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536 lines
14 KiB
536 lines
14 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* ASoC driver for TI DAVINCI EVM platform |
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* |
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* Author: Vladimir Barinov, <[email protected]> |
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* Copyright: (C) 2007 MontaVista Software, Inc., <[email protected]> |
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*/ |
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#include <linux/module.h> |
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#include <linux/moduleparam.h> |
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#include <linux/timer.h> |
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#include <linux/interrupt.h> |
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#include <linux/platform_device.h> |
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#include <linux/i2c.h> |
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#include <linux/of_platform.h> |
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#include <linux/clk.h> |
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#include <sound/core.h> |
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#include <sound/pcm.h> |
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#include <sound/soc.h> |
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#include <asm/dma.h> |
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#include <asm/mach-types.h> |
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struct snd_soc_card_drvdata_davinci { |
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struct clk *mclk; |
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unsigned sysclk; |
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}; |
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static int evm_startup(struct snd_pcm_substream *substream) |
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{ |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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struct snd_soc_card *soc_card = rtd->card; |
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struct snd_soc_card_drvdata_davinci *drvdata = |
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snd_soc_card_get_drvdata(soc_card); |
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if (drvdata->mclk) |
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return clk_prepare_enable(drvdata->mclk); |
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return 0; |
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} |
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static void evm_shutdown(struct snd_pcm_substream *substream) |
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{ |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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struct snd_soc_card *soc_card = rtd->card; |
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struct snd_soc_card_drvdata_davinci *drvdata = |
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snd_soc_card_get_drvdata(soc_card); |
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clk_disable_unprepare(drvdata->mclk); |
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} |
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static int evm_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params) |
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{ |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
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struct snd_soc_card *soc_card = rtd->card; |
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int ret = 0; |
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unsigned sysclk = ((struct snd_soc_card_drvdata_davinci *) |
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snd_soc_card_get_drvdata(soc_card))->sysclk; |
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/* set the codec system clock */ |
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ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT); |
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if (ret < 0) |
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return ret; |
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/* set the CPU system clock */ |
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ret = snd_soc_dai_set_sysclk(cpu_dai, 0, sysclk, SND_SOC_CLOCK_OUT); |
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if (ret < 0 && ret != -ENOTSUPP) |
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return ret; |
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return 0; |
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} |
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static const struct snd_soc_ops evm_ops = { |
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.startup = evm_startup, |
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.shutdown = evm_shutdown, |
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.hw_params = evm_hw_params, |
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}; |
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/* davinci-evm machine dapm widgets */ |
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static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = { |
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SND_SOC_DAPM_HP("Headphone Jack", NULL), |
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SND_SOC_DAPM_LINE("Line Out", NULL), |
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SND_SOC_DAPM_MIC("Mic Jack", NULL), |
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SND_SOC_DAPM_LINE("Line In", NULL), |
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}; |
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/* davinci-evm machine audio_mapnections to the codec pins */ |
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static const struct snd_soc_dapm_route audio_map[] = { |
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/* Headphone connected to HPLOUT, HPROUT */ |
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{"Headphone Jack", NULL, "HPLOUT"}, |
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{"Headphone Jack", NULL, "HPROUT"}, |
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/* Line Out connected to LLOUT, RLOUT */ |
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{"Line Out", NULL, "LLOUT"}, |
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{"Line Out", NULL, "RLOUT"}, |
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/* Mic connected to (MIC3L | MIC3R) */ |
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{"MIC3L", NULL, "Mic Bias"}, |
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{"MIC3R", NULL, "Mic Bias"}, |
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{"Mic Bias", NULL, "Mic Jack"}, |
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/* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */ |
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{"LINE1L", NULL, "Line In"}, |
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{"LINE2L", NULL, "Line In"}, |
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{"LINE1R", NULL, "Line In"}, |
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{"LINE2R", NULL, "Line In"}, |
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}; |
