From patchwork Mon Jun 18 11:16:31 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rohit Kumar X-Patchwork-Id: 10470941 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id D36166032A for ; Mon, 18 Jun 2018 11:19:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C274F28763 for ; Mon, 18 Jun 2018 11:19:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B74DC287BF; Mon, 18 Jun 2018 11:19:06 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 16C0828859 for ; Mon, 18 Jun 2018 11:19:05 +0000 (UTC) Received: from alsa0.perex.cz (localhost [127.0.0.1]) by alsa0.perex.cz (Postfix) with ESMTP id 5F1EC2675CA; Mon, 18 Jun 2018 13:19:03 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id 88A6D2675D5; Mon, 18 Jun 2018 13:19:01 +0200 (CEST) Received: from smtp.codeaurora.org (smtp.codeaurora.org [198.145.29.96]) by alsa0.perex.cz (Postfix) with ESMTP id E84FA2673C7 for ; Mon, 18 Jun 2018 13:18:58 +0200 (CEST) Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 9EFCA6071B; Mon, 18 Jun 2018 11:18:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1529320737; bh=8yR1nNeOYw0hMs96FgYgKDNKrK4rqjCR+jEyjgNJBLw=; h=From:To:Cc:Subject:Date:From; b=h8cueUOZfslJV5i+gDIbCcqAS9M1K6WmW+Uh1bMZu8NfbA/OLMAx9+Lh9qBrJzNx3 EuFOKiaCJjiQsLxpJu3m7OI0SwXbs3w+i92fbxkp3i+SsbzH8feuZqr9YR03EMgLfc xWKeF8E32eEosBHIX6W+36nX0kJdvv90uJK801DY= Received: from rohkumar-linux.qualcomm.com (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: rohitkr@codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 1E01A602FC; Mon, 18 Jun 2018 11:18:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1529320736; bh=8yR1nNeOYw0hMs96FgYgKDNKrK4rqjCR+jEyjgNJBLw=; h=From:To:Cc:Subject:Date:From; b=WpvL+Ctdbmh4hbCgICr7p/9ckua+Mvjb19Gga1+mc2w9MCuUl/rmHick0uTwfoqSB 7z58RRPHF8FaURj6j2KThmzAWSaUpX62t6syihLLH2EAO72nBuDqio6gVAZpMDSlsQ H+JgRco6jMNlloqGnuxiuG5KkWLDE/BEVyHE+4W8= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 1E01A602FC Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=rohitkr@codeaurora.org From: Rohit kumar To: lgirdwood@gmail.com, broonie@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, plai@codeaurora.org, bgoswami@codeaurora.org, perex@perex.cz, srinivas.kandagatla@linaro.org, tiwai@suse.com, alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Date: Mon, 18 Jun 2018 16:46:31 +0530 Message-Id: <1529320591-22434-1-git-send-email-rohitkr@codeaurora.org> X-Mailer: git-send-email 1.9.1 Cc: Rohit kumar Subject: [alsa-devel] [PATCH] ASoC: qcom: add sdm845 sound card support X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds sdm845 audio machine driver support. Signed-off-by: Rohit kumar --- .../devicetree/bindings/sound/qcom,sdm845.txt | 87 ++++ sound/soc/qcom/Kconfig | 9 + sound/soc/qcom/Makefile | 2 + sound/soc/qcom/sdm845.c | 539 +++++++++++++++++++++ 4 files changed, 637 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/qcom,sdm845.txt create mode 100644 sound/soc/qcom/sdm845.c diff --git a/Documentation/devicetree/bindings/sound/qcom,sdm845.txt b/Documentation/devicetree/bindings/sound/qcom,sdm845.txt new file mode 100644 index 0000000..fc0e98c --- /dev/null +++ b/Documentation/devicetree/bindings/sound/qcom,sdm845.txt @@ -0,0 +1,87 @@ +* Qualcomm Technologies Inc. SDM845 ASoC sound card driver + +This binding describes the SDM845 sound card, which uses qdsp for audio. + +- compatible: + Usage: required + Value type: + Definition: must be "qcom,sdm845-sndcard" + +- qcom,audio-routing: + Usage: Optional + Value type: + Definition: 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. + +- cdc-vdd-supply: + Usage: Optional + Value type: + Definition: phandle of regulator supply required for codec vdd. + += dailinks +Each subnode of sndcard represents either a dailink, and subnodes of each +dailinks would be cpu/codec/platform