1 // SPDX-License-Identifier: GPL-2.0-only <<
2 /* 1 /*
3 * wm8731.c -- WM8731 ALSA SoC Audio driver 2 * wm8731.c -- WM8731 ALSA SoC Audio driver
4 * 3 *
5 * Copyright 2005 Openedhand Ltd. 4 * Copyright 2005 Openedhand Ltd.
6 * Copyright 2006-12 Wolfson Microelectronics, 5 * Copyright 2006-12 Wolfson Microelectronics, plc
7 * 6 *
8 * Author: Richard Purdie <richard@openedhand. 7 * Author: Richard Purdie <richard@openedhand.com>
9 * 8 *
10 * Based on wm8753.c by Liam Girdwood 9 * Based on wm8753.c by Liam Girdwood
>> 10 *
>> 11 * This program is free software; you can redistribute it and/or modify
>> 12 * it under the terms of the GNU General Public License version 2 as
>> 13 * published by the Free Software Foundation.
11 */ 14 */
12 15
13 #include <linux/module.h> 16 #include <linux/module.h>
14 #include <linux/moduleparam.h> 17 #include <linux/moduleparam.h>
15 #include <linux/init.h> 18 #include <linux/init.h>
16 #include <linux/delay.h> 19 #include <linux/delay.h>
17 #include <linux/pm.h> 20 #include <linux/pm.h>
>> 21 #include <linux/i2c.h>
18 #include <linux/slab.h> 22 #include <linux/slab.h>
19 #include <linux/regmap.h> 23 #include <linux/regmap.h>
20 #include <linux/regulator/consumer.h> 24 #include <linux/regulator/consumer.h>
>> 25 #include <linux/spi/spi.h>
>> 26 #include <linux/of_device.h>
>> 27 #include <linux/mutex.h>
21 #include <linux/clk.h> 28 #include <linux/clk.h>
22 #include <sound/core.h> 29 #include <sound/core.h>
23 #include <sound/pcm.h> 30 #include <sound/pcm.h>
24 #include <sound/pcm_params.h> 31 #include <sound/pcm_params.h>
25 #include <sound/soc.h> 32 #include <sound/soc.h>
26 #include <sound/initval.h> 33 #include <sound/initval.h>
27 #include <sound/tlv.h> 34 #include <sound/tlv.h>
28 35
29 #include "wm8731.h" 36 #include "wm8731.h"
30 37
>> 38 #define WM8731_NUM_SUPPLIES 4
31 static const char *wm8731_supply_names[WM8731_ 39 static const char *wm8731_supply_names[WM8731_NUM_SUPPLIES] = {
32 "AVDD", 40 "AVDD",
33 "HPVDD", 41 "HPVDD",
34 "DCVDD", 42 "DCVDD",
35 "DBVDD", 43 "DBVDD",
36 }; 44 };
37 45
>> 46 /* codec private data */
>> 47 struct wm8731_priv {
>> 48 struct regmap *regmap;
>> 49 struct clk *mclk;
>> 50 struct regulator_bulk_data supplies[WM8731_NUM_SUPPLIES];
>> 51 const struct snd_pcm_hw_constraint_list *constraints;
>> 52 unsigned int sysclk;
>> 53 int sysclk_type;
>> 54 int playback_fs;
>> 55 bool deemph;
>> 56
>> 57 struct mutex lock;
>> 58 };
>> 59
>> 60
38 /* 61 /*
39 * wm8731 register cache 62 * wm8731 register cache
40 */ 63 */
41 static const struct reg_default wm8731_reg_def 64 static const struct reg_default wm8731_reg_defaults[] = {
42 { 0, 0x0097 }, 65 { 0, 0x0097 },
43 { 1, 0x0097 }, 66 { 1, 0x0097 },
44 { 2, 0x0079 }, 67 { 2, 0x0079 },
45 { 3, 0x0079 }, 68 { 3, 0x0079 },
46 { 4, 0x000a }, 69 { 4, 0x000a },
47 { 5, 0x0008 }, 70 { 5, 0x0008 },
48 { 6, 0x009f }, 71 { 6, 0x009f },
49 { 7, 0x000a }, 72 { 7, 0x000a },
50 { 8, 0x0000 }, 73 { 8, 0x0000 },
51 { 9, 0x0000 }, 74 { 9, 0x0000 },
52 }; 75 };
53 76
54 static bool wm8731_volatile(struct device *dev 77 static bool wm8731_volatile(struct device *dev, unsigned int reg)
55 { 78 {
56 return reg == WM8731_RESET; 79 return reg == WM8731_RESET;
57 } 80 }
58 81
59 #define wm8731_reset(m) regmap_write(m, WM8731 82 #define wm8731_reset(m) regmap_write(m, WM8731_RESET, 0)
60 83
61 static const char *wm8731_input_select[] = {"L 84 static const char *wm8731_input_select[] = {"Line In", "Mic"};
62 85
63 static SOC_ENUM_SINGLE_DECL(wm8731_insel_enum, 86 static SOC_ENUM_SINGLE_DECL(wm8731_insel_enum,
64 WM8731_APANA, 2, w 87 WM8731_APANA, 2, wm8731_input_select);
65 88
66 static int wm8731_deemph[] = { 0, 32000, 44100 89 static int wm8731_deemph[] = { 0, 32000, 44100, 48000 };
67 90
68 static int wm8731_set_deemph(struct snd_soc_co 91 static int wm8731_set_deemph(struct snd_soc_component *component)
69 { 92 {
70 struct wm8731_priv *wm8731 = snd_soc_c 93 struct wm8731_priv *wm8731 = snd_soc_component_get_drvdata(component);
71 int val, i, best; 94 int val, i, best;
72 95
73 /* If we're using deemphasis select th 96 /* If we're using deemphasis select the nearest available sample
74 * rate. 97 * rate.
