2012-08-14 17:07:56 +08:00
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/*
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* omap-twl4030.c -- SoC audio for TI SoC based boards with twl4030 codec
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*
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* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
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* All rights reserved.
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*
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* Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
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*
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* This driver replaces the following machine drivers:
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* omap3beagle (Author: Steve Sakoman <steve@sakoman.com>)
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* omap3evm (Author: Anuj Aggarwal <anuj.aggarwal@ti.com>)
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* overo (Author: Steve Sakoman <steve@sakoman.com>)
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* igep0020 (Author: Enric Balletbo i Serra <eballetbo@iseebcn.com>)
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2012-12-31 18:51:48 +08:00
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* zoom2 (Author: Misael Lopez Cruz <misael.lopez@ti.com>)
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* sdp3430 (Author: Misael Lopez Cruz <misael.lopez@ti.com>)
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2012-08-14 17:07:56 +08:00
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#include <linux/platform_device.h>
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#include <linux/platform_data/omap-twl4030.h>
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#include <linux/module.h>
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#include <linux/of.h>
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2012-12-31 18:51:48 +08:00
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#include <linux/gpio.h>
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#include <linux/of_gpio.h>
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2012-08-14 17:07:56 +08:00
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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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2012-12-31 18:51:48 +08:00
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#include <sound/jack.h>
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2012-08-14 17:07:56 +08:00
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#include "omap-mcbsp.h"
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2012-12-31 18:51:48 +08:00
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struct omap_twl4030 {
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int jack_detect; /* board can detect jack events */
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struct snd_soc_jack hs_jack;
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};
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2012-08-14 17:07:56 +08:00
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static int omap_twl4030_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 = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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2014-05-19 17:41:46 +08:00
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struct snd_soc_card *card = rtd->card;
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2012-08-14 17:07:56 +08:00
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unsigned int fmt;
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int ret;
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switch (params_channels(params)) {
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case 2: /* Stereo I2S mode */
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fmt = SND_SOC_DAIFMT_I2S |
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SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBM_CFM;
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break;
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case 4: /* Four channel TDM mode */
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fmt = SND_SOC_DAIFMT_DSP_A |
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SND_SOC_DAIFMT_IB_NF |
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SND_SOC_DAIFMT_CBM_CFM;
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break;
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default:
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return -EINVAL;
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}
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/* Set codec DAI configuration */
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ret = snd_soc_dai_set_fmt(codec_dai, fmt);
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if (ret < 0) {
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dev_err(card->dev, "can't set codec DAI configuration\n");
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return ret;
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}
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/* Set cpu DAI configuration */
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ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
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if (ret < 0) {
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dev_err(card->dev, "can't set cpu DAI configuration\n");
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return ret;
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}
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return 0;
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}
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static struct snd_soc_ops omap_twl4030_ops = {
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.hw_params = omap_twl4030_hw_params,
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};
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2012-12-31 18:51:48 +08:00
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static const struct snd_soc_dapm_widget dapm_widgets[] = {
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SND_SOC_DAPM_SPK("Earpiece Spk", NULL),
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SND_SOC_DAPM_SPK("Handsfree Spk", NULL),
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SND_SOC_DAPM_HP("Headset Stereophone", NULL),
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SND_SOC_DAPM_SPK("Ext Spk", NULL),
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SND_SOC_DAPM_SPK("Carkit Spk", NULL),
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SND_SOC_DAPM_MIC("Main Mic", NULL),
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SND_SOC_DAPM_MIC("Sub Mic", NULL),
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SND_SOC_DAPM_MIC("Headset Mic", NULL),
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SND_SOC_DAPM_MIC("Carkit Mic", NULL),
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SND_SOC_DAPM_MIC("Digital0 Mic", NULL),
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SND_SOC_DAPM_MIC("Digital1 Mic", NULL),
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SND_SOC_DAPM_LINE("Line In", NULL),
