Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 1 | /* |
| 2 | * tas2552.c - ALSA SoC Texas Instruments TAS2552 Mono Audio Amplifier |
| 3 | * |
| 4 | * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com |
| 5 | * |
| 6 | * Author: Dan Murphy <dmurphy@ti.com> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License |
| 10 | * version 2 as published by the Free Software Foundation. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, but |
| 13 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * General Public License for more details. |
| 16 | */ |
| 17 | |
| 18 | #include <linux/module.h> |
| 19 | #include <linux/errno.h> |
| 20 | #include <linux/device.h> |
| 21 | #include <linux/i2c.h> |
| 22 | #include <linux/gpio.h> |
| 23 | #include <linux/of_gpio.h> |
| 24 | #include <linux/pm_runtime.h> |
| 25 | #include <linux/regmap.h> |
| 26 | #include <linux/slab.h> |
| 27 | |
| 28 | #include <linux/gpio/consumer.h> |
| 29 | #include <linux/regulator/consumer.h> |
| 30 | |
| 31 | #include <sound/pcm.h> |
| 32 | #include <sound/pcm_params.h> |
| 33 | #include <sound/soc.h> |
| 34 | #include <sound/soc-dapm.h> |
| 35 | #include <sound/tlv.h> |
| 36 | #include <sound/tas2552-plat.h> |
Peter Ujfalusi | 9d87a88 | 2015-06-04 16:04:22 +0300 | [diff] [blame] | 37 | #include <dt-bindings/sound/tas2552.h> |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 38 | |
| 39 | #include "tas2552.h" |
| 40 | |
Axel Lin | c418a84a | 2015-07-05 17:48:29 +0800 | [diff] [blame] | 41 | static const struct reg_default tas2552_reg_defs[] = { |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 42 | {TAS2552_CFG_1, 0x22}, |
| 43 | {TAS2552_CFG_3, 0x80}, |
| 44 | {TAS2552_DOUT, 0x00}, |
| 45 | {TAS2552_OUTPUT_DATA, 0xc0}, |
| 46 | {TAS2552_PDM_CFG, 0x01}, |
| 47 | {TAS2552_PGA_GAIN, 0x00}, |
Peter Ujfalusi | 2a9dd1d | 2015-06-08 15:19:51 +0300 | [diff] [blame] | 48 | {TAS2552_BOOST_APT_CTRL, 0x0f}, |
Peter Ujfalusi | 7d78502 | 2015-06-04 16:04:28 +0300 | [diff] [blame] | 49 | {TAS2552_RESERVED_0D, 0xbe}, |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 50 | {TAS2552_LIMIT_RATE_HYS, 0x08}, |
| 51 | {TAS2552_CFG_2, 0xef}, |
| 52 | {TAS2552_SER_CTRL_1, 0x00}, |
| 53 | {TAS2552_SER_CTRL_2, 0x00}, |
| 54 | {TAS2552_PLL_CTRL_1, 0x10}, |
| 55 | {TAS2552_PLL_CTRL_2, 0x00}, |
| 56 | {TAS2552_PLL_CTRL_3, 0x00}, |
| 57 | {TAS2552_BTIP, 0x8f}, |
| 58 | {TAS2552_BTS_CTRL, 0x80}, |
| 59 | {TAS2552_LIMIT_RELEASE, 0x04}, |
| 60 | {TAS2552_LIMIT_INT_COUNT, 0x00}, |
| 61 | {TAS2552_EDGE_RATE_CTRL, 0x40}, |
| 62 | {TAS2552_VBAT_DATA, 0x00}, |
| 63 | }; |
| 64 | |
| 65 | #define TAS2552_NUM_SUPPLIES 3 |
| 66 | static const char *tas2552_supply_names[TAS2552_NUM_SUPPLIES] = { |
| 67 | "vbat", /* vbat voltage */ |
| 68 | "iovdd", /* I/O Voltage */ |
| 69 | "avdd", /* Analog DAC Voltage */ |
| 70 | }; |
| 71 | |
| 72 | struct tas2552_data { |
| 73 | struct snd_soc_codec *codec; |
| 74 | struct regmap *regmap; |
| 75 | struct i2c_client *tas2552_client; |
| 76 | struct regulator_bulk_data supplies[TAS2552_NUM_SUPPLIES]; |
| 77 | struct gpio_desc *enable_gpio; |
| 78 | unsigned char regs[TAS2552_VBAT_DATA]; |
Peter Ujfalusi | 16bd395 | 2015-06-04 16:04:20 +0300 | [diff] [blame] | 79 | unsigned int pll_clkin; |
Peter Ujfalusi | 1014f7e | 2015-06-08 15:19:48 +0300 | [diff] [blame] | 80 | int pll_clk_id; |
Peter Ujfalusi | 9d87a88 | 2015-06-04 16:04:22 +0300 | [diff] [blame] | 81 | unsigned int pdm_clk; |
Peter Ujfalusi | 1014f7e | 2015-06-08 15:19:48 +0300 | [diff] [blame] | 82 | int pdm_clk_id; |
Peter Ujfalusi | 3f747a8 | 2015-06-04 16:04:25 +0300 | [diff] [blame] | 83 | |
| 84 | unsigned int dai_fmt; |
| 85 | unsigned int tdm_delay; |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 86 | }; |
| 87 | |
Peter Ujfalusi | 7d78502 | 2015-06-04 16:04:28 +0300 | [diff] [blame] | 88 | static int tas2552_post_event(struct snd_soc_dapm_widget *w, |
| 89 | struct snd_kcontrol *kcontrol, int event) |
| 90 | { |
| 91 | struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm); |
| 92 | |
| 93 | switch (event) { |
| 94 | case SND_SOC_DAPM_POST_PMU: |
| 95 | snd_soc_write(codec, TAS2552_RESERVED_0D, 0xc0); |
| 96 | snd_soc_update_bits(codec, TAS2552_LIMIT_RATE_HYS, (1 << 5), |
| 97 | (1 << 5)); |
| 98 | snd_soc_update_bits(codec, TAS2552_CFG_2, 1, 0); |
| 99 | snd_soc_update_bits(codec, TAS2552_CFG_1, TAS2552_SWS, 0); |
| 100 | break; |
| 101 | case SND_SOC_DAPM_POST_PMD: |
| 102 | snd_soc_update_bits(codec, TAS2552_CFG_1, TAS2552_SWS, |
| 103 | TAS2552_SWS); |
| 104 | snd_soc_update_bits(codec, TAS2552_CFG_2, 1, 1); |
