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Date: Thu, 18 Aug 2022 14:58:17 +0100
From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To: broonie@...nel.org
Cc: robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
perex@...ex.cz, tiwai@...e.com,
pierre-louis.bossart@...ux.intel.com,
linux-arm-msm@...r.kernel.org, alsa-devel@...a-project.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH 3/3] ASoC: qcom: add machine driver for sc8280xp
Add machine driver for sc8280xp SoC.
This intial supports only includes WSA883x Speakers and WCD938x based headset.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
sound/soc/qcom/Kconfig | 11 +++
sound/soc/qcom/Makefile | 2 +
sound/soc/qcom/sc8280xp.c | 157 ++++++++++++++++++++++++++++++++++++++
3 files changed, 170 insertions(+)
create mode 100644 sound/soc/qcom/sc8280xp.c
diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig
index 750653404ba3..d0e59e07b1fc 100644
--- a/sound/soc/qcom/Kconfig
+++ b/sound/soc/qcom/Kconfig
@@ -173,6 +173,17 @@ config SND_SOC_SM8250
SM8250 SoC-based systems.
Say Y if you want to use audio device on this SoCs.
+config SND_SOC_SC8280XP
+ tristate "SoC Machine driver for SC8280XP boards"
+ depends on QCOM_APR && SOUNDWIRE
+ depends on COMMON_CLK
+ select SND_SOC_QDSP6
+ select SND_SOC_QCOM_COMMON
+ help
+ To add support for audio on Qualcomm Technologies Inc.
+ SC8280XP SoC-based systems.
+ Say Y if you want to use audio device on this SoCs.
+
config SND_SOC_SC7180
tristate "SoC Machine driver for SC7180 boards"
depends on I2C && GPIOLIB
diff --git a/sound/soc/qcom/Makefile b/sound/soc/qcom/Makefile
index 8b7b876899a8..8b97172cf990 100644
--- a/sound/soc/qcom/Makefile
+++ b/sound/soc/qcom/Makefile
@@ -26,6 +26,7 @@ snd-soc-sc7180-objs := sc7180.o
snd-soc-sc7280-objs := sc7280.o
snd-soc-sdm845-objs := sdm845.o
snd-soc-sm8250-objs := sm8250.o
+snd-soc-sc8280xp-objs := sc8280xp.o
snd-soc-qcom-common-objs := common.o
obj-$(CONFIG_SND_SOC_STORM) += snd-soc-storm.o
@@ -33,6 +34,7 @@ obj-$(CONFIG_SND_SOC_APQ8016_SBC) += snd-soc-apq8016-sbc.o
obj-$(CONFIG_SND_SOC_MSM8996) += snd-soc-apq8096.o
obj-$(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
obj-$(CONFIG_SND_SOC_SDM845) += snd-soc-sdm845.o
obj-$(CONFIG_SND_SOC_SM8250) += snd-soc-sm8250.o
obj-$(CONFIG_SND_SOC_QCOM_COMMON) += snd-soc-qcom-common.o
diff --git a/sound/soc/qcom/sc8280xp.c b/sound/soc/qcom/sc8280xp.c
new file mode 100644
index 000000000000..ade44ad7c585
--- /dev/null
+++ b/sound/soc/qcom/sc8280xp.c
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2022, Linaro Limited
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/of_device.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/pcm.h>
+#include <linux/soundwire/sdw.h>
+#include <sound/jack.h>
+#include <linux/input-event-codes.h>
+#include "qdsp6/q6afe.h"
+#include "common.h"
+
+#define DRIVER_NAME "sc8280xp"
+
+struct sc8280xp_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 sc8280xp_snd_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
+
+ return qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup);
+}
+
+static int sc8280xp_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_dai *cpu_dai = asoc_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 = 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 sc8280xp_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 = asoc_rtd_to_cpu(rtd, 0);
+ struct sc8280xp_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 sc8280xp_snd_prepare(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+ struct sc8280xp_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 sc8280xp_snd_hw_free(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct sc8280xp_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
+ struct snd_soc_dai *cpu_dai = asoc_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 sc8280xp_be_ops = {
+ .hw_params = sc8280xp_snd_hw_params,
+ .hw_free = sc8280xp_snd_hw_free,
+ .prepare = sc8280xp_snd_prepare,
+};
+
+static void sc8280xp_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 = sc8280xp_snd_init;
+ link->be_hw_params_fixup = sc8280xp_be_hw_params_fixup;
+ link->ops = &sc8280xp_be_ops;
+ }
+ }
+}
+
+static int sc8280xp_platform_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card;
+ struct sc8280xp_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 = DRIVER_NAME;
+ sc8280xp_add_be_ops(card);
+ return devm_snd_soc_register_card(dev, card);
+}
+
+static const struct of_device_id snd_sc8280xp_dt_match[] = {
+ {.compatible = "qcom,sc8280xp-sndcard",},
+ {}
+};
+
+MODULE_DEVICE_TABLE(of, snd_sc8280xp_dt_match);
+
+static struct platform_driver snd_sc8280xp_driver = {
+ .probe = sc8280xp_platform_probe,
+ .driver = {
+ .name = "snd-sc8280xp",
+ .of_match_table = snd_sc8280xp_dt_match,
+ },
+};
+module_platform_driver(snd_sc8280xp_driver);
+MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@...aro.org");
+MODULE_DESCRIPTION("SC8280XP ASoC Machine Driver");
+MODULE_LICENSE("GPL v2");
--
2.21.0
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