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/* Logic for a aic3x as connected on a davinci-evm */ |
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static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd) |
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{ |
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struct snd_soc_card *card = rtd->card; |
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struct device_node *np = card->dev->of_node; |
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int ret; |
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/* Add davinci-evm specific widgets */ |
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snd_soc_dapm_new_controls(&card->dapm, aic3x_dapm_widgets, |
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ARRAY_SIZE(aic3x_dapm_widgets)); |
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if (np) { |
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ret = snd_soc_of_parse_audio_routing(card, "ti,audio-routing"); |
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if (ret) |
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return ret; |
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} else { |
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/* Set up davinci-evm specific audio path audio_map */ |
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snd_soc_dapm_add_routes(&card->dapm, audio_map, |
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ARRAY_SIZE(audio_map)); |
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} |
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/* not connected */ |
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snd_soc_dapm_nc_pin(&card->dapm, "MONO_LOUT"); |
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snd_soc_dapm_nc_pin(&card->dapm, "HPLCOM"); |
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snd_soc_dapm_nc_pin(&card->dapm, "HPRCOM"); |
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return 0; |
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} |
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/* davinci-evm digital audio interface glue - connects codec <--> CPU */ |
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SND_SOC_DAILINK_DEFS(dm6446, |
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DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcbsp")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-001b", |
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"tlv320aic3x-hifi")), |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcbsp"))); |
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static struct snd_soc_dai_link dm6446_evm_dai = { |
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.name = "TLV320AIC3X", |
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.stream_name = "AIC3X", |
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.init = evm_aic3x_init, |
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.ops = &evm_ops, |
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.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM | |
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SND_SOC_DAIFMT_IB_NF, |
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SND_SOC_DAILINK_REG(dm6446), |
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}; |
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SND_SOC_DAILINK_DEFS(dm355, |
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DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcbsp.1")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-001b", |
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"tlv320aic3x-hifi")), |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcbsp.1"))); |
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static struct snd_soc_dai_link dm355_evm_dai = { |
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.name = "TLV320AIC3X", |
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.stream_name = "AIC3X", |
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.init = evm_aic3x_init, |
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.ops = &evm_ops, |
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.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM | |
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SND_SOC_DAIFMT_IB_NF, |
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SND_SOC_DAILINK_REG(dm355), |
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}; |
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#ifdef CONFIG_SND_SOC_DM365_AIC3X_CODEC |
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SND_SOC_DAILINK_DEFS(dm365, |
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DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcbsp")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-0018", |
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"tlv320aic3x-hifi")), |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcbsp"))); |
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#elif defined(CONFIG_SND_SOC_DM365_VOICE_CODEC) |
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SND_SOC_DAILINK_DEFS(dm365, |
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DAILINK_COMP_ARRAY(COMP_CPU("davinci-vcif")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("cq93vc-codec", "cq93vc-hifi")), |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-vcif"))); |
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#endif |
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static struct snd_soc_dai_link dm365_evm_dai = { |
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#ifdef CONFIG_SND_SOC_DM365_AIC3X_CODEC |
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.name = "TLV320AIC3X", |
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.stream_name = "AIC3X", |
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.init = evm_aic3x_init, |
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.ops = &evm_ops, |
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.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM | |
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SND_SOC_DAIFMT_IB_NF, |
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SND_SOC_DAILINK_REG(dm365), |
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#elif defined(CONFIG_SND_SOC_DM365_VOICE_CODEC) |
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.name = "Voice Codec - CQ93VC", |
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.stream_name = "CQ93", |
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SND_SOC_DAILINK_REG(dm365), |
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#endif |
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}; |
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SND_SOC_DAILINK_DEFS(dm6467_aic3x, |
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DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcasp.0")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.0-001a", |
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"tlv320aic3x-hifi")), |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcasp.0"))); |
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SND_SOC_DAILINK_DEFS(dm6467_spdif, |
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DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcasp.1")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("spdif_dit", "dit-hifi")), |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcasp.1"))); |