dais. + +- link-name: + Usage: required + Value type: + Definition: User friendly name for dai link + += CPU, PLATFORM, CODEC dais subnodes +- cpu: + Usage: required + Value type: + Definition: cpu dai sub-node + +- codec: + Usage: required + Value type: + Definition: codec dai sub-node + +- platform: + Usage: opional + Value type: + Definition: platform dai sub-node + +- sound-dai: + Usage: required + Value type: + Definition: dai phandle/s and port of CPU/CODEC/PLATFORM node. + +Example: + +audio { + compatible = "qcom,sdm845-sndcard"; + qcom,model = "sdm845-snd-card"; + pinctrl-names = "pri_active", "pri_sleep"; + pinctrl-0 = <&pri_mi2s_active &pri_mi2s_ws_active>; + pinctrl-1 = <&pri_mi2s_sleep &pri_mi2s_ws_sleep>; + + qcom,audio-routing = "PRI_MI2S_RX Audio Mixer", "Pri-mi2s-gpio"; + + cdc-vdd-supply = <&pm8998_l14>; + + fe@1 { + link-name = "MultiMedia1"; + cpu { + sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>; + }; + platform { + sound-dai = <&q6asmdai>; + }; + }; + + be@1 { + link-name = "PRI MI2S Playback"; + cpu { + sound-dai = <&q6afedai PRIMARY_MI2S_RX>; + }; + + platform { + sound-dai = <&q6routing>; + }; + }; +}; diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig index 87838fa..09de50d 100644 --- a/sound/soc/qcom/Kconfig +++ b/sound/soc/qcom/Kconfig @@ -90,3 +90,12 @@ config SND_SOC_MSM8996 Support for Qualcomm Technologies LPASS audio block in APQ8096 SoC-based systems. Say Y 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 + select SND_SOC_QDSP6 + help + To add support for audio on Qualcomm Technologies Inc. + SDM845 SoC-based systems. + Say Y if you want to use audio device on this SoCs diff --git a/sound/soc/qcom/Makefile b/sound/soc/qcom/Makefile index 206945b..ac9609e 100644 --- a/sound/soc/qcom/Makefile +++ b/sound/soc/qcom/Makefile @@ -14,10 +14,12 @@ obj-$(CONFIG_SND_SOC_LPASS_APQ8016) += snd-soc-lpass-apq8016.o snd-soc-storm-objs := storm.o snd-soc-apq8016-sbc-objs := apq8016_sbc.o snd-soc-apq8096-objs := apq8096.o +snd-soc-sdm845-objs := sdm845.o obj-$(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-$(CONFIG_SND_SOC_SDM845) += snd-soc-sdm845.o #DSP lib obj-$(CONFIG_SND_SOC_QDSP6) += qdsp6/ diff --git a/sound/soc/qcom/sdm845.c b/sound/soc/qcom/sdm845.c new file mode 100644 index 0000000..70d2611 --- /dev/null +++ b/sound/soc/qcom/sdm845.c @@ -0,0 +1,539 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2018, The Linux Foundation. All rights reserved. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "qdsp6/q6afe.h" + +#define DEFAULT_SAMPLE_RATE_48K 48000 +#define DEFAULT_MCLK_RATE 24576000 +#define DEFAULT_BCLK_RATE 1536000 + +struct sdm845_snd_data { + struct snd_soc_card *card; + struct regulator *vdd_supply; + struct snd_soc_dai_link dai_link[]; +}; + +static struct mutex pri_mi2s_res_lock; +static struct mutex quat_tdm_res_lock; +static atomic_t pri_mi2s_clk_count; +static atomic_t quat_tdm_clk_count; + +static unsigned int tdm_slot_offset[8] = {0, 4, 8, 12, 16, 20, 24, 28}; + +static int sdm845_tdm_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 = rtd->cpu_dai; + int ret = 0; + int channels, slot_width; + + channels = params_channels(params); + if (channels < 1 || channels > 8) { + pr_err("%s: invalid param channels %d\n", + __func__, channels); + return -EINVAL; + } + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S32_LE: + case SNDRV_PCM_FORMAT_S24_LE: + case SNDRV_PCM_FORMAT_S16_LE: + slot_width = 32; + break; + default: + pr_err("%s: invalid param format 0x%x\n", + __func__, params_format(params)); + return -EINVAL; + } + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0, 0x3, + channels, slot_width); + if (ret < 0) { + pr_err("%s: failed to set tdm slot, err:%d\n", + __func__, ret); + goto end; + } + + ret = snd_soc_dai_set_channel_map(cpu_dai, 