[linux-2.6-block.git] / sound / soc / fsl / eukrea-tlv320.c

// SPDX-License-Identifier: GPL-2.0+
//
// eukrea-tlv320.c  --  SoC audio for eukrea_cpuimxXX in I2S mode
//
// Copyright 2010 Eric Bénard, Eukréa Electromatique <eric@eukrea.com>
//
// based on sound/soc/s3c24xx/s3c24xx_simtec_tlv320aic23.c
// which is Copyright 2009 Simtec Electronics
// and on sound/soc/imx/phycore-ac97.c which is
// Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>

#include <linux/errno.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <asm/mach-types.h>

#include "../codecs/tlv320aic23.h"
#include "imx-ssi.h"
#include "imx-audmux.h"

#define CODEC_CLOCK 12000000

static int eukrea_tlv320_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;
	int ret;

	ret = snd_soc_dai_set_sysclk(codec_dai, 0,
				     CODEC_CLOCK, SND_SOC_CLOCK_OUT);
	if (ret) {
		dev_err(cpu_dai->dev,
			"Failed to set the codec sysclk.\n");
		return ret;
	}

	snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 0);

	ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
				SND_SOC_CLOCK_IN);
	/* fsl_ssi lacks the set_sysclk ops */
	if (ret && ret != -EINVAL) {
		dev_err(cpu_dai->dev,
			"Can't set the IMX_SSP_SYS_CLK CPU system clock.\n");
		return ret;
	}

	return 0;
}

static const struct snd_soc_ops eukrea_tlv320_snd_ops = {
	.hw_params	= eukrea_tlv320_hw_params,
};

static struct snd_soc_dai_link eukrea_tlv320_dai = {
	.name		= "tlv320aic23",
	.stream_name	= "TLV320AIC23",
	.codec_dai_name	= "tlv320aic23-hifi",
	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
			  SND_SOC_DAIFMT_CBM_CFM,
	.ops		= &eukrea_tlv320_snd_ops,
};

static struct snd_soc_card eukrea_tlv320 = {
	.owner		= THIS_MODULE,
	.dai_link	= &eukrea_tlv320_dai,
	.num_links	= 1,
};

static int eukrea_tlv320_probe(struct platform_device *pdev)
{
	int ret;
	int int_port = 0, ext_port;
	struct device_node *np = pdev->dev.of_node;
	struct device_node *ssi_np = NULL, *codec_np = NULL;

	eukrea_tlv320.dev = &pdev->dev;
	if (np) {
		ret = snd_soc_of_parse_card_name(&eukrea_tlv320,
						 "eukrea,model");
		if (ret) {
			dev_err(&pdev->dev,
				"eukrea,model node missing or invalid.\n");
			goto err;
		}

		ssi_np = of_parse_phandle(pdev->dev.of_node,
					  "ssi-controller", 0);
		if (!ssi_np) {
			dev_err(&pdev->dev,
				"ssi-controller missing or invalid.\n");
			ret = -ENODEV;
			goto err;
		}

		codec_np = of_parse_phandle(ssi_np, "codec-handle", 0);
		if (codec_np)
			eukrea_tlv320_dai.codec_of_node = codec_np;
		else
			dev_err(&pdev->dev, "codec-handle node missing or invalid.\n");

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

		/*
		 * The port numbering in the hardware manual starts at 1, while
		 * the audmux API expects it starts at 0.
		 */
		int_port--;
		ext_port--;

		eukrea_tlv320_dai.cpu_of_node = ssi_np;
		eukrea_tlv320_dai.platform_of_node = ssi_np;
	} else {
		eukrea_tlv320_dai.cpu_dai_name = "imx-ssi.0";
		eukrea_tlv320_dai.platform_name = "imx-ssi.0";
		eukrea_tlv320_dai.codec_name = "tlv320aic23-codec.0-001a";
		eukrea_tlv320.name = "cpuimx-audio";
	}

