7ff6000627
CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
188 lines
4.9 KiB
C
188 lines
4.9 KiB
C
/*
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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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*
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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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#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 "omap-mcbsp.h"
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#include "omap-pcm.h"
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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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struct snd_soc_codec *codec = rtd->codec;
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struct snd_soc_card *card = codec->card;
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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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/* 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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.name = "TWL4030",
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.stream_name = "TWL4030",
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.cpu_dai_name = "omap-mcbsp.2",
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.codec_dai_name = "twl4030-hifi",
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.platform_name = "omap-pcm-audio",
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.codec_name = "twl4030-codec",
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.ops = &omap_twl4030_ops,
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},
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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,
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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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};
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static int omap_twl4030_probe(struct platform_device *pdev)
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{
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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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struct snd_soc_card *card = &omap_twl4030_card;
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int ret = 0;
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card->dev = &pdev->dev;
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if (node) {
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struct device_node *dai_node;
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if (snd_soc_of_parse_card_name(card, "ti,model")) {
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dev_err(&pdev->dev, "Card name is not provided\n");
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return -ENODEV;
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}
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dai_node = of_parse_phandle(node, "ti,mcbsp", 0);
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if (!dai_node) {
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dev_err(&pdev->dev, "McBSP node is not provided\n");
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return -EINVAL;
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}
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omap_twl4030_dai_links[0].cpu_dai_name = NULL;
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omap_twl4030_dai_links[0].cpu_of_node = dai_node;
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} else if (pdata) {
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if (pdata->card_name) {
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card->name = pdata->card_name;
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} else {
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dev_err(&pdev->dev, "Card name is not provided\n");
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return -ENODEV;
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}
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} else {
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dev_err(&pdev->dev, "Missing pdata\n");
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return -ENODEV;
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}
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ret = snd_soc_register_card(card);
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if (ret) {
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dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
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ret);
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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 int omap_twl4030_remove(struct platform_device *pdev)
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{
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struct snd_soc_card *card = platform_get_drvdata(pdev);
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snd_soc_unregister_card(card);
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return 0;
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}
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static const struct of_device_id omap_twl4030_of_match[] = {
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{.compatible = "ti,omap-twl4030", },
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{ },
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};
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MODULE_DEVICE_TABLE(of, omap_twl4030_of_match);
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static struct platform_driver omap_twl4030_driver = {
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.driver = {
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.name = "omap-twl4030",
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.owner = THIS_MODULE,
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.pm = &snd_soc_pm_ops,
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.of_match_table = omap_twl4030_of_match,
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},
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.probe = omap_twl4030_probe,
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.remove = omap_twl4030_remove,
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};
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module_platform_driver(omap_twl4030_driver);
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MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");
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MODULE_DESCRIPTION("ALSA SoC for TI SoC based boards with twl4030 codec");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:omap-twl4030");
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