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linux/sound/soc/ti/j721e-evm.c

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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com
* Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
*/
#include <linux/clk.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include "davinci-mcasp.h"
/*
* Maximum number of configuration entries for prefixes:
* CPB: 2 (mcasp10 + codec)
* IVI: 3 (mcasp0 + 2x codec)
*/
#define J721E_CODEC_CONF_COUNT 5
#define J721E_AUDIO_DOMAIN_CPB 0
#define J721E_AUDIO_DOMAIN_IVI 1
#define J721E_CLK_PARENT_48000 0
#define J721E_CLK_PARENT_44100 1
#define J721E_MAX_CLK_HSDIV 128
#define PCM1368A_MAX_SYSCLK 36864000
#define J721E_DAI_FMT (SND_SOC_DAIFMT_RIGHT_J | \
SND_SOC_DAIFMT_NB_NF | \
SND_SOC_DAIFMT_CBS_CFS)
enum j721e_board_type {
J721E_BOARD_CPB = 1,
J721E_BOARD_CPB_IVI,
};
struct j721e_audio_match_data {
enum j721e_board_type board_type;
int num_links;
unsigned int pll_rates[2];
};
static unsigned int ratios_for_pcm3168a[] = {
256,
512,
768,
};
struct j721e_audio_clocks {
struct clk *target;
struct clk *parent[2];
};
struct j721e_audio_domain {
struct j721e_audio_clocks codec;
struct j721e_audio_clocks mcasp;
int parent_clk_id;
int active;
unsigned int active_link;
unsigned int rate;
};
struct j721e_priv {
struct device *dev;
struct snd_soc_card card;
struct snd_soc_dai_link *dai_links;
struct snd_soc_codec_conf codec_conf[J721E_CODEC_CONF_COUNT];
struct snd_interval rate_range;
const struct j721e_audio_match_data *match_data;
u32 pll_rates[2];
unsigned int hsdiv_rates[2];
struct j721e_audio_domain audio_domains[2];
struct mutex mutex;
};
static const struct snd_soc_dapm_widget j721e_cpb_dapm_widgets[] = {
SND_SOC_DAPM_HP("CPB Stereo HP 1", NULL),
SND_SOC_DAPM_HP("CPB Stereo HP 2", NULL),
SND_SOC_DAPM_HP("CPB Stereo HP 3", NULL),
SND_SOC_DAPM_LINE("CPB Line Out", NULL),
SND_SOC_DAPM_MIC("CPB Stereo Mic 1", NULL),
SND_SOC_DAPM_MIC("CPB Stereo Mic 2", NULL),
SND_SOC_DAPM_LINE("CPB Line In", NULL),
};
static const struct snd_soc_dapm_route j721e_cpb_dapm_routes[] = {
{"CPB Stereo HP 1", NULL, "codec-1 AOUT1L"},
{"CPB Stereo HP 1", NULL, "codec-1 AOUT1R"},
{"CPB Stereo HP 2", NULL, "codec-1 AOUT2L"},
{"CPB Stereo HP 2", NULL, "codec-1 AOUT2R"},
{"CPB Stereo HP 3", NULL, "codec-1 AOUT3L"},
{"CPB Stereo HP 3", NULL, "codec-1 AOUT3R"},
{"CPB Line Out", NULL, "codec-1 AOUT4L"},
{"CPB Line Out", NULL, "codec-1 AOUT4R"},
{"codec-1 AIN1L", NULL, "CPB Stereo Mic 1"},
{"codec-1 AIN1R", NULL, "CPB Stereo Mic 1"},
{"codec-1 AIN2L", NULL, "CPB Stereo Mic 2"},
{"codec-1 AIN2R", NULL, "CPB Stereo Mic 2"},
{"codec-1 AIN3L", NULL, "CPB Line In"},
{"codec-1 AIN3R", NULL, "CPB Line In"},
};
static const struct snd_soc_dapm_widget j721e_ivi_codec_a_dapm_widgets[] = {
SND_SOC_DAPM_LINE("IVI A Line Out 1", NULL),
SND_SOC_DAPM_LINE("IVI A Line Out 2", NULL),
SND_SOC_DAPM_LINE("IVI A Line Out 3", NULL),
SND_SOC_DAPM_LINE("IVI A Line Out 4", NULL),
SND_SOC_DAPM_MIC("IVI A Stereo Mic 1", NULL),
SND_SOC_DAPM_MIC("IVI A Stereo Mic 2", NULL),
SND_SOC_DAPM_LINE("IVI A Line In", NULL),