	if (machine_is_eukrea_cpuimx27() ||
	    of_find_compatible_node(NULL, NULL, "fsl,imx21-audmux")) {
		imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
			IMX_AUDMUX_V1_PCR_SYN |
			IMX_AUDMUX_V1_PCR_TFSDIR |
			IMX_AUDMUX_V1_PCR_TCLKDIR |
			IMX_AUDMUX_V1_PCR_RFSDIR |
			IMX_AUDMUX_V1_PCR_RCLKDIR |
			IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
			IMX_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
			IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4)
		);
		imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4,
			IMX_AUDMUX_V1_PCR_SYN |
			IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
		);
	} else if (machine_is_eukrea_cpuimx25sd() ||
		   machine_is_eukrea_cpuimx35sd() ||
		   machine_is_eukrea_cpuimx51sd() ||
		   of_find_compatible_node(NULL, NULL, "fsl,imx31-audmux")) {
		if (!np)
			ext_port = machine_is_eukrea_cpuimx25sd() ?
				4 : 3;

		imx_audmux_v2_configure_port(int_port,
			IMX_AUDMUX_V2_PTCR_SYN |
			IMX_AUDMUX_V2_PTCR_TFSDIR |
			IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
			IMX_AUDMUX_V2_PTCR_TCLKDIR |
			IMX_AUDMUX_V2_PTCR_TCSEL(ext_port),
			IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port)
		);
		imx_audmux_v2_configure_port(ext_port,
			IMX_AUDMUX_V2_PTCR_SYN,
			IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)
		);
	} else {
		if (np) {
			/* The eukrea,asoc-tlv320 driver was explicitly
			 * requested (through the device tree).
			 */
			dev_err(&pdev->dev,
				"Missing or invalid audmux DT node.\n");
			return -ENODEV;
		} else {
			/* Return happy.
			 * We might run on a totally different machine.
			 */
			return 0;
		}
	}

	ret = snd_soc_register_card(&eukrea_tlv320);
err:
	if (ret)
		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
	of_node_put(ssi_np);

	return ret;
}

static int eukrea_tlv320_remove(struct platform_device *pdev)
{
	snd_soc_unregister_card(&eukrea_tlv320);

	return 0;
}

static const struct of_device_id imx_tlv320_dt_ids[] = {
	{ .compatible = "eukrea,asoc-tlv320"},
	{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, imx_tlv320_dt_ids);

static struct platform_driver eukrea_tlv320_driver = {
	.driver = {
		.name = "eukrea_tlv320",
		.of_match_table = imx_tlv320_dt_ids,
	},
	.probe = eukrea_tlv320_probe,
	.remove = eukrea_tlv320_remove,
};

module_platform_driver(eukrea_tlv320_driver);