75 */ 98 */
76 if (wm8731->deemph) { 99 if (wm8731->deemph) {
77 best = 1; 100 best = 1;
78 for (i = 2; i < ARRAY_SIZE(wm8 101 for (i = 2; i < ARRAY_SIZE(wm8731_deemph); i++) {
79 if (abs(wm8731_deemph[ 102 if (abs(wm8731_deemph[i] - wm8731->playback_fs) <
80 abs(wm8731_deemph[ 103 abs(wm8731_deemph[best] - wm8731->playback_fs))
81 best = i; 104 best = i;
82 } 105 }
83 106
84 val = best << 1; 107 val = best << 1;
85 } else { 108 } else {
86 best = 0; 109 best = 0;
87 val = 0; 110 val = 0;
88 } 111 }
89 112
90 dev_dbg(component->dev, "Set deemphasi 113 dev_dbg(component->dev, "Set deemphasis %d (%dHz)\n",
91 best, wm8731_deemph[best]); 114 best, wm8731_deemph[best]);
92 115
93 return snd_soc_component_update_bits(c 116 return snd_soc_component_update_bits(component, WM8731_APDIGI, 0x6, val);
94 } 117 }
95 118
96 static int wm8731_get_deemph(struct snd_kcontr 119 static int wm8731_get_deemph(struct snd_kcontrol *kcontrol,
97 struct snd_ctl_el 120 struct snd_ctl_elem_value *ucontrol)
98 { 121 {
99 struct snd_soc_component *component = 122 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
100 struct wm8731_priv *wm8731 = snd_soc_c 123 struct wm8731_priv *wm8731 = snd_soc_component_get_drvdata(component);
101 124
102 ucontrol->value.integer.value[0] = wm8 125 ucontrol->value.integer.value[0] = wm8731->deemph;
103 126
104 return 0; 127 return 0;
105 } 128 }
106 129
107 static int wm8731_put_deemph(struct snd_kcontr 130 static int wm8731_put_deemph(struct snd_kcontrol *kcontrol,
108 struct snd_ctl_el 131 struct snd_ctl_elem_value *ucontrol)
109 { 132 {
110 struct snd_soc_component *component = 133 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
111 struct wm8731_priv *wm8731 = snd_soc_c 134 struct wm8731_priv *wm8731 = snd_soc_component_get_drvdata(component);
112 unsigned int deemph = ucontrol->value. 135 unsigned int deemph = ucontrol->value.integer.value[0];
113 int ret = 0; 136 int ret = 0;
114 137
115 if (deemph > 1) 138 if (deemph > 1)
116 return -EINVAL; 139 return -EINVAL;
117 140
118 mutex_lock(&wm8731->lock); 141 mutex_lock(&wm8731->lock);
119 if (wm8731->deemph != deemph) { 142 if (wm8731->deemph != deemph) {
120 wm8731->deemph = deemph; 143 wm8731->deemph = deemph;
121 144
122 wm8731_set_deemph(component); 145 wm8731_set_deemph(component);
123 146
124 ret = 1; 147 ret = 1;
125 } 148 }
126 mutex_unlock(&wm8731->lock); 149 mutex_unlock(&wm8731->lock);
127 150
128 return ret; 151 return ret;
129 } 152 }
130 153
131 static const DECLARE_TLV_DB_SCALE(in_tlv, -345 154 static const DECLARE_TLV_DB_SCALE(in_tlv, -3450, 150, 0);
132 static const DECLARE_TLV_DB_SCALE(sidetone_tlv 155 static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -1500, 300, 0);
133 static const DECLARE_TLV_DB_SCALE(out_tlv, -12 156 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
134 static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 157 static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 2000, 0);
135 158
136 static const struct snd_kcontrol_new wm8731_sn 159 static const struct snd_kcontrol_new wm8731_snd_controls[] = {
137 160
138 SOC_DOUBLE_R_TLV("Master Playback Volume", WM8 161 SOC_DOUBLE_R_TLV("Master Playback Volume", WM8731_LOUT1V, WM8731_ROUT1V,
139 0, 127, 0, out_tlv), 162 0, 127, 0, out_tlv),
140 SOC_DOUBLE_R("Master Playback ZC Switch", WM87 163 SOC_DOUBLE_R("Master Playback ZC Switch", WM8731_LOUT1V, WM8731_ROUT1V,
141 7, 1, 0), 164 7, 1, 0),
142 165
143 SOC_DOUBLE_R_TLV("Capture Volume", WM8731_LINV 166 SOC_DOUBLE_R_TLV("Capture Volume", WM8731_LINVOL, WM8731_RINVOL, 0, 31, 0,
144 in_tlv), 167 in_tlv),
145 SOC_DOUBLE_R("Line Capture Switch", WM8731_LIN 168 SOC_DOUBLE_R("Line Capture Switch", WM8731_LINVOL, WM8731_RINVOL, 7, 1, 1),
146 169
147 SOC_SINGLE_TLV("Mic Boost Volume", WM8731_APAN 170 SOC_SINGLE_TLV("Mic Boost Volume", WM8731_APANA, 0, 1, 0, mic_tlv),
148 SOC_SINGLE("Mic Capture Switch", WM8731_APANA, 171 SOC_SINGLE("Mic Capture Switch", WM8731_APANA, 1, 1, 1),
149 172
150 SOC_SINGLE_TLV("Sidetone Playback Volume", WM8 173 SOC_SINGLE_TLV("Sidetone Playback Volume", WM8731_APANA, 6, 3, 1,
151 sidetone_tlv), 174 sidetone_tlv),
152 175
153 SOC_SINGLE("ADC High Pass Filter Switch", WM87 176 SOC_SINGLE("ADC High Pass Filter Switch", WM8731_APDIGI, 0, 1, 1),
154 SOC_SINGLE("Store DC Offset Switch", WM8731_AP 177 SOC_SINGLE("Store DC Offset Switch", WM8731_APDIGI, 4, 1, 0),
155 178
156 SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switc 179 SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0,
157 wm8731_get_deemph, wm8731_ 180 wm8731_get_deemph, wm8731_put_deemph),
158 }; 181 };
159 182
160 /* Output Mixer */ 183 /* Output Mixer */
161 static const struct snd_kcontrol_new wm8731_ou 184 static const struct snd_kcontrol_new wm8731_output_mixer_controls[] = {
162 SOC_DAPM_SINGLE("Line Bypass Switch", WM8731_A 185 SOC_DAPM_SINGLE("Line Bypass Switch", WM8731_APANA, 3, 1, 0),
163 SOC_DAPM_SINGLE("Mic Sidetone Switch", WM8731_ 186 SOC_DAPM_SINGLE("Mic Sidetone Switch", WM8731_APANA, 5, 1, 0),
164 SOC_DAPM_SINGLE("HiFi Playback Switch", WM8731 187 SOC_DAPM_SINGLE("HiFi Playback Switch", WM8731_APANA, 4, 1, 0),