};
static const struct snd_soc_dapm_route j721e_codec_a_dapm_routes[] = {
{"IVI A Line Out 1", NULL, "codec-a AOUT1L"},
{"IVI A Line Out 1", NULL, "codec-a AOUT1R"},
{"IVI A Line Out 2", NULL, "codec-a AOUT2L"},
{"IVI A Line Out 2", NULL, "codec-a AOUT2R"},
{"IVI A Line Out 3", NULL, "codec-a AOUT3L"},
{"IVI A Line Out 3", NULL, "codec-a AOUT3R"},
{"IVI A Line Out 4", NULL, "codec-a AOUT4L"},
{"IVI A Line Out 4", NULL, "codec-a AOUT4R"},
{"codec-a AIN1L", NULL, "IVI A Stereo Mic 1"},
{"codec-a AIN1R", NULL, "IVI A Stereo Mic 1"},
{"codec-a AIN2L", NULL, "IVI A Stereo Mic 2"},
{"codec-a AIN2R", NULL, "IVI A Stereo Mic 2"},
{"codec-a AIN3L", NULL, "IVI A Line In"},
{"codec-a AIN3R", NULL, "IVI A Line In"},
};
static const struct snd_soc_dapm_widget j721e_ivi_codec_b_dapm_widgets[] = {
SND_SOC_DAPM_LINE("IVI B Line Out 1", NULL),
SND_SOC_DAPM_LINE("IVI B Line Out 2", NULL),
SND_SOC_DAPM_LINE("IVI B Line Out 3", NULL),
SND_SOC_DAPM_LINE("IVI B Line Out 4", NULL),
SND_SOC_DAPM_MIC("IVI B Stereo Mic 1", NULL),
SND_SOC_DAPM_MIC("IVI B Stereo Mic 2", NULL),
SND_SOC_DAPM_LINE("IVI B Line In", NULL),
};
static const struct snd_soc_dapm_route j721e_codec_b_dapm_routes[] = {
{"IVI B Line Out 1", NULL, "codec-b AOUT1L"},
{"IVI B Line Out 1", NULL, "codec-b AOUT1R"},
{"IVI B Line Out 2", NULL, "codec-b AOUT2L"},
{"IVI B Line Out 2", NULL, "codec-b AOUT2R"},
{"IVI B Line Out 3", NULL, "codec-b AOUT3L"},
{"IVI B Line Out 3", NULL, "codec-b AOUT3R"},
{"IVI B Line Out 4", NULL, "codec-b AOUT4L"},
{"IVI B Line Out 4", NULL, "codec-b AOUT4R"},
{"codec-b AIN1L", NULL, "IVI B Stereo Mic 1"},
{"codec-b AIN1R", NULL, "IVI B Stereo Mic 1"},
{"codec-b AIN2L", NULL, "IVI B Stereo Mic 2"},
{"codec-b AIN2R", NULL, "IVI B Stereo Mic 2"},
{"codec-b AIN3L", NULL, "IVI B Line In"},
{"codec-b AIN3R", NULL, "IVI B Line In"},
};
static int j721e_configure_refclk(struct j721e_priv *priv,
unsigned int audio_domain, unsigned int rate)
{
struct j721e_audio_domain *domain = &priv->audio_domains[audio_domain];
unsigned int scki;
int ret = -EINVAL;
int i, clk_id;
if (!(rate % 8000) && priv->pll_rates[J721E_CLK_PARENT_48000])
clk_id = J721E_CLK_PARENT_48000;
else if (!(rate % 11025) && priv->pll_rates[J721E_CLK_PARENT_44100])
clk_id = J721E_CLK_PARENT_44100;
else
return ret;
for (i = 0; i < ARRAY_SIZE(ratios_for_pcm3168a); i++) {
scki = ratios_for_pcm3168a[i] * rate;
if (priv->pll_rates[clk_id] / scki <= J721E_MAX_CLK_HSDIV) {
ret = 0;
break;
}
}
if (ret) {
dev_err(priv->dev, "No valid clock configuration for %u Hz\n",
rate);
return ret;
}
if (priv->hsdiv_rates[domain->parent_clk_id] != scki) {
dev_dbg(priv->dev,
"%s configuration for %u Hz: %s, %dxFS (SCKI: %u Hz)\n",
audio_domain == J721E_AUDIO_DOMAIN_CPB ? "CPB" : "IVI",
rate,
clk_id == J721E_CLK_PARENT_48000 ? "PLL4" : "PLL15",
ratios_for_pcm3168a[i], scki);
if (domain->parent_clk_id != clk_id) {
ret = clk_set_parent(domain->codec.target,
domain->codec.parent[clk_id]);
if (ret)
return ret;
ret = clk_set_parent(domain->mcasp.target,
domain->mcasp.parent[clk_id]);
if (ret)
return ret;
domain->parent_clk_id = clk_id;
}
