[linux-2.6-block.git] / sound / soc / fsl / imx-sgtl5000.c

// SPDX-License-Identifier: GPL-2.0+
//
// Copyright 2012 Freescale Semiconductor, Inc.
// Copyright 2012 Linaro Ltd.

#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;
}

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

	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) {
		if (ret != -EPROBE_DEFER)
			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;
}

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;
}

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");
Commit	Line	Data
6b24e03e FE	1	// SPDX-License-Identifier: GPL-2.0+
	2	//
	3	// Copyright 2012 Freescale Semiconductor, Inc.
	4	// Copyright 2012 Linaro Ltd.
c448303e SG	5
	6	#include <linux/module.h>
	7	#include <linux/of.h>
	8	#include <linux/of_platform.h>
687b81d0	9	#include <linux/i2c.h>
81e8e492	10	#include <linux/clk.h>
c448303e SG	11	#include <sound/soc.h>
	12
	13	#include "../codecs/sgtl5000.h"
	14	#include "imx-audmux.h"
	15
	16	#define DAI_NAME_SIZE 32
	17
	18	struct imx_sgtl5000_data {
	19	struct snd_soc_dai_link dai;
	20	struct snd_soc_card card;
	21	char codec_dai_name[DAI_NAME_SIZE];
	22	char platform_name[DAI_NAME_SIZE];
81e8e492	23	struct clk *codec_clk;
c448303e SG	24	unsigned int clk_frequency;
	25	};
	26
	27	static int imx_sgtl5000_dai_init(struct snd_soc_pcm_runtime *rtd)
	28	{
47cf84e1	29	struct imx_sgtl5000_data *data = snd_soc_card_get_drvdata(rtd->card);
c448303e SG	30	struct device *dev = rtd->card->dev;
	31	int ret;
	32
	33	ret = snd_soc_dai_set_sysclk(rtd->codec_dai, SGTL5000_SYSCLK,
	34	data->clk_frequency, SND_SOC_CLOCK_IN);
	35	if (ret) {
	36	dev_err(dev, "could not set codec driver clock params\n");
	37	return ret;
	38	}
	39
	40	return 0;
	41	}
	42
172b4c5c SG	43	static const struct snd_soc_dapm_widget imx_sgtl5000_dapm_widgets[] = {
	44	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	45	SND_SOC_DAPM_LINE("Line In Jack", NULL),
	46	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	47	SND_SOC_DAPM_SPK("Line Out Jack", NULL),
	48	SND_SOC_DAPM_SPK("Ext Spk", NULL),
	49	};
	50
a0a3d518	51	static int imx_sgtl5000_probe(struct platform_device *pdev)
c448303e SG	52	{
	53	struct device_node *np = pdev->dev.of_node;
	54	struct device_node ssi_np, codec_np;
	55	struct platform_device *ssi_pdev;
81e8e492	56	struct i2c_client *codec_dev;
50d4a790	57	struct imx_sgtl5000_data *data = NULL;
c448303e SG	58	int int_port, ext_port;
	59	int ret;
	60
	61	ret = of_property_read_u32(np, "mux-int-port", &int_port);
	62	if (ret) {
	63	dev_err(&pdev->dev, "mux-int-port missing or invalid\n");
	64	return ret;
	65	}
	66	ret = of_property_read_u32(np, "mux-ext-port", &ext_port);
	67	if (ret) {
	68	dev_err(&pdev->dev, "mux-ext-port missing or invalid\n");
	69	return ret;
	70	}
	71
	72	/*
	73	* The port numbering in the hardware manual starts at 1, while
	74	* the audmux API expects it starts at 0.
	75	*/
	76	int_port--;
	77	ext_port--;
	78	ret = imx_audmux_v2_configure_port(int_port,
	79	IMX_AUDMUX_V2_PTCR_SYN \|
	80	IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) \|
	81	IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) \|
	82	IMX_AUDMUX_V2_PTCR_TFSDIR \|
	83	IMX_AUDMUX_V2_PTCR_TCLKDIR,
	84	IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port));
	85	if (ret) {
	86	dev_err(&pdev->dev, "audmux internal port setup failed\n");
	87	return ret;
	88	}
db8b624d	89	ret = imx_audmux_v2_configure_port(ext_port,
ef3207c5	90	IMX_AUDMUX_V2_PTCR_SYN,
c448303e SG	91	IMX_AUDMUX_V2_PDCR_RXDSEL(int_port));
	92	if (ret) {
	93	dev_err(&pdev->dev, "audmux external port setup failed\n");
	94	return ret;
	95	}
	96
	97	ssi_np = of_parse_phandle(pdev->dev.of_node, "ssi-controller", 0);
	98	codec_np = of_parse_phandle(pdev->dev.of_node, "audio-codec", 0);
	99	if (!ssi_np \|\| !codec_np) {
	100	dev_err(&pdev->dev, "phandle missing or invalid\n");
