1 // SPDX-License-Identifier: GPL-2.0-only 1 // SPDX-License-Identifier: GPL-2.0-only
2 // 2 //
3 // rt1015p.c -- RT1015P ALSA SoC audio ampli 3 // rt1015p.c -- RT1015P ALSA SoC audio amplifier driver
4 // 4 //
5 // Copyright 2020 The Linux Foundation. All ri 5 // Copyright 2020 The Linux Foundation. All rights reserved.
6 6
7 #include <linux/acpi.h> 7 #include <linux/acpi.h>
8 #include <linux/delay.h> 8 #include <linux/delay.h>
9 #include <linux/device.h> 9 #include <linux/device.h>
10 #include <linux/err.h> 10 #include <linux/err.h>
11 #include <linux/gpio/consumer.h> 11 #include <linux/gpio/consumer.h>
12 #include <linux/kernel.h> 12 #include <linux/kernel.h>
13 #include <linux/module.h> 13 #include <linux/module.h>
14 #include <linux/of.h> 14 #include <linux/of.h>
15 #include <linux/platform_device.h> 15 #include <linux/platform_device.h>
16 #include <sound/pcm.h> 16 #include <sound/pcm.h>
17 #include <sound/soc.h> 17 #include <sound/soc.h>
18 #include <sound/soc-dai.h> 18 #include <sound/soc-dai.h>
19 #include <sound/soc-dapm.h> 19 #include <sound/soc-dapm.h>
20 20
21 struct rt1015p_priv { 21 struct rt1015p_priv {
22 struct gpio_desc *sdb; 22 struct gpio_desc *sdb;
23 bool calib_done; 23 bool calib_done;
24 }; 24 };
25 25
26 static int rt1015p_sdb_event(struct snd_soc_da 26 static int rt1015p_sdb_event(struct snd_soc_dapm_widget *w,
27 struct snd_kcontrol *kcontrol, 27 struct snd_kcontrol *kcontrol, int event)
28 { 28 {
29 struct snd_soc_component *component = 29 struct snd_soc_component *component =
30 snd_soc_dapm_to_component(w->d 30 snd_soc_dapm_to_component(w->dapm);
31 struct rt1015p_priv *rt1015p = 31 struct rt1015p_priv *rt1015p =
32 snd_soc_component_get_drvdata( 32 snd_soc_component_get_drvdata(component);
33 33
34 if (!rt1015p->sdb) 34 if (!rt1015p->sdb)
35 return 0; 35 return 0;
36 36
37 switch (event) { 37 switch (event) {
38 case SND_SOC_DAPM_PRE_PMU: 38 case SND_SOC_DAPM_PRE_PMU:
39 gpiod_set_value_cansleep(rt101 39 gpiod_set_value_cansleep(rt1015p->sdb, 1);
40 dev_dbg(component->dev, "set s 40 dev_dbg(component->dev, "set sdb to 1");
41 41
42 if (!rt1015p->calib_done) { 42 if (!rt1015p->calib_done) {
43 msleep(300); 43 msleep(300);
44 rt1015p->calib_done = 44 rt1015p->calib_done = true;
45 } 45 }
46 break; 46 break;
47 case SND_SOC_DAPM_POST_PMD: 47 case SND_SOC_DAPM_POST_PMD:
48 gpiod_set_value_cansleep(rt101 48 gpiod_set_value_cansleep(rt1015p->sdb, 0);
49 dev_dbg(component->dev, "set s 49 dev_dbg(component->dev, "set sdb to 0");
50 break; 50 break;
51 default: 51 default:
52 break; 52 break;
53 } 53 }
54 54
55 return 0; 55 return 0;
56 } 56 }
57 57
58 static const struct snd_soc_dapm_widget rt1015 58 static const struct snd_soc_dapm_widget rt1015p_dapm_widgets[] = {
59 SND_SOC_DAPM_OUTPUT("Speaker"), 59 SND_SOC_DAPM_OUTPUT("Speaker"),
60 SND_SOC_DAPM_OUT_DRV_E("SDB", SND_SOC_ 60 SND_SOC_DAPM_OUT_DRV_E("SDB", SND_SOC_NOPM, 0, 0, NULL, 0,
61 rt1015p_sdb_event, 61 rt1015p_sdb_event,
62 SND_SOC_DAPM_PRE_PMU | 62 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
63 }; 63 };
64 64
65 static const struct snd_soc_dapm_route rt1015p 65 static const struct snd_soc_dapm_route rt1015p_dapm_routes[] = {
66 {"SDB", NULL, "HiFi Playback"}, 66 {"SDB", NULL, "HiFi Playback"},
67 {"Speaker", NULL, "SDB"}, 67 {"Speaker", NULL, "SDB"},
68 }; 68 };
69 69
70 #ifdef CONFIG_PM 70 #ifdef CONFIG_PM
71 static int rt1015p_suspend(struct snd_soc_comp 71 static int rt1015p_suspend(struct snd_soc_component *component)
72 { 72 {
73 struct rt1015p_priv *rt1015p = snd_soc 73 struct rt1015p_priv *rt1015p = snd_soc_component_get_drvdata(component);
74 74
75 rt1015p->calib_done = false; 75 rt1015p->calib_done = false;
76 return 0; 76 return 0;
77 } 77 }
78 #else 78 #else
79 #define rt1015p_suspend NULL 79 #define rt1015p_suspend NULL
80 #endif 80 #endif
81 81
