[v1,2/2] ASoC: qcom: qcm6490: Add machine driver for qcm6490

diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig
index 762491d6f2f2..0bc536766872 100644
--- a/sound/soc/qcom/Kconfig
+++ b/sound/soc/qcom/Kconfig
@@ -151,6 +151,19 @@  config SND_SOC_MSM8996
 	  APQ8096 SoC-based systems.
 	  Say Y if you want to use audio device on this SoCs
 
+config SND_SOC_QCM6490
+	tristate "SoC Machine driver for QCM6490 boards"
+	depends on QCOM_APR && SOUNDWIRE
+	depends on COMMON_CLK
+	select SND_SOC_QDSP6
+	select SND_SOC_QCOM_COMMON
+	select SND_SOC_QCOM_SDW
+	help
+	  Add support for audio on Qualcomm Technologies Inc.
+	  QCM6490 SoC-based systems.
+	  To compile this driver say Y or M if you want to
+	  use audio device on this SoCs.
+
 config SND_SOC_SDM845
 	tristate "SoC Machine driver for SDM845 boards"
 	depends on QCOM_APR && I2C && SOUNDWIRE
diff --git a/sound/soc/qcom/Makefile b/sound/soc/qcom/Makefile
index 34f3fcb8ee9a..feb2c164be69 100644
--- a/sound/soc/qcom/Makefile
+++ b/sound/soc/qcom/Makefile
@@ -22,6 +22,7 @@  obj-$(CONFIG_SND_SOC_LPASS_SC7280) += snd-soc-lpass-sc7280.o
 snd-soc-storm-objs := storm.o
 snd-soc-apq8016-sbc-objs := apq8016_sbc.o
 snd-soc-apq8096-objs := apq8096.o
+snd-soc-qcm6490-objs := qcm6490.o
 snd-soc-sc7180-objs := sc7180.o
 snd-soc-sc7280-objs := sc7280.o
 snd-soc-sdm845-objs := sdm845.o
@@ -34,6 +35,7 @@  snd-soc-x1e80100-objs := x1e80100.o
 obj-$(CONFIG_SND_SOC_STORM) += snd-soc-storm.o
 obj-$(CONFIG_SND_SOC_APQ8016_SBC) += snd-soc-apq8016-sbc.o
 obj-$(CONFIG_SND_SOC_MSM8996) += snd-soc-apq8096.o
+obj-$(CONFIG_SND_SOC_QCM6490) += snd-soc-qcm6490.o
 obj-$(CONFIG_SND_SOC_SC7180) += snd-soc-sc7180.o
 obj-$(CONFIG_SND_SOC_SC7280) += snd-soc-sc7280.o
 obj-$(CONFIG_SND_SOC_SC8280XP) += snd-soc-sc8280xp.o
diff --git a/sound/soc/qcom/qcm6490.c b/sound/soc/qcom/qcm6490.c
new file mode 100644
index 000000000000..5b0dc95963f5
--- /dev/null
+++ b/sound/soc/qcom/qcm6490.c
@@ -0,0 +1,173 @@ 
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
+
+#include <dt-bindings/sound/qcom,q6afe.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/of_device.h>
+#include <sound/core.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/pcm.h>
+#include <linux/soundwire/sdw.h>
+#include <sound/jack.h>
+#include <sound/pcm_params.h>
+#include "lpass.h"
+#include "qdsp6/q6afe.h"
+#include "common.h"
+#include "sdw.h"
+
+struct qcm6490_snd_data {
+	bool stream_prepared[AFE_PORT_MAX];
+	struct snd_soc_card *card;
+	struct sdw_stream_runtime *sruntime[AFE_PORT_MAX];
+	struct snd_soc_jack jack;
+	bool jack_setup;
+};
+
+static int qcm6490_snd_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct qcm6490_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
+
+	switch (cpu_dai->id) {
+	case TX_CODEC_DMA_TX_3:
+	case LPASS_CDC_DMA_TX3:
+	case RX_CODEC_DMA_RX_0:
+		return qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup);
+	case VA_CODEC_DMA_TX_0:
+	case WSA_CODEC_DMA_RX_0:
+		return 0;
+	default:
+		dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
+	}
+
+	return -EINVAL;
+}
+
+static int qcm6490_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+				      struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
