Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 172 insertions, 0 deletions

diff --git a/sound/soc/qcom/sm8250.c b/sound/soc/qcom/sm8250.c
new file mode 100644
index 0000000000..9626a9ef78
--- /dev/null
+++ b/sound/soc/qcom/sm8250.c
@@ -0,0 +1,172 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020, 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"
+#include "sdw.h"
+
+#define DRIVER_NAME		"sm8250"
+#define MI2S_BCLK_RATE		1536000
+
+struct sm8250_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 sm8250_snd_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct sm8250_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
+
+	return qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup);
+}
+
+static int sm8250_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+				     struct snd_pcm_hw_params *params)
+{
+	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 = channels->max = 2;
+
+	return 0;
+}
+
+static int sm8250_snd_startup(struct snd_pcm_substream *substream)
+{
+	unsigned int fmt = SND_SOC_DAIFMT_BP_FP;
+	unsigned int codec_dai_fmt = SND_SOC_DAIFMT_BC_FC;
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+
+	switch (cpu_dai->id) {
+	case TERTIARY_MI2S_RX:
+		codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_I2S;
+		snd_soc_dai_set_sysclk(cpu_dai,
+			Q6AFE_LPASS_CLK_ID_TER_MI2S_IBIT,
+			MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
+		snd_soc_dai_set_fmt(cpu_dai, fmt);
+		snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt);
+		break;
+	default:
+		break;
+	}
+	return 0;
+}
+
+static int sm8250_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 sm8250_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 sm8250_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 sm8250_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 sm8250_snd_hw_free(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct sm8250_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 sm8250_be_ops = {
+	.startup = sm8250_snd_startup,
+	.hw_params = sm8250_snd_hw_params,
+	.hw_free = sm8250_snd_hw_free,
+	.prepare = sm8250_snd_prepare,
+};
+
+static void sm8250_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 = sm8250_snd_init;
+			link->be_hw_params_fixup = sm8250_be_hw_params_fixup;
+			link->ops = &sm8250_be_ops;
+		}
+	}
+}
+
+static int sm8250_platform_probe(struct platform_device *pdev)
+{
+	struct snd_soc_card *card;
+	struct sm8250_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;
+	sm8250_add_be_ops(card);
+	return devm_snd_soc_register_card(dev, card);
+}
+
+static const struct of_device_id snd_sm8250_dt_match[] = {
+	{.compatible = "qcom,sm8250-sndcard"},
+	{.compatible = "qcom,qrb5165-rb5-sndcard"},
+	{}
+};
+
+MODULE_DEVICE_TABLE(of, snd_sm8250_dt_match);
+
+static struct platform_driver snd_sm8250_driver = {
+	.probe  = sm8250_platform_probe,
+	.driver = {
+		.name = "snd-sm8250",
+		.of_match_table = snd_sm8250_dt_match,
+	},
+};
+module_platform_driver(snd_sm8250_driver);
+MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
+MODULE_DESCRIPTION("SM8250 ASoC Machine Driver");
+MODULE_LICENSE("GPL v2");