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