MACHINE_VERSION_3,
},
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, davinci_mcasp_dt_ids);
/*
* This struct is just used as place holder. It will be filled with
* data from dt node
*/
static struct snd_soc_dai_link evm_dai = {
.name= "WM8782",
.stream_name= "AIC3X",
.codec_dai_name= "wm8782-hifi",
};
/* davinci evm audio machine driver */
static struct snd_soc_card evm_soc_card = {
.owner = THIS_MODULE,
.dai_link = &evm_dai,
.num_links = 1,
};
static int davinci_evm_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
const struct of_device_id *match =
of_match_device(of_match_ptr(davinci_evm_dt_ids), &pdev->dev);
u32 machine_ver, clk_gpio;
int ret = 0;
machine_ver = (u32)match->data;
switch (machine_ver) {
case MACHINE_VERSION_1:
evm_dai.name= "Voice Codec - CQ93VC";
evm_dai.stream_name= "CQ93";
evm_dai.codec_dai_name= "cq93vc-hifi";
break;
case MACHINE_VERSION_2:
evm_dai.ops = &evm_ops;
evm_dai.init = evm_aic3x_init;
break;
case MACHINE_VERSION_3:
evm_dai.name= "NXP TDA HDMI Chip";
evm_dai.stream_name= "HDMI";
evm_dai.codec_dai_name= "nxp-hdmi-hifi";
evm_dai.init = evm_tda998x_init;
/*
* Move GPIO handling out of the probe, if probe gets
* deferred, the gpio will have been claimed on previous
* probe and will fail on the second and susequent probes
*/
clk_gpio = of_get_named_gpio(np, "mcasp_clock_enable", 0);
if (clk_gpio < 0) {
dev_err(&pdev->dev, "failed to find mcasp_clock enable GPIO!\n");
return -EINVAL;
}
ret = gpio_request_one(clk_gpio, GPIOF_OUT_INIT_HIGH,
"McASP Clock Enable Pin");
if (ret < 0) {
dev_err(&pdev->dev, "Failed to claim McASP Clock Enable pin\n");
return -EINVAL;
}
gpio_set_value(clk_gpio, 1);
break;
}
evm_dai.codec_of_node = of_parse_phandle(np, "ti,audio-codec", 0);
if (!evm_dai.codec_of_node)
return -EINVAL;
evm_dai.cpu_of_node = of_parse_phandle(np,
"ti,mcasp-controller", 0);
if (!evm_dai.cpu_of_node)
return -EINVAL;
evm_dai.platform_of_node = evm_dai.cpu_of_node;
evm_soc_card.dev = &pdev->dev;
ret = snd_soc_of_parse_card_name(&evm_soc_card, "ti,model");
if (ret)
return ret;
ret = snd_soc_register_card(&evm_soc_card);
if (ret)
dev_err(&pdev->dev, "snd_soc_register_card fuck failed (%d)\n", ret);
return ret;
}
static int davinci_evm_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
snd_soc_unregister_card(card);
return 0;
}
static struct platform_driver davinci_evm_driver = {
.probe= davinci_evm_probe,
.remove= davinci_evm_remove,
.driver= {
.name= "davinci_evm",
.owner= THIS_MODULE,
.of_match_table = of_match_ptr(davinci_evm_dt_ids),
},
};
#endif
static struct platform_device *evm_snd_device;
static int __init evm_init(void)
{
struct snd_soc_card *evm_snd_dev_data;
int index;
int ret;
#if defined(CONFIG_OF)
/*
* If dtb is there, the devices will be created dynamically.
* Only register platfrom driver structure.