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};
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static const struct snd_soc_dapm_route audio_map[] = {
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/* Headset Stereophone: HSOL, HSOR */
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{"Headset Stereophone", NULL, "HSOL"},
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{"Headset Stereophone", NULL, "HSOR"},
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/* External Speakers: HFL, HFR */
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{"Handsfree Spk", NULL, "HFL"},
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{"Handsfree Spk", NULL, "HFR"},
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/* External Speakers: PredrivL, PredrivR */
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{"Ext Spk", NULL, "PREDRIVEL"},
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{"Ext Spk", NULL, "PREDRIVER"},
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/* Carkit speakers: CARKITL, CARKITR */
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{"Carkit Spk", NULL, "CARKITL"},
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{"Carkit Spk", NULL, "CARKITR"},
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/* Earpiece */
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{"Earpiece Spk", NULL, "EARPIECE"},
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/* External Mics: MAINMIC, SUBMIC with bias */
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{"MAINMIC", NULL, "Main Mic"},
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{"Main Mic", NULL, "Mic Bias 1"},
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{"SUBMIC", NULL, "Sub Mic"},
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{"Sub Mic", NULL, "Mic Bias 2"},
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/* Headset Mic: HSMIC with bias */
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{"HSMIC", NULL, "Headset Mic"},
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{"Headset Mic", NULL, "Headset Mic Bias"},
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/* Digital Mics: DIGIMIC0, DIGIMIC1 with bias */
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{"DIGIMIC0", NULL, "Digital0 Mic"},
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{"Digital0 Mic", NULL, "Mic Bias 1"},
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{"DIGIMIC1", NULL, "Digital1 Mic"},
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{"Digital1 Mic", NULL, "Mic Bias 2"},
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/* Carkit In: CARKITMIC */
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{"CARKITMIC", NULL, "Carkit Mic"},
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/* Aux In: AUXL, AUXR */
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{"AUXL", NULL, "Line In"},
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{"AUXR", NULL, "Line In"},
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};
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/* Headset jack detection DAPM pins */
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static struct snd_soc_jack_pin hs_jack_pins[] = {
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{
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.pin = "Headset Mic",
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.mask = SND_JACK_MICROPHONE,
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},
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{
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.pin = "Headset Stereophone",
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.mask = SND_JACK_HEADPHONE,
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},
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};
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/* Headset jack detection gpios */
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static struct snd_soc_jack_gpio hs_jack_gpios[] = {
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{
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.name = "hsdet-gpio",
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.report = SND_JACK_HEADSET,
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.debounce_time = 200,
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},
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};
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static inline void twl4030_disconnect_pin(struct snd_soc_dapm_context *dapm,
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int connected, char *pin)
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{
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if (!connected)
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snd_soc_dapm_disable_pin(dapm, pin);
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}
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static int omap_twl4030_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_codec *codec = rtd->codec;
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2014-05-19 17:41:46 +08:00
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struct snd_soc_card *card = rtd->card;
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2012-12-31 18:51:48 +08:00
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struct snd_soc_dapm_context *dapm = &codec->dapm;
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struct omap_tw4030_pdata *pdata = dev_get_platdata(card->dev);
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struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card);
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int ret = 0;
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/* Headset jack detection only if it is supported */
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if (priv->jack_detect > 0) {
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hs_jack_gpios[0].gpio = priv->jack_detect;
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ret = snd_soc_jack_new(codec, "Headset Jack", SND_JACK_HEADSET,
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&priv->hs_jack);
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if (ret)
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return ret;
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ret = snd_soc_jack_add_pins(&priv->hs_jack,
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ARRAY_SIZE(hs_jack_pins),
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hs_jack_pins);
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if (ret)
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return ret;
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ret = snd_soc_jack_add_gpios(&priv->hs_jack,
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ARRAY_SIZE(hs_jack_gpios),
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hs_jack_gpios);
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if (ret)
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return ret;
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}
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/*
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* NULL pdata means we booted with DT. In this case the routing is
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* provided and the card is fully routed, no need to mark pins.
