Release 4.7 sound/soc/fsl/imx-sgtl5000.c

Directory: sound/soc/fsl
/*
 * Copyright 2012 Freescale Semiconductor, Inc.
 * Copyright 2012 Linaro Ltd.
 *
 * The code contained herein is licensed under the GNU General Public
 * License. You may obtain a copy of the GNU General Public License
 * Version 2 or later at the following locations:
 *
 * http://www.opensource.org/licenses/gpl-license.html
 * http://www.gnu.org/copyleft/gpl.html
 */

#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/i2c.h>
#include <linux/clk.h>
#include <sound/soc.h>

#include "../codecs/sgtl5000.h"
#include "imx-audmux.h"


#define DAI_NAME_SIZE	32


struct imx_sgtl5000_data {
	
struct snd_soc_dai_link dai;
	
struct snd_soc_card card;
	
char codec_dai_name[DAI_NAME_SIZE];
	
char platform_name[DAI_NAME_SIZE];
	
struct clk *codec_clk;
	
unsigned int clk_frequency;
};



static int imx_sgtl5000_dai_init(struct snd_soc_pcm_runtime *rtd)
{
	struct imx_sgtl5000_data *data = snd_soc_card_get_drvdata(rtd->card);
	struct device *dev = rtd->card->dev;
	int ret;

	ret = snd_soc_dai_set_sysclk(rtd->codec_dai, SGTL5000_SYSCLK,
				     data->clk_frequency, SND_SOC_CLOCK_IN);
	if (ret) {
		dev_err(dev, "could not set codec driver clock params\n");
		return ret;
	}

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
shawn guo shawn guo 73 100.00% 2 100.00%
Total 73 100.00% 2 100.00%


static const struct snd_soc_dapm_widget imx_sgtl5000_dapm_widgets[] = {
	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	SND_SOC_DAPM_LINE("Line In Jack", NULL),
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_SPK("Line Out Jack", NULL),
	SND_SOC_DAPM_SPK("Ext Spk", NULL),
};



static int imx_sgtl5000_probe(struct platform_device *pdev)
{
	struct device_node *np = pdev->dev.of_node;
	struct device_node *ssi_np, *codec_np;
	struct platform_device *ssi_pdev;
	struct i2c_client *codec_dev;
	struct imx_sgtl5000_data *data = NULL;
	int int_port, ext_port;
	int ret;

	ret = of_property_read_u32(np, "mux-int-port", &int_port);
	if (ret) {
		dev_err(&pdev->dev, "mux-int-port missing or invalid\n");
		return ret;
	}
	ret = of_property_read_u32(np, "mux-ext-port", &ext_port);
	if (ret) {
		dev_err(&pdev->dev, "mux-ext-port missing or invalid\n");
		return ret;
	}

	/*
         * The port numbering in the hardware manual starts at 1, while
         * the audmux API expects it starts at 0.
         */
	int_port--;
	ext_port--;
	ret = imx_audmux_v2_configure_port(int_port,
			IMX_AUDMUX_V2_PTCR_SYN |
			IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
			IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
			IMX_AUDMUX_V2_PTCR_TFSDIR |
			IMX_AUDMUX_V2_PTCR_TCLKDIR,
			IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port));
	if (ret) {
		dev_err(&pdev->dev, "audmux internal port setup failed\n");
		return ret;
	}
	ret = imx_audmux_v2_configure_port(ext_port,
			IMX_AUDMUX_V2_PTCR_SYN,
			IMX_AUDMUX_V2_PDCR_RXDSEL(int_port));
	if (ret) {
		dev_err(&pdev->dev, "audmux external port setup failed\n");
		return ret;
	}

	ssi_np = of_parse_phandle(pdev->dev.of_node, "ssi-controller", 0);
	codec_np = of_parse_phandle(pdev->dev.of_node, "audio-codec", 0);
	if (!ssi_np || !codec_np) {
		dev_err(&pdev->dev, "phandle missing or invalid\n");
		ret = -EINVAL;
		goto fail;
	}

	ssi_pdev = of_find_device_by_node(ssi_np);
	if (!ssi_pdev) {
		dev_err(&pdev->dev, "failed to find SSI platform device\n");
		ret = -EPROBE_DEFER;
		goto fail;
	}
	codec_dev = of_find_i2c_device_by_node(codec_np);
	if (!codec_dev) {
		dev_err(&pdev->dev, "failed to find codec platform device\n");
		return -EPROBE_DEFER;
	}