| 105 | snd_soc_update_bits(codec, TAS2552_LIMIT_RATE_HYS, (1 << 5), 0); |
| 106 | snd_soc_write(codec, TAS2552_RESERVED_0D, 0xbe); |
| 107 | break; |
| 108 | } |
| 109 | return 0; |
| 110 | } |
Dan Murphy | a7a8e99 | 2014-08-01 10:57:04 -0500 | [diff] [blame] | 111 | |
Peter Ujfalusi | 609e713 | 2015-06-04 16:04:26 +0300 | [diff] [blame] | 112 | /* Input mux controls */ |
| 113 | static const char * const tas2552_input_texts[] = { |
| 114 | "Digital", "Analog" }; |
Dan Murphy | a7a8e99 | 2014-08-01 10:57:04 -0500 | [diff] [blame] | 115 | static SOC_ENUM_SINGLE_DECL(tas2552_input_mux_enum, TAS2552_CFG_3, 7, |
| 116 | tas2552_input_texts); |
| 117 | |
Peter Ujfalusi | 609e713 | 2015-06-04 16:04:26 +0300 | [diff] [blame] | 118 | static const struct snd_kcontrol_new tas2552_input_mux_control = |
| 119 | SOC_DAPM_ENUM("Route", tas2552_input_mux_enum); |
Dan Murphy | a7a8e99 | 2014-08-01 10:57:04 -0500 | [diff] [blame] | 120 | |
| 121 | static const struct snd_soc_dapm_widget tas2552_dapm_widgets[] = |
| 122 | { |
| 123 | SND_SOC_DAPM_INPUT("IN"), |
| 124 | |
| 125 | /* MUX Controls */ |
| 126 | SND_SOC_DAPM_MUX("Input selection", SND_SOC_NOPM, 0, 0, |
Peter Ujfalusi | 609e713 | 2015-06-04 16:04:26 +0300 | [diff] [blame] | 127 | &tas2552_input_mux_control), |
Dan Murphy | a7a8e99 | 2014-08-01 10:57:04 -0500 | [diff] [blame] | 128 | |
| 129 | SND_SOC_DAPM_AIF_IN("DAC IN", "DAC Playback", 0, SND_SOC_NOPM, 0, 0), |
| 130 | SND_SOC_DAPM_DAC("DAC", NULL, SND_SOC_NOPM, 0, 0), |
| 131 | SND_SOC_DAPM_OUT_DRV("ClassD", TAS2552_CFG_2, 7, 0, NULL, 0), |
| 132 | SND_SOC_DAPM_SUPPLY("PLL", TAS2552_CFG_2, 3, 0, NULL, 0), |
Peter Ujfalusi | 7d78502 | 2015-06-04 16:04:28 +0300 | [diff] [blame] | 133 | SND_SOC_DAPM_POST("Post Event", tas2552_post_event), |
Dan Murphy | a7a8e99 | 2014-08-01 10:57:04 -0500 | [diff] [blame] | 134 | |
| 135 | SND_SOC_DAPM_OUTPUT("OUT") |
| 136 | }; |
| 137 | |
| 138 | static const struct snd_soc_dapm_route tas2552_audio_map[] = { |
| 139 | {"DAC", NULL, "DAC IN"}, |
| 140 | {"Input selection", "Digital", "DAC"}, |
| 141 | {"Input selection", "Analog", "IN"}, |
| 142 | {"ClassD", NULL, "Input selection"}, |
| 143 | {"OUT", NULL, "ClassD"}, |
| 144 | {"ClassD", NULL, "PLL"}, |
| 145 | }; |
| 146 | |
Rafael J. Wysocki | 641d334 | 2014-12-13 00:42:18 +0100 | [diff] [blame] | 147 | #ifdef CONFIG_PM |
Peter Ujfalusi | b94525b | 2015-06-08 15:19:55 +0300 | [diff] [blame] | 148 | static void tas2552_sw_shutdown(struct tas2552_data *tas2552, int sw_shutdown) |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 149 | { |
Peter Ujfalusi | dd6e305 | 2015-06-04 16:04:19 +0300 | [diff] [blame] | 150 | u8 cfg1_reg = 0; |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 151 | |
Peter Ujfalusi | b94525b | 2015-06-08 15:19:55 +0300 | [diff] [blame] | 152 | if (!tas2552->codec) |
Peter Ujfalusi | 80ba266 | 2015-06-04 16:04:14 +0300 | [diff] [blame] | 153 | return; |
| 154 | |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 155 | if (sw_shutdown) |
Peter Ujfalusi | 7de544f | 2015-06-04 16:04:17 +0300 | [diff] [blame] | 156 | cfg1_reg = TAS2552_SWS; |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 157 | |
Peter Ujfalusi | b94525b | 2015-06-08 15:19:55 +0300 | [diff] [blame] | 158 | snd_soc_update_bits(tas2552->codec, TAS2552_CFG_1, TAS2552_SWS, |
Peter Ujfalusi | 7de544f | 2015-06-04 16:04:17 +0300 | [diff] [blame] | 159 | cfg1_reg); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 160 | } |
Thierry Reding | be1aa3e | 2014-10-02 09:28:00 +0200 | [diff] [blame] | 161 | #endif |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 162 | |
Peter Ujfalusi | 1014f7e | 2015-06-08 15:19:48 +0300 | [diff] [blame] | 163 | static int tas2552_setup_pll(struct snd_soc_codec *codec, |
| 164 | struct snd_pcm_hw_params *params) |
| 165 | { |
| 166 | struct tas2552_data *tas2552 = dev_get_drvdata(codec->dev); |
| 167 | bool bypass_pll = false; |
| 168 | unsigned int pll_clk = params_rate(params) * 512; |
| 169 | unsigned int pll_clkin = tas2552->pll_clkin; |
| 170 | u8 pll_enable; |
| 171 | |
| 172 | if (!pll_clkin) { |
| 173 | if (tas2552->pll_clk_id != TAS2552_PLL_CLKIN_BCLK) |
| 174 | return -EINVAL; |
| 175 | |
| 176 | pll_clkin = snd_soc_params_to_bclk(params); |
| 177 | pll_clkin += tas2552->tdm_delay; |
| 178 | } |
| 179 | |
| 180 | pll_enable = snd_soc_read(codec, TAS2552_CFG_2) & TAS2552_PLL_ENABLE; |
| 181 | snd_soc_update_bits(codec, TAS2552_CFG_2, TAS2552_PLL_ENABLE, 0); |
| 182 | |
| 183 | if (pll_clkin == pll_clk) |
| 184 | bypass_pll = true; |