+	struct snd_interval *rate = hw_param_interval(params,
+					SNDRV_PCM_HW_PARAM_RATE);
+	struct snd_interval *channels = hw_param_interval(params,
+					SNDRV_PCM_HW_PARAM_CHANNELS);
+
+	rate->min = 48000;
+	rate->max = 48000;
+	channels->min = 2;
+	channels->max = 2;
+	switch (cpu_dai->id) {
+	case TX_CODEC_DMA_TX_0:
+	case TX_CODEC_DMA_TX_1:
+	case TX_CODEC_DMA_TX_2:
+	case TX_CODEC_DMA_TX_3:
+		channels->min = 1;
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int qcm6490_snd_hw_params(struct snd_pcm_substream *substream,
+				 struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
+	struct qcm6490_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card);
+
+	return qcom_snd_sdw_hw_params(substream, params, &pdata->sruntime[cpu_dai->id]);
+}
+
+static int qcm6490_snd_prepare(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
+	struct qcm6490_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
+	struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
+
+	return qcom_snd_sdw_prepare(substream, sruntime,
+				    &data->stream_prepared[cpu_dai->id]);
+}
+
+static int qcm6490_snd_hw_free(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct qcm6490_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
+	struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
+
+	return qcom_snd_sdw_hw_free(substream, sruntime,
+				    &data->stream_prepared[cpu_dai->id]);
+}
+
+static const struct snd_soc_ops qcm6490_be_ops = {
+	.hw_params = qcm6490_snd_hw_params,
+	.hw_free = qcm6490_snd_hw_free,
+	.prepare = qcm6490_snd_prepare,
+};
+
+static void qcm6490_add_be_ops(struct snd_soc_card *card)
+{
+	struct snd_soc_dai_link *link;
+	int i;
+
+	for_each_card_prelinks(card, i, link) {
+		if (link->no_pcm == 1) {
+			link->init = qcm6490_snd_init;
+			link->be_hw_params_fixup = qcm6490_be_hw_params_fixup;
+			link->ops = &qcm6490_be_ops;
+		}
+	}
+}
+
+static int qcm6490_platform_probe(struct platform_device *pdev)
+{
+	struct snd_soc_card *card;
+	struct qcm6490_snd_data *data;
+	struct device *dev = &pdev->dev;
+	int ret;
+
+	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
+	if (!card)
+		return -ENOMEM;
+	card->owner = THIS_MODULE;
+	/* Allocate the private data */
+	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	card->dev = dev;
+	dev_set_drvdata(dev, card);
+	snd_soc_card_set_drvdata(card, data);
+	ret = qcom_snd_parse_of(card);
+	if (ret)
+		return ret;
+
+	card->driver_name = of_device_get_match_data(dev);
+	qcm6490_add_be_ops(card);
+	return devm_snd_soc_register_card(dev, card);
+}
+
+static const struct of_device_id snd_qcm6490_dt_match[] = {
+	{.compatible = "qcom,qcm6490-sndcard", "qcm6490"},
+	{.compatible = "qcom,qcs6490-sndcard", "qcs6490"},
+	{}
+};
+
+MODULE_DEVICE_TABLE(of, snd_qcm6490_dt_match);
+
+static struct platform_driver snd_qcm6490_driver = {
+	.probe  = qcm6490_platform_probe,
+	.driver = {
+		.name = "snd-qcm6490",
+		.of_match_table = snd_qcm6490_dt_match,
+	},
+};
+module_platform_driver(snd_qcm6490_driver);
+MODULE_DESCRIPTION("qcm6490 ASoC Machine Driver");
+MODULE_LICENSE("GPL");