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*/
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if (!pdata || !pdata->custom_routing)
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return ret;
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/* Disable not connected paths if not used */
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twl4030_disconnect_pin(dapm, pdata->has_ear, "Earpiece Spk");
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twl4030_disconnect_pin(dapm, pdata->has_hf, "Handsfree Spk");
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twl4030_disconnect_pin(dapm, pdata->has_hs, "Headset Stereophone");
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twl4030_disconnect_pin(dapm, pdata->has_predriv, "Ext Spk");
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twl4030_disconnect_pin(dapm, pdata->has_carkit, "Carkit Spk");
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twl4030_disconnect_pin(dapm, pdata->has_mainmic, "Main Mic");
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twl4030_disconnect_pin(dapm, pdata->has_submic, "Sub Mic");
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twl4030_disconnect_pin(dapm, pdata->has_hsmic, "Headset Mic");
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twl4030_disconnect_pin(dapm, pdata->has_carkitmic, "Carkit Mic");
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twl4030_disconnect_pin(dapm, pdata->has_digimic0, "Digital0 Mic");
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twl4030_disconnect_pin(dapm, pdata->has_digimic1, "Digital1 Mic");
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twl4030_disconnect_pin(dapm, pdata->has_linein, "Line In");
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return ret;
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}
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2014-06-03 18:31:46 +08:00
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static int omap_twl4030_card_remove(struct snd_soc_card *card)
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ASoC: free jack GPIOs before the sound card is freed
This is the same change as commit fb6b8e71448a "ASoC: tegra: free jack
GPIOs before the sound card is freed", but applied to all other ASoC
machine drivers where code inspection indicates the same problem exists.
That commit's description is:
==========
snd_soc_jack_add_gpios() schedules a work queue item to poll the GPIO to
generate an initial jack status report. If sound card initialization
fails, that work item needs to be cancelled, so it doesn't run after the
card has been freed. Specifically, freeing the card calls
snd_jack_dev_free() which calls snd_jack_dev_disconnect() which sets
jack->input_dev = NULL, and input_dev is used by snd_jack_report(), which
is called from the work queue item.
snd_soc_jack_free_gpios() cancels the work item. The Tegra ASoC machine
drivers do call this function in the platform driver remove() callback.
However, this happens after the sound card is freed, at least when the
card is freed due to errors late during snd_soc_instantiate_card(). This
leaves a window where the work item can execute after the card is freed.
In next-20140522, sound card initialization does fail for unrelated
reasons, and hits the problem described above.
To solve this, fix the Tegra ASoC machine drivers to clean up the Jack
GPIOs during the snd_soc_card's .remove() callback, which is executed
before the overall card object is freed. also, guard the cleanup call
based on whether we actually setup up the GPIOs in the first place.
Ideally, we'd do the cleanup in a struct snd_soc_dai_link .fini/remove
function to match where the GPIOs get set up. However, there is no such
callback.
==========
Note that I have not even compile-tested this in most cases, since most
of the drivers rely on specific mach-* support I don't have enabled, and
don't support COMPILE_TEST. Testing by the relevant board maintainers
would be useful.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-31 02:42:57 +08:00
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{
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struct omap_twl4030 *priv = snd_soc_card_get_drvdata(card);
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if (priv->jack_detect > 0)
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snd_soc_jack_free_gpios(&priv->hs_jack,
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ARRAY_SIZE(hs_jack_gpios),
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hs_jack_gpios);
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return 0;
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}
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2012-08-14 17:07:56 +08:00
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/* Digital audio interface glue - connects codec <--> CPU */
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static struct snd_soc_dai_link omap_twl4030_dai_links[] = {
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{
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2012-12-31 18:51:48 +08:00
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.name = "TWL4030 HiFi",
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.stream_name = "TWL4030 HiFi",
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2012-08-14 17:07:56 +08:00
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.cpu_dai_name = "omap-mcbsp.2",
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.codec_dai_name = "twl4030-hifi",
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2014-04-16 20:46:22 +08:00
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.platform_name = "omap-mcbsp.2",
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2012-08-14 17:07:56 +08:00
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.codec_name = "twl4030-codec",
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2012-12-31 18:51:48 +08:00
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.init = omap_twl4030_init,
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2012-08-14 17:07:56 +08:00
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.ops = &omap_twl4030_ops,
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},
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2012-12-31 18:51:48 +08:00
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{
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.name = "TWL4030 Voice",
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.stream_name = "TWL4030 Voice",
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.cpu_dai_name = "omap-mcbsp.3",
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.codec_dai_name = "twl4030-voice",
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2014-04-16 20:46:22 +08:00
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.platform_name = "omap-mcbsp.2",
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2012-12-31 18:51:48 +08:00
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.codec_name = "twl4030-codec",
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.dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |
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SND_SOC_DAIFMT_CBM_CFM,
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},
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2012-08-14 17:07:56 +08:00
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};
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/* Audio machine driver */
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static struct snd_soc_card omap_twl4030_card = {
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.owner = THIS_MODULE,
|
ASoC: free jack GPIOs before the sound card is freed
This is the same change as commit fb6b8e71448a "ASoC: tegra: free jack
GPIOs before the sound card is freed", but applied to all other ASoC
machine drivers where code inspection indicates the same problem exists.