| 185 | |
| 186 | if (bypass_pll) { |
| 187 | /* By pass the PLL configuration */ |
| 188 | snd_soc_update_bits(codec, TAS2552_PLL_CTRL_2, |
| 189 | TAS2552_PLL_BYPASS, TAS2552_PLL_BYPASS); |
| 190 | } else { |
| 191 | /* Fill in the PLL control registers for J & D |
| 192 | * pll_clk = (.5 * pll_clkin * J.D) / 2^p |
| 193 | * Need to fill in J and D here based on incoming freq |
| 194 | */ |
| 195 | unsigned int d; |
| 196 | u8 j; |
| 197 | u8 pll_sel = (tas2552->pll_clk_id << 3) & TAS2552_PLL_SRC_MASK; |
| 198 | u8 p = snd_soc_read(codec, TAS2552_PLL_CTRL_1); |
| 199 | |
| 200 | p = (p >> 7); |
| 201 | |
| 202 | recalc: |
| 203 | j = (pll_clk * 2 * (1 << p)) / pll_clkin; |
| 204 | d = (pll_clk * 2 * (1 << p)) % pll_clkin; |
| 205 | d /= (pll_clkin / 10000); |
| 206 | |
| 207 | if (d && (pll_clkin < 512000 || pll_clkin > 9200000)) { |
| 208 | if (tas2552->pll_clk_id == TAS2552_PLL_CLKIN_BCLK) { |
| 209 | pll_clkin = 1800000; |
| 210 | pll_sel = (TAS2552_PLL_CLKIN_1_8_FIXED << 3) & |
| 211 | TAS2552_PLL_SRC_MASK; |
| 212 | } else { |
| 213 | pll_clkin = snd_soc_params_to_bclk(params); |
| 214 | pll_clkin += tas2552->tdm_delay; |
| 215 | pll_sel = (TAS2552_PLL_CLKIN_BCLK << 3) & |
| 216 | TAS2552_PLL_SRC_MASK; |
| 217 | } |
| 218 | goto recalc; |
| 219 | } |
| 220 | |
| 221 | snd_soc_update_bits(codec, TAS2552_CFG_1, TAS2552_PLL_SRC_MASK, |
| 222 | pll_sel); |
| 223 | |
| 224 | snd_soc_update_bits(codec, TAS2552_PLL_CTRL_1, |
| 225 | TAS2552_PLL_J_MASK, j); |
| 226 | /* Will clear the PLL_BYPASS bit */ |
| 227 | snd_soc_write(codec, TAS2552_PLL_CTRL_2, |
| 228 | TAS2552_PLL_D_UPPER(d)); |
| 229 | snd_soc_write(codec, TAS2552_PLL_CTRL_3, |
| 230 | TAS2552_PLL_D_LOWER(d)); |
| 231 | } |
| 232 | |
| 233 | /* Restore PLL status */ |
| 234 | snd_soc_update_bits(codec, TAS2552_CFG_2, TAS2552_PLL_ENABLE, |
| 235 | pll_enable); |
| 236 | |
| 237 | return 0; |
| 238 | } |
| 239 | |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 240 | static int tas2552_hw_params(struct snd_pcm_substream *substream, |
| 241 | struct snd_pcm_hw_params *params, |
| 242 | struct snd_soc_dai *dai) |
| 243 | { |
| 244 | struct snd_soc_codec *codec = dai->codec; |
| 245 | struct tas2552_data *tas2552 = dev_get_drvdata(codec->dev); |
Peter Ujfalusi | d20b098 | 2015-06-04 16:04:29 +0300 | [diff] [blame] | 246 | int cpf; |
Peter Ujfalusi | a571cb1 | 2015-06-04 16:04:30 +0300 | [diff] [blame] | 247 | u8 ser_ctrl1_reg, wclk_rate; |
Peter Ujfalusi | d20b098 | 2015-06-04 16:04:29 +0300 | [diff] [blame] | 248 | |
| 249 | switch (params_width(params)) { |
| 250 | case 16: |
| 251 | ser_ctrl1_reg = TAS2552_WORDLENGTH_16BIT; |
| 252 | cpf = 32 + tas2552->tdm_delay; |
| 253 | break; |
| 254 | case 20: |
| 255 | ser_ctrl1_reg = TAS2552_WORDLENGTH_20BIT; |
| 256 | cpf = 64 + tas2552->tdm_delay; |
| 257 | break; |
| 258 | case 24: |
| 259 | ser_ctrl1_reg = TAS2552_WORDLENGTH_24BIT; |
| 260 | cpf = 64 + tas2552->tdm_delay; |
| 261 | break; |
| 262 | case 32: |
| 263 | ser_ctrl1_reg = TAS2552_WORDLENGTH_32BIT; |
| 264 | cpf = 64 + tas2552->tdm_delay; |
| 265 | break; |
| 266 | default: |
| 267 | dev_err(codec->dev, "Not supported sample size: %d\n", |
| 268 | params_width(params)); |
| 269 | return -EINVAL; |
| 270 | } |
| 271 | |
| 272 | if (cpf <= 32) |
| 273 | ser_ctrl1_reg |= TAS2552_CLKSPERFRAME_32; |
| 274 | else if (cpf <= 64) |
| 275 | ser_ctrl1_reg |= TAS2552_CLKSPERFRAME_64; |
| 276 | else if (cpf <= 128) |
| 277 | ser_ctrl1_reg |= TAS2552_CLKSPERFRAME_128; |
| 278 | else |
| 279 | ser_ctrl1_reg |= TAS2552_CLKSPERFRAME_256; |
| 280 | |
| 281 | snd_soc_update_bits(codec, TAS2552_SER_CTRL_1, |
| 282 | TAS2552_WORDLENGTH_MASK | TAS2552_CLKSPERFRAME_MASK, |
| 283 | ser_ctrl1_reg); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 284 | |
Peter Ujfalusi | a571cb1 | 2015-06-04 16:04:30 +0300 | [diff] [blame] | 285 | switch (params_rate(params)) { |
| 286 | case 8000: |
| 287 | wclk_rate = TAS2552_WCLK_FREQ_8KHZ; |
| 288 | break; |
| 289 | case 11025: |
| 290 | case 12000: |
| 291 | wclk_rate = TAS2552_WCLK_FREQ_11_12KHZ; |
| 292 | break; |
| 293 | case 16000: |
| 294 | wclk_rate = TAS2552_WCLK_FREQ_16KHZ; |
| 295 | break; |
| 296 | case 22050: |
| 297 | case 24000: |
| 298 | wclk_rate = TAS2552_WCLK_FREQ_22_24KHZ; |
| 299 | break; |
| 300 | case 32000: |
| 301 | wclk_rate = TAS2552_WCLK_FREQ_32KHZ; |
| 302 | break; |
| 303 | case 44100: |
| 304 | case 48000: |
| 305 | wclk_rate = TAS2552_WCLK_FREQ_44_48KHZ; |
| 306 | break; |
| 307 | case 88200: |
| 308 | case 96000: |