165 }; 188 };
166 189
167 /* Input mux */ 190 /* Input mux */
168 static const struct snd_kcontrol_new wm8731_in 191 static const struct snd_kcontrol_new wm8731_input_mux_controls =
169 SOC_DAPM_ENUM("Input Select", wm8731_insel_enu 192 SOC_DAPM_ENUM("Input Select", wm8731_insel_enum);
170 193
171 static const struct snd_soc_dapm_widget wm8731 194 static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = {
172 SND_SOC_DAPM_SUPPLY("ACTIVE",WM8731_ACTIVE, 0, 195 SND_SOC_DAPM_SUPPLY("ACTIVE",WM8731_ACTIVE, 0, 0, NULL, 0),
173 SND_SOC_DAPM_SUPPLY("OSC", WM8731_PWR, 5, 1, N 196 SND_SOC_DAPM_SUPPLY("OSC", WM8731_PWR, 5, 1, NULL, 0),
174 SND_SOC_DAPM_MIXER("Output Mixer", WM8731_PWR, 197 SND_SOC_DAPM_MIXER("Output Mixer", WM8731_PWR, 4, 1,
175 &wm8731_output_mixer_controls[0], 198 &wm8731_output_mixer_controls[0],
176 ARRAY_SIZE(wm8731_output_mixer_control 199 ARRAY_SIZE(wm8731_output_mixer_controls)),
177 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM873 200 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8731_PWR, 3, 1),
178 SND_SOC_DAPM_OUTPUT("LOUT"), 201 SND_SOC_DAPM_OUTPUT("LOUT"),
179 SND_SOC_DAPM_OUTPUT("LHPOUT"), 202 SND_SOC_DAPM_OUTPUT("LHPOUT"),
180 SND_SOC_DAPM_OUTPUT("ROUT"), 203 SND_SOC_DAPM_OUTPUT("ROUT"),
181 SND_SOC_DAPM_OUTPUT("RHPOUT"), 204 SND_SOC_DAPM_OUTPUT("RHPOUT"),
182 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8731 205 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8731_PWR, 2, 1),
183 SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 206 SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &wm8731_input_mux_controls),
184 SND_SOC_DAPM_PGA("Line Input", WM8731_PWR, 0, 207 SND_SOC_DAPM_PGA("Line Input", WM8731_PWR, 0, 1, NULL, 0),
185 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8731_PWR, 1 208 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8731_PWR, 1, 1),
186 SND_SOC_DAPM_INPUT("MICIN"), 209 SND_SOC_DAPM_INPUT("MICIN"),
187 SND_SOC_DAPM_INPUT("RLINEIN"), 210 SND_SOC_DAPM_INPUT("RLINEIN"),
188 SND_SOC_DAPM_INPUT("LLINEIN"), 211 SND_SOC_DAPM_INPUT("LLINEIN"),
189 }; 212 };
190 213
191 static int wm8731_check_osc(struct snd_soc_dap 214 static int wm8731_check_osc(struct snd_soc_dapm_widget *source,
192 struct snd_soc_dap 215 struct snd_soc_dapm_widget *sink)
193 { 216 {
194 struct snd_soc_component *component = 217 struct snd_soc_component *component = snd_soc_dapm_to_component(source->dapm);
195 struct wm8731_priv *wm8731 = snd_soc_c 218 struct wm8731_priv *wm8731 = snd_soc_component_get_drvdata(component);
196 219
197 return wm8731->sysclk_type == WM8731_S 220 return wm8731->sysclk_type == WM8731_SYSCLK_XTAL;
198 } 221 }
199 222
200 static const struct snd_soc_dapm_route wm8731_ 223 static const struct snd_soc_dapm_route wm8731_intercon[] = {
201 {"DAC", NULL, "OSC", wm8731_check_osc} 224 {"DAC", NULL, "OSC", wm8731_check_osc},
202 {"ADC", NULL, "OSC", wm8731_check_osc} 225 {"ADC", NULL, "OSC", wm8731_check_osc},
203 {"DAC", NULL, "ACTIVE"}, 226 {"DAC", NULL, "ACTIVE"},
204 {"ADC", NULL, "ACTIVE"}, 227 {"ADC", NULL, "ACTIVE"},
205 228
206 /* output mixer */ 229 /* output mixer */
207 {"Output Mixer", "Line Bypass Switch", 230 {"Output Mixer", "Line Bypass Switch", "Line Input"},
208 {"Output Mixer", "HiFi Playback Switch 231 {"Output Mixer", "HiFi Playback Switch", "DAC"},
209 {"Output Mixer", "Mic Sidetone Switch" 232 {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
210 233
211 /* outputs */ 234 /* outputs */
212 {"RHPOUT", NULL, "Output Mixer"}, 235 {"RHPOUT", NULL, "Output Mixer"},
213 {"ROUT", NULL, "Output Mixer"}, 236 {"ROUT", NULL, "Output Mixer"},
214 {"LHPOUT", NULL, "Output Mixer"}, 237 {"LHPOUT", NULL, "Output Mixer"},
215 {"LOUT", NULL, "Output Mixer"}, 238 {"LOUT", NULL, "Output Mixer"},
216 239
217 /* input mux */ 240 /* input mux */
218 {"Input Mux", "Line In", "Line Input"} 241 {"Input Mux", "Line In", "Line Input"},
219 {"Input Mux", "Mic", "Mic Bias"}, 242 {"Input Mux", "Mic", "Mic Bias"},
220 {"ADC", NULL, "Input Mux"}, 243 {"ADC", NULL, "Input Mux"},
221 244
222 /* inputs */ 245 /* inputs */
223 {"Line Input", NULL, "LLINEIN"}, 246 {"Line Input", NULL, "LLINEIN"},
224 {"Line Input", NULL, "RLINEIN"}, 247 {"Line Input", NULL, "RLINEIN"},
225 {"Mic Bias", NULL, "MICIN"}, 248 {"Mic Bias", NULL, "MICIN"},
226 }; 249 };
227 250
228 struct _coeff_div { 251 struct _coeff_div {
229 u32 mclk; 252 u32 mclk;
230 u32 rate; 253 u32 rate;
231 u16 fs; 254 u16 fs;
232 u8 sr:4; 255 u8 sr:4;
233 u8 bosr:1; 256 u8 bosr:1;
234 u8 usb:1; 257 u8 usb:1;
235 }; 258 };
236 259
237 /* codec mclk clock divider coefficients */ 260 /* codec mclk clock divider coefficients */
238 static const struct _coeff_div coeff_div[] = { 261 static const struct _coeff_div coeff_div[] = {
239 /* 48k */ 262 /* 48k */
240 {12288000, 48000, 256, 0x0, 0x0, 0x0}, 263 {12288000, 48000, 256, 0x0, 0x0, 0x0},
241 {18432000, 48000, 384, 0x0, 0x1, 0x0}, 264 {18432000, 48000, 384, 0x0, 0x1, 0x0},
242 {12000000, 48000, 250, 0x0, 0x0, 0x1}, 265 {12000000, 48000, 250, 0x0, 0x0, 0x1},
243 266
244 /* 32k */ 267 /* 32k */