717071dc RZ	101	ret = -EINVAL;
717071dc RZ	102	goto fail;
c448303e SG	103	}
	104
	105	ssi_pdev = of_find_device_by_node(ssi_np);
	106	if (!ssi_pdev) {
691beb02	107	dev_dbg(&pdev->dev, "failed to find SSI platform device\n");
28e5ca73	108	ret = -EPROBE_DEFER;
717071dc	109	goto fail;
c448303e	110	}
8fa857da	111	put_device(&ssi_pdev->dev);
81e8e492 RZ	112	codec_dev = of_find_i2c_device_by_node(codec_np);
81e8e492 RZ	113	if (!codec_dev) {
691beb02	114	dev_dbg(&pdev->dev, "failed to find codec platform device\n");
d9866572 SA	115	ret = -EPROBE_DEFER;
d9866572 SA	116	goto fail;
81e8e492	117	}
c448303e SG	118
c448303e SG	119	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
717071dc RZ	120	if (!data) {
	121	ret = -ENOMEM;
	122	goto fail;
	123	}
c448303e	124
a8b22c1c	125	data->codec_clk = clk_get(&codec_dev->dev, NULL);
f1269ae4 WY	126	if (IS_ERR(data->codec_clk)) {
f1269ae4 WY	127	ret = PTR_ERR(data->codec_clk);
9e13f345	128	goto fail;
f1269ae4	129	}
9e13f345 FE	130
9e13f345 FE	131	data->clk_frequency = clk_get_rate(data->codec_clk);
c448303e SG	132
	133	data->dai.name = "HiFi";
	134	data->dai.stream_name = "HiFi";
	135	data->dai.codec_dai_name = "sgtl5000";
	136	data->dai.codec_of_node = codec_np;
fa659d83	137	data->dai.cpu_of_node = ssi_np;
bd41bc96	138	data->dai.platform_of_node = ssi_np;
c448303e SG	139	data->dai.init = &imx_sgtl5000_dai_init;
	140	data->dai.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
	141	SND_SOC_DAIFMT_CBM_CFM;
	142
	143	data->card.dev = &pdev->dev;
	144	ret = snd_soc_of_parse_card_name(&data->card, "model");
172b4c5c	145	if (ret)
9e13f345	146	goto fail;
172b4c5c	147	ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing");
c448303e	148	if (ret)
9e13f345	149	goto fail;
c448303e	150	data->card.num_links = 1;
29df4306	151	data->card.owner = THIS_MODULE;
c448303e	152	data->card.dai_link = &data->dai;
172b4c5c SG	153	data->card.dapm_widgets = imx_sgtl5000_dapm_widgets;
172b4c5c SG	154	data->card.num_dapm_widgets = ARRAY_SIZE(imx_sgtl5000_dapm_widgets);
c448303e	155
47cf84e1 SG	156	platform_set_drvdata(pdev, &data->card);
	157	snd_soc_card_set_drvdata(&data->card, data);
	158
01984a47	159	ret = devm_snd_soc_register_card(&pdev->dev, &data->card);
c448303e	160	if (ret) {
e379ee96 SA	161	if (ret != -EPROBE_DEFER)
	162	dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
	163	ret);
9e13f345	164	goto fail;
c448303e SG	165	}
c448303e SG	166
2fc059f2 FE	167	of_node_put(ssi_np);
	168	of_node_put(codec_np);
	169
	170	return 0;
	171
717071dc	172	fail:
50d4a790	173	if (data && !IS_ERR(data->codec_clk))
a8b22c1c	174	clk_put(data->codec_clk);
7e3bc3c1 FE	175	of_node_put(ssi_np);
7e3bc3c1 FE	176	of_node_put(codec_np);
c448303e	177
717071dc	178	return ret;
c448303e SG	179	}
c448303e SG	180
a0a3d518	181	static int imx_sgtl5000_remove(struct platform_device *pdev)
c448303e	182	{
47cf84e1 SG	183	struct snd_soc_card *card = platform_get_drvdata(pdev);
47cf84e1 SG	184	struct imx_sgtl5000_data *data = snd_soc_card_get_drvdata(card);
c448303e	185
a8b22c1c	186	clk_put(data->codec_clk);
c448303e SG	187
	188	return 0;
	189	}
	190
	191	static const struct of_device_id imx_sgtl5000_dt_ids[] = {
	192	{ .compatible = "fsl,imx-audio-sgtl5000", },
	193	{ /* sentinel */ }
	194	};
	195	MODULE_DEVICE_TABLE(of, imx_sgtl5000_dt_ids);
	196
	197	static struct platform_driver imx_sgtl5000_driver = {
	198	.driver = {
	199	.name = "imx-sgtl5000",
1abe729f	200	.pm = &snd_soc_pm_ops,
c448303e SG	201	.of_match_table = imx_sgtl5000_dt_ids,
	202	},
	203	.probe = imx_sgtl5000_probe,
4fa8dbc1	204	.remove = imx_sgtl5000_remove,
c448303e SG	205	};
	206	module_platform_driver(imx_sgtl5000_driver);
	207
	208	MODULE_AUTHOR("Shawn Guo <shawn.guo@linaro.org>");
	209	MODULE_DESCRIPTION("Freescale i.MX SGTL5000 ASoC machine driver");
	210	MODULE_LICENSE("GPL v2");
	211	MODULE_ALIAS("platform:imx-sgtl5000");