| 309 | wclk_rate = TAS2552_WCLK_FREQ_88_96KHZ; |
| 310 | break; |
| 311 | case 176400: |
| 312 | case 192000: |
| 313 | wclk_rate = TAS2552_WCLK_FREQ_176_192KHZ; |
| 314 | break; |
| 315 | default: |
| 316 | dev_err(codec->dev, "Not supported sample rate: %d\n", |
| 317 | params_rate(params)); |
| 318 | return -EINVAL; |
| 319 | } |
| 320 | |
| 321 | snd_soc_update_bits(codec, TAS2552_CFG_3, TAS2552_WCLK_FREQ_MASK, |
| 322 | wclk_rate); |
| 323 | |
Peter Ujfalusi | 1014f7e | 2015-06-08 15:19:48 +0300 | [diff] [blame] | 324 | return tas2552_setup_pll(codec, params); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 325 | } |
| 326 | |
Peter Ujfalusi | 1b68c7d | 2015-06-04 16:04:24 +0300 | [diff] [blame] | 327 | #define TAS2552_DAI_FMT_MASK (TAS2552_BCLKDIR | \ |
| 328 | TAS2552_WCLKDIR | \ |
| 329 | TAS2552_DATAFORMAT_MASK) |
Peter Ujfalusi | 3f747a8 | 2015-06-04 16:04:25 +0300 | [diff] [blame] | 330 | static int tas2552_prepare(struct snd_pcm_substream *substream, |
| 331 | struct snd_soc_dai *dai) |
| 332 | { |
| 333 | struct snd_soc_codec *codec = dai->codec; |
| 334 | struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec); |
| 335 | int delay = 0; |
| 336 | |
| 337 | /* TDM slot selection only valid in DSP_A/_B mode */ |
| 338 | if (tas2552->dai_fmt == SND_SOC_DAIFMT_DSP_A) |
| 339 | delay += (tas2552->tdm_delay + 1); |
| 340 | else if (tas2552->dai_fmt == SND_SOC_DAIFMT_DSP_B) |
| 341 | delay += tas2552->tdm_delay; |
| 342 | |
| 343 | /* Configure data delay */ |
| 344 | snd_soc_write(codec, TAS2552_SER_CTRL_2, delay); |
| 345 | |
| 346 | return 0; |
| 347 | } |
| 348 | |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 349 | static int tas2552_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) |
| 350 | { |
| 351 | struct snd_soc_codec *codec = dai->codec; |
Peter Ujfalusi | 3f747a8 | 2015-06-04 16:04:25 +0300 | [diff] [blame] | 352 | struct tas2552_data *tas2552 = dev_get_drvdata(codec->dev); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 353 | u8 serial_format; |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 354 | |
| 355 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| 356 | case SND_SOC_DAIFMT_CBS_CFS: |
| 357 | serial_format = 0x00; |
| 358 | break; |
| 359 | case SND_SOC_DAIFMT_CBS_CFM: |
Peter Ujfalusi | 1b68c7d | 2015-06-04 16:04:24 +0300 | [diff] [blame] | 360 | serial_format = TAS2552_WCLKDIR; |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 361 | break; |
| 362 | case SND_SOC_DAIFMT_CBM_CFS: |
Peter Ujfalusi | 1b68c7d | 2015-06-04 16:04:24 +0300 | [diff] [blame] | 363 | serial_format = TAS2552_BCLKDIR; |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 364 | break; |
| 365 | case SND_SOC_DAIFMT_CBM_CFM: |
Peter Ujfalusi | 1b68c7d | 2015-06-04 16:04:24 +0300 | [diff] [blame] | 366 | serial_format = (TAS2552_BCLKDIR | TAS2552_WCLKDIR); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 367 | break; |
| 368 | default: |
| 369 | dev_vdbg(codec->dev, "DAI Format master is not found\n"); |
| 370 | return -EINVAL; |
| 371 | } |
| 372 | |
Peter Ujfalusi | 4c33137 | 2015-06-04 16:04:23 +0300 | [diff] [blame] | 373 | switch (fmt & (SND_SOC_DAIFMT_FORMAT_MASK | |
| 374 | SND_SOC_DAIFMT_INV_MASK)) { |
| 375 | case (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF): |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 376 | break; |
Peter Ujfalusi | 4c33137 | 2015-06-04 16:04:23 +0300 | [diff] [blame] | 377 | case (SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF): |
Peter Ujfalusi | 4c33137 | 2015-06-04 16:04:23 +0300 | [diff] [blame] | 378 | case (SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF): |
Peter Ujfalusi | 1b68c7d | 2015-06-04 16:04:24 +0300 | [diff] [blame] | 379 | serial_format |= TAS2552_DATAFORMAT_DSP; |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 380 | break; |
Peter Ujfalusi | 4c33137 | 2015-06-04 16:04:23 +0300 | [diff] [blame] | 381 | case (SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_NB_NF): |
Peter Ujfalusi | 1b68c7d | 2015-06-04 16:04:24 +0300 | [diff] [blame] | 382 | serial_format |= TAS2552_DATAFORMAT_RIGHT_J; |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 383 | break; |
Peter Ujfalusi | 4c33137 | 2015-06-04 16:04:23 +0300 | [diff] [blame] | 384 | case (SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF): |
Peter Ujfalusi | 1b68c7d | 2015-06-04 16:04:24 +0300 | [diff] [blame] | 385 | serial_format |= TAS2552_DATAFORMAT_LEFT_J; |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 386 | break; |
| 387 | default: |
| 388 | dev_vdbg(codec->dev, "DAI Format is not found\n"); |
