// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright 2011 Freescale Semiconductor , Inc .
*/
#include <linux/module.h>
#include <linux/device.h>
#include <linux/of.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include <sound/soc-dapm.h>
#include "../codecs/sgtl5000.h"
#include "mxs-saif.h"
static int mxs_sgtl5000_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0 );
struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0 );
unsigned int rate = params_rate(params);
u32 mclk;
int ret;
/* sgtl5000 does not support 512*rate when in 96000 fs */
switch (rate) {
case 96000 :
mclk = 256 * rate;
break ;
default :
mclk = 512 * rate;
break ;
}
/* Set SGTL5000's SYSCLK (provided by SAIF MCLK) */
ret = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, mclk, 0 );
if (ret) {
dev_err(codec_dai->dev, "Failed to set sysclk to %u.%03uMHz\n" ,
mclk / 1000000 , mclk / 1000 % 1000 );
return ret;
}
/* The SAIF MCLK should be the same as SGTL5000_SYSCLK */
ret = snd_soc_dai_set_sysclk(cpu_dai, MXS_SAIF_MCLK, mclk, 0 );
if (ret) {
dev_err(cpu_dai->dev, "Failed to set sysclk to %u.%03uMHz\n" ,
mclk / 1000000 , mclk / 1000 % 1000 );
return ret;
}
return 0 ;
}
static const struct snd_soc_ops mxs_sgtl5000_hifi_ops = {
.hw_params = mxs_sgtl5000_hw_params,
};
#define MXS_SGTL5000_DAI_FMT (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | \
SND_SOC_DAIFMT_CBC_CFC)
SND_SOC_DAILINK_DEFS(hifi_tx,
DAILINK_COMP_ARRAY(COMP_EMPTY()),
DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "sgtl5000" )),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
SND_SOC_DAILINK_DEFS(hifi_rx,
DAILINK_COMP_ARRAY(COMP_EMPTY()),
DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "sgtl5000" )),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
static struct snd_soc_dai_link mxs_sgtl5000_dai[] = {
{
.name = "HiFi Tx" ,
.stream_name = "HiFi Playback" ,
.dai_fmt = MXS_SGTL5000_DAI_FMT,
.ops = &mxs_sgtl5000_hifi_ops,
.playback_only = true ,
SND_SOC_DAILINK_REG(hifi_tx),
}, {
.name = "HiFi Rx" ,
.stream_name = "HiFi Capture" ,
.dai_fmt = MXS_SGTL5000_DAI_FMT,
.ops = &mxs_sgtl5000_hifi_ops,
.capture_only = true ,
SND_SOC_DAILINK_REG(hifi_rx),
},
};
static const struct snd_soc_dapm_widget mxs_sgtl5000_dapm_widgets[] = {
SND_SOC_DAPM_MIC("Mic Jack" , NULL),
SND_SOC_DAPM_LINE("Line In Jack" , NULL),
SND_SOC_DAPM_HP("Headphone Jack" , NULL),
SND_SOC_DAPM_SPK("Line Out Jack" , NULL),
SND_SOC_DAPM_SPK("Ext Spk" , NULL),
};
static struct snd_soc_card mxs_sgtl5000 = {
.name = "mxs_sgtl5000" ,
.owner = THIS_MODULE,
.dai_link = mxs_sgtl5000_dai,
.num_links = ARRAY_SIZE(mxs_sgtl5000_dai),
};
static int mxs_sgtl5000_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &mxs_sgtl5000;
int ret, i;
struct device_node *np = pdev->dev.of_node;
struct device_node *saif_np[2 ], *codec_np;
saif_np[0 ] = of_parse_phandle(np, "saif-controllers" , 0 );
saif_np[1 ] = of_parse_phandle(np, "saif-controllers" , 1 );
codec_np = of_parse_phandle(np, "audio-codec" , 0 );
if (!saif_np[0 ] || !saif_np[1 ] || !codec_np) {
dev_err(&pdev->dev, "phandle missing or invalid\n" );
of_node_put(codec_np);
of_node_put(saif_np[0 ]);
of_node_put(saif_np[1 ]);
return -EINVAL;
}
for (i = 0 ; i < 2 ; i++) {
mxs_sgtl5000_dai[i].codecs->name = NULL;
mxs_sgtl5000_dai[i].codecs->of_node = codec_np;
mxs_sgtl5000_dai[i].cpus->dai_name = NULL;
mxs_sgtl5000_dai[i].cpus->of_node = saif_np[i];
mxs_sgtl5000_dai[i].platforms->name = NULL;
mxs_sgtl5000_dai[i].platforms->of_node = saif_np[i];
}
of_node_put(codec_np);
of_node_put(saif_np[0 ]);
of_node_put(saif_np[1 ]);
/*
* Set an init clock ( 11 . 28 Mhz ) for sgtl5000 initialization ( i2c r / w ) .
* The Sgtl5000 sysclk is derived from saif0 mclk and it ' s range
* should be > = 8 MHz and < = 27 M .
*/
ret = mxs_saif_get_mclk(0 , 44100 * 256 , 44100 );
if (ret) {
dev_err(&pdev->dev, "failed to get mclk\n" );
return ret;
}
card->dev = &pdev->dev;
if (of_property_present(np, "audio-routing" )) {
card->dapm_widgets = mxs_sgtl5000_dapm_widgets;
card->num_dapm_widgets = ARRAY_SIZE(mxs_sgtl5000_dapm_widgets);
ret = snd_soc_of_parse_audio_routing(card, "audio-routing" );
if (ret) {
dev_err(&pdev->dev, "failed to parse audio-routing (%d)\n" ,
ret);
return ret;
}
}
ret = devm_snd_soc_register_card(&pdev->dev, card);
if (ret)
return dev_err_probe(&pdev->dev, ret, "snd_soc_register_card failed\n" );
return 0 ;
}
static void mxs_sgtl5000_remove(struct platform_device *pdev)
{
mxs_saif_put_mclk(0 );
}
static const struct of_device_id mxs_sgtl5000_dt_ids[] = {
{ .compatible = "fsl,mxs-audio-sgtl5000" , },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, mxs_sgtl5000_dt_ids);
static struct platform_driver mxs_sgtl5000_audio_driver = {
.driver = {
.name = "mxs-sgtl5000" ,
.of_match_table = mxs_sgtl5000_dt_ids,
},
.probe = mxs_sgtl5000_probe,
.remove = mxs_sgtl5000_remove,
};
module_platform_driver(mxs_sgtl5000_audio_driver);
MODULE_AUTHOR("Freescale Semiconductor, Inc." );
MODULE_DESCRIPTION("MXS ALSA SoC Machine driver" );
MODULE_LICENSE("GPL" );
MODULE_ALIAS("platform:mxs-sgtl5000" );
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