	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
	if (!data) {
		ret = -ENOMEM;
		goto fail;
	}

	data->codec_clk = clk_get(&codec_dev->dev, NULL);
	if (IS_ERR(data->codec_clk)) {
		ret = PTR_ERR(data->codec_clk);
		goto fail;
	}

	data->clk_frequency = clk_get_rate(data->codec_clk);

	data->dai.name = "HiFi";
	data->dai.stream_name = "HiFi";
	data->dai.codec_dai_name = "sgtl5000";
	data->dai.codec_of_node = codec_np;
	data->dai.cpu_of_node = ssi_np;
	data->dai.platform_of_node = ssi_np;
	data->dai.init = &imx_sgtl5000_dai_init;
	data->dai.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
			    SND_SOC_DAIFMT_CBM_CFM;

	data->card.dev = &pdev->dev;
	ret = snd_soc_of_parse_card_name(&data->card, "model");
	if (ret)
		goto fail;
	ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing");
	if (ret)
		goto fail;
	data->card.num_links = 1;
	data->card.owner = THIS_MODULE;
	data->card.dai_link = &data->dai;
	data->card.dapm_widgets = imx_sgtl5000_dapm_widgets;
	data->card.num_dapm_widgets = ARRAY_SIZE(imx_sgtl5000_dapm_widgets);

	platform_set_drvdata(pdev, &data->card);
	snd_soc_card_set_drvdata(&data->card, data);

	ret = devm_snd_soc_register_card(&pdev->dev, &data->card);
	if (ret) {
		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
		goto fail;
	}

	of_node_put(ssi_np);
	of_node_put(codec_np);

	return 0;

fail:
	if (data && !IS_ERR(data->codec_clk))
		clk_put(data->codec_clk);
	of_node_put(ssi_np);
	of_node_put(codec_np);

	return ret;
}

Contributors
Person Tokens Prop Commits CommitProp
shawn guo shawn guo 506 75.52% 5 31.25%
richard zhao richard zhao 99 14.78% 2 12.50%
philipp zabel philipp zabel 20 2.99% 2 12.50%
fabio estevam fabio estevam 16 2.39% 2 12.50%
wei yongjun wei yongjun 11 1.64% 1 6.25%
lothar wassmann lothar wassmann 8 1.19% 1 6.25%
sachin kamat sachin kamat 6 0.90% 1 6.25%
arnaud patard arnaud patard 2 0.30% 1 6.25%
julia lawall julia lawall 2 0.30% 1 6.25%
Total 670 100.00% 16 100.00%



static int imx_sgtl5000_remove(struct platform_device *pdev)
{
	struct snd_soc_card *card = platform_get_drvdata(pdev);
	struct imx_sgtl5000_data *data = snd_soc_card_get_drvdata(card);

	clk_put(data->codec_clk);

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
shawn guo shawn guo 34 82.93% 2 66.67%
philipp zabel philipp zabel 7 17.07% 1 33.33%
Total 41 100.00% 3 100.00%


static const struct of_device_id imx_sgtl5000_dt_ids[] = {
	{ .compatible = "fsl,imx-audio-sgtl5000", },
	{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, imx_sgtl5000_dt_ids);


static struct platform_driver imx_sgtl5000_driver = {
	.driver = {
		.name = "imx-sgtl5000",
		.pm = &snd_soc_pm_ops,
		.of_match_table = imx_sgtl5000_dt_ids,
        },
	.probe = imx_sgtl5000_probe,
	.remove = imx_sgtl5000_remove,
};

module_platform_driver(imx_sgtl5000_driver);

MODULE_AUTHOR("Shawn Guo <shawn.guo@linaro.org>");
MODULE_DESCRIPTION("Freescale i.MX SGTL5000 ASoC machine driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:imx-sgtl5000");
Overall Contributors
Person Tokens Prop Commits CommitProp
shawn guo shawn guo 788 80.33% 5 26.32%
richard zhao richard zhao 109 11.11% 2 10.53%
philipp zabel philipp zabel 27 2.75% 2 10.53%
fabio estevam fabio estevam 21 2.14% 3 15.79%
wei yongjun wei yongjun 11 1.12% 1 5.26%
lothar wassmann lothar wassmann 8 0.82% 1 5.26%
nicolin chen nicolin chen 6 0.61% 1 5.26%
sachin kamat sachin kamat 6 0.61% 1 5.26%
julia lawall julia lawall 2 0.20% 1 5.26%
arnaud patard arnaud patard 2 0.20% 1 5.26%
wolfram sang wolfram sang 1 0.10% 1 5.26%
Total 981 100.00% 19 100.00%
  Directory: sound/soc/fsl

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
	Person	Tokens	Prop	Commits	CommitProp
shawn guo	shawn guo	73	100.00%	2	100.00%
	Total	73	100.00%	2	100.00%
cregit-Linux how code gets into the kernel

Release 4.7 sound/soc/fsl/imx-sgtl5000.c

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