0, NULL, + channels, tdm_slot_offset); + if (ret < 0) { + pr_err("%s: failed to set channel map, err:%d\n", + __func__, ret); + goto end; + } + } else { + ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0xf, 0, + channels, slot_width); + if (ret < 0) { + pr_err("%s: failed to set tdm slot, err:%d\n", + __func__, ret); + goto end; + } + + ret = snd_soc_dai_set_channel_map(cpu_dai, channels, + tdm_slot_offset, 0, NULL); + if (ret < 0) { + pr_err("%s: failed to set channel map, err:%d\n", + __func__, ret); + goto end; + } + } +end: + return ret; +} + +static int sdm845_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 = rtd->cpu_dai; + int ret = 0; + + switch (cpu_dai->id) { + case QUATERNARY_TDM_RX_0: + case QUATERNARY_TDM_TX_0: + ret = sdm845_tdm_snd_hw_params(substream, params); + break; + default: + pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id); + break; + } + return ret; +} + +static int sdm845_snd_startup(struct snd_pcm_substream *substream) +{ + unsigned int fmt = SND_SOC_DAIFMT_CBS_CFS; + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + + pr_debug("%s: dai_id: 0x%x\n", __func__, cpu_dai->id); + switch (cpu_dai->id) { + case PRIMARY_MI2S_RX: + case PRIMARY_MI2S_TX: + mutex_lock(&pri_mi2s_res_lock); + if (atomic_inc_return(&pri_mi2s_clk_count) == 1) { + snd_soc_dai_set_sysclk(cpu_dai, + Q6AFE_LPASS_CLK_ID_MCLK_1, + DEFAULT_MCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK); + snd_soc_dai_set_sysclk(cpu_dai, + Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT, + DEFAULT_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK); + } + mutex_unlock(&pri_mi2s_res_lock); + snd_soc_dai_set_fmt(cpu_dai, fmt); + break; + case QUATERNARY_TDM_RX_0: + case QUATERNARY_TDM_TX_0: + mutex_lock(&quat_tdm_res_lock); + if (atomic_inc_return(&quat_tdm_clk_count) == 1) { + snd_soc_dai_set_sysclk(cpu_dai, + Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT, + DEFAULT_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK); + } + mutex_unlock(&quat_tdm_res_lock); + break; + default: + pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id); + break; + } + return 0; +} + +static void sdm845_snd_shutdown(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + + pr_debug("%s: dai_id: 0x%x\n", __func__, cpu_dai->id); + switch (cpu_dai->id) { + case PRIMARY_MI2S_RX: + case PRIMARY_MI2S_TX: + mutex_lock(&pri_mi2s_res_lock); + if (!atomic_dec_return(&pri_mi2s_clk_count)) { + snd_soc_dai_set_sysclk(cpu_dai, + Q6AFE_LPASS_CLK_ID_MCLK_1, + 0, SNDRV_PCM_STREAM_PLAYBACK); + snd_soc_dai_set_sysclk(cpu_dai, + Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT, + 0, SNDRV_PCM_STREAM_PLAYBACK); + }; + mutex_unlock(&pri_mi2s_res_lock); + break; + case QUATERNARY_TDM_RX_0: + case QUATERNARY_TDM_TX_0: + mutex_lock(&quat_tdm_res_lock); + if (!atomic_dec_return(&quat_tdm_clk_count)) { + snd_soc_dai_set_sysclk(cpu_dai, + Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT, + 0, SNDRV_PCM_STREAM_PLAYBACK); + } + mutex_unlock(&quat_tdm_res_lock); + break; + default: + pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id); + break; + } +} + +static struct snd_soc_ops sdm845_be_ops = { + .hw_params = sdm845_snd_hw_params, + .startup = sdm845_snd_startup, + .shutdown = sdm845_snd_shutdown, +}; + +static int sdm845_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 = DEFAULT_SAMPLE_RATE_48K; + channels->min = channels->max = 2; + + return 0; +} + +static const struct snd_soc_dapm_widget sdm845_widgets[] = { + SND_SOC_DAPM_PINCTRL("Pri-mi2s-gpio", "pri_active", "pri_sleep"), + SND_SOC_DAPM_PINCTRL("Quat-tdm-gpio", "quat_active", "quat_sleep"), +}; + +static int sdm845_sbc_parse_of(struct snd_soc_card *card) +{ + struct device *dev = card->dev; + struct snd_soc_dai_link *link; + struct device_node *np, *codec, *platform, *cpu, *node; + int ret, num_links; + struct sdm845_snd_data *data; + + ret = snd_soc_of_parse_card_name(card, "qcom,model"); + if (ret) { + dev_err(dev, "Error parsing card name: %d\n", ret); + return ret; + } + + node = dev->of_node; + + /* DAPM routes */ + if (of_property_read_bool(node, "qcom,audio-routing")) { + ret = snd_soc_of_parse_audio_routing(card, + "qcom,audio-routing"); + if (ret) + return ret; + } + + /* Populate links */ + num_links = of_get_child_count(node); + + dev_info(dev, "Found %d child audio dai links..