ASoC: sdw_utils: Add cs42l45 support functions

Add the helper functions into the machine driver for the cs42l45,
this will register a jack for jack detection and add things into
to the components string if they are needed.

Signed-off-by: Charles Keepax <[email protected]>

Author: charleskeepax

include/sound/soc_sdw_utils.h

@@ -257,6 +257,8 @@ int asoc_sdw_cs42l42_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_da
 int asoc_sdw_cs42l43_hs_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai);
 int asoc_sdw_cs42l43_spk_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai);
 int asoc_sdw_cs42l43_dmic_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai);
+int asoc_sdw_cs42l45_hs_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai);
+int asoc_sdw_cs42l45_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 */

sound/soc/sdw_utils/Makefile

@@ -5,6 +5,7 @@ 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_rt_mf_sdca.o		\
 		       soc_sdw_bridge_cs35l56.o 			\
 		       soc_sdw_cs42l42.o soc_sdw_cs42l43.o 		\
+		       soc_sdw_cs42l45.o				\
 		       soc_sdw_cs_amp.o					\
 		       soc_sdw_maxim.o \
 		       soc_sdw_ti_amp.o

sound/soc/sdw_utils/soc_sdw_cs42l45.c

@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Based on sof_sdw_rt5682.c
+// This file incorporates work covered by the following copyright notice:
+// Copyright (c) 2023 Intel Corporation
+// Copyright (c) 2024 Advanced Micro Devices, Inc.
+
+/*
+ *  soc_sdw_cs42l45 - Helpers to handle CS42L45 from generic machine driver
+ */
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <sound/jack.h>
+#include <sound/soc.h>
+#include <sound/soc-card.h>
+#include <sound/soc-component.h>
+#include <sound/soc-dai.h>
+#include <sound/soc_sdw_utils.h>
+
+static struct snd_soc_jack_pin soc_jack_pins[] = {
+	{
+		.pin    = "cs42l45 OT 43",
+		.mask   = SND_JACK_HEADPHONE,
+	},
+	{
+		.pin    = "cs42l45 OT 45",
+		.mask   = SND_JACK_HEADPHONE,
+	},
+	{
+		.pin    = "cs42l45 IT 31",
+		.mask   = SND_JACK_MICROPHONE,
+	},
+	{
+		.pin    = "cs42l45 IT 33",
+		.mask   = SND_JACK_MICROPHONE,
+	},
+};
+
+int asoc_sdw_cs42l45_hs_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
+{
+	struct snd_soc_card *card = rtd->card;
+	struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component;
+	struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
+	struct snd_soc_jack *jack = &ctx->sdw_headset;
+	int ret;
+
+	card->components = devm_kasprintf(card->dev, GFP_KERNEL, "%s hs:cs42l45",
+					  card->components);
+	if (!card->components)
+		return -ENOMEM;
+
+	ret = snd_soc_card_jack_new_pins(card, "Jack", SND_JACK_MECHANICAL |
+					 SND_JACK_HEADSET | SND_JACK_LINEOUT, jack,
+					 soc_jack_pins, ARRAY_SIZE(soc_jack_pins));
+	if (ret) {
+		dev_err(card->dev, "Failed to create jack: %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_component_set_jack(component, jack, NULL);
+	if (ret) {
+		dev_err(card->dev, "Failed to register jack: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_NS(asoc_sdw_cs42l45_hs_rtd_init, "SND_SOC_SDW_UTILS");
+
+int asoc_sdw_cs42l45_dmic_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
+{
+	struct snd_soc_card *card = rtd->card;
+
+	card->components = devm_kasprintf(card->dev, GFP_KERNEL, "%s mic:cs42l45-dmic",
+					  card->components);
+	if (!card->components)
+		return -ENOMEM;
+
+	return 0;
+}
+EXPORT_SYMBOL_NS(asoc_sdw_cs42l45_dmic_rtd_init, "SND_SOC_SDW_UTILS");