That commit's description is:
==========
snd_soc_jack_add_gpios() schedules a work queue item to poll the GPIO to
generate an initial jack status report. If sound card initialization
fails, that work item needs to be cancelled, so it doesn't run after the
card has been freed. Specifically, freeing the card calls
snd_jack_dev_free() which calls snd_jack_dev_disconnect() which sets
jack->input_dev = NULL, and input_dev is used by snd_jack_report(), which
is called from the work queue item.
snd_soc_jack_free_gpios() cancels the work item. The Tegra ASoC machine
drivers do call this function in the platform driver remove() callback.
However, this happens after the sound card is freed, at least when the
card is freed due to errors late during snd_soc_instantiate_card(). This
leaves a window where the work item can execute after the card is freed.
In next-20140522, sound card initialization does fail for unrelated
reasons, and hits the problem described above.
To solve this, fix the Tegra ASoC machine drivers to clean up the Jack
GPIOs during the snd_soc_card's .remove() callback, which is executed
before the overall card object is freed. also, guard the cleanup call
based on whether we actually setup up the GPIOs in the first place.
Ideally, we'd do the cleanup in a struct snd_soc_dai_link .fini/remove
function to match where the GPIOs get set up. However, there is no such
callback.
==========
Note that I have not even compile-tested this in most cases, since most
of the drivers rely on specific mach-* support I don't have enabled, and
don't support COMPILE_TEST. Testing by the relevant board maintainers
would be useful.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-31 02:42:57 +08:00
|
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.remove = omap_twl4030_card_remove,
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2012-08-14 17:07:56 +08:00
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.dai_link = omap_twl4030_dai_links,
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.num_links = ARRAY_SIZE(omap_twl4030_dai_links),
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2012-12-31 18:51:48 +08:00
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.dapm_widgets = dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(dapm_widgets),
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.dapm_routes = audio_map,
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.num_dapm_routes = ARRAY_SIZE(audio_map),
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2012-08-14 17:07:56 +08:00
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|
|
};
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2012-12-07 22:26:29 +08:00
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static int omap_twl4030_probe(struct platform_device *pdev)
|
2012-08-14 17:07:56 +08:00
|
|
|
{
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struct omap_tw4030_pdata *pdata = dev_get_platdata(&pdev->dev);
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struct device_node *node = pdev->dev.of_node;
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|
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struct snd_soc_card *card = &omap_twl4030_card;
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2012-12-31 18:51:48 +08:00
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|
struct omap_twl4030 *priv;
|
2012-08-14 17:07:56 +08:00
|
|
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int ret = 0;
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card->dev = &pdev->dev;
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2012-12-31 18:51:48 +08:00
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priv = devm_kzalloc(&pdev->dev, sizeof(struct omap_twl4030), GFP_KERNEL);
