1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * snappercl15.c -- SoC audio for Bluewater Systems Snapper CL15 module
5 * Copyright (C) 2008 Bluewater Systems Ltd
9 #include <linux/platform_device.h>
10 #include <linux/module.h>
11 #include <linux/soc/cirrus/ep93xx.h>
12 #include <sound/core.h>
13 #include <sound/pcm.h>
14 #include <sound/soc.h>
16 #include <asm/mach-types.h>
18 #include "../codecs/tlv320aic23.h"
20 #define CODEC_CLOCK 5644800
22 static int snappercl15_hw_params(struct snd_pcm_substream
*substream
,
23 struct snd_pcm_hw_params
*params
)
25 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
26 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
27 struct snd_soc_dai
*cpu_dai
= rtd
->cpu_dai
;
30 err
= snd_soc_dai_set_sysclk(codec_dai
, 0, CODEC_CLOCK
,
35 err
= snd_soc_dai_set_sysclk(cpu_dai
, 0, CODEC_CLOCK
,
43 static const struct snd_soc_ops snappercl15_ops
= {
44 .hw_params
= snappercl15_hw_params
,
47 static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets
[] = {
48 SND_SOC_DAPM_HP("Headphone Jack", NULL
),
49 SND_SOC_DAPM_LINE("Line In", NULL
),
50 SND_SOC_DAPM_MIC("Mic Jack", NULL
),
53 static const struct snd_soc_dapm_route audio_map
[] = {
54 {"Headphone Jack", NULL
, "LHPOUT"},
55 {"Headphone Jack", NULL
, "RHPOUT"},
57 {"LLINEIN", NULL
, "Line In"},
58 {"RLINEIN", NULL
, "Line In"},
60 {"MICIN", NULL
, "Mic Jack"},
63 static struct snd_soc_dai_link snappercl15_dai
= {
64 .name
= "tlv320aic23",
65 .stream_name
= "AIC23",
66 .cpu_dai_name
= "ep93xx-i2s",
67 .codec_dai_name
= "tlv320aic23-hifi",
68 .codec_name
= "tlv320aic23-codec.0-001a",
69 .platform_name
= "ep93xx-i2s",
70 .dai_fmt
= SND_SOC_DAIFMT_I2S
| SND_SOC_DAIFMT_NB_NF
|
71 SND_SOC_DAIFMT_CBS_CFS
,
72 .ops
= &snappercl15_ops
,
75 static struct snd_soc_card snd_soc_snappercl15
= {
76 .name
= "Snapper CL15",
78 .dai_link
= &snappercl15_dai
,
81 .dapm_widgets
= tlv320aic23_dapm_widgets
,
82 .num_dapm_widgets
= ARRAY_SIZE(tlv320aic23_dapm_widgets
),
83 .dapm_routes
= audio_map
,
84 .num_dapm_routes
= ARRAY_SIZE(audio_map
),
87 static int snappercl15_probe(struct platform_device
*pdev
)
89 struct snd_soc_card
*card
= &snd_soc_snappercl15
;
92 ret
= ep93xx_i2s_acquire();
96 card
->dev
= &pdev
->dev
;
98 ret
= snd_soc_register_card(card
);
100 dev_err(&pdev
->dev
, "snd_soc_register_card() failed: %d\n",
102 ep93xx_i2s_release();
108 static int snappercl15_remove(struct platform_device
*pdev
)
110 struct snd_soc_card
*card
= platform_get_drvdata(pdev
);
112 snd_soc_unregister_card(card
);
113 ep93xx_i2s_release();
118 static struct platform_driver snappercl15_driver
= {
120 .name
= "snappercl15-audio",
122 .probe
= snappercl15_probe
,
123 .remove
= snappercl15_remove
,
126 module_platform_driver(snappercl15_driver
);
128 MODULE_AUTHOR("Ryan Mallon");
129 MODULE_DESCRIPTION("ALSA SoC Snapper CL15");
130 MODULE_LICENSE("GPL");
131 MODULE_ALIAS("platform:snappercl15-audio");