245 {12288000, 32000, 384, 0x6, 0x0, 0x0}, 268 {12288000, 32000, 384, 0x6, 0x0, 0x0},
246 {18432000, 32000, 576, 0x6, 0x1, 0x0}, 269 {18432000, 32000, 576, 0x6, 0x1, 0x0},
247 {12000000, 32000, 375, 0x6, 0x0, 0x1}, 270 {12000000, 32000, 375, 0x6, 0x0, 0x1},
248 271
249 /* 8k */ 272 /* 8k */
250 {12288000, 8000, 1536, 0x3, 0x0, 0x0}, 273 {12288000, 8000, 1536, 0x3, 0x0, 0x0},
251 {18432000, 8000, 2304, 0x3, 0x1, 0x0}, 274 {18432000, 8000, 2304, 0x3, 0x1, 0x0},
252 {11289600, 8000, 1408, 0xb, 0x0, 0x0}, 275 {11289600, 8000, 1408, 0xb, 0x0, 0x0},
253 {16934400, 8000, 2112, 0xb, 0x1, 0x0}, 276 {16934400, 8000, 2112, 0xb, 0x1, 0x0},
254 {12000000, 8000, 1500, 0x3, 0x0, 0x1}, 277 {12000000, 8000, 1500, 0x3, 0x0, 0x1},
255 278
256 /* 96k */ 279 /* 96k */
257 {12288000, 96000, 128, 0x7, 0x0, 0x0}, 280 {12288000, 96000, 128, 0x7, 0x0, 0x0},
258 {18432000, 96000, 192, 0x7, 0x1, 0x0}, 281 {18432000, 96000, 192, 0x7, 0x1, 0x0},
259 {12000000, 96000, 125, 0x7, 0x0, 0x1}, 282 {12000000, 96000, 125, 0x7, 0x0, 0x1},
260 283
261 /* 44.1k */ 284 /* 44.1k */
262 {11289600, 44100, 256, 0x8, 0x0, 0x0}, 285 {11289600, 44100, 256, 0x8, 0x0, 0x0},
263 {16934400, 44100, 384, 0x8, 0x1, 0x0}, 286 {16934400, 44100, 384, 0x8, 0x1, 0x0},
264 {12000000, 44100, 272, 0x8, 0x1, 0x1}, 287 {12000000, 44100, 272, 0x8, 0x1, 0x1},
265 288
266 /* 88.2k */ 289 /* 88.2k */
267 {11289600, 88200, 128, 0xf, 0x0, 0x0}, 290 {11289600, 88200, 128, 0xf, 0x0, 0x0},
268 {16934400, 88200, 192, 0xf, 0x1, 0x0}, 291 {16934400, 88200, 192, 0xf, 0x1, 0x0},
269 {12000000, 88200, 136, 0xf, 0x1, 0x1}, 292 {12000000, 88200, 136, 0xf, 0x1, 0x1},
270 }; 293 };
271 294
272 /* rates constraints */ 295 /* rates constraints */
273 static const unsigned int wm8731_rates_1200000 296 static const unsigned int wm8731_rates_12000000[] = {
274 8000, 32000, 44100, 48000, 96000, 8820 297 8000, 32000, 44100, 48000, 96000, 88200,
275 }; 298 };
276 299
277 static const unsigned int wm8731_rates_1228800 300 static const unsigned int wm8731_rates_12288000_18432000[] = {
278 8000, 32000, 48000, 96000, 301 8000, 32000, 48000, 96000,
279 }; 302 };
280 303
281 static const unsigned int wm8731_rates_1128960 304 static const unsigned int wm8731_rates_11289600_16934400[] = {
282 8000, 44100, 88200, 305 8000, 44100, 88200,
283 }; 306 };
284 307
285 static const struct snd_pcm_hw_constraint_list 308 static const struct snd_pcm_hw_constraint_list wm8731_constraints_12000000 = {
286 .list = wm8731_rates_12000000, 309 .list = wm8731_rates_12000000,
287 .count = ARRAY_SIZE(wm8731_rates_12000 310 .count = ARRAY_SIZE(wm8731_rates_12000000),
288 }; 311 };
289 312
290 static const 313 static const
291 struct snd_pcm_hw_constraint_list wm8731_const 314 struct snd_pcm_hw_constraint_list wm8731_constraints_12288000_18432000 = {
292 .list = wm8731_rates_12288000_18432000 315 .list = wm8731_rates_12288000_18432000,
293 .count = ARRAY_SIZE(wm8731_rates_12288 316 .count = ARRAY_SIZE(wm8731_rates_12288000_18432000),
294 }; 317 };
295 318
296 static const 319 static const
297 struct snd_pcm_hw_constraint_list wm8731_const 320 struct snd_pcm_hw_constraint_list wm8731_constraints_11289600_16934400 = {
298 .list = wm8731_rates_11289600_16934400 321 .list = wm8731_rates_11289600_16934400,
299 .count = ARRAY_SIZE(wm8731_rates_11289 322 .count = ARRAY_SIZE(wm8731_rates_11289600_16934400),
300 }; 323 };
301 324
302 static inline int get_coeff(int mclk, int rate 325 static inline int get_coeff(int mclk, int rate)
303 { 326 {
304 int i; 327 int i;
305 328
306 for (i = 0; i < ARRAY_SIZE(coeff_div); 329 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
307 if (coeff_div[i].rate == rate 330 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
308 return i; 331 return i;
309 } 332 }
310 return 0; 333 return 0;
311 } 334 }
312 335
313 static int wm8731_hw_params(struct snd_pcm_sub 336 static int wm8731_hw_params(struct snd_pcm_substream *substream,
314 struct snd_pcm_hw_ 337 struct snd_pcm_hw_params *params,
315 struct snd_soc_dai 338 struct snd_soc_dai *dai)
316 { 339 {
317 struct snd_soc_component *component = 340 struct snd_soc_component *component = dai->component;
318 struct wm8731_priv *wm8731 = snd_soc_c 341 struct wm8731_priv *wm8731 = snd_soc_component_get_drvdata(component);
319 u16 iface = snd_soc_component_read(com !! 342 u16 iface = snd_soc_component_read32(component, WM8731_IFACE) & 0xfff3;
320 int i = get_coeff(wm8731->sysclk, para 343 int i = get_coeff(wm8731->sysclk, params_rate(params));
321 u16 srate = (coeff_div[i].sr << 2) | 344 u16 srate = (coeff_div[i].sr << 2) |
322 (coeff_div[i].bosr << 1) | coe 345 (coeff_div[i].bosr << 1) | coeff_div[i].usb;
323 346
324 wm8731->playback_fs = params_rate(para 347 wm8731->playback_fs = params_rate(params);
325 348
326 snd_soc_component_write(component, WM8 349 snd_soc_component_write(component, WM8731_SRATE, srate);
327 350
328 /* bit size */ 351 /* bit size */
329 switch (params_width(params)) { 352 switch (params_width(params)) {
330 case 16: 353 case 16:
331 break; 354 break;
332 case 20: 355 case 20:
333 iface |= 0x0004; 356 iface |= 0x0004;