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static struct snd_soc_dai_link dm6467_evm_dai[] = { |
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{ |
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.name = "TLV320AIC3X", |
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.stream_name = "AIC3X", |
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.init = evm_aic3x_init, |
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.ops = &evm_ops, |
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.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM | |
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SND_SOC_DAIFMT_IB_NF, |
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SND_SOC_DAILINK_REG(dm6467_aic3x), |
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}, |
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{ |
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.name = "McASP", |
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.stream_name = "spdif", |
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.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM | |
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SND_SOC_DAIFMT_IB_NF, |
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SND_SOC_DAILINK_REG(dm6467_spdif), |
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}, |
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}; |
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SND_SOC_DAILINK_DEFS(da830, |
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DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcasp.1")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-0018", |
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"tlv320aic3x-hifi")), |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcasp.1"))); |
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static struct snd_soc_dai_link da830_evm_dai = { |
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.name = "TLV320AIC3X", |
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.stream_name = "AIC3X", |
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.init = evm_aic3x_init, |
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.ops = &evm_ops, |
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.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM | |
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SND_SOC_DAIFMT_IB_NF, |
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SND_SOC_DAILINK_REG(da830), |
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}; |
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SND_SOC_DAILINK_DEFS(da850, |
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DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcasp.0")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-0018", |
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"tlv320aic3x-hifi")), |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcasp.0"))); |
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static struct snd_soc_dai_link da850_evm_dai = { |
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.name = "TLV320AIC3X", |
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.stream_name = "AIC3X", |
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.init = evm_aic3x_init, |
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.ops = &evm_ops, |
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.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM | |
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SND_SOC_DAIFMT_IB_NF, |
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SND_SOC_DAILINK_REG(da850), |
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}; |
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/* davinci dm6446 evm audio machine driver */ |
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/* |
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* ASP0 in DM6446 EVM is clocked by U55, as configured by |
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* board-dm644x-evm.c using GPIOs from U18. There are six |
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* options; here we "know" we use a 48 KHz sample rate. |
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*/ |
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static struct snd_soc_card_drvdata_davinci dm6446_snd_soc_card_drvdata = { |
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.sysclk = 12288000, |
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}; |
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static struct snd_soc_card dm6446_snd_soc_card_evm = { |
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.name = "DaVinci DM6446 EVM", |
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.owner = THIS_MODULE, |
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.dai_link = &dm6446_evm_dai, |
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.num_links = 1, |
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.drvdata = &dm6446_snd_soc_card_drvdata, |
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}; |
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/* davinci dm355 evm audio machine driver */ |
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/* ASP1 on DM355 EVM is clocked by an external oscillator */ |
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static struct snd_soc_card_drvdata_davinci dm355_snd_soc_card_drvdata = { |
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.sysclk = 27000000, |
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}; |
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static struct snd_soc_card dm355_snd_soc_card_evm = { |
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.name = "DaVinci DM355 EVM", |
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.owner = THIS_MODULE, |
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.dai_link = &dm355_evm_dai, |
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.num_links = 1, |
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.drvdata = &dm355_snd_soc_card_drvdata, |
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}; |
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/* davinci dm365 evm audio machine driver */ |
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static struct snd_soc_card_drvdata_davinci dm365_snd_soc_card_drvdata = { |
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.sysclk = 27000000, |
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}; |
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static struct snd_soc_card dm365_snd_soc_card_evm = { |
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.name = "DaVinci DM365 EVM", |
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.owner = THIS_MODULE, |
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.dai_link = &dm365_evm_dai, |
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.num_links = 1, |
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.drvdata = &dm365_snd_soc_card_drvdata, |
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}; |
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/* davinci dm6467 evm audio machine driver */ |
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static struct snd_soc_card_drvdata_davinci dm6467_snd_soc_card_drvdata = { |
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.sysclk = 27000000, |
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}; |
