From patchwork Tue Aug 9 14:21:54 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sylwester Nawrocki/Kernel \\(PLT\\) /SRPOL/Staff Engineer/Samsung Electronics" X-Patchwork-Id: 9271367 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 6D73C60754 for ; Tue, 9 Aug 2016 14:22:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5DD8C27E71 for ; Tue, 9 Aug 2016 14:22:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 528A128391; Tue, 9 Aug 2016 14:22:35 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2537427E71 for ; Tue, 9 Aug 2016 14:22:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752789AbcHIOWd (ORCPT ); Tue, 9 Aug 2016 10:22:33 -0400 Received: from mailout1.samsung.com ([203.254.224.24]:53256 "EHLO mailout1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752777AbcHIOWc (ORCPT ); Tue, 9 Aug 2016 10:22:32 -0400 Received: from epcpsbgm1new.samsung.com (epcpsbgm1 [203.254.230.26]) by mailout1.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTP id <0OBN01ASJBXHS2D0@mailout1.samsung.com>; Tue, 09 Aug 2016 23:22:29 +0900 (KST) X-AuditID: cbfee61a-f78ff6d000001462-ab-57a9e7259480 Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm1new.samsung.com (EPCPMTA) with SMTP id F9.3C.05218.527E9A75; Tue, 9 Aug 2016 23:22:29 +0900 (KST) Received: from AMDC1344.digital.local ([106.116.147.32]) by mmp1.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTPA id <0OBN001MGBX1Z100@mmp1.samsung.com>; Tue, 09 Aug 2016 23:22:29 +0900 (KST) From: Sylwester Nawrocki To: broonie@kernel.org Cc: alsa-devel@alsa-project.org, k.kozlowski@samsung.com, b.zolnierkie@samsung.com, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, Sylwester Nawrocki , Inha Song Subject: [PATCH v5 2/2] ASoC: samsung: Add machine driver for Exynos5433 based TM2 board Date: Tue, 09 Aug 2016 16:21:54 +0200 Message-id: <1470752514-11409-2-git-send-email-s.nawrocki@samsung.com> X-Mailer: git-send-email 1.9.1 In-reply-to: <1470752514-11409-1-git-send-email-s.nawrocki@samsung.com> References: <1470752514-11409-1-git-send-email-s.nawrocki@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprOLMWRmVeSWpSXmKPExsVy+t9jAV3V5yvDDZ7eFbO4cvEQk8XGGetZ LaY+fMJmMf/IOVaLXX/vM1q8fmFoMeP8PiaLw2/aWR04PDZ8bmLz2LSqk82jb8sqRo/Pm+QC WKK4bFJSczLLUov07RK4Mv7vVi44MYexYs+FJuYGxvf1XYycHBICJhIvLk9ngrDFJC7cW8/W xcjFISSwlFFi46F9zBDOL0aJp3//soBUsQkYSvQe7WMEsUWAOm7P6QQrYhZ4wSix6FIHWEJY IEri6Yo/YA0sAqoSO3b/ZAOxeQXcJLbc/88CsU5O4uSxyawgNqeAu8Sfz2/AeoWAar4smMA8 gZF3ASPDKkaJ1ILkguKk9FzDvNRyveLE3OLSvHS95PzcTYzg4HomtYPx4C73Q4wCHIxKPLwf Dq8IF2JNLCuuzD3EKMHBrCTC2/BkZbgQb0piZVVqUX58UWlOavEhRmkOFiVx3sf/14UJCaQn lqRmp6YWpBbBZJk4OKUaGNmCft/hWOExI+OZ/NRDGv8L3J9Mktp94+GuV/cufvogapMwN96g ZlfoqlfV+4M14q+82BusvjCqbZrmw/BbC6Km/i5fpXC9IXy3RApLak60oafK3sy9WwLW3/G+ Ezxh84W9P5OZfbJZLmtPvfG6aO2vym7LgJ9nBYNY5XPavYsKd3IXdUzK/6jEUpyRaKjFXFSc CADJlkeTKgIAAA== Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds the sound machine driver for TM2 and TM2E board. Speaker and headphone playback, Main Mic capture, Bluetooth, Voice call and external accessory are supported. Signed-off-by: Inha Song [k.kozlowski: rebased on 4.1] Signed-off-by: Krzysztof Kozlowski [s.nawrocki: rebased to 4.7, adjustment to the ASoC core changes, removed unused ops and direct calls to the max98504 function, added parsing of "audio-amplifier" and "audio-codec" properties, added TDM API calls, switched to gpiod API] Signed-off-by: Sylwester Nawrocki Tested-by: Chanwoo Choi --- Changes since v4 (addressing review comments from