Orange Pi5 kernel

// SPDX-License-Identifier: GPL-2.0-only
// Copyright (c) 2020 Intel Corporation
 
/*
 *  sof_sdw_hdmi - Helpers to handle HDMI from generic machine driver
 */
 
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include <sound/jack.h>
#include "sof_sdw_common.h"
#include "../../codecs/hdac_hdmi.h"
#include "hda_dsp_common.h"
 
static struct snd_soc_jack hdmi[MAX_HDMI_NUM];
 
struct hdmi_pcm {
<------>struct list_head head;
<------>struct snd_soc_dai *codec_dai;
<------>int device;
};
 
int sof_sdw_hdmi_init(struct snd_soc_pcm_runtime *rtd)
{
<------>struct mc_private *ctx = snd_soc_card_get_drvdata(rtd->card);
<------>struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0);
<------>struct hdmi_pcm *pcm;
 
<------>pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
<------>if (!pcm)
<------><------>return -ENOMEM;
 
<------>/* dai_link id is 1:1 mapped to the PCM device */
<------>pcm->device = rtd->dai_link->id;
<------>pcm->codec_dai = dai;
 
<------>list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
 
<------>return 0;
}
 
#define NAME_SIZE	32
int sof_sdw_hdmi_card_late_probe(struct snd_soc_card *card)
{
<------>struct mc_private *ctx = snd_soc_card_get_drvdata(card);
<------>struct hdmi_pcm *pcm;
<------>struct snd_soc_component *component = NULL;
<------>int err, i = 0;
<------>char jack_name[NAME_SIZE];
 
<------>if (!ctx->idisp_codec)
<------><------>return 0;
 
<------>if (list_empty(&ctx->hdmi_pcm_list))
<------><------>return -EINVAL;
 
<------>pcm = list_first_entry(&ctx->hdmi_pcm_list, struct hdmi_pcm,
<------><------><------>       head);
<------>component = pcm->codec_dai->component;
 
<------>if (ctx->common_hdmi_codec_drv)
<------><------>return hda_dsp_hdmi_build_controls(card, component);
 
<------>list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) {
<------><------>component = pcm->codec_dai->component;
<------><------>snprintf(jack_name, sizeof(jack_name),
<------><------><------> "HDMI/DP, pcm=%d Jack", pcm->device);
<------><------>err = snd_soc_card_jack_new(card, jack_name,
<------><------><------><------><------>    SND_JACK_AVOUT, &hdmi[i],
<------><------><------><------><------>    NULL, 0);
 
<------><------>if (err)
<------><------><------>return err;
 
<------><------>err = snd_jack_add_new_kctl(hdmi[i].jack,
<------><------><------><------><------>    jack_name, SND_JACK_AVOUT);
<------><------>if (err)
<------><------><------>dev_warn(component->dev, "failed creating Jack kctl\n");
 
<------><------>err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device,
<------><------><------><------><------>  &hdmi[i]);
<------><------>if (err < 0)
<------><------><------>return err;
 
<------><------>i++;
<------>}
 
<------>if (!component)
<------><------>return -EINVAL;
 
<------>return hdac_hdmi_jack_port_init(component, &card->dapm);
}