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// SPDX-License-Identifier: GPL-2.0-only
/*
* trimslice.c - TrimSlice machine ASoC driver
*
* Copyright (C) 2011 - CompuLab, Ltd.
* Author: Mike Rapoport <mike@compulab.co.il>
*
* Based on code copyright/by:
* Author: Stephen Warren <swarren@nvidia.com>
* Copyright (C) 2010-2011 - NVIDIA, Inc.
*/
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include "../codecs/tlv320aic23.h"
#include "tegra_asoc_utils.h"
#define DRV_NAME "tegra-snd-trimslice"
struct tegra_trimslice {
struct tegra_asoc_utils_data util_data;
};
static int trimslice_asoc_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 = asoc_rtd_to_codec(rtd, 0);
struct snd_soc_card *card = rtd->card;
struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);
int srate, mclk;
int err;
srate = params_rate(params);
mclk = 128 * srate;
err = tegra_asoc_utils_set_rate(&trimslice->util_data, srate, mclk);
if (err < 0) {
dev_err(card->dev, "Can't configure clocks\n");
return err;
}
err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
SND_SOC_CLOCK_IN);
if (err < 0) {
dev_err(card->dev, "codec_dai clock not set\n");
return err;
}
return 0;
}
static const struct snd_soc_ops trimslice_asoc_ops = {
.hw_params = trimslice_asoc_hw_params,
};
static const struct snd_soc_dapm_widget trimslice_dapm_widgets[] = {
SND_SOC_DAPM_HP("Line Out", NULL),
SND_SOC_DAPM_LINE("Line In", NULL),
};
static const struct snd_soc_dapm_route trimslice_audio_map[] = {
{"Line Out", NULL, "LOUT"},
{"Line Out", NULL, "ROUT"},
{"LLINEIN", NULL, "Line In"},
{"RLINEIN", NULL, "Line In"},
};
SND_SOC_DAILINK_DEFS(single_dsp,
DAILINK_COMP_ARRAY(COMP_EMPTY()),
DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "tlv320aic23-hifi")),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
static struct snd_soc_dai_link trimslice_tlv320aic23_dai = {
.name = "TLV320AIC23",
.stream_name = "AIC23",
.ops = &trimslice_asoc_ops,
.dai_fmt = SND_SOC_DAIFMT_I2S |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
SND_SOC_DAILINK_REG(single_dsp),
};
static struct snd_soc_card snd_soc_trimslice = {
.name = "tegra-trimslice",
.owner = THIS_MODULE,
.dai_link = &trimslice_tlv320aic23_dai,
.num_links = 1,
.dapm_widgets = trimslice_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(trimslice_dapm_widgets),
.dapm_routes = trimslice_audio_map,
.num_dapm_routes = ARRAY_SIZE(trimslice_audio_map),
.fully_routed = true,
};
static int tegra_snd_trimslice_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct snd_soc_card *card = &snd_soc_trimslice;
struct tegra_trimslice *trimslice;
int ret;
trimslice = devm_kzalloc(&pdev->dev, sizeof(struct tegra_trimslice),
GFP_KERNEL);
if (!trimslice)
return -ENOMEM;
card->dev = &pdev->dev;
snd_soc_card_set_drvdata(card, trimslice);
trimslice_tlv320aic23_dai.codecs->of_node = of_parse_phandle(np,
"nvidia,audio-codec", 0);
if (!trimslice_tlv320aic23_dai.codecs->of_node) {
dev_err(&pdev->dev,
"Property 'nvidia,audio-codec' missing or invalid\n");
return -EINVAL;
}
trimslice_tlv320aic23_dai.cpus->of_node = of_parse_phandle(np,
"nvidia,i2s-controller", 0);
if (!trimslice_tlv320aic23_dai.cpus->of_node) {
dev_err(&pdev->dev,
"Property 'nvidia,i2s-controller' missing or invalid\n");
return -EINVAL;
}
trimslice_tlv320aic23_dai.platforms->of_node =
trimslice_tlv320aic23_dai.cpus->of_node;
ret = tegra_asoc_utils_init(&trimslice->util_data, &pdev->dev);
if (ret)
return ret;
ret = snd_soc_register_card(card);
if (ret) {
dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
ret);
return ret;
}
return 0;
}
static int tegra_snd_trimslice_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
snd_soc_unregister_card(card);
return 0;
}
static const struct of_device_id trimslice_of_match[] = {
{ .compatible = "nvidia,tegra-audio-trimslice", },
{},
};
MODULE_DEVICE_TABLE(of, trimslice_of_match);
static struct platform_driver tegra_snd_trimslice_driver = {
.driver = {
.name = DRV_NAME,
.of_match_table = trimslice_of_match,
},
.probe = tegra_snd_trimslice_probe,
.remove = tegra_snd_trimslice_remove,
};
module_platform_driver(tegra_snd_trimslice_driver);
MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
MODULE_DESCRIPTION("Trimslice machine ASoC driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:" DRV_NAME);
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