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static struct snd_soc_card dm6467_snd_soc_card_evm = { |
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.name = "DaVinci DM6467 EVM", |
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.owner = THIS_MODULE, |
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.dai_link = dm6467_evm_dai, |
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.num_links = ARRAY_SIZE(dm6467_evm_dai), |
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.drvdata = &dm6467_snd_soc_card_drvdata, |
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}; |
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static struct snd_soc_card_drvdata_davinci da830_snd_soc_card_drvdata = { |
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.sysclk = 24576000, |
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}; |
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static struct snd_soc_card da830_snd_soc_card = { |
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.name = "DA830/OMAP-L137 EVM", |
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.owner = THIS_MODULE, |
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.dai_link = &da830_evm_dai, |
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.num_links = 1, |
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.drvdata = &da830_snd_soc_card_drvdata, |
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}; |
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static struct snd_soc_card_drvdata_davinci da850_snd_soc_card_drvdata = { |
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.sysclk = 24576000, |
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}; |
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static struct snd_soc_card da850_snd_soc_card = { |
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.name = "DA850/OMAP-L138 EVM", |
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.owner = THIS_MODULE, |
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.dai_link = &da850_evm_dai, |
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.num_links = 1, |
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.drvdata = &da850_snd_soc_card_drvdata, |
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}; |
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#if defined(CONFIG_OF) |
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/* |
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* The struct is used as place holder. It will be completely |
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* filled with data from dt node. |
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*/ |
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SND_SOC_DAILINK_DEFS(evm, |
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DAILINK_COMP_ARRAY(COMP_EMPTY()), |
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "tlv320aic3x-hifi")), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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static struct snd_soc_dai_link evm_dai_tlv320aic3x = { |
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.name = "TLV320AIC3X", |
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.stream_name = "AIC3X", |
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.ops = &evm_ops, |
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.init = evm_aic3x_init, |
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.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM | |
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SND_SOC_DAIFMT_IB_NF, |
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SND_SOC_DAILINK_REG(evm), |
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}; |
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static const struct of_device_id davinci_evm_dt_ids[] = { |
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{ |
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.compatible = "ti,da830-evm-audio", |
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.data = (void *) &evm_dai_tlv320aic3x, |
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}, |
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{ /* sentinel */ } |
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}; |
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MODULE_DEVICE_TABLE(of, davinci_evm_dt_ids); |
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/* davinci evm audio machine driver */ |
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static struct snd_soc_card evm_soc_card = { |
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.owner = THIS_MODULE, |
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.num_links = 1, |
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}; |
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static int davinci_evm_probe(struct platform_device *pdev) |
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{ |
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struct device_node *np = pdev->dev.of_node; |
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const struct of_device_id *match; |
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struct snd_soc_dai_link *dai; |
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struct snd_soc_card_drvdata_davinci *drvdata = NULL; |
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struct clk *mclk; |
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int ret = 0; |
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match = of_match_device(of_match_ptr(davinci_evm_dt_ids), &pdev->dev); |
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if (!match) { |
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dev_err(&pdev->dev, "Error: No device match found\n"); |
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return -ENODEV; |
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} |
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dai = (struct snd_soc_dai_link *) match->data; |
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evm_soc_card.dai_link = dai; |
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dai->codecs->of_node = of_parse_phandle(np, "ti,audio-codec", 0); |
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if (!dai->codecs->of_node) |
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return -EINVAL; |
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dai->cpus->of_node = of_parse_phandle(np, "ti,mcasp-controller", 0); |
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if (!dai->cpus->of_node) |
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return -EINVAL; |
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dai->platforms->of_node = dai->cpus->of_node; |
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evm_soc_card.dev = &pdev->dev; |
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ret = snd_soc_of_parse_card_name(&evm_soc_card, "ti,model"); |
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if (ret) |
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return ret; |
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mclk = devm_clk_get(&pdev->dev, "mclk"); |
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if (PTR_ERR(mclk) == -EPROBE_DEFER) { |
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return -EPROBE_DEFER; |
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} else if (IS_ERR(mclk)) { |
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dev_dbg(&pdev->dev, "mclk not found.\n"); |