Charles): - changed the order of WM5110_FLL{1,2}, WM5110_FLL{1,2}_REFCLK setting, - ARIZONA_CLK_SYSCLK, ARIZONA_CLK_ASYNCCLK setting moved to late_probe, - added tm2_aif2_hw_free callback for disabling FLL2, - removed unneded card->dapm.bias_level assignment in tm2_mic_bias callback, - suspend_late, resume_early dev_pm_ops used instead of suspend_post, resume_pre struct snd_soc_card callbacks. Changes since v3: - removed SND_SOC_SAMSUNG_AUDSS from Kconfig. Changes since v2: - added missing Kconfig dependencies. Changes since initial version: - added PDM Tx channels setup through TDM API - adaptation to renamed 'samsung,model', 'samsung,i2s-controller', 'samsung,speaker-amplifier' properties, - removed some dev_dbg() calls, - cleaned up mic-bias GPIO handling and switched to gpiod API, - added parsing of 'audio-codec' property, - initialized codec_of_node of dai_link instead of codec_name, - switched to using clock, clock-names properties from the wm5110 codec node, - fixed error paths in probe() (of_node reference counting). --- sound/soc/samsung/Kconfig | 9 + sound/soc/samsung/Makefile | 2 + sound/soc/samsung/tm2_wm5110.c | 604 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 615 insertions(+) create mode 100644 sound/soc/samsung/tm2_wm5110.c -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/sound/soc/samsung/Kconfig b/sound/soc/samsung/Kconfig index 7b722b0..1bed8a5 100644 --- a/sound/soc/samsung/Kconfig +++ b/sound/soc/samsung/Kconfig @@ -229,3 +229,12 @@ config SND_SOC_ARNDALE_RT5631_ALC5631 depends on SND_SOC_SAMSUNG && I2C select SND_SAMSUNG_I2S select SND_SOC_RT5631 + +config SND_SOC_SAMSUNG_TM2_WM5110 + tristate "SoC I2S Audio support for WM5110 on TM2 board" + depends on SND_SOC_SAMSUNG && MFD_ARIZONA && I2C && SPI_MASTER + select SND_SOC_MAX98504 + select SND_SOC_WM5110 + select SND_SAMSUNG_I2S + help + Say Y if you want to add support for SoC audio on the TM2 board. diff --git a/sound/soc/samsung/Makefile b/sound/soc/samsung/Makefile index 5d03f5c..4444b9f 100644 --- a/sound/soc/samsung/Makefile +++ b/sound/soc/samsung/Makefile @@ -44,6 +44,7 @@ snd-soc-lowland-objs := lowland.o snd-soc-littlemill-objs := littlemill.o snd-soc-bells-objs := bells.o snd-soc-arndale-rt5631-objs := arndale_rt5631.o +snd-soc-tm2-wm5110-objs := tm2_wm5110.o obj-$(CONFIG_SND_SOC_SAMSUNG_JIVE_WM8750) += snd-soc-jive-wm8750.o obj-$(CONFIG_SND_SOC_SAMSUNG_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o @@ -69,3 +70,4 @@ obj-$(CONFIG_SND_SOC_LOWLAND) += snd-soc-lowland.o obj-$(CONFIG_SND_SOC_LITTLEMILL) += snd-soc-littlemill.o obj-$(CONFIG_SND_SOC_BELLS) += snd-soc-bells.o obj-$(CONFIG_SND_SOC_ARNDALE_RT5631_ALC5631) += snd-soc-arndale-rt5631.o +obj-$(CONFIG_SND_SOC_SAMSUNG_TM2_WM5110) += snd-soc-tm2-wm5110.o diff --git a/sound/soc/samsung/tm2_wm5110.c b/sound/soc/samsung/tm2_wm5110.c new file mode 100644 index 0000000..16c48fb --- /dev/null +++ b/sound/soc/samsung/tm2_wm5110.c @@ -0,0 +1,604 @@ +/* + * Copyright (C) 2015 - 2016 Samsung Electronics Co., Ltd. + * + * Authors: Inha Song + * Sylwester Nawrocki + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include + +#include "i2s.h" +#include "../codecs/wm5110.h" + +#define TM2_DAI_AIF1 0 +#define TM2_DAI_AIF2 1 + +struct tm2_machine_priv { + struct snd_soc_codec *codec; + struct clk *codec_mclk1; + struct clk *codec_mclk2; + + unsigned int sysclk_rate; + + struct gpio_desc *gpio_mic_bias; +}; + +static int tm2_start_sysclk(struct snd_soc_card *card) +{ + struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(card); + struct snd_soc_codec *codec = priv->codec; + unsigned long mclk_rate = clk_get_rate(priv->codec_mclk1); + int ret; + + ret = clk_prepare_enable(priv->codec_mclk1); + if (ret < 0) { + dev_err(card->dev, "Failed to enable mclk: %d\n", ret); + return ret; + } + + ret = snd_soc_codec_set_pll(codec, WM5110_FLL1_REFCLK, + ARIZONA_FLL_SRC_MCLK1, + mclk_rate, + priv->sysclk_rate); + if (ret < 0) { + dev_err(codec->dev, "Failed to set FLL1 source: %d\n", ret); + return ret; + } + + ret = snd_soc_codec_set_pll(codec, WM5110_FLL1, + ARIZONA_FLL_SRC_MCLK1, + mclk_rate, + priv->sysclk_rate); + if (ret < 0) { + dev_err(codec->dev, "Failed to start FLL1: %d\n", ret); + return ret; + } + + ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_SYSCLK, + ARIZONA_CLK_SRC_FLL1, + priv->sysclk_rate, + SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(codec->dev, "Failed to set SYSCLK source: %d\n", ret); + return ret; + } + + return 0; +} + +static int tm2_stop_sysclk(struct snd_soc_card *card) +{ + struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(card); + struct snd_soc_codec *codec = priv->codec; + int ret; + + ret = snd_soc_codec_set_pll(codec, WM5110_FLL1, 0, 0, 0); + if (ret < 0) { + dev_err(codec->dev, "Failed to stop FLL1: %d\n", ret); + return ret; + } + + ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_SYSCLK, + ARIZONA_CLK_SRC_FLL1, 0, 0); + if (ret < 0) { + dev_err(codec->dev, "Failed to stop SYSCLK: %d\n", ret); + return ret; + } + + clk_disable_unprepare(priv->codec_mclk1); + + return 0; +} + +static int tm2_aif1_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_codec *codec = rtd->codec; + struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(rtd->card); + + switch (params_rate(params)) { + case 4000: + case 8000: + case 12000: + case 16000: + case 24000: + case 32000: + case 48000: + case 96000: + case 192000: + /* Highest possible SYSCLK frequency: 147.456MHz */ + priv->sysclk_rate = 147456000U; + break; + case 11025: + case 22050: + case 44100: + case 88200: + case 176400: + /* Highest possible SYSCLK frequency: 135.4752 MHz */ + priv->sysclk_rate = 135475200U; + break; + default: + dev_err(codec->dev, "Not supported sample rate: %d\n", + params_rate(params)); + return -EINVAL; + } + + return tm2_start_sysclk(rtd->card); +} + +static struct snd_soc_ops tm2_aif1_ops = { + .hw_params = tm2_aif1_hw_params, +}; + +static int tm2_aif2_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_codec *codec = rtd->codec; + struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(rtd->card); + unsigned long mclk_rate = clk_get_rate(priv->codec_mclk1); + unsigned int asyncclk_rate; + int ret; + + switch (params_rate(params)) { + case 8000: + case 12000: + case 16000: + /* Highest possible ASYNCCLK frequency: 49.152MHz */ + asyncclk_rate = 49152000U; + break; + case 11025: + /* Highest possible ASYNCCLK frequency: 45.1584 MHz */ + asyncclk_rate = 45158400U; + break; + default: + dev_err(codec->dev, "Not supported sample rate: %d\n", + params_rate(params)); + return -EINVAL; + } + + ret = snd_soc_codec_set_pll(codec, WM5110_FLL2_REFCLK, + ARIZONA_FLL_SRC_MCLK1, + mclk_rate, + asyncclk_rate); + if (ret < 0) { + dev_err(codec->dev, "Failed to set FLL2 source: %d\n", ret); + return ret; + } + + ret = snd_soc_codec_set_pll(codec, WM5110_FLL2, + ARIZONA_FLL_SRC_MCLK1, + mclk_rate, + asyncclk_rate); + if (ret < 0) { + dev_err(codec->dev, "Failed to start FLL2: %d\n", ret); + return ret; + } + + ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_ASYNCCLK, + ARIZONA_CLK_SRC_FLL2, + asyncclk_rate, + SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(codec->dev, "Failed to set ASYNCCLK source: %d\n", ret); + return ret; + } + + return 0; +} + +static int tm2_aif2_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->codec; + int ret; + + /* disable FLL2 */ + ret = snd_soc_codec_set_pll(codec, WM5110_FLL2, ARIZONA_FLL_SRC_MCLK1, + 0, 0); + if (ret < 0) + dev_err(codec->dev, "Failed to stop FLL2: %d\n", ret); + + return ret; +} + +static struct snd_soc_ops tm2_aif2_ops = { + .hw_params = tm2_aif2_hw_params, + .hw_free = tm2_aif2_hw_free, +}; + +static int tm2_mic_bias(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_card *card = w->dapm->card; + struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(card); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + gpiod_set_value_cansleep(priv->gpio_mic_bias, 1); + break; + case SND_SOC_DAPM_POST_PMD: + gpiod_set_value_cansleep(priv->gpio_mic_bias, 0); + break; + } + + return 0; +} + +static int tm2_set_bias_level(struct snd_soc_card *card, + struct snd_soc_dapm_context *dapm, + enum snd_soc_bias_level level) +{ + struct snd_soc_pcm_runtime *rtd; + + rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); + + if (dapm->dev != rtd->codec_dai->dev) + return 0; + + switch (level) { + case SND_SOC_BIAS_STANDBY: + if (card->dapm.bias_level == SND_SOC_BIAS_OFF) + tm2_start_sysclk(card); + break; + case SND_SOC_BIAS_OFF: + tm2_stop_sysclk(card); + break; + default: + break; + } + + return 0; +} + +static struct snd_soc_aux_dev tm2_speaker_amp_dev; + +static int tm2_late_probe(struct snd_soc_card *card) +{ + struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(card); + struct snd_soc_dai_link_component dlc = { 0 }; + unsigned int ch_map[] = { 0, 1 }; + struct snd_soc_dai *amp_pdm_dai; + struct snd_soc_pcm_runtime *rtd; + struct snd_soc_dai *aif1_dai; + struct snd_soc_dai *aif2_dai; + int ret; + + rtd = snd_soc_get_pcm_runtime(card, card->dai_link[TM2_DAI_AIF1].name); + aif1_dai = rtd->codec_dai; + priv->codec = rtd->codec; + + /* 32 kHz must be enabled for jack detection */ + if (!IS_ERR(priv->codec_mclk2)) + clk_prepare_enable(priv->codec_mclk2); + + ret = snd_soc_dai_set_sysclk(aif1_dai, ARIZONA_CLK_SYSCLK, 0, 0); + if (ret < 0) { + dev_err(aif1_dai->dev, "Failed to set SYSCLK: %d\n", ret); + return ret; + } + + rtd = snd_soc_get_pcm_runtime(card, card->dai_link[TM2_DAI_AIF2].name); + aif2_dai = rtd->codec_dai; + + ret = snd_soc_dai_set_sysclk(aif2_dai, ARIZONA_CLK_ASYNCCLK, 0, 0); + if (ret < 0) { + dev_err(aif2_dai->dev, "Failed to set ASYNCCLK: %d\n", ret); + return ret; + } + + dlc.of_node = tm2_speaker_amp_dev.codec_of_node; + amp_pdm_dai = snd_soc_find_dai(&dlc); + if (!amp_pdm_dai) + return -ENODEV; + + /* Set the MAX98504 V/I sense PDM Tx DAI channel mapping */ + ret = snd_soc_dai_set_channel_map(amp_pdm_dai, ARRAY_SIZE(ch_map), + ch_map, 0, NULL); + if (ret < 0) + return ret; + + ret = snd_soc_dai_set_tdm_slot(amp_pdm_dai, 0x3, 0x0, 2, 16); + if (ret < 0) + return ret; + + return 0; +} + +static const struct snd_kcontrol_new tm2_controls[] = { + SOC_DAPM_PIN_SWITCH("HP"), + SOC_DAPM_PIN_SWITCH("SPK"), + SOC_DAPM_PIN_SWITCH("RCV"), + SOC_DAPM_PIN_SWITCH("VPS"), + SOC_DAPM_PIN_SWITCH("HDMI"), + + SOC_DAPM_PIN_SWITCH("Main Mic"), + SOC_DAPM_PIN_SWITCH("Sub Mic"), + SOC_DAPM_PIN_SWITCH("Third Mic"), + + SOC_DAPM_PIN_SWITCH("Headset