| 389 | return -EINVAL; |
| 390 | } |
Peter Ujfalusi | 3f747a8 | 2015-06-04 16:04:25 +0300 | [diff] [blame] | 391 | tas2552->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK; |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 392 | |
Peter Ujfalusi | 4c33137 | 2015-06-04 16:04:23 +0300 | [diff] [blame] | 393 | snd_soc_update_bits(codec, TAS2552_SER_CTRL_1, TAS2552_DAI_FMT_MASK, |
| 394 | serial_format); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 395 | return 0; |
| 396 | } |
| 397 | |
| 398 | static int tas2552_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id, |
| 399 | unsigned int freq, int dir) |
| 400 | { |
| 401 | struct snd_soc_codec *codec = dai->codec; |
| 402 | struct tas2552_data *tas2552 = dev_get_drvdata(codec->dev); |
Peter Ujfalusi | 9d87a88 | 2015-06-04 16:04:22 +0300 | [diff] [blame] | 403 | u8 reg, mask, val; |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 404 | |
Peter Ujfalusi | 9d87a88 | 2015-06-04 16:04:22 +0300 | [diff] [blame] | 405 | switch (clk_id) { |
| 406 | case TAS2552_PLL_CLKIN_MCLK: |
Peter Ujfalusi | 9d87a88 | 2015-06-04 16:04:22 +0300 | [diff] [blame] | 407 | case TAS2552_PLL_CLKIN_IVCLKIN: |
Peter Ujfalusi | 1014f7e | 2015-06-08 15:19:48 +0300 | [diff] [blame] | 408 | if (freq < 512000 || freq > 24576000) { |
| 409 | /* out of range PLL_CLKIN, fall back to use BCLK */ |
| 410 | dev_warn(codec->dev, "Out of range PLL_CLKIN: %u\n", |
| 411 | freq); |
| 412 | clk_id = TAS2552_PLL_CLKIN_BCLK; |
| 413 | freq = 0; |
| 414 | } |
| 415 | /* fall through */ |
| 416 | case TAS2552_PLL_CLKIN_BCLK: |
Peter Ujfalusi | 9d87a88 | 2015-06-04 16:04:22 +0300 | [diff] [blame] | 417 | case TAS2552_PLL_CLKIN_1_8_FIXED: |
| 418 | mask = TAS2552_PLL_SRC_MASK; |
| 419 | val = (clk_id << 3) & mask; /* bit 4:5 in the register */ |
| 420 | reg = TAS2552_CFG_1; |
Peter Ujfalusi | 1014f7e | 2015-06-08 15:19:48 +0300 | [diff] [blame] | 421 | tas2552->pll_clk_id = clk_id; |
Peter Ujfalusi | 9d87a88 | 2015-06-04 16:04:22 +0300 | [diff] [blame] | 422 | tas2552->pll_clkin = freq; |
| 423 | break; |
| 424 | case TAS2552_PDM_CLK_PLL: |
| 425 | case TAS2552_PDM_CLK_IVCLKIN: |
| 426 | case TAS2552_PDM_CLK_BCLK: |
| 427 | case TAS2552_PDM_CLK_MCLK: |
| 428 | mask = TAS2552_PDM_CLK_SEL_MASK; |
| 429 | val = (clk_id >> 1) & mask; /* bit 0:1 in the register */ |
| 430 | reg = TAS2552_PDM_CFG; |
Peter Ujfalusi | 1014f7e | 2015-06-08 15:19:48 +0300 | [diff] [blame] | 431 | tas2552->pdm_clk_id = clk_id; |
Peter Ujfalusi | 9d87a88 | 2015-06-04 16:04:22 +0300 | [diff] [blame] | 432 | tas2552->pdm_clk = freq; |
| 433 | break; |
| 434 | default: |
| 435 | dev_err(codec->dev, "Invalid clk id: %d\n", clk_id); |
| 436 | return -EINVAL; |
| 437 | } |
| 438 | |
| 439 | snd_soc_update_bits(codec, reg, mask, val); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 440 | |
| 441 | return 0; |
| 442 | } |
| 443 | |
Peter Ujfalusi | 3f747a8 | 2015-06-04 16:04:25 +0300 | [diff] [blame] | 444 | static int tas2552_set_dai_tdm_slot(struct snd_soc_dai *dai, |
| 445 | unsigned int tx_mask, unsigned int rx_mask, |
| 446 | int slots, int slot_width) |
| 447 | { |
| 448 | struct snd_soc_codec *codec = dai->codec; |
| 449 | struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec); |
| 450 | unsigned int lsb; |
| 451 | |
| 452 | if (unlikely(!tx_mask)) { |
| 453 | dev_err(codec->dev, "tx masks need to be non 0\n"); |
| 454 | return -EINVAL; |
| 455 | } |
| 456 | |
| 457 | /* TDM based on DSP mode requires slots to be adjacent */ |
| 458 | lsb = __ffs(tx_mask); |
| 459 | if ((lsb + 1) != __fls(tx_mask)) { |
| 460 | dev_err(codec->dev, "Invalid mask, slots must be adjacent\n"); |
| 461 | return -EINVAL; |
| 462 | } |
| 463 | |
| 464 | tas2552->tdm_delay = lsb * slot_width; |
| 465 | |
| 466 | /* DOUT in high-impedance on inactive bit clocks */ |
| 467 | snd_soc_update_bits(codec, TAS2552_DOUT, |
| 468 | TAS2552_SDOUT_TRISTATE, TAS2552_SDOUT_TRISTATE); |
| 469 | |
| 470 | return 0; |
| 471 | } |
| 472 | |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 473 | static int tas2552_mute(struct snd_soc_dai *dai, int mute) |
| 474 | { |
Peter Ujfalusi | e3606aa | 2015-06-04 16:04:18 +0300 | [diff] [blame] | 475 | u8 cfg1_reg = 0; |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 476 | struct snd_soc_codec *codec = dai->codec; |
| 477 | |
| 478 | if (mute) |
Peter Ujfalusi | e3606aa | 2015-06-04 16:04:18 +0300 | [diff] [blame] | 479 | cfg1_reg |= TAS2552_MUTE; |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 480 | |