ret = clk_set_rate(domain->codec.target, scki);
if (ret) {
dev_err(priv->dev, "codec set rate failed for %u Hz\n",
scki);
return ret;
}
ret = clk_set_rate(domain->mcasp.target, scki);
if (!ret) {
priv->hsdiv_rates[domain->parent_clk_id] = scki;
} else {
dev_err(priv->dev, "mcasp set rate failed for %u Hz\n",
scki);
return ret;
}
}
return ret;
}
static int j721e_rule_rate(struct snd_pcm_hw_params *params,
struct snd_pcm_hw_rule *rule)
{
struct snd_interval *t = rule->private;
return snd_interval_refine(hw_param_interval(params, rule->var), t);
}
static int j721e_audio_startup(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
struct j721e_priv *priv = snd_soc_card_get_drvdata(rtd->card);
unsigned int domain_id = rtd->dai_link->id;
struct j721e_audio_domain *domain = &priv->audio_domains[domain_id];
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct snd_soc_dai *codec_dai;
unsigned int active_rate;
int ret = 0;
int i;
mutex_lock(&priv->mutex);
domain->active++;
if (priv->audio_domains[J721E_AUDIO_DOMAIN_CPB].rate)
active_rate = priv->audio_domains[J721E_AUDIO_DOMAIN_CPB].rate;
else
active_rate = priv->audio_domains[J721E_AUDIO_DOMAIN_IVI].rate;
if (active_rate)
ret = snd_pcm_hw_constraint_single(substream->runtime,
SNDRV_PCM_HW_PARAM_RATE,
active_rate);
else
ret = snd_pcm_hw_rule_add(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE,
j721e_rule_rate, &priv->rate_range,
SNDRV_PCM_HW_PARAM_RATE, -1);
mutex_unlock(&priv->mutex);
if (ret)
return ret;
/* Reset TDM slots to 32 */
ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 32);
if (ret && ret != -ENOTSUPP)
return ret;
for_each_rtd_codec_dais(rtd, i, codec_dai) {
ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x3, 0x3, 2, 32);
if (ret && ret != -ENOTSUPP)
return ret;
}
return 0;
}
static int j721e_audio_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
struct snd_soc_card *card = rtd->card;
struct j721e_priv *priv = snd_soc_card_get_drvdata(card);
unsigned int domain_id = rtd->dai_link->id;
struct j721e_audio_domain *domain = &priv->audio_domains[domain_id];
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct snd_soc_dai *codec_dai;
unsigned int sysclk_rate;
int slot_width = 32;
int ret;
int i;
mutex_lock(&priv->mutex);
if (domain->rate && domain->rate != params_rate(params)) {
ret = -EINVAL;
goto out;
}
if (params_width(params) == 16)
slot_width = 16;
ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, slot_width);
if (ret && ret != -ENOTSUPP)
goto out;
for_each_rtd_codec_dais(rtd, i, codec_dai) {
ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x3, 0x3, 2,
slot_width);
if (ret && ret != -ENOTSUPP)
goto out;
}
ret = j721e_configure_refclk(priv, domain_id, params_rate(params));
if (ret)
goto out;
sysclk_rate = priv->hsdiv_rates[domain->parent_clk_id];
for_each_rtd_codec_dais(rtd, i, codec_dai) {
ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk_rate,
SND_SOC_CLOCK_IN);
if (ret && ret != -ENOTSUPP) {
dev_err(priv->dev,
"codec set_sysclk failed for %u Hz\n",
sysclk_rate);
goto out;
}
}
ret = snd_soc_dai_set_sysclk(cpu_dai, MCASP_CLK_HCLK_AUXCLK,
sysclk_rate, SND_SOC_CLOCK_IN);
