Merge series "ASoC: qcom: add support for QRB5165 RB5 machine" from Srinivas... (155eacf8) · Commits · 戴 / test

Documentation/devicetree/bindings/sound/qcom,sm8250.yaml

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		# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
		%YAML 1.2
		---
		$id: http://devicetree.org/schemas/sound/qcom,sm8250.yaml#
		$schema: http://devicetree.org/meta-schemas/core.yaml#

		title: Qualcomm Technologies Inc. SM8250 ASoC sound card driver

		maintainers:
		- Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

		description:
		This bindings describes SC8250 SoC based sound cards
		which uses LPASS internal codec for audio.

		properties:
		compatible:
		oneOf:
		- const: qcom,qrb5165-rb5
		- items:
		- const: qcom,sm8250
		- const: qcom,qrb5165-rb5

		audio-routing:
		$ref: /schemas/types.yaml#/definitions/non-unique-string-array
		description:
		A list of the connections between audio components. Each entry is a
		pair of strings, the first being the connection's sink, the second
		being the connection's source. Valid names could be power supplies,
		MicBias of codec and the jacks on the board.

		model:
		$ref: /schemas/types.yaml#/definitions/string
		description: User visible long sound card name

		patternProperties:
		".*-dai-link$":
		description:
		Each subnode represents a dai link. Subnodes of each dai links would be
		cpu/codec dais.

		type: object

		properties:
		link-name:
		description: Indicates dai-link name and PCM stream name.
		$ref: /schemas/types.yaml#/definitions/string
		maxItems: 1

		cpu:
		description: Holds subnode which indicates cpu dai.
		type: object
		properties:
		sound-dai: true

		platform:
		description: Holds subnode which indicates platform dai.
		type: object
		properties:
		sound-dai: true

		codec:
		description: Holds subnode which indicates codec dai.
		type: object
		properties:
		sound-dai: true

		required:
		- link-name
		- cpu

		additionalProperties: false

		required:
		- compatible
		- model

		additionalProperties: false

		examples:

		- \|
		#include <dt-bindings/sound/qcom,q6afe.h>
		#include <dt-bindings/sound/qcom,q6asm.h>
		sound {
		compatible = "qcom,qrb5165-rb5";
		model = "Qualcomm-qrb5165-RB5-WSA8815-Speakers-DMIC0";
		audio-routing = "SpkrLeft IN", "WSA_SPK1 OUT",
		"SpkrRight IN", "WSA_SPK2 OUT",
		"VA DMIC0", "vdd-micb",
		"VA DMIC1", "vdd-micb",
		"MM_DL1", "MultiMedia1 Playback",
		"MM_DL2", "MultiMedia2 Playback",
		"MultiMedia3 Capture", "MM_UL3";

		mm1-dai-link {
		link-name = "MultiMedia0";
		cpu {
		sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>;
		};
		};

		mm2-dai-link {
		link-name = "MultiMedia2";
		cpu {
		sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA2>;
		};
		};

		mm3-dai-link {
		link-name = "MultiMedia3";
		cpu {
		sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA3>;
		};
		};

		hdmi-dai-link {
		link-name = "HDMI Playback";
		cpu {
		sound-dai = <&q6afedai TERTIARY_MI2S_RX>;
		};

		platform {
		sound-dai = <&q6routing>;
		};

		codec {
		sound-dai = <&lt9611_codec 0>;
		};
		};

		wsa-dai-link {
		link-name = "WSA Playback";
		cpu {
		sound-dai = <&q6afedai WSA_CODEC_DMA_RX_0>;
		};

		platform {
		sound-dai = <&q6routing>;
		};

		codec {
		sound-dai = <&left_spkr>, <&right_spkr>, <&swr0 0>, <&wsamacro>;
		};
		};

		va-dai-link {
		link-name = "VA Capture";
		cpu {
		sound-dai = <&q6afedai VA_CODEC_DMA_TX_0>;
		};

		platform {
		sound-dai = <&q6routing>;
		};

		codec {
		sound-dai = <&vamacro 0>;
		};
		};
		};

sound/soc/qcom/Kconfig

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		@@ -127,4 +127,15 @@ config SND_SOC_SDM845
		SDM845 SoC-based systems.
		Say Y if you want to use audio device on this SoCs.