\n", num_links); + /* Allocate the private data and the DAI link array */ + data = kzalloc(sizeof(*data) + sizeof(*link) * num_links, + GFP_KERNEL); + if (!data) + return -ENOMEM; + + card->dai_link = &data->dai_link[0]; + card->num_links = num_links; + card->dapm_widgets = sdm845_widgets; + card->num_dapm_widgets = ARRAY_SIZE(sdm845_widgets); + + link = data->dai_link; + data->card = card; + + for_each_child_of_node(node, np) { + cpu = of_get_child_by_name(np, "cpu"); + platform = of_get_child_by_name(np, "platform"); + codec = of_get_child_by_name(np, "codec"); + + if (!cpu) { + dev_err(dev, "Can't find cpu DT node\n"); + ret = -EINVAL; + goto fail; + } + + link->cpu_of_node = of_parse_phandle(cpu, "sound-dai", 0); + if (!link->cpu_of_node) { + dev_err(card->dev, "error getting cpu phandle\n"); + ret = -EINVAL; + goto fail; + } + + link->platform_of_node = of_parse_phandle(platform, + "sound-dai", 0); + if (!link->platform_of_node) { + dev_err(card->dev, "error getting platform phandle\n"); + ret = -EINVAL; + goto fail; + } + + ret = snd_soc_of_get_dai_name(cpu, &link->cpu_dai_name); + if (ret) { + dev_err(card->dev, "error getting cpu dai name\n"); + goto fail; + } + + if (codec) { + ret = snd_soc_of_get_dai_link_codecs(dev, codec, link); + if (ret < 0) { + dev_err(card->dev, "error getting codec dai name\n"); + goto fail; + } + link->no_pcm = 1; + link->ignore_suspend = 1; + link->ignore_pmdown_time = 1; + link->ops = &sdm845_be_ops; + link->be_hw_params_fixup = sdm845_be_hw_params_fixup; + } else { + link->dynamic = 1; + link->codec_dai_name = "snd-soc-dummy-dai"; + link->codec_name = "snd-soc-dummy"; + } + + ret = of_property_read_string(np, "link-name", &link->name); + if (ret) { + dev_err(card->dev, + "error getting codec dai_link name\n"); + goto fail; + } + + link->dpcm_playback = 1; + link->dpcm_capture = 1; + link->stream_name = link->name; + link++; + } + dev_set_drvdata(dev, card); + snd_soc_card_set_drvdata(card, data); + + return ret; +fail: + kfree(data); + return ret; +} + +static void sdm845_init_supplies(struct device *dev) +{ + struct snd_soc_card *card = dev_get_drvdata(dev); + struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card); + + data->vdd_supply = regulator_get(dev, "cdc-vdd"); + if (IS_ERR(data->vdd_supply)) { + dev_err(dev, "Unable to get regulator supplies\n"); + data->vdd_supply = NULL; + return; + } + + if (regulator_enable(data->vdd_supply)) + dev_err(dev, "Unable to enable vdd supply\n"); +} + +static void sdm845_deinit_supplies(struct device *dev) +{ + struct snd_soc_card *card = dev_get_drvdata(dev); + struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card); + + if (!data->vdd_supply) + return; + + regulator_disable(data->vdd_supply); + regulator_put(data->vdd_supply); +} + +static int sdm845_bind(struct device *dev) +{ + struct snd_soc_card *card; + int ret; + + card = kzalloc(sizeof(*card), GFP_KERNEL); + if (!card) + return -ENOMEM; + + ret = component_bind_all(dev, card); + if (ret) { + dev_err(dev, "Audio components bind failed: %d\n", ret); + goto bind_fail; + } + + card->dev = dev; + ret = sdm845_sbc_parse_of(card); + if (ret) { + dev_err(dev, "Error parsing OF data\n"); + goto parse_dt_fail; + } + sdm845_init_supplies(dev); + + mutex_init(&pri_mi2s_res_lock); + mutex_init(&quat_tdm_res_lock); + atomic_set(&pri_mi2s_clk_count, 