// 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 "hda_dsp_common.h" 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; 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; return hda_dsp_hdmi_build_controls(card, component); }