*/
if (of_have_populated_dt())
return platform_driver_register(&davinci_evm_driver);
#endif
if (machine_is_davinci_evm()) {
evm_snd_dev_data = &dm6446_snd_soc_card_evm;
index = 0;
} else if (machine_is_davinci_dm355_evm()) {
evm_snd_dev_data = &dm355_snd_soc_card_evm;
index = 1;
} else if (machine_is_davinci_dm365_evm()) {
evm_snd_dev_data = &dm365_snd_soc_card_evm;
index = 0;
} else if (machine_is_davinci_dm6467_evm()) {
evm_snd_dev_data = &dm6467_snd_soc_card_evm;
index = 0;
} else if (machine_is_davinci_da830_evm()) {
evm_snd_dev_data = &da830_snd_soc_card;
index = 1;
} else if (machine_is_davinci_da850_evm()) {
evm_snd_dev_data = &da850_snd_soc_card;
index = 0;
} else
return -EINVAL;
evm_snd_device = platform_device_alloc("soc-audio", index);
if (!evm_snd_device)
return -ENOMEM;
platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
ret = platform_device_add(evm_snd_device);
if (ret)
platform_device_put(evm_snd_device);
return ret;
}
static void __exit evm_exit(void)
{
#if defined(CONFIG_OF)
if (of_have_populated_dt()) {
platform_driver_unregister(&davinci_evm_driver);
return;
}
#endif
platform_device_unregister(evm_snd_device);
}
module_init(evm_init);
module_exit(evm_exit);
MODULE_AUTHOR("Vladimir Barinov");
MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
MODULE_LICENSE("GPL");
device tree file
/*
* Copyright (C) 2014 John Rhoades
*
* 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/;
/plugin/;
/ {
compatible = "ti,beaglebone-black";
part-number = "jsr-cs4271";
version = "00A0";
/* state the resources this cape uses */
exclusive-use =
/* the pin header uses */
"P9.17", /* cs4271 reset */
/* i2c2 */
"P9.19", /* i2c2: scl */
"P9.20", /* i2c2: sca */
/* mcasp0 */
"P9.31", /* mcasp0: aclkx 0x190 */
"P9.29", /* mcasp0: fsx 0x194 */
/* not used "P9.30", /* mcasp0: axr0 0x198 */
"P9.28", /* mcasp0: axr2 0x19c */
"P9.42", /* mcasp0: aclkr 0x1a0 */
"P9.27", /* mcasp0: fsr 0x1a4 */
/* not used "P9.41", /* mcasp0: axr1 0x1a8 */
"P9.25", /* mcasp0: axr3 0x1ac */
/* the hardware IP uses */
"gpio1_27",
"snd-soc-wm8782", // needed to get module loaded
"mcasp0";
fragment@0 {
target = <&am33xx_pinmux>;
__overlay__ {
wm8782_i2c2_reset: wm8782_i2c2_reset {
pinctrl-single,pins = <
0x078 0x0f /* gpio0_5, mode7 */
>;
};
wm8782_i2c2_pins: wm8782_i2c2_pins {
pinctrl-single,pins = <
0x178 0x73 /* I2C2_sda */
0x17c 0x73 /* I2C2_scl */
>;
};
mcasp0_pins: mcasp0_pins {
pinctrl-single,pins = <
0x190 0x20 /* P9.31 mcasp0 0->aclkx */
0x194 0x20 /* P9.29 mcasp0 0->fsx */
0x198 0x20 /* P9.30 mcasp0 0->axr0 */
0x19c 0x22 /* P9.28 mcasp0 0->ahclkr, 2->axr2 */
0x1a0 0x20 /* P9.42 mcasp0 0->aclkr, 2->axr2 */
0x1a4 0x20 /* P9.27 mcasp0 0->fsr, 2->axr3 */
0x1a8 0x20 /* P9.41 mcasp0 0->axr1 */
0x1ac 0x22 /* P9.25 mcasp0 0->ahclkx, 2->axr3 */
>;
};
};
};
fragment@2 {
target = <&i2c2>;
__overlay__ {
#address-cells = <1>;
#size-cells = <0>;
wm8782: wm8782@10 {
compatible = ",wm8782";
reg = <0x10>;
status = "okay";
};
};
};
fragment@3 {
target = <&mcasp0>;
__overlay__ {
pinctrl-names = "default";
pinctrl-0 = <&mcasp0_pins>;
status = "okay";
op-mode = <0>; /* MCASP_I2S_MODE */
tdm-slots = <2>;
num-serializer = <16>;
serial-dir = < /* 0: INACTIVE, 1: TX, 2: RX */
0 0 2 1 /* axr2: capture data, axr3: play data */
0 0 0 0
0 0 0 0
0 0 0 0
>;
tx-num-evt = <1>;
rx-num-evt = <1>;
};
};
fragment@4 {
target = <&ocp>;
__overlay__ {
sound {
compatible = "ti,da830-evm-audio"; //"ti,am33xx-beaglebone-black";
ti,model = "DA830 EVM"; // "wm8782";
ti,audio-codec = <&wm8782>;
ti,mcasp-controller = <&mcasp0>;
ti,codec-clock-rate = <24576000>;
#mcasp_clock_enable = <&gpio2 27 0>; /* BeagleBone Black Clk enable on GPIO1_27 */
ti,audio-routing =
"Headphone Jack", "HPLOUT",
"Headphone Jack", "HPROUT",
"LINE1L", "Line In",
"LINE1R", "Line In";
};
};
};
};