334 break; 357 break;
335 case 24: 358 case 24:
336 iface |= 0x0008; 359 iface |= 0x0008;
337 break; 360 break;
338 case 32: 361 case 32:
339 iface |= 0x000c; 362 iface |= 0x000c;
340 break; 363 break;
341 } 364 }
342 365
343 wm8731_set_deemph(component); 366 wm8731_set_deemph(component);
344 367
345 snd_soc_component_write(component, WM8 368 snd_soc_component_write(component, WM8731_IFACE, iface);
346 return 0; 369 return 0;
347 } 370 }
348 371
349 static int wm8731_mute(struct snd_soc_dai *dai !! 372 static int wm8731_mute(struct snd_soc_dai *dai, int mute)
350 { 373 {
351 struct snd_soc_component *component = 374 struct snd_soc_component *component = dai->component;
352 u16 mute_reg = snd_soc_component_read( !! 375 u16 mute_reg = snd_soc_component_read32(component, WM8731_APDIGI) & 0xfff7;
353 376
354 if (mute) 377 if (mute)
355 snd_soc_component_write(compon 378 snd_soc_component_write(component, WM8731_APDIGI, mute_reg | 0x8);
356 else 379 else
357 snd_soc_component_write(compon 380 snd_soc_component_write(component, WM8731_APDIGI, mute_reg);
358 return 0; 381 return 0;
359 } 382 }
360 383
361 static int wm8731_set_dai_sysclk(struct snd_so 384 static int wm8731_set_dai_sysclk(struct snd_soc_dai *codec_dai,
362 int clk_id, unsigned int freq, 385 int clk_id, unsigned int freq, int dir)
363 { 386 {
364 struct snd_soc_component *component = 387 struct snd_soc_component *component = codec_dai->component;
365 struct snd_soc_dapm_context *dapm = sn 388 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
366 struct wm8731_priv *wm8731 = snd_soc_c 389 struct wm8731_priv *wm8731 = snd_soc_component_get_drvdata(component);
367 390
368 switch (clk_id) { 391 switch (clk_id) {
369 case WM8731_SYSCLK_XTAL: 392 case WM8731_SYSCLK_XTAL:
370 case WM8731_SYSCLK_MCLK: 393 case WM8731_SYSCLK_MCLK:
371 if (wm8731->mclk && clk_set_ra 394 if (wm8731->mclk && clk_set_rate(wm8731->mclk, freq))
372 return -EINVAL; 395 return -EINVAL;
373 wm8731->sysclk_type = clk_id; 396 wm8731->sysclk_type = clk_id;
374 break; 397 break;
375 default: 398 default:
376 return -EINVAL; 399 return -EINVAL;
377 } 400 }
378 401
379 switch (freq) { 402 switch (freq) {
380 case 0: 403 case 0:
381 wm8731->constraints = NULL; 404 wm8731->constraints = NULL;
382 break; 405 break;
383 case 12000000: 406 case 12000000:
384 wm8731->constraints = &wm8731_ 407 wm8731->constraints = &wm8731_constraints_12000000;
385 break; 408 break;
386 case 12288000: 409 case 12288000:
387 case 18432000: 410 case 18432000:
388 wm8731->constraints = &wm8731_ 411 wm8731->constraints = &wm8731_constraints_12288000_18432000;
389 break; 412 break;
390 case 16934400: 413 case 16934400:
391 case 11289600: 414 case 11289600:
392 wm8731->constraints = &wm8731_ 415 wm8731->constraints = &wm8731_constraints_11289600_16934400;
393 break; 416 break;
394 default: 417 default:
395 return -EINVAL; 418 return -EINVAL;
396 } 419 }
397 420
398 wm8731->sysclk = freq; 421 wm8731->sysclk = freq;
399 422
400 snd_soc_dapm_sync(dapm); 423 snd_soc_dapm_sync(dapm);
401 424
402 return 0; 425 return 0;
403 } 426 }
404 427
405 428
406 static int wm8731_set_dai_fmt(struct snd_soc_d 429 static int wm8731_set_dai_fmt(struct snd_soc_dai *codec_dai,
407 unsigned int fmt) 430 unsigned int fmt)
408 { 431 {
409 struct snd_soc_component *component = 432 struct snd_soc_component *component = codec_dai->component;
410 u16 iface = 0; 433 u16 iface = 0;
411 434
412 switch (fmt & SND_SOC_DAIFMT_CLOCK_PRO !! 435 /* set master/slave audio interface */
413 case SND_SOC_DAIFMT_CBP_CFP: !! 436 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
>> 437 case SND_SOC_DAIFMT_CBM_CFM:
414 iface |= 0x0040; 438 iface |= 0x0040;
415 break; 439 break;
416 case SND_SOC_DAIFMT_CBC_CFC: !! 440 case SND_SOC_DAIFMT_CBS_CFS:
417 break; 441 break;
418 default: 442 default:
419 return -EINVAL; 443 return -EINVAL;
420 } 444 }
421 445
422 /* interface format */ 446 /* interface format */
423 switch (fmt & SND_SOC_DAIFMT_FORMAT_MA 447 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
424 case SND_SOC_DAIFMT_I2S: 448 case SND_SOC_DAIFMT_I2S:
425 iface |= 0x0002; 449 iface |= 0x0002;
426 break; 450 break;
427 case SND_SOC_DAIFMT_RIGHT_J: 451 case SND_SOC_DAIFMT_RIGHT_J:
428 break; 452 break;
429 case SND_SOC_DAIFMT_LEFT_J: 453 case SND_SOC_DAIFMT_LEFT_J:
430 iface |= 0x0001; 454 iface |= 0x0001;
431 break; 455 break;
432 case SND_SOC_DAIFMT_DSP_A: 456 case SND_SOC_DAIFMT_DSP_A:
433 iface |= 0x0013; 457 iface |= 0x0013;
434 break; 458 break;
435 case SND_SOC_DAIFMT_DSP_B: 459 case SND_SOC_DAIFMT_DSP_B:
436 iface |= 0x0003; 460 iface |= 0x0003;
437 break; 461 break;
438 default: 462 default:
439 return -EINVAL; 463 return -EINVAL;
440 } 464 }
441 465
442 /* clock inversion */ 466 /* clock inversion */
443 switch (fmt & SND_SOC_DAIFMT_INV_MASK) 467 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
444 case SND_SOC_DAIFMT_NB_NF: 468 case SND_SOC_DAIFMT_NB_NF:
445 break; 469 break;
446 case SND_SOC_DAIFMT_IB_IF: 470 case SND_SOC_DAIFMT_IB_IF:
447 iface |= 0x0090; 471 iface |= 0x0090;
448 break; 472 break;
