Hello and thanks for the support

I would advice to update. Eventually you want to upstream the codec driver,

so it is going to be easier for you.

Well i followed your advice and updated to kernel version 3.7.4+ and to ALSA version k3.7.4+, and i will be glad to upstram the finalized driver. As you recommended i am using your omap_twl4030.c file as a starting-point for my driver development, and i am trying to get the adapted machine driver to run but without success. The machine driver is not even going into

* static __devinit int omap_pcm3168_probe(struct platform_device *pdev)*

and i am really stuck at this point.

It would be really nice if you could help me.

Regards Wendelin

File:

/* * omap-pcm3168.c -- PCM3168 ASoC driver for the BeagleBoard. * * based on: * > omap-twl4030.c -- SoC audio for TI SoC based boards with twl4030 codec * > * > Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com * > All rights reserved. * > * > Author: Peter Ujfalusi peter.ujfalusi@ti.com * * adapted by Klimann Wendelin wklimann@hotmail.com * * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * */

#include <linux/platform_device.h> //#include <linux/platform_data/omap-twl4030.h> #include <linux/module.h> #include <linux/of.h>

#include <sound/core.h> #include <sound/pcm.h> #include <sound/soc.h>

#include "omap-mcbsp.h" #include "omap-pcm.h"

static int omap_pcm3168_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; struct snd_soc_codec *codec = rtd->codec; struct snd_soc_card *card = codec->card; unsigned int fmt; int ret;

fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF;

/* Set codec DAI configuration */ ret = snd_soc_dai_set_fmt(codec_dai, fmt); if (ret < 0) { dev_err(card->dev, "can't set codec DAI configuration\n"); return ret; }

/* Set cpu DAI configuration */ ret = snd_soc_dai_set_fmt(cpu_dai, fmt); if (ret < 0) { dev_err(card->dev, "can't set cpu DAI configuration\n"); return ret; }

return 0; }

static struct snd_soc_ops omap_pcm3168_ops = { .hw_params = omap_pcm3168_hw_params, };

/* Digital audio interface glue - connects codec <--> CPU */ static struct snd_soc_dai_link omap_pcm3168_dai_links[] = { { .name = "PCM3168", .stream_name = "PCM3168", .cpu_dai_name = "omap-mcbsp.3", .codec_dai_name = "pcm3168-hifi", .platform_name = "omap-pcm-audio", .codec_name = "pcm3168-codec.0", .ops = &omap_pcm3168_ops, }, };

/* Audio machine driver */ static struct snd_soc_card omap_pcm3168_card = { .owner = THIS_MODULE, .dai_link = omap_pcm3168_dai_links, .num_links = ARRAY_SIZE(omap_pcm3168_dai_links), };

static __devinit int omap_pcm3168_probe(struct platform_device *pdev) { printk("in __devinit omap_pcm3168_probe -> by kli");

struct omap_tw4030_pdata *pdata = dev_get_platdata(&pdev->dev); struct device_node *node = pdev->dev.of_node; struct snd_soc_card *card = &omap_pcm3168_card; int ret = 0;

card->dev = &pdev->dev;

if (node) { struct device_node *dai_node;

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_pcm3168_dai_links[0].cpu_dai_name = NULL; omap_pcm3168_dai_links[0].cpu_of_node = dai_node;

} /*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; } }*/ else { dev_err(&pdev->dev, "Missing pdata\n"); return -ENODEV; }

ret = snd_soc_register_card(card); if (ret) { dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret); return ret; }

return 0; }

static int __devexit omap_pcm3168_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev);

snd_soc_unregister_card(card);

return 0; }

static const struct of_device_id omap_pcm3168_of_match[] = { {.compatible = "ti,omap-pcm3168", }, { }, }; MODULE_DEVICE_TABLE(of, omap_pcm3168_of_match);

static struct platform_driver omap_pcm3168_driver = { .driver = { .name = "omap-pcm3168", .owner = THIS_MODULE, // .pm = &snd_soc_pm_ops, // .of_match_table = omap_pcm3168_of_match, }, .probe = omap_pcm3168_probe, .remove = __devexit_p(omap_pcm3168_remove), };

module_platform_driver(omap_pcm3168_driver);

MODULE_AUTHOR("Klimann Wendelin wklimann@hotmail.com"); MODULE_DESCRIPTION("ALSA SoC PCM3168 add on Soundcard"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:omap-pcm3168");