if (ret && ret != -ENOTSUPP) {
dev_err(priv->dev, "mcasp set_sysclk failed for %u Hz\n",
sysclk_rate);
} else {
domain->rate = params_rate(params);
ret = 0;
}
out:
mutex_unlock(&priv->mutex);
return ret;
}
static void j721e_audio_shutdown(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
struct j721e_priv *priv = snd_soc_card_get_drvdata(rtd->card);
unsigned int domain_id = rtd->dai_link->id;
struct j721e_audio_domain *domain = &priv->audio_domains[domain_id];
mutex_lock(&priv->mutex);
domain->active--;
if (!domain->active) {
domain->rate = 0;
domain->active_link = 0;
}
mutex_unlock(&priv->mutex);
}
static const struct snd_soc_ops j721e_audio_ops = {
.startup = j721e_audio_startup,
.hw_params = j721e_audio_hw_params,
.shutdown = j721e_audio_shutdown,
};
static int j721e_audio_init(struct snd_soc_pcm_runtime *rtd)
{
struct j721e_priv *priv = snd_soc_card_get_drvdata(rtd->card);
unsigned int domain_id = rtd->dai_link->id;
struct j721e_audio_domain *domain = &priv->audio_domains[domain_id];
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct snd_soc_dai *codec_dai;
unsigned int sysclk_rate;
int i, ret;
/* Set up initial clock configuration */
ret = j721e_configure_refclk(priv, domain_id, 48000);
if (ret)
return ret;
sysclk_rate = priv->hsdiv_rates[domain->parent_clk_id];
for_each_rtd_codec_dais(rtd, i, codec_dai) {
ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk_rate,
SND_SOC_CLOCK_IN);
if (ret && ret != -ENOTSUPP)
return ret;
}
ret = snd_soc_dai_set_sysclk(cpu_dai, MCASP_CLK_HCLK_AUXCLK,
sysclk_rate, SND_SOC_CLOCK_IN);
if (ret && ret != -ENOTSUPP)
return ret;
/* Set initial tdm slots */
ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 32);
if (ret && ret != -ENOTSUPP)
return ret;
for_each_rtd_codec_dais(rtd, i, codec_dai) {
ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x3, 0x3, 2, 32);
if (ret && ret != -ENOTSUPP)
return ret;
}
return 0;
}
static int j721e_audio_init_ivi(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dapm_context *dapm = &rtd->card->dapm;
snd_soc_dapm_new_controls(dapm, j721e_ivi_codec_a_dapm_widgets,
ARRAY_SIZE(j721e_ivi_codec_a_dapm_widgets));
snd_soc_dapm_add_routes(dapm, j721e_codec_a_dapm_routes,
ARRAY_SIZE(j721e_codec_a_dapm_routes));
snd_soc_dapm_new_controls(dapm, j721e_ivi_codec_b_dapm_widgets,
ARRAY_SIZE(j721e_ivi_codec_b_dapm_widgets));
snd_soc_dapm_add_routes(dapm, j721e_codec_b_dapm_routes,
ARRAY_SIZE(j721e_codec_b_dapm_routes));
return j721e_audio_init(rtd);
}
static int j721e_get_clocks(struct device *dev,
struct j721e_audio_clocks *clocks, char *prefix)
{
struct clk *parent;
char *clk_name;
int ret;
clocks->target = devm_clk_get(dev, prefix);
if (IS_ERR(clocks->target)) {
ret = PTR_ERR(clocks->target);
if (ret != -EPROBE_DEFER)
dev_err(dev, "failed to acquire %s: %d\n",
prefix, ret);
return ret;
}
clk_name = kasprintf(GFP_KERNEL, "%s-48000", prefix);
if (clk_name) {
parent = devm_clk_get(dev, clk_name);
kfree(clk_name);
if (IS_ERR(parent)) {
ret = PTR_ERR(parent);
if (ret == -EPROBE_DEFER)
return ret;
dev_dbg(dev, "no 48KHz parent for %s: %d\n", prefix, ret);