449 case SND_SOC_DAIFMT_IB_NF: 473 case SND_SOC_DAIFMT_IB_NF:
450 iface |= 0x0080; 474 iface |= 0x0080;
451 break; 475 break;
452 case SND_SOC_DAIFMT_NB_IF: 476 case SND_SOC_DAIFMT_NB_IF:
453 iface |= 0x0010; 477 iface |= 0x0010;
454 break; 478 break;
455 default: 479 default:
456 return -EINVAL; 480 return -EINVAL;
457 } 481 }
458 482
459 /* set iface */ 483 /* set iface */
460 snd_soc_component_write(component, WM8 484 snd_soc_component_write(component, WM8731_IFACE, iface);
461 return 0; 485 return 0;
462 } 486 }
463 487
464 static int wm8731_set_bias_level(struct snd_so 488 static int wm8731_set_bias_level(struct snd_soc_component *component,
465 enum snd_soc_ 489 enum snd_soc_bias_level level)
466 { 490 {
467 struct wm8731_priv *wm8731 = snd_soc_c 491 struct wm8731_priv *wm8731 = snd_soc_component_get_drvdata(component);
468 int ret; 492 int ret;
469 u16 reg; 493 u16 reg;
470 494
471 switch (level) { 495 switch (level) {
472 case SND_SOC_BIAS_ON: 496 case SND_SOC_BIAS_ON:
473 if (wm8731->mclk) { 497 if (wm8731->mclk) {
474 ret = clk_prepare_enab 498 ret = clk_prepare_enable(wm8731->mclk);
475 if (ret) 499 if (ret)
476 return ret; 500 return ret;
477 } 501 }
478 break; 502 break;
479 case SND_SOC_BIAS_PREPARE: 503 case SND_SOC_BIAS_PREPARE:
480 break; 504 break;
481 case SND_SOC_BIAS_STANDBY: 505 case SND_SOC_BIAS_STANDBY:
482 if (snd_soc_component_get_bias 506 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
483 ret = regulator_bulk_e 507 ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies),
484 508 wm8731->supplies);
485 if (ret != 0) 509 if (ret != 0)
486 return ret; 510 return ret;
487 511
488 regcache_sync(wm8731-> 512 regcache_sync(wm8731->regmap);
489 } 513 }
490 514
491 /* Clear PWROFF, gate CLKOUT, 515 /* Clear PWROFF, gate CLKOUT, everything else as-is */
492 reg = snd_soc_component_read(c !! 516 reg = snd_soc_component_read32(component, WM8731_PWR) & 0xff7f;
493 snd_soc_component_write(compon 517 snd_soc_component_write(component, WM8731_PWR, reg | 0x0040);
494 break; 518 break;
495 case SND_SOC_BIAS_OFF: 519 case SND_SOC_BIAS_OFF:
496 if (wm8731->mclk) 520 if (wm8731->mclk)
497 clk_disable_unprepare( 521 clk_disable_unprepare(wm8731->mclk);
498 snd_soc_component_write(compon 522 snd_soc_component_write(component, WM8731_PWR, 0xffff);
499 regulator_bulk_disable(ARRAY_S 523 regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies),
500 wm8731- 524 wm8731->supplies);
501 regcache_mark_dirty(wm8731->re 525 regcache_mark_dirty(wm8731->regmap);
502 break; 526 break;
503 } 527 }
504 return 0; 528 return 0;
505 } 529 }
506 530
507 static int wm8731_startup(struct snd_pcm_subst 531 static int wm8731_startup(struct snd_pcm_substream *substream,
508 struct snd_soc_dai *dai) 532 struct snd_soc_dai *dai)
509 { 533 {
510 struct wm8731_priv *wm8731 = snd_soc_c 534 struct wm8731_priv *wm8731 = snd_soc_component_get_drvdata(dai->component);
511 535
512 if (wm8731->constraints) 536 if (wm8731->constraints)
513 snd_pcm_hw_constraint_list(sub 537 snd_pcm_hw_constraint_list(substream->runtime, 0,
514 SND 538 SNDRV_PCM_HW_PARAM_RATE,
515 wm8 539 wm8731->constraints);
516 540
517 return 0; 541 return 0;
518 } 542 }
519 543
520 #define WM8731_RATES SNDRV_PCM_RATE_8000_96000 544 #define WM8731_RATES SNDRV_PCM_RATE_8000_96000
521 545
522 #define WM8731_FORMATS (SNDRV_PCM_FMTBIT_S16_L 546 #define WM8731_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
523 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FM 547 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
524 548
525 static const struct snd_soc_dai_ops wm8731_dai 549 static const struct snd_soc_dai_ops wm8731_dai_ops = {
526 .startup = wm8731_startup, 550 .startup = wm8731_startup,
527 .hw_params = wm8731_hw_params, 551 .hw_params = wm8731_hw_params,
528 .mute_stream = wm8731_mute, !! 552 .digital_mute = wm8731_mute,
529 .set_sysclk = wm8731_set_dai_syscl 553 .set_sysclk = wm8731_set_dai_sysclk,
530 .set_fmt = wm8731_set_dai_fmt, 554 .set_fmt = wm8731_set_dai_fmt,
531 .no_capture_mute = 1, <<
532 }; 555 };
533 556
534 static struct snd_soc_dai_driver wm8731_dai = 557 static struct snd_soc_dai_driver wm8731_dai = {
535 .name = "wm8731-hifi", 558 .name = "wm8731-hifi",
536 .playback = { 559 .playback = {
537 .stream_name = "Playback", 560 .stream_name = "Playback",
538 .channels_min = 1, 561 .channels_min = 1,
539 .channels_max = 2, 562 .channels_max = 2,
540 .rates = WM8731_RATES, 563 .rates = WM8731_RATES,
541 .formats = WM8731_FORMATS,}, 564 .formats = WM8731_FORMATS,},
542 .capture = { 565 .capture = {
543 .stream_name = "Capture", 566 .stream_name = "Capture",
544 .channels_min = 1, 567 .channels_min = 1,
545 .channels_max = 2, 568 .channels_max = 2,
546 .rates = WM8731_RATES, 569 .rates = WM8731_RATES,
547 .formats = WM8731_FORMATS,}, 570 .formats = WM8731_FORMATS,},
548 .ops = &wm8731_dai_ops, 571 .ops = &wm8731_dai_ops,
549 .symmetric_rate = 1, !! 572 .symmetric_rates = 1,
550 }; <<
551 <<
552 static const struct snd_soc_component_driver s <<
553 .set_bias_level = wm8731_set_b <<
554 .controls = wm8731_snd_c <<
555 .num_controls = ARRAY_SIZE(w <<