0); + atomic_set(&quat_tdm_clk_count, 0); + ret = snd_soc_register_card(card); + if (ret) { + dev_err(dev, "Sound card registration failed\n"); + goto register_card_fail; + } + return ret; + +register_card_fail: + mutex_destroy(&pri_mi2s_res_lock); + mutex_destroy(&quat_tdm_res_lock); + sdm845_deinit_supplies(dev); + kfree(snd_soc_card_get_drvdata(card)); +parse_dt_fail: + component_unbind_all(dev, card); +bind_fail: + kfree(card); + return ret; +} + +static void sdm845_unbind(struct device *dev) +{ + struct snd_soc_card *card = dev_get_drvdata(dev); + struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card); + + mutex_destroy(&pri_mi2s_res_lock); + mutex_destroy(&quat_tdm_res_lock); + if (data->vdd_supply) + regulator_put(data->vdd_supply); + component_unbind_all(dev, card); + snd_soc_unregister_card(card); + kfree(data); + kfree(card); +} + +static const struct component_master_ops sdm845_ops = { + .bind = sdm845_bind, + .unbind = sdm845_unbind, +}; + +static int sdm845_runtime_resume(struct device *dev) +{ + struct snd_soc_card *card = dev_get_drvdata(dev); + struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card); + + if (!data->vdd_supply) { + dev_dbg(dev, "no supplies defined\n"); + return 0; + } + + if (regulator_enable(data->vdd_supply)) + dev_err(dev, "Enable regulator supply failed\n"); + + return 0; +} + +static int sdm845_runtime_suspend(struct device *dev) +{ + struct snd_soc_card *card = dev_get_drvdata(dev); + struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card); + + if (!data->vdd_supply) { + dev_dbg(dev, "no supplies defined\n"); + return 0; + } + + if (regulator_disable(data->vdd_supply)) + dev_err(dev, "Disable regulator supply failed\n"); + + return 0; +} + +static const struct dev_pm_ops sdm845_pm_ops = { + SET_RUNTIME_PM_OPS(sdm845_runtime_suspend, + sdm845_runtime_resume, NULL) +}; + +static int sdm845_compare_of(struct device *dev, void *data) +{ + return dev->of_node == data; +} + +static void sdm845_release_of(struct device *dev, void *data) +{ + of_node_put(data); +} + +static int add_audio_components(struct device *dev, + struct component_match **matchptr) +{ + struct device_node *np, *platform, *cpu, *node, *dai_node; + + node = dev->of_node; + + for_each_child_of_node(node, np) { + cpu = of_get_child_by_name(np, "cpu"); + if (cpu) { + dai_node = of_parse_phandle(cpu, "sound-dai", 0); + of_node_get(dai_node); + component_match_add_release(dev, matchptr, + sdm845_release_of, + sdm845_compare_of, + dai_node); + } + + platform = of_get_child_by_name(np, "platform"); + if (platform) { + dai_node = of_parse_phandle(platform, "sound-dai", 0); + component_match_add_release(dev, matchptr, + sdm845_release_of, + sdm845_compare_of, + dai_node); + } + } + + return 0; +} + +static int sdm845_snd_platform_probe(struct platform_device *pdev) +{ + struct component_match *match = NULL; + int ret; + + ret = add_audio_components(&pdev->dev, &match); + if (ret) + return ret; + + return component_master_add_with_match(&pdev->dev, &sdm845_ops, match); +} + +static int sdm845_snd_platform_remove(struct platform_device *pdev) +{ + component_master_del(&pdev->dev, &sdm845_ops); + return 0; +} + +static const struct of_device_id sdm845_snd_device_id[] = { + { .compatible = "qcom,sdm845-sndcard" }, + {}, +}; +MODULE_DEVICE_TABLE(of, sdm845_snd_device_id); + +static struct platform_driver sdm845_snd_driver = { + .probe = sdm845_snd_platform_probe, + .remove = sdm845_snd_platform_remove, + .driver = { + .name = "msm-snd-sdm845", + .pm = &sdm845_pm_ops, + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(sdm845_snd_device_id), + }, +}; +module_platform_driver(sdm845_snd_driver); + +MODULE_DESCRIPTION("sdm845 ASoC Machine Driver"); +MODULE_LICENSE("GPL v2");