parent = NULL;
}
clocks->parent[J721E_CLK_PARENT_48000] = parent;
} else {
return -ENOMEM;
}
clk_name = kasprintf(GFP_KERNEL, "%s-44100", prefix);
if (clk_name) {
parent = devm_clk_get(dev, clk_name);
kfree(clk_name);
if (IS_ERR(parent)) {
ret = PTR_ERR(parent);
if (ret == -EPROBE_DEFER)
return ret;
dev_dbg(dev, "no 44.1KHz parent for %s: %d\n", prefix, ret);
parent = NULL;
}
clocks->parent[J721E_CLK_PARENT_44100] = parent;
} else {
return -ENOMEM;
}
if (!clocks->parent[J721E_CLK_PARENT_44100] &&
!clocks->parent[J721E_CLK_PARENT_48000]) {
dev_err(dev, "At least one parent clock is needed for %s\n",
prefix);
return -EINVAL;
}
return 0;
}
static const struct j721e_audio_match_data j721e_cpb_data = {
.board_type = J721E_BOARD_CPB,
.num_links = 2, /* CPB pcm3168a */
.pll_rates = {
[J721E_CLK_PARENT_44100] = 1083801600, /* PLL15 */
[J721E_CLK_PARENT_48000] = 1179648000, /* PLL4 */
},
};
static const struct j721e_audio_match_data j721e_cpb_ivi_data = {
.board_type = J721E_BOARD_CPB_IVI,
.num_links = 4, /* CPB pcm3168a + 2x pcm3168a on IVI */
.pll_rates = {
[J721E_CLK_PARENT_44100] = 1083801600, /* PLL15 */
[J721E_CLK_PARENT_48000] = 1179648000, /* PLL4 */
},
};
static const struct of_device_id j721e_audio_of_match[] = {
{
.compatible = "ti,j721e-cpb-audio",
.data = &j721e_cpb_data,
}, {
.compatible = "ti,j721e-cpb-ivi-audio",
.data = &j721e_cpb_ivi_data,
},
{ },
};
MODULE_DEVICE_TABLE(of, j721e_audio_of_match);
static int j721e_calculate_rate_range(struct j721e_priv *priv)
{
const struct j721e_audio_match_data *match_data = priv->match_data;
struct j721e_audio_clocks *domain_clocks;
unsigned int min_rate, max_rate, pll_rate;
struct clk *pll;
domain_clocks = &priv->audio_domains[J721E_AUDIO_DOMAIN_CPB].mcasp;
pll = clk_get_parent(domain_clocks->parent[J721E_CLK_PARENT_44100]);
if (IS_ERR_OR_NULL(pll)) {
priv->pll_rates[J721E_CLK_PARENT_44100] =
match_data->pll_rates[J721E_CLK_PARENT_44100];
} else {
priv->pll_rates[J721E_CLK_PARENT_44100] = clk_get_rate(pll);
clk_put(pll);
}
pll = clk_get_parent(domain_clocks->parent[J721E_CLK_PARENT_48000]);
if (IS_ERR_OR_NULL(pll)) {
priv->pll_rates[J721E_CLK_PARENT_48000] =
match_data->pll_rates[J721E_CLK_PARENT_48000];
} else {
priv->pll_rates[J721E_CLK_PARENT_48000] = clk_get_rate(pll);
clk_put(pll);
}
if (!priv->pll_rates[J721E_CLK_PARENT_44100] &&
!priv->pll_rates[J721E_CLK_PARENT_48000]) {
dev_err(priv->dev, "At least one PLL is needed\n");
return -EINVAL;
}
if (priv->pll_rates[J721E_CLK_PARENT_44100])
pll_rate = priv->pll_rates[J721E_CLK_PARENT_44100];
else
pll_rate = priv->pll_rates[J721E_CLK_PARENT_48000];
min_rate = pll_rate / J721E_MAX_CLK_HSDIV;
min_rate /= ratios_for_pcm3168a[ARRAY_SIZE(ratios_for_pcm3168a) - 1];
if (priv->pll_rates[J721E_CLK_PARENT_48000])
pll_rate = priv->pll_rates[J721E_CLK_PARENT_48000];
else
pll_rate = priv->pll_rates[J721E_CLK_PARENT_44100];
if (pll_rate > PCM1368A_MAX_SYSCLK)
pll_rate = PCM1368A_MAX_SYSCLK;
max_rate = pll_rate / ratios_for_pcm3168a[0];
snd_interval_any(&priv->rate_range);
priv->rate_range.min = min_rate;
priv->rate_range.max = max_rate;
return 0;
}