556 .dapm_widgets = wm8731_dapm_ <<
557 .num_dapm_widgets = ARRAY_SIZE(w <<
558 .dapm_routes = wm8731_inter <<
559 .num_dapm_routes = ARRAY_SIZE(w <<
560 .suspend_bias_off = 1, <<
561 .idle_bias_on = 1, <<
562 .use_pmdown_time = 1, <<
563 .endianness = 1, <<
564 }; 573 };
565 574
566 int wm8731_init(struct device *dev, struct wm8 !! 575 static int wm8731_request_supplies(struct device *dev,
>> 576 struct wm8731_priv *wm8731)
567 { 577 {
568 int ret = 0, i; 578 int ret = 0, i;
569 579
570 wm8731->mclk = devm_clk_get(dev, "mclk <<
571 if (IS_ERR(wm8731->mclk)) { <<
572 ret = PTR_ERR(wm8731->mclk); <<
573 if (ret == -ENOENT) { <<
574 wm8731->mclk = NULL; <<
575 dev_warn(dev, "Assumin <<
576 } else { <<
577 dev_err(dev, "Failed t <<
578 return ret; <<
579 } <<
580 } <<
581 <<
582 mutex_init(&wm8731->lock); <<
583 <<
584 for (i = 0; i < ARRAY_SIZE(wm8731->sup 580 for (i = 0; i < ARRAY_SIZE(wm8731->supplies); i++)
585 wm8731->supplies[i].supply = w 581 wm8731->supplies[i].supply = wm8731_supply_names[i];
586 582
587 ret = devm_regulator_bulk_get(dev, ARR 583 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(wm8731->supplies),
588 wm8731->suppl 584 wm8731->supplies);
589 if (ret != 0) { 585 if (ret != 0) {
590 dev_err(dev, "Failed to reques 586 dev_err(dev, "Failed to request supplies: %d\n", ret);
591 return ret; 587 return ret;
592 } 588 }
593 589
594 ret = regulator_bulk_enable(ARRAY_SIZE 590 ret = regulator_bulk_enable(ARRAY_SIZE(wm8731->supplies),
595 wm8731->su 591 wm8731->supplies);
596 if (ret != 0) { 592 if (ret != 0) {
597 dev_err(dev, "Failed to enable 593 dev_err(dev, "Failed to enable supplies: %d\n", ret);
598 return ret; 594 return ret;
599 } 595 }
600 596
>> 597 return 0;
>> 598 }
>> 599
>> 600 static int wm8731_hw_init(struct device *dev, struct wm8731_priv *wm8731)
>> 601 {
>> 602 int ret = 0;
>> 603
601 ret = wm8731_reset(wm8731->regmap); 604 ret = wm8731_reset(wm8731->regmap);
602 if (ret < 0) { 605 if (ret < 0) {
603 dev_err(dev, "Failed to issue 606 dev_err(dev, "Failed to issue reset: %d\n", ret);
604 goto err_regulator_enable; 607 goto err_regulator_enable;
605 } 608 }
606 609
607 /* Clear POWEROFF, keep everything els 610 /* Clear POWEROFF, keep everything else disabled */
608 regmap_write(wm8731->regmap, WM8731_PW 611 regmap_write(wm8731->regmap, WM8731_PWR, 0x7f);
609 612
610 /* Latch the update bits */ 613 /* Latch the update bits */
611 regmap_update_bits(wm8731->regmap, WM8 614 regmap_update_bits(wm8731->regmap, WM8731_LOUT1V, 0x100, 0);
612 regmap_update_bits(wm8731->regmap, WM8 615 regmap_update_bits(wm8731->regmap, WM8731_ROUT1V, 0x100, 0);
613 regmap_update_bits(wm8731->regmap, WM8 616 regmap_update_bits(wm8731->regmap, WM8731_LINVOL, 0x100, 0);
614 regmap_update_bits(wm8731->regmap, WM8 617 regmap_update_bits(wm8731->regmap, WM8731_RINVOL, 0x100, 0);
615 618
616 /* Disable bypass path by default */ 619 /* Disable bypass path by default */
617 regmap_update_bits(wm8731->regmap, WM8 620 regmap_update_bits(wm8731->regmap, WM8731_APANA, 0x8, 0);
618 621
619 regcache_mark_dirty(wm8731->regmap); 622 regcache_mark_dirty(wm8731->regmap);
620 623
621 ret = devm_snd_soc_register_component( <<
622 &soc_component_dev_wm8 <<
623 if (ret != 0) { <<
624 dev_err(dev, "Failed to regist <<
625 goto err_regulator_enable; <<
626 } <<
627 <<
628 return 0; <<
629 <<
630 err_regulator_enable: 624 err_regulator_enable:
631 /* Regulators will be enabled by bias 625 /* Regulators will be enabled by bias management */
632 regulator_bulk_disable(ARRAY_SIZE(wm87 626 regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies);
633 627
634 return ret; 628 return ret;
635 } 629 }
636 EXPORT_SYMBOL_GPL(wm8731_init); <<
637 630
638 const struct regmap_config wm8731_regmap = { !! 631 static const struct snd_soc_component_driver soc_component_dev_wm8731 = {
>> 632 .set_bias_level = wm8731_set_bias_level,
>> 633 .controls = wm8731_snd_controls,
>> 634 .num_controls = ARRAY_SIZE(wm8731_snd_controls),
>> 635 .dapm_widgets = wm8731_dapm_widgets,
>> 636 .num_dapm_widgets = ARRAY_SIZE(wm8731_dapm_widgets),
>> 637 .dapm_routes = wm8731_intercon,
>> 638 .num_dapm_routes = ARRAY_SIZE(wm8731_intercon),
>> 639 .suspend_bias_off = 1,
>> 640 .idle_bias_on = 1,
>> 641 .use_pmdown_time = 1,
>> 642 .endianness = 1,
>> 643 .non_legacy_dai_naming = 1,
>> 644 };
>> 645
>> 646 static const struct of_device_id wm8731_of_match[] = {
>> 647 { .compatible = "wlf,wm8731", },
>> 648 { }
>> 649 };
>> 650
>> 651 MODULE_DEVICE_TABLE(of, wm8731_of_match);
>> 652
>> 653 static const struct regmap_config wm8731_regmap = {
639 .reg_bits = 7, 654 .reg_bits = 7,
640 .val_bits = 9, 655 .val_bits = 9,
641 656
642 .max_register = WM8731_RESET, 657 .max_register = WM8731_RESET,
643 .volatile_reg = wm8731_volatile, 658 .volatile_reg = wm8731_volatile,
644 659
645 .cache_type = REGCACHE_MAPLE, !! 660 .cache_type = REGCACHE_RBTREE,
646 .reg_defaults = wm8731_reg_defaults, 661 .reg_defaults = wm8731_reg_defaults,
647 .num_reg_defaults = ARRAY_SIZE(wm8731_ 662 .num_reg_defaults = ARRAY_SIZE(wm8731_reg_defaults),
648 }; 663 };