82 static const struct snd_soc_component_driver r 82 static const struct snd_soc_component_driver rt1015p_component_driver = {
83 .suspend = rt1015p_susp 83 .suspend = rt1015p_suspend,
84 .dapm_widgets = rt1015p_dapm 84 .dapm_widgets = rt1015p_dapm_widgets,
85 .num_dapm_widgets = ARRAY_SIZE(r 85 .num_dapm_widgets = ARRAY_SIZE(rt1015p_dapm_widgets),
86 .dapm_routes = rt1015p_dapm 86 .dapm_routes = rt1015p_dapm_routes,
87 .num_dapm_routes = ARRAY_SIZE(r 87 .num_dapm_routes = ARRAY_SIZE(rt1015p_dapm_routes),
88 .idle_bias_on = 1, 88 .idle_bias_on = 1,
89 .use_pmdown_time = 1, 89 .use_pmdown_time = 1,
90 .endianness = 1, 90 .endianness = 1,
91 }; 91 };
92 92
93 static struct snd_soc_dai_driver rt1015p_dai_d 93 static struct snd_soc_dai_driver rt1015p_dai_driver = {
94 .name = "HiFi", 94 .name = "HiFi",
95 .playback = { 95 .playback = {
96 .stream_name = "HiFi Playba 96 .stream_name = "HiFi Playback",
97 .formats = SNDRV_PCM_FM 97 .formats = SNDRV_PCM_FMTBIT_S24 |
98 SNDRV_ 98 SNDRV_PCM_FMTBIT_S32,
99 .rates = SNDRV_PCM_RA 99 .rates = SNDRV_PCM_RATE_48000,
100 .channels_min = 1, 100 .channels_min = 1,
101 .channels_max = 2, 101 .channels_max = 2,
102 }, 102 },
103 }; 103 };
104 104
105 static int rt1015p_platform_probe(struct platf 105 static int rt1015p_platform_probe(struct platform_device *pdev)
106 { 106 {
107 struct rt1015p_priv *rt1015p; 107 struct rt1015p_priv *rt1015p;
108 108
109 rt1015p = devm_kzalloc(&pdev->dev, siz 109 rt1015p = devm_kzalloc(&pdev->dev, sizeof(*rt1015p), GFP_KERNEL);
110 if (!rt1015p) 110 if (!rt1015p)
111 return -ENOMEM; 111 return -ENOMEM;
112 112
113 rt1015p->sdb = devm_gpiod_get_optional 113 rt1015p->sdb = devm_gpiod_get_optional(&pdev->dev,
114 "sdb", GPIOD_O 114 "sdb", GPIOD_OUT_LOW);
115 if (IS_ERR(rt1015p->sdb)) 115 if (IS_ERR(rt1015p->sdb))
116 return PTR_ERR(rt1015p->sdb); 116 return PTR_ERR(rt1015p->sdb);
117 117
118 dev_set_drvdata(&pdev->dev, rt1015p); 118 dev_set_drvdata(&pdev->dev, rt1015p);
119 119
120 return devm_snd_soc_register_component 120 return devm_snd_soc_register_component(&pdev->dev,
121 &rt1015p_component_dri 121 &rt1015p_component_driver,
122 &rt1015p_dai_driver, 1 122 &rt1015p_dai_driver, 1);
123 } 123 }
124 124
125 #ifdef CONFIG_OF 125 #ifdef CONFIG_OF
126 static const struct of_device_id rt1015p_devic 126 static const struct of_device_id rt1015p_device_id[] = {
127 { .compatible = "realtek,rt1015p" }, 127 { .compatible = "realtek,rt1015p" },
128 { .compatible = "realtek,rt1019p" }, 128 { .compatible = "realtek,rt1019p" },
129 {} 129 {}
130 }; 130 };
131 MODULE_DEVICE_TABLE(of, rt1015p_device_id); 131 MODULE_DEVICE_TABLE(of, rt1015p_device_id);
132 #endif 132 #endif
133 133
134 #ifdef CONFIG_ACPI 134 #ifdef CONFIG_ACPI
135 static const struct acpi_device_id rt1015p_acp 135 static const struct acpi_device_id rt1015p_acpi_match[] = {
136 { "RTL1015", 0}, 136 { "RTL1015", 0},
137 { "RTL1019", 0}, 137 { "RTL1019", 0},
138 { }, 138 { },
139 }; 139 };
140 MODULE_DEVICE_TABLE(acpi, rt1015p_acpi_match); 140 MODULE_DEVICE_TABLE(acpi, rt1015p_acpi_match);
141 #endif 141 #endif
142 142
143 static struct platform_driver rt1015p_platform 143 static struct platform_driver rt1015p_platform_driver = {
144 .driver = { 144 .driver = {
145 .name = "rt1015p", 145 .name = "rt1015p",
146 .of_match_table = of_match_ptr 146 .of_match_table = of_match_ptr(rt1015p_device_id),
147 .acpi_match_table = ACPI_PTR(r 147 .acpi_match_table = ACPI_PTR(rt1015p_acpi_match),
148 }, 148 },
149 .probe = rt1015p_platform_probe, 149 .probe = rt1015p_platform_probe,
150 }; 150 };
151 module_platform_driver(rt1015p_platform_driver 151 module_platform_driver(rt1015p_platform_driver);
152 152
153 MODULE_DESCRIPTION("ASoC RT1015P driver"); 153 MODULE_DESCRIPTION("ASoC RT1015P driver");
154 MODULE_LICENSE("GPL v2"); 154 MODULE_LICENSE("GPL v2");
155 155
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