static int j721e_soc_probe_cpb(struct j721e_priv *priv, int *link_idx,
int *conf_idx)
{
struct device_node *node = priv->dev->of_node;
struct snd_soc_dai_link_component *compnent;
struct device_node *dai_node, *codec_node;
struct j721e_audio_domain *domain;
int comp_count, comp_idx;
int ret;
dai_node = of_parse_phandle(node, "ti,cpb-mcasp", 0);
if (!dai_node) {
dev_err(priv->dev, "CPB McASP node is not provided\n");
return -EINVAL;
}
codec_node = of_parse_phandle(node, "ti,cpb-codec", 0);
if (!codec_node) {
dev_err(priv->dev, "CPB codec node is not provided\n");
return -EINVAL;
}
domain = &priv->audio_domains[J721E_AUDIO_DOMAIN_CPB];
ret = j721e_get_clocks(priv->dev, &domain->codec, "cpb-codec-scki");
if (ret)
return ret;
ret = j721e_get_clocks(priv->dev, &domain->mcasp, "cpb-mcasp-auxclk");
if (ret)
return ret;
/*
* Common Processor Board, two links
* Link 1: McASP10 -> pcm3168a_1 DAC
* Link 2: McASP10 <- pcm3168a_1 ADC
*/
comp_count = 6;
compnent = devm_kzalloc(priv->dev, comp_count * sizeof(*compnent),
GFP_KERNEL);
if (!compnent)
return -ENOMEM;
comp_idx = 0;
priv->dai_links[*link_idx].cpus = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_cpus = 1;
priv->dai_links[*link_idx].codecs = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_codecs = 1;
priv->dai_links[*link_idx].platforms = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_platforms = 1;
priv->dai_links[*link_idx].name = "CPB PCM3168A Playback";
priv->dai_links[*link_idx].stream_name = "CPB PCM3168A Analog";
priv->dai_links[*link_idx].cpus->of_node = dai_node;
priv->dai_links[*link_idx].platforms->of_node = dai_node;
priv->dai_links[*link_idx].codecs->of_node = codec_node;
priv->dai_links[*link_idx].codecs->dai_name = "pcm3168a-dac";
priv->dai_links[*link_idx].playback_only = 1;
priv->dai_links[*link_idx].id = J721E_AUDIO_DOMAIN_CPB;
priv->dai_links[*link_idx].dai_fmt = J721E_DAI_FMT;
priv->dai_links[*link_idx].init = j721e_audio_init;
priv->dai_links[*link_idx].ops = &j721e_audio_ops;
(*link_idx)++;
priv->dai_links[*link_idx].cpus = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_cpus = 1;
priv->dai_links[*link_idx].codecs = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_codecs = 1;
priv->dai_links[*link_idx].platforms = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_platforms = 1;
priv->dai_links[*link_idx].name = "CPB PCM3168A Capture";
priv->dai_links[*link_idx].stream_name = "CPB PCM3168A Analog";
priv->dai_links[*link_idx].cpus->of_node = dai_node;
priv->dai_links[*link_idx].platforms->of_node = dai_node;
priv->dai_links[*link_idx].codecs->of_node = codec_node;
priv->dai_links[*link_idx].codecs->dai_name = "pcm3168a-adc";
priv->dai_links[*link_idx].capture_only = 1;
priv->dai_links[*link_idx].id = J721E_AUDIO_DOMAIN_CPB;
priv->dai_links[*link_idx].dai_fmt = J721E_DAI_FMT;
priv->dai_links[*link_idx].init = j721e_audio_init;
priv->dai_links[*link_idx].ops = &j721e_audio_ops;
(*link_idx)++;
priv->codec_conf[*conf_idx].dlc.of_node = codec_node;
priv->codec_conf[*conf_idx].name_prefix = "codec-1";
(*conf_idx)++;
priv->codec_conf[*conf_idx].dlc.of_node = dai_node;