MODULE_AUTHOR("Eric Bénard <eric@eukrea.com>");
MODULE_DESCRIPTION("CPUIMX ALSA SoC driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:eukrea_tlv320");
Commit	Line	Data
ecf4630f AD	1	// SPDX-License-Identifier: GPL-2.0+
	2	//
	3	// eukrea-tlv320.c -- SoC audio for eukrea_cpuimxXX in I2S mode
	4	//
	5	// Copyright 2010 Eric Bénard, Eukréa Electromatique <eric@eukrea.com>
	6	//
	7	// based on sound/soc/s3c24xx/s3c24xx_simtec_tlv320aic23.c
	8	// which is Copyright 2009 Simtec Electronics
	9	// and on sound/soc/imx/phycore-ac97.c which is
	10	// Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
91157888	11
66f23290	12	#include <linux/errno.h>
91157888 EB	13	#include <linux/module.h>
91157888 EB	14	#include <linux/moduleparam.h>
66f23290 DC	15	#include <linux/of.h>
66f23290 DC	16	#include <linux/of_platform.h>
91157888 EB	17	#include <linux/device.h>
	18	#include <linux/i2c.h>
	19	#include <sound/core.h>
	20	#include <sound/pcm.h>
	21	#include <sound/soc.h>
91157888 EB	22	#include <asm/mach-types.h>
	23
	24	#include "../codecs/tlv320aic23.h"
	25	#include "imx-ssi.h"
3c77c29c	26	#include "imx-audmux.h"
91157888 EB	27
	28	#define CODEC_CLOCK 12000000
	29
	30	static int eukrea_tlv320_hw_params(struct snd_pcm_substream *substream,
	31	struct snd_pcm_hw_params *params)
	32	{
	33	struct snd_soc_pcm_runtime *rtd = substream->private_data;
add330ec SH	34	struct snd_soc_dai *codec_dai = rtd->codec_dai;
add330ec SH	35	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
91157888 EB	36	int ret;
91157888 EB	37
91157888 EB	38	ret = snd_soc_dai_set_sysclk(codec_dai, 0,
	39	CODEC_CLOCK, SND_SOC_CLOCK_OUT);
	40	if (ret) {
154bab12 DC	41	dev_err(cpu_dai->dev,
154bab12 DC	42	"Failed to set the codec sysclk.\n");
91157888 EB	43	return ret;
91157888 EB	44	}
66f23290	45
d0077aaf	46	snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 0);
91157888 EB	47
	48	ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
	49	SND_SOC_CLOCK_IN);
66f23290 DC	50	/* fsl_ssi lacks the set_sysclk ops */
66f23290 DC	51	if (ret && ret != -EINVAL) {
154bab12 DC	52	dev_err(cpu_dai->dev,
154bab12 DC	53	"Can't set the IMX_SSP_SYS_CLK CPU system clock.\n");
91157888 EB	54	return ret;
	55	}
	56
	57	return 0;
	58	}
	59
5ace37bd	60	static const struct snd_soc_ops eukrea_tlv320_snd_ops = {
91157888 EB	61	.hw_params = eukrea_tlv320_hw_params,
	62	};
	63
	64	static struct snd_soc_dai_link eukrea_tlv320_dai = {
	65	.name = "tlv320aic23",
	66	.stream_name = "TLV320AIC23",
add330ec	67	.codec_dai_name = "tlv320aic23-hifi",
4de59dbd LPC	68	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
4de59dbd LPC	69	SND_SOC_DAIFMT_CBM_CFM,
91157888 EB	70	.ops = &eukrea_tlv320_snd_ops,
	71	};
	72
	73	static struct snd_soc_card eukrea_tlv320 = {
6aff8ccb	74	.owner = THIS_MODULE,
91157888 EB	75	.dai_link = &eukrea_tlv320_dai,
	76	.num_links = 1,
	77	};
	78
a0a3d518	79	static int eukrea_tlv320_probe(struct platform_device *pdev)
91157888 EB	80	{
91157888 EB	81	int ret;
60282ede	82	int int_port = 0, ext_port;
66f23290	83	struct device_node *np = pdev->dev.of_node;
077661b6	84	struct device_node ssi_np = NULL, codec_np = NULL;
60282ede	85
66f23290 DC	86	eukrea_tlv320.dev = &pdev->dev;
	87	if (np) {
	88	ret = snd_soc_of_parse_card_name(&eukrea_tlv320,
	89	"eukrea,model");
	90	if (ret) {
	91	dev_err(&pdev->dev,
	92	"eukrea,model node missing or invalid.\n");
	93	goto err;
	94	}
	95
	96	ssi_np = of_parse_phandle(pdev->dev.of_node,
	97	"ssi-controller", 0);
	98	if (!ssi_np) {
	99	dev_err(&pdev->dev,
	100	"ssi-controller missing or invalid.\n");
	101	ret = -ENODEV;
	102	goto err;
	103	}
	104
	105	codec_np = of_parse_phandle(ssi_np, "codec-handle", 0);
	106	if (codec_np)
	107	eukrea_tlv320_dai.codec_of_node = codec_np;
	108	else
	109	dev_err(&pdev->dev, "codec-handle node missing or invalid.\n");
	110
	111	ret = of_property_read_u32(np, "fsl,mux-int-port", &int_port);
	112	if (ret) {
	113	dev_err(&pdev->dev,
	114	"fsl,mux-int-port node missing or invalid.\n");