649 EXPORT_SYMBOL_GPL(wm8731_regmap); !! 664
>> 665 #if defined(CONFIG_SPI_MASTER)
>> 666 static int wm8731_spi_probe(struct spi_device *spi)
>> 667 {
>> 668 struct wm8731_priv *wm8731;
>> 669 int ret;
>> 670
>> 671 wm8731 = devm_kzalloc(&spi->dev, sizeof(*wm8731), GFP_KERNEL);
>> 672 if (wm8731 == NULL)
>> 673 return -ENOMEM;
>> 674
>> 675 wm8731->mclk = devm_clk_get(&spi->dev, "mclk");
>> 676 if (IS_ERR(wm8731->mclk)) {
>> 677 ret = PTR_ERR(wm8731->mclk);
>> 678 if (ret == -ENOENT) {
>> 679 wm8731->mclk = NULL;
>> 680 dev_warn(&spi->dev, "Assuming static MCLK\n");
>> 681 } else {
>> 682 dev_err(&spi->dev, "Failed to get MCLK: %d\n",
>> 683 ret);
>> 684 return ret;
>> 685 }
>> 686 }
>> 687
>> 688 mutex_init(&wm8731->lock);
>> 689
>> 690 spi_set_drvdata(spi, wm8731);
>> 691
>> 692 ret = wm8731_request_supplies(&spi->dev, wm8731);
>> 693 if (ret != 0)
>> 694 return ret;
>> 695
>> 696 wm8731->regmap = devm_regmap_init_spi(spi, &wm8731_regmap);
>> 697 if (IS_ERR(wm8731->regmap)) {
>> 698 ret = PTR_ERR(wm8731->regmap);
>> 699 dev_err(&spi->dev, "Failed to allocate register map: %d\n",
>> 700 ret);
>> 701 return ret;
>> 702 }
>> 703
>> 704 ret = wm8731_hw_init(&spi->dev, wm8731);
>> 705 if (ret != 0)
>> 706 return ret;
>> 707
>> 708 ret = devm_snd_soc_register_component(&spi->dev,
>> 709 &soc_component_dev_wm8731, &wm8731_dai, 1);
>> 710 if (ret != 0) {
>> 711 dev_err(&spi->dev, "Failed to register CODEC: %d\n", ret);
>> 712 return ret;
>> 713 }
>> 714
>> 715 return 0;
>> 716 }
>> 717
>> 718 static int wm8731_spi_remove(struct spi_device *spi)
>> 719 {
>> 720 return 0;
>> 721 }
>> 722
>> 723 static struct spi_driver wm8731_spi_driver = {
>> 724 .driver = {
>> 725 .name = "wm8731",
>> 726 .of_match_table = wm8731_of_match,
>> 727 },
>> 728 .probe = wm8731_spi_probe,
>> 729 .remove = wm8731_spi_remove,
>> 730 };
>> 731 #endif /* CONFIG_SPI_MASTER */
>> 732
>> 733 #if IS_ENABLED(CONFIG_I2C)
>> 734 static int wm8731_i2c_probe(struct i2c_client *i2c,
>> 735 const struct i2c_device_id *id)
>> 736 {
>> 737 struct wm8731_priv *wm8731;
>> 738 int ret;
>> 739
>> 740 wm8731 = devm_kzalloc(&i2c->dev, sizeof(struct wm8731_priv),
>> 741 GFP_KERNEL);
>> 742 if (wm8731 == NULL)
>> 743 return -ENOMEM;
>> 744
>> 745 wm8731->mclk = devm_clk_get(&i2c->dev, "mclk");
>> 746 if (IS_ERR(wm8731->mclk)) {
>> 747 ret = PTR_ERR(wm8731->mclk);
>> 748 if (ret == -ENOENT) {
>> 749 wm8731->mclk = NULL;
>> 750 dev_warn(&i2c->dev, "Assuming static MCLK\n");
>> 751 } else {
>> 752 dev_err(&i2c->dev, "Failed to get MCLK: %d\n",
>> 753 ret);
>> 754 return ret;
>> 755 }
>> 756 }
>> 757
>> 758 mutex_init(&wm8731->lock);
>> 759
>> 760 i2c_set_clientdata(i2c, wm8731);
>> 761
>> 762 ret = wm8731_request_supplies(&i2c->dev, wm8731);
>> 763 if (ret != 0)
>> 764 return ret;
>> 765
>> 766 wm8731->regmap = devm_regmap_init_i2c(i2c, &wm8731_regmap);
>> 767 if (IS_ERR(wm8731->regmap)) {
>> 768 ret = PTR_ERR(wm8731->regmap);
>> 769 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
>> 770 ret);
>> 771 return ret;
>> 772 }
>> 773
>> 774 ret = wm8731_hw_init(&i2c->dev, wm8731);
>> 775 if (ret != 0)
>> 776 return ret;
>> 777
>> 778 ret = devm_snd_soc_register_component(&i2c->dev,
>> 779 &soc_component_dev_wm8731, &wm8731_dai, 1);
>> 780 if (ret != 0) {
>> 781 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
>> 782 return ret;
>> 783 }
>> 784
>> 785 return 0;
>> 786 }
>> 787
>> 788 static int wm8731_i2c_remove(struct i2c_client *client)
>> 789 {
>> 790 return 0;
>> 791 }
>> 792
>> 793 static const struct i2c_device_id wm8731_i2c_id[] = {
>> 794 { "wm8731", 0 },
>> 795 { }
>> 796 };
>> 797 MODULE_DEVICE_TABLE(i2c, wm8731_i2c_id);
>> 798
>> 799 static struct i2c_driver wm8731_i2c_driver = {
>> 800 .driver = {
>> 801 .name = "wm8731",
>> 802 .of_match_table = wm8731_of_match,
>> 803 },
>> 804 .probe = wm8731_i2c_probe,
>> 805 .remove = wm8731_i2c_remove,
>> 806 .id_table = wm8731_i2c_id,
>> 807 };
>> 808 #endif
>> 809
>> 810 static int __init wm8731_modinit(void)
>> 811 {
>> 812 int ret = 0;
>> 813 #if IS_ENABLED(CONFIG_I2C)
>> 814 ret = i2c_add_driver(&wm8731_i2c_driver);
>> 815 if (ret != 0) {
>> 816 printk(KERN_ERR "Failed to register WM8731 I2C driver: %d\n",
>> 817 ret);
>> 818 }
>> 819 #endif
>> 820 #if defined(CONFIG_SPI_MASTER)
>> 821 ret = spi_register_driver(&wm8731_spi_driver);
>> 822 if (ret != 0) {
>> 823 printk(KERN_ERR "Failed to register WM8731 SPI driver: %d\n",
>> 824 ret);
>> 825 }
>> 826 #endif
>> 827 return ret;
>> 828 }
>> 829 module_init(wm8731_modinit);
>> 830
>> 831 static void __exit wm8731_exit(void)
>> 832 {
>> 833 #if IS_ENABLED(CONFIG_I2C)
>> 834 i2c_del_driver(&wm8731_i2c_driver);
>> 835 #endif
>> 836 #if defined(CONFIG_SPI_MASTER)
>> 837 spi_unregister_driver(&wm8731_spi_driver);
>> 838 #endif
>> 839 }
>> 840 module_exit(wm8731_exit);
650 841
651 MODULE_DESCRIPTION("ASoC WM8731 driver"); 842 MODULE_DESCRIPTION("ASoC WM8731 driver");
652 MODULE_AUTHOR("Richard Purdie"); 843 MODULE_AUTHOR("Richard Purdie");
653 MODULE_LICENSE("GPL"); 844 MODULE_LICENSE("GPL");
654 845
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