		config SND_SOC_SM8250
		tristate "SoC Machine driver for SM8250 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.
		SM8250 SoC-based systems.
		Say Y if you want to use audio device on this SoCs.

		endif #SND_SOC_QCOM

sound/soc/qcom/Makefile

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		@@ -19,12 +19,14 @@ snd-soc-storm-objs := storm.o
		snd-soc-apq8016-sbc-objs := apq8016_sbc.o
		snd-soc-apq8096-objs := apq8096.o
		snd-soc-sdm845-objs := sdm845.o
		snd-soc-sm8250-objs := sm8250.o
		snd-soc-qcom-common-objs := common.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_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

		#DSP lib

sound/soc/qcom/sm8250.c

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		// 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 "qdsp6/q6afe.h"
		#include "common.h"

		#define DRIVER_NAME "sm8250"
		#define MI2S_BCLK_RATE 1536000
		#define MAX_SDW_STREAMS 16

		struct sm8250_snd_data {
		bool stream_prepared[MAX_SDW_STREAMS];
		struct snd_soc_card *card;
		struct sdw_stream_runtime *sruntime[MAX_SDW_STREAMS];
		};

		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 codec_dai_fmt = SND_SOC_DAIFMT_CBS_CFS;
		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_dai_set_sysclk(cpu_dai,
		Q6AFE_LPASS_CLK_ID_TER_MI2S_IBIT,
		MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
		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 *codec_dai;
		struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
		struct sm8250_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card);
		struct sdw_stream_runtime *sruntime;
		int i;

		switch (cpu_dai->id) {
		case WSA_CODEC_DMA_RX_0:
		for_each_rtd_codec_dais(rtd, i, codec_dai) {
		sruntime = snd_soc_dai_get_sdw_stream(codec_dai,
		substream->stream);
		if (sruntime != ERR_PTR(-ENOTSUPP))
		pdata->sruntime[cpu_dai->id] = sruntime;
		}
		break;
		}

		return 0;

		}

		static int sm8250_snd_wsa_dma_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];
		int ret;

		if (!sruntime)
		return 0;

		if (data->stream_prepared[cpu_dai->id]) {
		sdw_disable_stream(sruntime);
		sdw_deprepare_stream(sruntime);
		data->stream_prepared[cpu_dai->id] = false;
		}

		ret = sdw_prepare_stream(sruntime);
		if (ret)
		return ret;

		/**
		* NOTE: there is a strict hw requirement about the ordering of port
		* enables and actual WSA881x PA enable. PA enable should only happen
		* after soundwire ports are enabled if not DC on the line is
		* accumulated resulting in Click/Pop Noise
		* PA enable/mute are handled as part of codec DAPM and digital mute.
		*/

		ret = sdw_enable_stream(sruntime);
		if (ret) {
		sdw_deprepare_stream(sruntime);
		return ret;
		}
		data->stream_prepared[cpu_dai->id] = true;

		return ret;
		}

		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);

		switch (cpu_dai->id) {
		case WSA_CODEC_DMA_RX_0:
		case WSA_CODEC_DMA_RX_1:
		return sm8250_snd_wsa_dma_prepare(substream);
		default:
		break;
		}

		return 0;
		}

		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];

		switch (cpu_dai->id) {
		case WSA_CODEC_DMA_RX_0:
		case WSA_CODEC_DMA_RX_1:
		if (sruntime && data->stream_prepared[cpu_dai->id]) {
		sdw_disable_stream(sruntime);
		sdw_deprepare_stream(sruntime);
		data->stream_prepared[cpu_dai->id] = false;
		}
		break;
		default:
		break;
		}

		return 0;
		}

		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->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;

		/* 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,sdm8250"},
		{.compatible = "qcom,qrb5165-rb5"},
		{}
		};

		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");

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