linux/sound/soc/fsl/imx-hdmi.c

// SPDX-License-Identifier: GPL-2.0
// Copyright 2017-2020 NXP

#include <linux/module.h>
#include <linux/of_platform.h>
#include <sound/jack.h>
#include <sound/pcm_params.h>
#include <sound/hdmi-codec.h>
#include "fsl_sai.h"

/**
 * struct cpu_priv - CPU private data
 * @sysclk_id: SYSCLK ids for set_sysclk()
 * @slot_width: Slot width of each frame
 *
 * Note: [1] for tx and [0] for rx
 */
struct cpu_priv { … };

struct imx_hdmi_data { … };

static int imx_hdmi_hw_params(struct snd_pcm_substream *substream,
			      struct snd_pcm_hw_params *params)
{ … }

static const struct snd_soc_ops imx_hdmi_ops = …;

static const struct snd_soc_dapm_widget imx_hdmi_widgets[] = …;

static int imx_hdmi_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_card *card = rtd->card;
	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
	struct snd_soc_component *component = codec_dai->component;
	struct imx_hdmi_data *data = snd_soc_card_get_drvdata(card);
	int ret;

	data->hdmi_jack_pin.pin = "HDMI Jack";
	data->hdmi_jack_pin.mask = SND_JACK_LINEOUT;
	/* enable jack detection */
	ret = snd_soc_card_jack_new_pins(card, "HDMI Jack", SND_JACK_LINEOUT,
					 &data->hdmi_jack,
					 &data->hdmi_jack_pin, 1);
	if (ret) {
		dev_err(card->dev, "Can't new HDMI Jack %d\n", ret);
		return ret;
	}

	ret = snd_soc_component_set_jack(component, &data->hdmi_jack, NULL);
	if (ret && ret != -ENOTSUPP) {
		dev_err(card->dev, "Can't set HDMI Jack %d\n", ret);
		return ret;
	}

	return 0;
};

static int imx_hdmi_probe(struct platform_device *pdev)
{ … }

static const struct of_device_id imx_hdmi_dt_ids[] = …;
MODULE_DEVICE_TABLE(of, imx_hdmi_dt_ids);

static struct platform_driver imx_hdmi_driver = …;
module_platform_driver(…) …;

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_ALIAS(…) …;