priv->codec_conf[*conf_idx].name_prefix = "McASP10";
(*conf_idx)++;
return 0;
}
static int j721e_soc_probe_ivi(struct j721e_priv *priv, int *link_idx,
int *conf_idx)
{
struct device_node *node = priv->dev->of_node;
struct snd_soc_dai_link_component *compnent;
struct device_node *dai_node, *codeca_node, *codecb_node;
struct j721e_audio_domain *domain;
int comp_count, comp_idx;
int ret;
if (priv->match_data->board_type != J721E_BOARD_CPB_IVI)
return 0;
dai_node = of_parse_phandle(node, "ti,ivi-mcasp", 0);
if (!dai_node) {
dev_err(priv->dev, "IVI McASP node is not provided\n");
return -EINVAL;
}
codeca_node = of_parse_phandle(node, "ti,ivi-codec-a", 0);
if (!codeca_node) {
dev_err(priv->dev, "IVI codec-a node is not provided\n");
return -EINVAL;
}
codecb_node = of_parse_phandle(node, "ti,ivi-codec-b", 0);
if (!codecb_node) {
dev_warn(priv->dev, "IVI codec-b node is not provided\n");
return 0;
}
domain = &priv->audio_domains[J721E_AUDIO_DOMAIN_IVI];
ret = j721e_get_clocks(priv->dev, &domain->codec, "ivi-codec-scki");
if (ret)
return ret;
ret = j721e_get_clocks(priv->dev, &domain->mcasp, "ivi-mcasp-auxclk");
if (ret)
return ret;
/*
* IVI extension, two links
* Link 1: McASP0 -> pcm3168a_a DAC
* \> pcm3168a_b DAC
* Link 2: McASP0 <- pcm3168a_a ADC
* \ pcm3168a_b ADC
*/
comp_count = 8;
compnent = devm_kzalloc(priv->dev, comp_count * sizeof(*compnent),
GFP_KERNEL);
if (!compnent)
return -ENOMEM;
comp_idx = 0;
priv->dai_links[*link_idx].cpus = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_cpus = 1;
priv->dai_links[*link_idx].platforms = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_platforms = 1;
priv->dai_links[*link_idx].codecs = &compnent[comp_idx];
priv->dai_links[*link_idx].num_codecs = 2;
comp_idx += 2;
priv->dai_links[*link_idx].name = "IVI 2xPCM3168A Playback";
priv->dai_links[*link_idx].stream_name = "IVI 2xPCM3168A Analog";
priv->dai_links[*link_idx].cpus->of_node = dai_node;
priv->dai_links[*link_idx].platforms->of_node = dai_node;
priv->dai_links[*link_idx].codecs[0].of_node = codeca_node;
priv->dai_links[*link_idx].codecs[0].dai_name = "pcm3168a-dac";
priv->dai_links[*link_idx].codecs[1].of_node = codecb_node;
priv->dai_links[*link_idx].codecs[1].dai_name = "pcm3168a-dac";
priv->dai_links[*link_idx].playback_only = 1;
priv->dai_links[*link_idx].id = J721E_AUDIO_DOMAIN_IVI;
priv->dai_links[*link_idx].dai_fmt = J721E_DAI_FMT;
priv->dai_links[*link_idx].init = j721e_audio_init_ivi;
priv->dai_links[*link_idx].ops = &j721e_audio_ops;
(*link_idx)++;
priv->dai_links[*link_idx].cpus = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_cpus = 1;
priv->dai_links[*link_idx].platforms = &compnent[comp_idx++];
priv->dai_links[*link_idx].num_platforms = 1;
priv->dai_links[*link_idx].codecs = &compnent[comp_idx];
priv->dai_links[*link_idx].num_codecs = 2;
priv->dai_links[*link_idx].name = "IVI 2xPCM3168A Capture";
priv->dai_links[*link_idx].stream_name = "IVI 2xPCM3168A Analog";
priv->dai_links[*link_idx].cpus->of_node = dai_node;
priv->dai_links[*link_idx].platforms->of_node = dai_node;
priv->dai_links[*link_idx].codecs[0].of_node = codeca_node;