Mic"), +}; + +const struct snd_soc_dapm_widget tm2_dapm_widgets[] = { + SND_SOC_DAPM_HP("HP", NULL), + SND_SOC_DAPM_SPK("SPK", NULL), + SND_SOC_DAPM_SPK("RCV", NULL), + SND_SOC_DAPM_LINE("VPS", NULL), + SND_SOC_DAPM_LINE("HDMI", NULL), + + SND_SOC_DAPM_MIC("Main Mic", tm2_mic_bias), + SND_SOC_DAPM_MIC("Sub Mic", NULL), + SND_SOC_DAPM_MIC("Third Mic", NULL), + + SND_SOC_DAPM_MIC("Headset Mic", NULL), +}; + +static const struct snd_soc_component_driver tm2_component = { + .name = "tm2-audio", +}; + +static struct snd_soc_dai_driver tm2_ext_dai[] = { + { + .name = "Voice call", + .playback = { + .channels_min = 1, + .channels_max = 4, + .rate_min = 8000, + .rate_max = 48000, + .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | + SNDRV_PCM_RATE_48000), + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .capture = { + .channels_min = 1, + .channels_max = 4, + .rate_min = 8000, + .rate_max = 48000, + .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | + SNDRV_PCM_RATE_48000), + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + }, + { + .name = "Bluetooth", + .playback = { + .channels_min = 1, + .channels_max = 4, + .rate_min = 8000, + .rate_max = 16000, + .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000), + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + .capture = { + .channels_min = 1, + .channels_max = 2, + .rate_min = 8000, + .rate_max = 16000, + .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000), + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + }, +}; + +static struct snd_soc_dai_link tm2_dai_links[] = { + { + .name = "WM5110 AIF1", + .stream_name = "HiFi Primary", + .codec_dai_name = "wm5110-aif1", + .ops = &tm2_aif1_ops, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, + }, { + .name = "WM5110 Voice", + .stream_name = "Voice call", + .codec_dai_name = "wm5110-aif2", + .ops = &tm2_aif2_ops, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, + .ignore_suspend = 1, + }, { + .name = "WM5110 BT", + .stream_name = "Bluetooth", + .codec_dai_name = "wm5110-aif3", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, + .ignore_suspend = 1, + } +}; + +static struct snd_soc_card tm2_card = { + .owner = THIS_MODULE, + + .dai_link = tm2_dai_links, + .num_links = ARRAY_SIZE(tm2_dai_links), + .controls = tm2_controls, + .num_controls = ARRAY_SIZE(tm2_controls), + .dapm_widgets = tm2_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(tm2_dapm_widgets), + .aux_dev = &tm2_speaker_amp_dev, + .num_aux_devs = 1, + + .late_probe = tm2_late_probe, + .set_bias_level = tm2_set_bias_level, +}; + +static int tm2_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct snd_soc_card *card = &tm2_card; + struct tm2_machine_priv *priv; + struct device_node *cpu_dai_node, *codec_dai_node; + int ret, i; + + if (!dev->of_node) { + dev_err(dev, "DT node is missing\n"); + return -ENODEV; + } + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + snd_soc_card_set_drvdata(card, priv); + card->dev = dev; + + priv->gpio_mic_bias = devm_gpiod_get(dev, "mic-bias", + GPIOF_OUT_INIT_LOW); + if (IS_ERR(priv->gpio_mic_bias)) { + dev_err(dev, "Failed to get mic bias gpio\n"); + return PTR_ERR(priv->gpio_mic_bias); + } + + ret = snd_soc_of_parse_card_name(card, "model"); + if (ret < 0) { + dev_err(dev, "Card name is not specified\n"); + return ret; + } + + ret = snd_soc_of_parse_audio_routing(card, "samsung,audio-routing"); + if (ret < 0) { + dev_err(dev, "Audio routing is not specified or