138a4e2a26
Hookup the CS35L56 DAPM_OUTPUT widgets to a DAPM_SPK widget so that there is a complete logical path to a speaker. There is no particular reason to use multiple speaker widgets. The CS35L56 are designed to work together as a set so they have all been connected to a single speaker widget. Instead of a hardcoded list of codec widget names, the code walks through all the codecs on the dailink and for every cs35l56 it uses its name prefix to construct the source end of the route. This adds a small amount of overhead during probe but has the benefit that it isn't dependent on every system using the same prefixes. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://lore.kernel.org/r/20231205135001.2506070-1-rf@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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// Copyright (c) 2023 Intel Corporation
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/*
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* sof_sdw_cs_amp - Helpers to handle CS35L56 from generic machine driver
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*/
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#include <linux/device.h>
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#include <linux/errno.h>
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#include <sound/soc.h>
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#include <sound/soc-acpi.h>
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#include <sound/soc-dai.h>
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#include "sof_sdw_common.h"
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#define CODEC_NAME_SIZE 8
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static const struct snd_soc_dapm_widget sof_widgets[] = {
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SND_SOC_DAPM_SPK("Speakers", NULL),
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};
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static int cs_spk_init(struct snd_soc_pcm_runtime *rtd)
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{
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const char *dai_name = rtd->dai_link->codecs->dai_name;
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struct snd_soc_card *card = rtd->card;
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char codec_name[CODEC_NAME_SIZE];
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char widget_name[16];
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struct snd_soc_dapm_route route = { "Speakers", NULL, widget_name };
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struct snd_soc_dai *codec_dai;
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int i, ret;
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snprintf(codec_name, CODEC_NAME_SIZE, "%s", dai_name);
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card->components = devm_kasprintf(card->dev, GFP_KERNEL,
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"%s spk:%s",
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card->components, codec_name);
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if (!card->components)
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return -ENOMEM;
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ret = snd_soc_dapm_new_controls(&card->dapm, sof_widgets,
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ARRAY_SIZE(sof_widgets));
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if (ret) {
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dev_err(card->dev, "widgets addition failed: %d\n", ret);
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return ret;
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}
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for_each_rtd_codec_dais(rtd, i, codec_dai) {
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if (!strstr(codec_dai->name, "cs35l56"))
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continue;
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snprintf(widget_name, sizeof(widget_name), "%s SPK",
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codec_dai->component->name_prefix);
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ret = snd_soc_dapm_add_routes(&card->dapm, &route, 1);
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if (ret)
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return ret;
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}
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return 0;
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}
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int sof_sdw_cs_amp_init(struct snd_soc_card *card,
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const struct snd_soc_acpi_link_adr *link,
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struct snd_soc_dai_link *dai_links,
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struct sof_sdw_codec_info *info,
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bool playback)
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{
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/* Do init on playback link only. */
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if (!playback)
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return 0;
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info->amp_num++;
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dai_links->init = cs_spk_init;
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return 0;
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}
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