Peter Ujfalusi | 7de544f | 2015-06-04 16:04:17 +0300 | [diff] [blame] | 481 | snd_soc_update_bits(codec, TAS2552_CFG_1, TAS2552_MUTE, cfg1_reg); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 482 | |
| 483 | return 0; |
| 484 | } |
| 485 | |
Rafael J. Wysocki | 641d334 | 2014-12-13 00:42:18 +0100 | [diff] [blame] | 486 | #ifdef CONFIG_PM |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 487 | static int tas2552_runtime_suspend(struct device *dev) |
| 488 | { |
| 489 | struct tas2552_data *tas2552 = dev_get_drvdata(dev); |
| 490 | |
Peter Ujfalusi | dd6e305 | 2015-06-04 16:04:19 +0300 | [diff] [blame] | 491 | tas2552_sw_shutdown(tas2552, 1); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 492 | |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 493 | regcache_cache_only(tas2552->regmap, true); |
| 494 | regcache_mark_dirty(tas2552->regmap); |
| 495 | |
Axel Lin | 82cf77a | 2015-07-25 15:32:16 +0800 | [diff] [blame] | 496 | gpiod_set_value(tas2552->enable_gpio, 0); |
Dan Murphy | e295a4a | 2014-07-18 12:31:07 -0500 | [diff] [blame] | 497 | |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 498 | return 0; |
| 499 | } |
| 500 | |
| 501 | static int tas2552_runtime_resume(struct device *dev) |
| 502 | { |
| 503 | struct tas2552_data *tas2552 = dev_get_drvdata(dev); |
| 504 | |
Axel Lin | 82cf77a | 2015-07-25 15:32:16 +0800 | [diff] [blame] | 505 | gpiod_set_value(tas2552->enable_gpio, 1); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 506 | |
Peter Ujfalusi | dd6e305 | 2015-06-04 16:04:19 +0300 | [diff] [blame] | 507 | tas2552_sw_shutdown(tas2552, 0); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 508 | |
| 509 | regcache_cache_only(tas2552->regmap, false); |
| 510 | regcache_sync(tas2552->regmap); |
| 511 | |
| 512 | return 0; |
| 513 | } |
| 514 | #endif |
| 515 | |
| 516 | static const struct dev_pm_ops tas2552_pm = { |
| 517 | SET_RUNTIME_PM_OPS(tas2552_runtime_suspend, tas2552_runtime_resume, |
| 518 | NULL) |
| 519 | }; |
| 520 | |
Axel Lin | 6479304 | 2015-07-15 15:38:14 +0800 | [diff] [blame] | 521 | static const struct snd_soc_dai_ops tas2552_speaker_dai_ops = { |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 522 | .hw_params = tas2552_hw_params, |
Peter Ujfalusi | 3f747a8 | 2015-06-04 16:04:25 +0300 | [diff] [blame] | 523 | .prepare = tas2552_prepare, |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 524 | .set_sysclk = tas2552_set_dai_sysclk, |
| 525 | .set_fmt = tas2552_set_dai_fmt, |
Peter Ujfalusi | 3f747a8 | 2015-06-04 16:04:25 +0300 | [diff] [blame] | 526 | .set_tdm_slot = tas2552_set_dai_tdm_slot, |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 527 | .digital_mute = tas2552_mute, |
| 528 | }; |
| 529 | |
| 530 | /* Formats supported by TAS2552 driver. */ |
| 531 | #define TAS2552_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ |
| 532 | SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) |
| 533 | |
| 534 | /* TAS2552 dai structure. */ |
| 535 | static struct snd_soc_dai_driver tas2552_dai[] = { |
| 536 | { |
| 537 | .name = "tas2552-amplifier", |
| 538 | .playback = { |
Dan Murphy | a7a8e99 | 2014-08-01 10:57:04 -0500 | [diff] [blame] | 539 | .stream_name = "Playback", |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 540 | .channels_min = 2, |
| 541 | .channels_max = 2, |
| 542 | .rates = SNDRV_PCM_RATE_8000_192000, |
| 543 | .formats = TAS2552_FORMATS, |
| 544 | }, |
| 545 | .ops = &tas2552_speaker_dai_ops, |
| 546 | }, |
| 547 | }; |
| 548 | |
| 549 | /* |
| 550 | * DAC digital volumes. From -7 to 24 dB in 1 dB steps |
| 551 | */ |
Andreas Dannenberg | e260046 | 2015-10-05 15:00:14 -0500 | [diff] [blame] | 552 | static DECLARE_TLV_DB_SCALE(dac_tlv, -700, 100, 0); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 553 | |
Peter Ujfalusi | 2962cb5 | 2015-06-08 15:19:49 +0300 | [diff] [blame] | 554 | static const char * const tas2552_din_source_select[] = { |
| 555 | "Muted", |
| 556 | "Left", |
| 557 | "Right", |
| 558 | "Left + Right average", |
| 559 | }; |
| 560 | static SOC_ENUM_SINGLE_DECL(tas2552_din_source_enum, |
| 561 | TAS2552_CFG_3, 3, |
| 562 | tas2552_din_source_select); |
| 563 | |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 564 | static const struct snd_kcontrol_new tas2552_snd_controls[] = { |
| 565 | SOC_SINGLE_TLV("Speaker Driver Playback Volume", |
Peter Ujfalusi | dd6ae3b | 2015-06-04 16:04:27 +0300 | [diff] [blame] | 566 | TAS2552_PGA_GAIN, 0, 0x1f, 0, dac_tlv), |
Peter Ujfalusi | 2962cb5 | 2015-06-08 15:19:49 +0300 | [diff] [blame] | 567 | SOC_ENUM("DIN source", tas2552_din_source_enum), |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 568 | }; |