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mclk = NULL; |
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} |
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drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL); |
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if (!drvdata) |
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return -ENOMEM; |
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drvdata->mclk = mclk; |
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ret = of_property_read_u32(np, "ti,codec-clock-rate", &drvdata->sysclk); |
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if (ret < 0) { |
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if (!drvdata->mclk) { |
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dev_err(&pdev->dev, |
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"No clock or clock rate defined.\n"); |
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return -EINVAL; |
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} |
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drvdata->sysclk = clk_get_rate(drvdata->mclk); |
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} else if (drvdata->mclk) { |
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unsigned int requestd_rate = drvdata->sysclk; |
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clk_set_rate(drvdata->mclk, drvdata->sysclk); |
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drvdata->sysclk = clk_get_rate(drvdata->mclk); |
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if (drvdata->sysclk != requestd_rate) |
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dev_warn(&pdev->dev, |
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"Could not get requested rate %u using %u.\n", |
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requestd_rate, drvdata->sysclk); |
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} |
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snd_soc_card_set_drvdata(&evm_soc_card, drvdata); |
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ret = devm_snd_soc_register_card(&pdev->dev, &evm_soc_card); |
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if (ret) |
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dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); |
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return ret; |
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} |
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static struct platform_driver davinci_evm_driver = { |
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.probe = davinci_evm_probe, |
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.driver = { |
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.name = "davinci_evm", |
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.pm = &snd_soc_pm_ops, |
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.of_match_table = of_match_ptr(davinci_evm_dt_ids), |
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}, |
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}; |
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#endif |
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static struct platform_device *evm_snd_device; |
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static int __init evm_init(void) |
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{ |
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struct snd_soc_card *evm_snd_dev_data; |
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int index; |
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int ret; |
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|
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/* |
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* If dtb is there, the devices will be created dynamically. |
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* Only register platfrom driver structure. |
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*/ |
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#if defined(CONFIG_OF) |
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if (of_have_populated_dt()) |
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return platform_driver_register(&davinci_evm_driver); |
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#endif |
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|
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if (machine_is_davinci_evm()) { |
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evm_snd_dev_data = &dm6446_snd_soc_card_evm; |
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index = 0; |
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} else if (machine_is_davinci_dm355_evm()) { |
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evm_snd_dev_data = &dm355_snd_soc_card_evm; |
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index = 1; |
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} else if (machine_is_davinci_dm365_evm()) { |
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evm_snd_dev_data = &dm365_snd_soc_card_evm; |
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index = 0; |
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} else if (machine_is_davinci_dm6467_evm()) { |
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evm_snd_dev_data = &dm6467_snd_soc_card_evm; |
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index = 0; |
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} else if (machine_is_davinci_da830_evm()) { |
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evm_snd_dev_data = &da830_snd_soc_card; |
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index = 1; |
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} else if (machine_is_davinci_da850_evm()) { |
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evm_snd_dev_data = &da850_snd_soc_card; |
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index = 0; |
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} else |
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return -EINVAL; |
|
|
|
evm_snd_device = platform_device_alloc("soc-audio", index); |
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if (!evm_snd_device) |
|
return -ENOMEM; |
|
|
|
platform_set_drvdata(evm_snd_device, evm_snd_dev_data); |
|
ret = platform_device_add(evm_snd_device); |
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if (ret) |
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platform_device_put(evm_snd_device); |
|
|
|
return ret; |
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} |
|
|
|
static void __exit evm_exit(void) |
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{ |
|
#if defined(CONFIG_OF) |
|
if (of_have_populated_dt()) { |
|
platform_driver_unregister(&davinci_evm_driver); |
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return; |
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} |
|
#endif |
|
|
|
platform_device_unregister(evm_snd_device); |
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} |
|
|
|
module_init(evm_init); |
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module_exit(evm_exit); |
|
|
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MODULE_AUTHOR("Vladimir Barinov"); |
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MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver"); |
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MODULE_LICENSE("GPL");
|
|
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