b820d52e	115	goto err;
66f23290 DC	116	}
	117	ret = of_property_read_u32(np, "fsl,mux-ext-port", &ext_port);
	118	if (ret) {
	119	dev_err(&pdev->dev,
	120	"fsl,mux-ext-port node missing or invalid.\n");
b820d52e	121	goto err;
66f23290 DC	122	}
	123
	124	/*
	125	* The port numbering in the hardware manual starts at 1, while
	126	* the audmux API expects it starts at 0.
	127	*/
	128	int_port--;
	129	ext_port--;
	130
	131	eukrea_tlv320_dai.cpu_of_node = ssi_np;
	132	eukrea_tlv320_dai.platform_of_node = ssi_np;
	133	} else {
	134	eukrea_tlv320_dai.cpu_dai_name = "imx-ssi.0";
	135	eukrea_tlv320_dai.platform_name = "imx-ssi.0";
	136	eukrea_tlv320_dai.codec_name = "tlv320aic23-codec.0-001a";
	137	eukrea_tlv320.name = "cpuimx-audio";
	138	}
	139
	140	if (machine_is_eukrea_cpuimx27() \|\|
	141	of_find_compatible_node(NULL, NULL, "fsl,imx21-audmux")) {
af4872fb SG	142	imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
	143	IMX_AUDMUX_V1_PCR_SYN \|
	144	IMX_AUDMUX_V1_PCR_TFSDIR \|
	145	IMX_AUDMUX_V1_PCR_TCLKDIR \|
	146	IMX_AUDMUX_V1_PCR_RFSDIR \|
	147	IMX_AUDMUX_V1_PCR_RCLKDIR \|
	148	IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) \|
	149	IMX_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) \|
	150	IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4)
60282ede	151	);
af4872fb SG	152	imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4,
	153	IMX_AUDMUX_V1_PCR_SYN \|
	154	IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
60282ede SG	155	);
	156	} else if (machine_is_eukrea_cpuimx25sd() \|\|
	157	machine_is_eukrea_cpuimx35sd() \|\|
66f23290 DC	158	machine_is_eukrea_cpuimx51sd() \|\|
	159	of_find_compatible_node(NULL, NULL, "fsl,imx31-audmux")) {
	160	if (!np)
	161	ext_port = machine_is_eukrea_cpuimx25sd() ?
	162	4 : 3;
	163
af4872fb SG	164	imx_audmux_v2_configure_port(int_port,
	165	IMX_AUDMUX_V2_PTCR_SYN \|
	166	IMX_AUDMUX_V2_PTCR_TFSDIR \|
	167	IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) \|
	168	IMX_AUDMUX_V2_PTCR_TCLKDIR \|
	169	IMX_AUDMUX_V2_PTCR_TCSEL(ext_port),
	170	IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port)
60282ede	171	);
af4872fb SG	172	imx_audmux_v2_configure_port(ext_port,
	173	IMX_AUDMUX_V2_PTCR_SYN,
	174	IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)
60282ede SG	175	);
60282ede SG	176	} else {
66f23290	177	if (np) {
dcfcf2c2	178	/* The eukrea,asoc-tlv320 driver was explicitly
66f23290 DC	179	* requested (through the device tree).
	180	*/
	181	dev_err(&pdev->dev,
	182	"Missing or invalid audmux DT node.\n");
	183	return -ENODEV;
	184	} else {
	185	/* Return happy.
	186	* We might run on a totally different machine.
	187	*/
	188	return 0;
	189	}
60282ede	190	}
91157888	191
da75c924	192	ret = snd_soc_register_card(&eukrea_tlv320);
66f23290	193	err:
da75c924 FE	194	if (ret)
da75c924 FE	195	dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
89dea487	196	of_node_put(ssi_np);
91157888 EB	197
	198	return ret;
	199	}
	200
a0a3d518	201	static int eukrea_tlv320_remove(struct platform_device *pdev)
91157888	202	{
da75c924 FE	203	snd_soc_unregister_card(&eukrea_tlv320);
	204
	205	return 0;
91157888 EB	206	}
91157888 EB	207
66f23290 DC	208	static const struct of_device_id imx_tlv320_dt_ids[] = {
	209	{ .compatible = "eukrea,asoc-tlv320"},
	210	{ /* sentinel */ }
	211	};
	212	MODULE_DEVICE_TABLE(of, imx_tlv320_dt_ids);
	213
da75c924 FE	214	static struct platform_driver eukrea_tlv320_driver = {
	215	.driver = {
	216	.name = "eukrea_tlv320",
66f23290	217	.of_match_table = imx_tlv320_dt_ids,
da75c924 FE	218	},
da75c924 FE	219	.probe = eukrea_tlv320_probe,
154bab12 DC	220	.remove = eukrea_tlv320_remove,
154bab12 DC	221	};
da75c924 FE	222
da75c924 FE	223	module_platform_driver(eukrea_tlv320_driver);
91157888 EB	224
	225	MODULE_AUTHOR("Eric Bénard <eric@eukrea.com>");
	226	MODULE_DESCRIPTION("CPUIMX ALSA SoC driver");
	227	MODULE_LICENSE("GPL");
da75c924	228	MODULE_ALIAS("platform:eukrea_tlv320");