| 569 | |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 570 | static int tas2552_codec_probe(struct snd_soc_codec *codec) |
| 571 | { |
| 572 | struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec); |
| 573 | int ret; |
| 574 | |
| 575 | tas2552->codec = codec; |
| 576 | |
| 577 | ret = regulator_bulk_enable(ARRAY_SIZE(tas2552->supplies), |
| 578 | tas2552->supplies); |
| 579 | |
| 580 | if (ret != 0) { |
| 581 | dev_err(codec->dev, "Failed to enable supplies: %d\n", |
| 582 | ret); |
| 583 | return ret; |
| 584 | } |
| 585 | |
Axel Lin | 82cf77a | 2015-07-25 15:32:16 +0800 | [diff] [blame] | 586 | gpiod_set_value(tas2552->enable_gpio, 1); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 587 | |
| 588 | ret = pm_runtime_get_sync(codec->dev); |
| 589 | if (ret < 0) { |
| 590 | dev_err(codec->dev, "Enabling device failed: %d\n", |
| 591 | ret); |
| 592 | goto probe_fail; |
| 593 | } |
| 594 | |
Peter Ujfalusi | 7d78502 | 2015-06-04 16:04:28 +0300 | [diff] [blame] | 595 | snd_soc_update_bits(codec, TAS2552_CFG_1, TAS2552_MUTE, TAS2552_MUTE); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 596 | snd_soc_write(codec, TAS2552_CFG_3, TAS2552_I2S_OUT_SEL | |
Peter Ujfalusi | a571cb1 | 2015-06-04 16:04:30 +0300 | [diff] [blame] | 597 | TAS2552_DIN_SRC_SEL_AVG_L_R); |
Peter Ujfalusi | b2822f1 | 2015-06-08 15:19:50 +0300 | [diff] [blame] | 598 | snd_soc_write(codec, TAS2552_OUTPUT_DATA, |
| 599 | TAS2552_PDM_DATA_SEL_V_I | |
| 600 | TAS2552_R_DATA_OUT(TAS2552_DATA_OUT_V_DATA)); |
Peter Ujfalusi | 2a9dd1d | 2015-06-08 15:19:51 +0300 | [diff] [blame] | 601 | snd_soc_write(codec, TAS2552_BOOST_APT_CTRL, TAS2552_APT_DELAY_200 | |
| 602 | TAS2552_APT_THRESH_20_17); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 603 | |
Peter Ujfalusi | 4afdd89 | 2015-06-08 15:19:52 +0300 | [diff] [blame] | 604 | snd_soc_write(codec, TAS2552_CFG_2, TAS2552_BOOST_EN | TAS2552_APT_EN | |
| 605 | TAS2552_LIM_EN); |
Dan Murphy | a7a8e99 | 2014-08-01 10:57:04 -0500 | [diff] [blame] | 606 | |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 607 | return 0; |
| 608 | |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 609 | probe_fail: |
Axel Lin | 82cf77a | 2015-07-25 15:32:16 +0800 | [diff] [blame] | 610 | gpiod_set_value(tas2552->enable_gpio, 0); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 611 | |
| 612 | regulator_bulk_disable(ARRAY_SIZE(tas2552->supplies), |
| 613 | tas2552->supplies); |
| 614 | return -EIO; |
| 615 | } |
| 616 | |
| 617 | static int tas2552_codec_remove(struct snd_soc_codec *codec) |
| 618 | { |
| 619 | struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec); |
| 620 | |
Dan Murphy | e295a4a | 2014-07-18 12:31:07 -0500 | [diff] [blame] | 621 | pm_runtime_put(codec->dev); |
| 622 | |
Axel Lin | 82cf77a | 2015-07-25 15:32:16 +0800 | [diff] [blame] | 623 | gpiod_set_value(tas2552->enable_gpio, 0); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 624 | |
| 625 | return 0; |
| 626 | }; |
| 627 | |
| 628 | #ifdef CONFIG_PM |
| 629 | static int tas2552_suspend(struct snd_soc_codec *codec) |
| 630 | { |
| 631 | struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec); |
| 632 | int ret; |
| 633 | |
| 634 | ret = regulator_bulk_disable(ARRAY_SIZE(tas2552->supplies), |
| 635 | tas2552->supplies); |
| 636 | |
| 637 | if (ret != 0) |
| 638 | dev_err(codec->dev, "Failed to disable supplies: %d\n", |
| 639 | ret); |
| 640 | return 0; |
| 641 | } |
| 642 | |
| 643 | static int tas2552_resume(struct snd_soc_codec *codec) |
| 644 | { |
| 645 | struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec); |
| 646 | int ret; |
| 647 | |
| 648 | ret = regulator_bulk_enable(ARRAY_SIZE(tas2552->supplies), |
| 649 | tas2552->supplies); |
| 650 | |
| 651 | if (ret != 0) { |
| 652 | dev_err(codec->dev, "Failed to enable supplies: %d\n", |
| 653 | ret); |
| 654 | } |
| 655 | |
| 656 | return 0; |
| 657 | } |
| 658 | #else |
| 659 | #define tas2552_suspend NULL |
| 660 | #define tas2552_resume NULL |
| 661 | #endif |
| 662 | |
| 663 | static struct snd_soc_codec_driver soc_codec_dev_tas2552 = { |
| 664 | .probe = tas2552_codec_probe, |
| 665 | .remove = tas2552_codec_remove, |
| 666 | .suspend = tas2552_suspend, |
| 667 | .resume = tas2552_resume, |
Peter Ujfalusi | 7d78502 | 2015-06-04 16:04:28 +0300 | [diff] [blame] | 668 | .ignore_pmdown_time = true, |
| 669 | |
Kuninori Morimoto | e553865 | 2016-08-08 08:55:58 +0000 | [diff] [blame] | 670 | .component_driver = { |
