Unverified Commit 96384a34 authored by Niranjan H Y's avatar Niranjan H Y Committed by Mark Brown
Browse files

ASoc: tas2783A: machine driver amp utility for TI devices 



  Machine driver amp utility file to initialize and support
multiple tas2783a devices are added.

Reviewed-by: default avatarBard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: default avatarNiranjan H Y <niranjan.hy@ti.com>
--
v5:
- removed empty line in soc_sdw_ti_amp.c
Link: https://patch.msgid.link/20250912083624.804-3-niranjan.hy@ti.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 4cc9bd8d

include/sound/soc_sdw_utils.h

+8 −0
Original line number Diff line number Diff line
@@ -248,5 +248,13 @@ int asoc_sdw_cs42l43_spk_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_so 
int asoc_sdw_cs42l43_dmic_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai);

int asoc_sdw_cs_spk_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai);

int asoc_sdw_maxim_spk_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai);

/* TI */

int asoc_sdw_ti_amp_init(struct snd_soc_card *card,

			 struct snd_soc_dai_link *dai_links,

			 struct asoc_sdw_codec_info *info,

			 bool playback);

int asoc_sdw_ti_spk_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai);

int asoc_sdw_ti_amp_initial_settings(struct snd_soc_card *card,

				     const char *name_prefix);



#endif

sound/soc/sdw_utils/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -6,5 +6,6 @@ snd-soc-sdw-utils-y := soc_sdw_utils.o soc_sdw_dmic.o soc_sdw_rt_dmic.o \ 
		       soc_sdw_bridge_cs35l56.o 			\

		       soc_sdw_cs42l42.o soc_sdw_cs42l43.o 		\

		       soc_sdw_cs_amp.o					\

		       soc_sdw_maxim.o

		       soc_sdw_maxim.o \

		       soc_sdw_ti_amp.o

obj-$(CONFIG_SND_SOC_SDW_UTILS) += snd-soc-sdw-utils.o

sound/soc/sdw_utils/soc_sdw_ti_amp.c

0 → 100644
+92 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

// Copyright (c) 2025 Texas Instruments Inc.



/*

 *  soc_sdw_ti_amp - Helpers to handle TI's soundwire based codecs

 */



#include <linux/device.h>

#include <linux/errno.h>

#include <sound/soc.h>

#include <sound/soc-acpi.h>

#include <sound/soc-dai.h>

#include <sound/soc_sdw_utils.h>



#define TIAMP_SPK_VOLUME_0DB		200



int asoc_sdw_ti_amp_initial_settings(struct snd_soc_card *card,

				     const char *name_prefix)

{

	char *volume_ctl_name;

	int ret;



	volume_ctl_name = kasprintf(GFP_KERNEL, "%s Speaker Volume",

				    name_prefix);

	if (!volume_ctl_name)

		return -ENOMEM;



	ret = snd_soc_limit_volume(card, volume_ctl_name,

				   TIAMP_SPK_VOLUME_0DB);

	if (ret)

		dev_err(card->dev,

			"%s update failed %d\n",

			volume_ctl_name, ret);



	kfree(volume_ctl_name);

	return 0;

}

EXPORT_SYMBOL_NS(asoc_sdw_ti_amp_initial_settings, "SND_SOC_SDW_UTILS");



int asoc_sdw_ti_spk_rtd_init(struct snd_soc_pcm_runtime *rtd,

			     struct snd_soc_dai *dai)

{

	struct snd_soc_card *card = rtd->card;

	char widget_name[16];

	char speaker[16];

	struct snd_soc_dapm_route route = {speaker, NULL, widget_name};

	struct snd_soc_dai *codec_dai;

	const char *prefix;

	int i, ret = 0;



	for_each_rtd_codec_dais(rtd, i, codec_dai) {

		if (!strstr(codec_dai->name, "tas2783"))

			continue;



		prefix = codec_dai->component->name_prefix;

		if (!strncmp(prefix, "tas2783-1", strlen("tas2783-1"))) {

			strscpy(speaker, "Left Spk", sizeof(speaker));

		} else if (!strncmp(prefix, "tas2783-2", strlen("tas2783-2"))) {

			strscpy(speaker, "Right Spk", sizeof(speaker));

		} else {

			ret = -EINVAL;

			dev_err(card->dev, "unhandled prefix %s", prefix);

			break;

		}



		snprintf(widget_name, sizeof(widget_name), "%s SPK", prefix);

		ret = asoc_sdw_ti_amp_initial_settings(card, prefix);

		if (ret)

			return ret;



		ret = snd_soc_dapm_add_routes(&card->dapm, &route, 1);

		if (ret)

			return ret;

	}



	return ret;

}

EXPORT_SYMBOL_NS(asoc_sdw_ti_spk_rtd_init, "SND_SOC_SDW_UTILS");



int asoc_sdw_ti_amp_init(struct snd_soc_card *card,

			 struct snd_soc_dai_link *dai_links,

			 struct asoc_sdw_codec_info *info,

			 bool playback)

{

	if (!playback)

		return 0;



	info->amp_num++;



	return 0;

}

EXPORT_SYMBOL_NS(asoc_sdw_ti_amp_init, "SND_SOC_SDW_UTILS");