|
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|
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if (priv == NULL)
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|
|
|
return -ENOMEM;
|
|
|
|
|
2012-08-14 17:07:56 +08:00
|
|
|
if (node) {
|
|
|
|
struct device_node *dai_node;
|
2012-12-31 18:51:48 +08:00
|
|
|
struct property *prop;
|
2012-08-14 17:07:56 +08:00
|
|
|
|
|
|
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if (snd_soc_of_parse_card_name(card, "ti,model")) {
|
|
|
|
dev_err(&pdev->dev, "Card name is not provided\n");
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
|
|
|
dai_node = of_parse_phandle(node, "ti,mcbsp", 0);
|
|
|
|
if (!dai_node) {
|
|
|
|
dev_err(&pdev->dev, "McBSP node is not provided\n");
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
omap_twl4030_dai_links[0].cpu_dai_name = NULL;
|
|
|
|
omap_twl4030_dai_links[0].cpu_of_node = dai_node;
|
|
|
|
|
2014-04-16 20:46:22 +08:00
|
|
|
omap_twl4030_dai_links[0].platform_name = NULL;
|
|
|
|
omap_twl4030_dai_links[0].platform_of_node = dai_node;
|
|
|
|
|
2012-12-31 18:51:48 +08:00
|
|
|
dai_node = of_parse_phandle(node, "ti,mcbsp-voice", 0);
|
|
|
|
if (!dai_node) {
|
|
|
|
card->num_links = 1;
|
|
|
|
} else {
|
|
|
|
omap_twl4030_dai_links[1].cpu_dai_name = NULL;
|
|
|
|
omap_twl4030_dai_links[1].cpu_of_node = dai_node;
|
2014-04-16 20:46:22 +08:00
|
|
|
|
|
|
|
omap_twl4030_dai_links[1].platform_name = NULL;
|
|
|
|
omap_twl4030_dai_links[1].platform_of_node = dai_node;
|
2012-12-31 18:51:48 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
priv->jack_detect = of_get_named_gpio(node,
|
|
|
|
"ti,jack-det-gpio", 0);
|
|
|
|
|
|
|
|
/* Optional: audio routing can be provided */
|
|
|
|
prop = of_find_property(node, "ti,audio-routing", NULL);
|
|
|
|
if (prop) {
|
|
|
|
ret = snd_soc_of_parse_audio_routing(card,
|
|
|
|
"ti,audio-routing");
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
card->fully_routed = 1;
|
|
|
|
}
|
2012-08-14 17:07:56 +08:00
|
|
|
} else if (pdata) {
|
|
|
|
if (pdata->card_name) {
|
|
|
|
card->name = pdata->card_name;
|
|
|
|
} else {
|
|
|
|
dev_err(&pdev->dev, "Card name is not provided\n");
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
2012-12-31 18:51:48 +08:00
|
|
|
|
|
|
|
if (!pdata->voice_connected)
|
|
|
|
card->num_links = 1;
|
|
|
|
|
|
|
|
priv->jack_detect = pdata->jack_detect;
|
2012-08-14 17:07:56 +08:00
|
|
|
} else {
|
|
|
|
dev_err(&pdev->dev, "Missing pdata\n");
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
2012-12-31 18:51:48 +08:00
|
|
|
snd_soc_card_set_drvdata(card, priv);
|
2013-09-17 12:23:59 +08:00
|
|
|
ret = devm_snd_soc_register_card(&pdev->dev, card);
|
2012-08-14 17:07:56 +08:00
|
|
|
if (ret) {
|
2013-09-17 12:23:59 +08:00
|
|
|
dev_err(&pdev->dev, "devm_snd_soc_register_card() failed: %d\n",
|
2012-08-14 17:07:56 +08:00
|
|
|
ret);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct of_device_id omap_twl4030_of_match[] = {
|
|
|
|
{.compatible = "ti,omap-twl4030", },
|
|
|
|
{ },
|
|
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(of, omap_twl4030_of_match);
|
|
|
|
|
|
|
|
static struct platform_driver omap_twl4030_driver = {
|
|
|
|
.driver = {
|
|
|
|
.name = "omap-twl4030",
|
|
|
|
.owner = THIS_MODULE,
|
|
|
|
.pm = &snd_soc_pm_ops,
|
|
|
|
.of_match_table = omap_twl4030_of_match,
|
|
|
|
},
|
|
|
|
.probe = omap_twl4030_probe,
|
|
|
|
};
|
|
|
|
|
|
|
|
module_platform_driver(omap_twl4030_driver);
|
|
|
|
|
|
|
|
MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");
|
|
|
|
MODULE_DESCRIPTION("ALSA SoC for TI SoC based boards with twl4030 codec");
|
|
|
|
MODULE_LICENSE("GPL");
|
|
|
|
MODULE_ALIAS("platform:omap-twl4030");
|