| 671 | .controls = tas2552_snd_controls, |
| 672 | .num_controls = ARRAY_SIZE(tas2552_snd_controls), |
| 673 | .dapm_widgets = tas2552_dapm_widgets, |
| 674 | .num_dapm_widgets = ARRAY_SIZE(tas2552_dapm_widgets), |
| 675 | .dapm_routes = tas2552_audio_map, |
| 676 | .num_dapm_routes = ARRAY_SIZE(tas2552_audio_map), |
| 677 | }, |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 678 | }; |
| 679 | |
| 680 | static const struct regmap_config tas2552_regmap_config = { |
| 681 | .reg_bits = 8, |
| 682 | .val_bits = 8, |
| 683 | |
| 684 | .max_register = TAS2552_MAX_REG, |
| 685 | .reg_defaults = tas2552_reg_defs, |
| 686 | .num_reg_defaults = ARRAY_SIZE(tas2552_reg_defs), |
| 687 | .cache_type = REGCACHE_RBTREE, |
| 688 | }; |
| 689 | |
| 690 | static int tas2552_probe(struct i2c_client *client, |
| 691 | const struct i2c_device_id *id) |
| 692 | { |
| 693 | struct device *dev; |
| 694 | struct tas2552_data *data; |
| 695 | int ret; |
| 696 | int i; |
| 697 | |
| 698 | dev = &client->dev; |
| 699 | data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); |
| 700 | if (data == NULL) |
| 701 | return -ENOMEM; |
| 702 | |
Axel Lin | 8604bc2 | 2015-06-10 22:46:05 +0800 | [diff] [blame] | 703 | data->enable_gpio = devm_gpiod_get_optional(dev, "enable", |
| 704 | GPIOD_OUT_LOW); |
| 705 | if (IS_ERR(data->enable_gpio)) |
| 706 | return PTR_ERR(data->enable_gpio); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 707 | |
| 708 | data->tas2552_client = client; |
| 709 | data->regmap = devm_regmap_init_i2c(client, &tas2552_regmap_config); |
| 710 | if (IS_ERR(data->regmap)) { |
| 711 | ret = PTR_ERR(data->regmap); |
| 712 | dev_err(&client->dev, "Failed to allocate register map: %d\n", |
| 713 | ret); |
| 714 | return ret; |
| 715 | } |
| 716 | |
| 717 | for (i = 0; i < ARRAY_SIZE(data->supplies); i++) |
| 718 | data->supplies[i].supply = tas2552_supply_names[i]; |
| 719 | |
| 720 | ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(data->supplies), |
| 721 | data->supplies); |
Axel Lin | c62f9d8 | 2014-07-23 16:42:21 +0800 | [diff] [blame] | 722 | if (ret != 0) { |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 723 | dev_err(dev, "Failed to request supplies: %d\n", ret); |
Axel Lin | c62f9d8 | 2014-07-23 16:42:21 +0800 | [diff] [blame] | 724 | return ret; |
| 725 | } |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 726 | |
| 727 | pm_runtime_set_active(&client->dev); |
| 728 | pm_runtime_set_autosuspend_delay(&client->dev, 1000); |
| 729 | pm_runtime_use_autosuspend(&client->dev); |
| 730 | pm_runtime_enable(&client->dev); |
| 731 | pm_runtime_mark_last_busy(&client->dev); |
| 732 | pm_runtime_put_sync_autosuspend(&client->dev); |
| 733 | |
| 734 | dev_set_drvdata(&client->dev, data); |
| 735 | |
| 736 | ret = snd_soc_register_codec(&client->dev, |
| 737 | &soc_codec_dev_tas2552, |
| 738 | tas2552_dai, ARRAY_SIZE(tas2552_dai)); |
| 739 | if (ret < 0) |
| 740 | dev_err(&client->dev, "Failed to register codec: %d\n", ret); |
| 741 | |
Axel Lin | c62f9d8 | 2014-07-23 16:42:21 +0800 | [diff] [blame] | 742 | return ret; |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 743 | } |
| 744 | |
| 745 | static int tas2552_i2c_remove(struct i2c_client *client) |
| 746 | { |
| 747 | snd_soc_unregister_codec(&client->dev); |
Peter Ujfalusi | 4785ed8 | 2015-06-08 15:19:53 +0300 | [diff] [blame] | 748 | pm_runtime_disable(&client->dev); |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 749 | return 0; |
| 750 | } |
| 751 | |
| 752 | static const struct i2c_device_id tas2552_id[] = { |
| 753 | { "tas2552", 0 }, |
| 754 | { } |
| 755 | }; |
| 756 | MODULE_DEVICE_TABLE(i2c, tas2552_id); |
| 757 | |
| 758 | #if IS_ENABLED(CONFIG_OF) |
| 759 | static const struct of_device_id tas2552_of_match[] = { |
| 760 | { .compatible = "ti,tas2552", }, |
| 761 | {}, |
| 762 | }; |
| 763 | MODULE_DEVICE_TABLE(of, tas2552_of_match); |
| 764 | #endif |
| 765 | |
| 766 | static struct i2c_driver tas2552_i2c_driver = { |
| 767 | .driver = { |
| 768 | .name = "tas2552", |
Dan Murphy | 5df7f71 | 2014-07-14 15:10:45 -0500 | [diff] [blame] | 769 | .of_match_table = of_match_ptr(tas2552_of_match), |
| 770 | .pm = &tas2552_pm, |
| 771 | }, |
| 772 | .probe = tas2552_probe, |
| 773 | .remove = tas2552_i2c_remove, |
| 774 | .id_table = tas2552_id, |
| 775 | }; |
| 776 | |
| 777 | module_i2c_driver(tas2552_i2c_driver); |
| 778 | |
| 779 | MODULE_AUTHOR("Dan Muprhy <dmurphy@ti.com>"); |
| 780 | MODULE_DESCRIPTION("TAS2552 Audio amplifier driver"); |
| 781 | MODULE_LICENSE("GPL"); |