ASoC: intel/sdw_utils: move maxim codec helper functions

Move maxim codec helper functions to common place holder so that
it can be used by other platform machine driver.

Link: https://github.com/thesofproject/linux/pull/5068
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://patch.msgid.link/20240801091446.10457-21-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

2 files changed, 150 insertions, 1 deletions

diff --git a/sound/soc/sdw_utils/Makefile b/sound/soc/sdw_utils/Makefile
index c15b08f3ab0b..28229ed96ffb 100644
--- a/sound/soc/sdw_utils/Makefile
+++ b/sound/soc/sdw_utils/Makefile
@@ -6,5 +6,6 @@ snd-soc-sdw-utils-y := soc_sdw_utils.o soc_sdw_dmic.o soc_sdw_rt_dmic.o \
 		       soc_sdw_rt_amp.o					\
 		       soc_sdw_bridge_cs35l56.o 			\
 		       soc_sdw_cs42l42.o soc_sdw_cs42l43.o 		\
-		       soc_sdw_cs_amp.o
+		       soc_sdw_cs_amp.o					\
+		       soc_sdw_maxim.o
 obj-$(CONFIG_SND_SOC_SDW_UTILS) += snd-soc-sdw-utils.o
diff --git a/sound/soc/sdw_utils/soc_sdw_maxim.c b/sound/soc/sdw_utils/soc_sdw_maxim.c
new file mode 100644
index 000000000000..cdcd8df37e1d
--- /dev/null
+++ b/sound/soc/sdw_utils/soc_sdw_maxim.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// This file incorporates work covered by the following copyright notice:
+// Copyright (c) 2020 Intel Corporation
+// Copyright (c) 2024 Advanced Micro Devices, Inc.
+//
+// soc_sdw_maxim - Helpers to handle maxim codecs
+// codec devices from generic machine driver
+
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <sound/control.h>
+#include <sound/soc.h>
+#include <sound/soc-acpi.h>
+#include <sound/soc-dapm.h>
+#include <sound/soc_sdw_utils.h>
+
+static int maxim_part_id;
+#define SOC_SDW_PART_ID_MAX98363 0x8363
+#define SOC_SDW_PART_ID_MAX98373 0x8373
+
+static const struct snd_soc_dapm_route max_98373_dapm_routes[] = {
+	{ "Left Spk", NULL, "Left BE_OUT" },
+	{ "Right Spk", NULL, "Right BE_OUT" },
+};
+
+int asoc_sdw_maxim_spk_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
+{
+	struct snd_soc_card *card = rtd->card;
+	int ret;
+
+	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
+					  "%s spk:mx%04x",
+					  card->components, maxim_part_id);
+	if (!card->components)
+		return -ENOMEM;
+
+	dev_dbg(card->dev, "soundwire maxim card components assigned : %s\n",
+		card->components);
+
+	ret = snd_soc_dapm_add_routes(&card->dapm, max_98373_dapm_routes, 2);
+	if (ret)
+		dev_err(rtd->dev, "failed to add first SPK map: %d\n", ret);
+
+	return ret;
+}
+EXPORT_SYMBOL_NS(asoc_sdw_maxim_spk_rtd_init, SND_SOC_SDW_UTILS);
+
+static int asoc_sdw_mx8373_enable_spk_pin(struct snd_pcm_substream *substream, bool enable)
+{
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+	struct snd_soc_dai *codec_dai;
+	struct snd_soc_dai *cpu_dai;
+	int ret;
+	int j;
+
+	/* set spk pin by playback only */
+	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+		return 0;
+
+	cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
+	for_each_rtd_codec_dais(rtd, j, codec_dai) {
+		struct snd_soc_dapm_context *dapm =
+				snd_soc_component_get_dapm(cpu_dai->component);
+		char pin_name[16];
+
+		snprintf(pin_name, ARRAY_SIZE(pin_name), "%s Spk",
+			 codec_dai->component->name_prefix);
+
+		if (enable)
+			ret = snd_soc_dapm_enable_pin(dapm, pin_name);
+		else
+			ret = snd_soc_dapm_disable_pin(dapm, pin_name);
+
+		if (!ret)
+			snd_soc_dapm_sync(dapm);
+	}
+
+	return 0;
+}
+
+static int asoc_sdw_mx8373_prepare(struct snd_pcm_substream *substream)
+{
+	int ret;
+
+	/* according to soc_pcm_prepare dai link prepare is called first */
+	ret = asoc_sdw_prepare(substream);
+	if (ret < 0)
+		return ret;
+
+	return asoc_sdw_mx8373_enable_spk_pin(substream, true);
+}
+
+static int asoc_sdw_mx8373_hw_free(struct snd_pcm_substream *substream)
+{
+	int ret;
+
+	/* according to soc_pcm_hw_free dai link free is called first */
+	ret = asoc_sdw_hw_free(substream);
+	if (ret < 0)
+		return ret;
+
+	return asoc_sdw_mx8373_enable_spk_pin(substream, false);
+}
+
+static const struct snd_soc_ops max_98373_sdw_ops = {
+	.startup = asoc_sdw_startup,
+	.prepare = asoc_sdw_mx8373_prepare,
+	.trigger = asoc_sdw_trigger,
+	.hw_params = asoc_sdw_hw_params,
+	.hw_free = asoc_sdw_mx8373_hw_free,
+	.shutdown = asoc_sdw_shutdown,
+};
+
+static int asoc_sdw_mx8373_sdw_late_probe(struct snd_soc_card *card)
+{
+	struct snd_soc_dapm_context *dapm = &card->dapm;
+
+	/* Disable Left and Right Spk pin after boot */
+	snd_soc_dapm_disable_pin(dapm, "Left Spk");
+	snd_soc_dapm_disable_pin(dapm, "Right Spk");
+	return snd_soc_dapm_sync(dapm);
+}
+
+int asoc_sdw_maxim_init(struct snd_soc_card *card,
+			struct snd_soc_dai_link *dai_links,
+			struct asoc_sdw_codec_info *info,
+			bool playback)
+{
+	info->amp_num++;
+
+	maxim_part_id = info->part_id;
+	switch (maxim_part_id) {
+	case SOC_SDW_PART_ID_MAX98363:
+		/* Default ops are set in function init_dai_link.
+		 * called as part of function create_sdw_dailink
+		 */
+		break;
+	case SOC_SDW_PART_ID_MAX98373:
+		info->codec_card_late_probe = asoc_sdw_mx8373_sdw_late_probe;
+		dai_links->ops = &max_98373_sdw_ops;
+		break;
+	default:
+		dev_err(card->dev, "Invalid maxim_part_id %#x\n", maxim_part_id);
+		return -EINVAL;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_NS(asoc_sdw_maxim_init, SND_SOC_SDW_UTILS);