invalid\n"); + return ret; + } + + card->aux_dev[0].codec_of_node = of_parse_phandle(dev->of_node, + "audio-amplifier", 0); + if (!card->aux_dev[0].codec_of_node) { + dev_err(dev, "audio-amplifier property invalid or missing\n"); + return -EINVAL; + } + + cpu_dai_node = of_parse_phandle(dev->of_node, "i2s-controller", 0); + if (!cpu_dai_node) { + dev_err(dev, "i2s-controllers property invalid or missing\n"); + ret = -EINVAL; + goto err_put_amp; + } + + codec_dai_node = of_parse_phandle(dev->of_node, "audio-codec", 0); + if (!codec_dai_node) { + dev_err(dev, "audio-codec property invalid or missing\n"); + ret = -EINVAL; + goto err_put_cpu_dai; + } + + for (i = 0; i < card->num_links; i++) { + card->dai_link[i].cpu_dai_name = NULL; + card->dai_link[i].cpu_name = NULL; + card->dai_link[i].platform_name = NULL; + card->dai_link[i].codec_of_node = codec_dai_node; + card->dai_link[i].cpu_of_node = cpu_dai_node; + card->dai_link[i].platform_of_node = cpu_dai_node; + } + + priv->codec_mclk1 = of_clk_get_by_name(codec_dai_node, "mclk1"); + if (IS_ERR(priv->codec_mclk1)) { + dev_err(dev, "Failed to get mclk1 clock\n"); + ret = PTR_ERR(priv->codec_mclk1); + goto err_put_codec_dai; + } + + /* mclk2 is optional */ + priv->codec_mclk2 = of_clk_get_by_name(codec_dai_node, "mclk2"); + if (IS_ERR(priv->codec_mclk2)) + dev_info(dev, "Not using mclk2 clock\n"); + + ret = devm_snd_soc_register_component(dev, &tm2_component, + tm2_ext_dai, ARRAY_SIZE(tm2_ext_dai)); + if (ret < 0) { + dev_err(dev, "Failed to register component: %d\n", ret); + goto err_put_mclk; + } + + ret = devm_snd_soc_register_card(dev, card); + if (ret < 0) { + dev_err(dev, "Failed to register card: %d\n", ret); + goto err_put_mclk; + } + + return 0; + +err_put_mclk: + clk_put(priv->codec_mclk1); + if (!IS_ERR(priv->codec_mclk2)) + clk_put(priv->codec_mclk2); +err_put_codec_dai: + of_node_put(codec_dai_node); +err_put_cpu_dai: + of_node_put(cpu_dai_node); +err_put_amp: + of_node_put(card->aux_dev[0].codec_of_node); + return ret; +} + +static int tm2_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = &tm2_card; + struct tm2_machine_priv *priv = snd_soc_card_get_drvdata(card); + + clk_put(priv->codec_mclk1); + if (!IS_ERR(priv->codec_mclk2)) + clk_put(priv->codec_mclk2); + + of_node_put(card->dai_link[0].codec_of_node); + of_node_put(card->dai_link[0].cpu_of_node); + of_node_put(card->aux_dev[0].codec_of_node); + + return 0; +} + +static int tm2_suspend_late(struct device *dev) +{ + struct snd_soc_card *card = dev_get_drvdata(dev); + + return tm2_stop_sysclk(card); +} + +static int tm2_resume_early(struct device *dev) +{ + struct snd_soc_card *card = dev_get_drvdata(dev); + + return tm2_start_sysclk(card); +} + +const struct dev_pm_ops tm2_pm_ops = { + .suspend = snd_soc_suspend, + .suspend_late = tm2_suspend_late, + .resume = snd_soc_resume, + .resume_early = tm2_resume_early, + .freeze = snd_soc_suspend, + .thaw = snd_soc_resume, + .poweroff = snd_soc_poweroff, + .restore = snd_soc_resume, +}; + +static const struct of_device_id tm2_of_match[] = { + { .compatible = "samsung,tm2-audio" }, + { }, +}; +MODULE_DEVICE_TABLE(of, tm2_of_match); + +static struct platform_driver tm2_driver = { + .driver = { + .name = "tm2-audio", + .pm = &tm2_pm_ops, + .of_match_table = tm2_of_match, + }, + .probe = tm2_probe, + .remove = tm2_remove, +}; +module_platform_driver(tm2_driver); + +MODULE_AUTHOR("Inha Song "); +MODULE_DESCRIPTION("ALSA SoC Exynos TM2 Audio Support"); +MODULE_LICENSE("GPL v2");