priv->dai_links[*link_idx].codecs[0].dai_name = "pcm3168a-adc";
priv->dai_links[*link_idx].codecs[1].of_node = codecb_node;
priv->dai_links[*link_idx].codecs[1].dai_name = "pcm3168a-adc";
priv->dai_links[*link_idx].capture_only = 1;
priv->dai_links[*link_idx].id = J721E_AUDIO_DOMAIN_IVI;
priv->dai_links[*link_idx].dai_fmt = J721E_DAI_FMT;
priv->dai_links[*link_idx].init = j721e_audio_init;
priv->dai_links[*link_idx].ops = &j721e_audio_ops;
(*link_idx)++;
priv->codec_conf[*conf_idx].dlc.of_node = codeca_node;
priv->codec_conf[*conf_idx].name_prefix = "codec-a";
(*conf_idx)++;
priv->codec_conf[*conf_idx].dlc.of_node = codecb_node;
priv->codec_conf[*conf_idx].name_prefix = "codec-b";
(*conf_idx)++;
priv->codec_conf[*conf_idx].dlc.of_node = dai_node;
priv->codec_conf[*conf_idx].name_prefix = "McASP0";
(*conf_idx)++;
return 0;
}
static int j721e_soc_probe(struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
struct snd_soc_card *card;
const struct of_device_id *match;
struct j721e_priv *priv;
int link_cnt, conf_cnt, ret;
if (!node) {
dev_err(&pdev->dev, "of node is missing.\n");
return -ENODEV;
}
match = of_match_node(j721e_audio_of_match, node);
if (!match) {
dev_err(&pdev->dev, "No compatible match found\n");
return -ENODEV;
}
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->match_data = match->data;
priv->dai_links = devm_kcalloc(&pdev->dev, priv->match_data->num_links,
sizeof(*priv->dai_links), GFP_KERNEL);
if (!priv->dai_links)
return -ENOMEM;
priv->audio_domains[J721E_AUDIO_DOMAIN_CPB].parent_clk_id = -1;
priv->audio_domains[J721E_AUDIO_DOMAIN_IVI].parent_clk_id = -1;
priv->dev = &pdev->dev;
card = &priv->card;
card->dev = &pdev->dev;
card->owner = THIS_MODULE;
card->dapm_widgets = j721e_cpb_dapm_widgets;
card->num_dapm_widgets = ARRAY_SIZE(j721e_cpb_dapm_widgets);
card->dapm_routes = j721e_cpb_dapm_routes;
card->num_dapm_routes = ARRAY_SIZE(j721e_cpb_dapm_routes);
card->fully_routed = 1;
if (snd_soc_of_parse_card_name(card, "model")) {
dev_err(&pdev->dev, "Card name is not provided\n");
return -ENODEV;
}
link_cnt = 0;
conf_cnt = 0;
ret = j721e_soc_probe_cpb(priv, &link_cnt, &conf_cnt);
if (ret)
return ret;
ret = j721e_soc_probe_ivi(priv, &link_cnt, &conf_cnt);
if (ret)
return ret;
card->dai_link = priv->dai_links;
card->num_links = link_cnt;
card->codec_conf = priv->codec_conf;
card->num_configs = conf_cnt;
ret = j721e_calculate_rate_range(priv);
if (ret)
return ret;
snd_soc_card_set_drvdata(card, priv);
mutex_init(&priv->mutex);
ret = devm_snd_soc_register_card(&pdev->dev, card);
if (ret)
dev_err(&pdev->dev, "devm_snd_soc_register_card() failed: %d\n",
ret);
return ret;
}
static struct platform_driver j721e_soc_driver = {
.driver = {
.name = "j721e-audio",
.pm = &snd_soc_pm_ops,
.of_match_table = of_match_ptr(j721e_audio_of_match),
},
.probe = j721e_soc_probe,
};
module_platform_driver(j721e_soc_driver);
MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");
MODULE_DESCRIPTION("ASoC machine driver for j721e Common Processor Board");
MODULE_LICENSE("GPL v2");
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