1 // SPDX-License-Identifier: GPL-2.0-or-later <<
2 /* 1 /*
3 * ads117x.c -- Driver for ads1174/8 ADC chi 2 * ads117x.c -- Driver for ads1174/8 ADC chips
4 * 3 *
5 * Copyright 2009 ShotSpotter Inc. 4 * Copyright 2009 ShotSpotter Inc.
6 * Author: Graeme Gregory <gg@slimlogic.co.uk> 5 * Author: Graeme Gregory <gg@slimlogic.co.uk>
>> 6 *
>> 7 * This program is free software; you can redistribute it and/or modify it
>> 8 * under the terms of the GNU General Public License as published by the
>> 9 * Free Software Foundation; either version 2 of the License, or (at your
>> 10 * option) any later version.
7 */ 11 */
8 12
9 #include <linux/kernel.h> 13 #include <linux/kernel.h>
10 #include <linux/slab.h> 14 #include <linux/slab.h>
11 #include <linux/init.h> 15 #include <linux/init.h>
12 #include <linux/device.h> 16 #include <linux/device.h>
13 #include <linux/module.h> 17 #include <linux/module.h>
14 #include <sound/core.h> 18 #include <sound/core.h>
15 #include <sound/pcm.h> 19 #include <sound/pcm.h>
16 #include <sound/initval.h> 20 #include <sound/initval.h>
17 #include <sound/soc.h> 21 #include <sound/soc.h>
18 22
19 #include <linux/of.h> 23 #include <linux/of.h>
20 24
21 #define ADS117X_RATES (SNDRV_PCM_RATE_8000_480 25 #define ADS117X_RATES (SNDRV_PCM_RATE_8000_48000)
22 #define ADS117X_FORMATS (SNDRV_PCM_FMTBIT_S16_ 26 #define ADS117X_FORMATS (SNDRV_PCM_FMTBIT_S16_LE)
23 27
24 static const struct snd_soc_dapm_widget ads117 28 static const struct snd_soc_dapm_widget ads117x_dapm_widgets[] = {
25 SND_SOC_DAPM_INPUT("Input1"), 29 SND_SOC_DAPM_INPUT("Input1"),
26 SND_SOC_DAPM_INPUT("Input2"), 30 SND_SOC_DAPM_INPUT("Input2"),
27 SND_SOC_DAPM_INPUT("Input3"), 31 SND_SOC_DAPM_INPUT("Input3"),
28 SND_SOC_DAPM_INPUT("Input4"), 32 SND_SOC_DAPM_INPUT("Input4"),
29 SND_SOC_DAPM_INPUT("Input5"), 33 SND_SOC_DAPM_INPUT("Input5"),
30 SND_SOC_DAPM_INPUT("Input6"), 34 SND_SOC_DAPM_INPUT("Input6"),
31 SND_SOC_DAPM_INPUT("Input7"), 35 SND_SOC_DAPM_INPUT("Input7"),
32 SND_SOC_DAPM_INPUT("Input8"), 36 SND_SOC_DAPM_INPUT("Input8"),
33 }; 37 };
34 38
35 static const struct snd_soc_dapm_route ads117x 39 static const struct snd_soc_dapm_route ads117x_dapm_routes[] = {
36 { "Capture", NULL, "Input1" }, 40 { "Capture", NULL, "Input1" },
37 { "Capture", NULL, "Input2" }, 41 { "Capture", NULL, "Input2" },
38 { "Capture", NULL, "Input3" }, 42 { "Capture", NULL, "Input3" },
39 { "Capture", NULL, "Input4" }, 43 { "Capture", NULL, "Input4" },
40 { "Capture", NULL, "Input5" }, 44 { "Capture", NULL, "Input5" },
41 { "Capture", NULL, "Input6" }, 45 { "Capture", NULL, "Input6" },
42 { "Capture", NULL, "Input7" }, 46 { "Capture", NULL, "Input7" },
43 { "Capture", NULL, "Input8" }, 47 { "Capture", NULL, "Input8" },
44 }; 48 };
45 49
46 static struct snd_soc_dai_driver ads117x_dai = 50 static struct snd_soc_dai_driver ads117x_dai = {
47 /* ADC */ 51 /* ADC */
48 .name = "ads117x-hifi", 52 .name = "ads117x-hifi",
49 .capture = { 53 .capture = {
50 .stream_name = "Capture", 54 .stream_name = "Capture",
51 .channels_min = 1, 55 .channels_min = 1,
52 .channels_max = 32, 56 .channels_max = 32,
53 .rates = ADS117X_RATES, 57 .rates = ADS117X_RATES,
54 .formats = ADS117X_FORMATS,}, 58 .formats = ADS117X_FORMATS,},
55 }; 59 };
56 60
57 static const struct snd_soc_component_driver s 61 static const struct snd_soc_component_driver soc_component_dev_ads117x = {
58 .dapm_widgets = ads117x_dapm 62 .dapm_widgets = ads117x_dapm_widgets,
59 .num_dapm_widgets = ARRAY_SIZE(a 63 .num_dapm_widgets = ARRAY_SIZE(ads117x_dapm_widgets),
60 .dapm_routes = ads117x_dapm 64 .dapm_routes = ads117x_dapm_routes,
61 .num_dapm_routes = ARRAY_SIZE(a 65 .num_dapm_routes = ARRAY_SIZE(ads117x_dapm_routes),
62 .idle_bias_on = 1, 66 .idle_bias_on = 1,
63 .use_pmdown_time = 1, 67 .use_pmdown_time = 1,
64 .endianness = 1, 68 .endianness = 1,
>> 69 .non_legacy_dai_naming = 1,
65 }; 70 };
66 71
67 static int ads117x_probe(struct platform_devic 72 static int ads117x_probe(struct platform_device *pdev)
68 { 73 {
69 return devm_snd_soc_register_component 74 return devm_snd_soc_register_component(&pdev->dev,
70 &soc_component_dev_ads 75 &soc_component_dev_ads117x, &ads117x_dai, 1);
71 } 76 }
72 77
73 #if defined(CONFIG_OF) 78 #if defined(CONFIG_OF)
74 static const struct of_device_id ads117x_dt_id 79 static const struct of_device_id ads117x_dt_ids[] = {
75 { .compatible = "ti,ads1174" }, 80 { .compatible = "ti,ads1174" },
76 { .compatible = "ti,ads1178" }, 81 { .compatible = "ti,ads1178" },
77 { }, 82 { },
78 }; 83 };
79 MODULE_DEVICE_TABLE(of, ads117x_dt_ids); 84 MODULE_DEVICE_TABLE(of, ads117x_dt_ids);
80 #endif 85 #endif
81 86
82 static struct platform_driver ads117x_codec_dr 87 static struct platform_driver ads117x_codec_driver = {
83 .driver = { 88 .driver = {
84 .name = "ads117x-codec 89 .name = "ads117x-codec",
85 .of_match_table = of_m 90 .of_match_table = of_match_ptr(ads117x_dt_ids),
86 }, 91 },
87 92
88 .probe = ads117x_probe, 93 .probe = ads117x_probe,
89 }; 94 };
90 95
91 module_platform_driver(ads117x_codec_driver); 96 module_platform_driver(ads117x_codec_driver);
92 97
93 MODULE_DESCRIPTION("ASoC ads117x driver"); 98 MODULE_DESCRIPTION("ASoC ads117x driver");
94 MODULE_AUTHOR("Graeme Gregory"); 99 MODULE_AUTHOR("Graeme Gregory");
95 MODULE_LICENSE("GPL"); 100 MODULE_LICENSE("GPL");
96 101
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.