1d2912cb1SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 23a66d387SMark Brown /* 33a66d387SMark Brown * wm2000.c -- WM2000 ALSA Soc Audio driver 43a66d387SMark Brown * 5656baaebSMark Brown * Copyright 2008-2011 Wolfson Microelectronics PLC. 63a66d387SMark Brown * 73a66d387SMark Brown * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> 83a66d387SMark Brown * 93a66d387SMark Brown * The download image for the WM2000 will be requested as 103a66d387SMark Brown * 'wm2000_anc.bin' by default (overridable via platform data) at 113a66d387SMark Brown * runtime and is expected to be in flat binary format. This is 123a66d387SMark Brown * generated by Wolfson configuration tools and includes 13cdbd9b0cSMarkus Elfring * system-specific calibration information. If supplied as a 143a66d387SMark Brown * sequence of ASCII-encoded hexidecimal bytes this can be converted 153a66d387SMark Brown * into a flat binary with a command such as this on the command line: 163a66d387SMark Brown * 173a66d387SMark Brown * perl -e 'while (<>) { s/[\r\n]+// ; printf("%c", hex($_)); }' 183a66d387SMark Brown * < file > wm2000_anc.bin 193a66d387SMark Brown */ 203a66d387SMark Brown 213a66d387SMark Brown #include <linux/module.h> 223a66d387SMark Brown #include <linux/moduleparam.h> 233a66d387SMark Brown #include <linux/kernel.h> 243a66d387SMark Brown #include <linux/init.h> 253a66d387SMark Brown #include <linux/firmware.h> 26514cfd6dSMark Brown #include <linux/clk.h> 273a66d387SMark Brown #include <linux/delay.h> 283a66d387SMark Brown #include <linux/pm.h> 293a66d387SMark Brown #include <linux/i2c.h> 308aa1fe81SMark Brown #include <linux/regmap.h> 313a66d387SMark Brown #include <linux/debugfs.h> 32a89be93cSMark Brown #include <linux/regulator/consumer.h> 335a0e3ad6STejun Heo #include <linux/slab.h> 343a66d387SMark Brown #include <sound/core.h> 353a66d387SMark Brown #include <sound/pcm.h> 363a66d387SMark Brown #include <sound/pcm_params.h> 373a66d387SMark Brown #include <sound/soc.h> 383a66d387SMark Brown #include <sound/initval.h> 393a66d387SMark Brown #include <sound/tlv.h> 403a66d387SMark Brown 413a66d387SMark Brown #include <sound/wm2000.h> 423a66d387SMark Brown 433a66d387SMark Brown #include "wm2000.h" 443a66d387SMark Brown 45a89be93cSMark Brown #define WM2000_NUM_SUPPLIES 3 46a89be93cSMark Brown 47a89be93cSMark Brown static const char *wm2000_supplies[WM2000_NUM_SUPPLIES] = { 48a89be93cSMark Brown "SPKVDD", 49a89be93cSMark Brown "DBVDD", 50a89be93cSMark Brown "DCVDD", 51a89be93cSMark Brown }; 52a89be93cSMark Brown 533a66d387SMark Brown enum wm2000_anc_mode { 543a66d387SMark Brown ANC_ACTIVE = 0, 553a66d387SMark Brown ANC_BYPASS = 1, 563a66d387SMark Brown ANC_STANDBY = 2, 573a66d387SMark Brown ANC_OFF = 3, 583a66d387SMark Brown }; 593a66d387SMark Brown 603a66d387SMark Brown struct wm2000_priv { 613a66d387SMark Brown struct i2c_client *i2c; 628aa1fe81SMark Brown struct regmap *regmap; 63514cfd6dSMark Brown struct clk *mclk; 643a66d387SMark Brown 65a89be93cSMark Brown struct regulator_bulk_data supplies[WM2000_NUM_SUPPLIES]; 66a89be93cSMark Brown 673a66d387SMark Brown enum wm2000_anc_mode anc_mode; 683a66d387SMark Brown 693a66d387SMark Brown unsigned int anc_active:1; 703a66d387SMark Brown unsigned int anc_eng_ena:1; 713a66d387SMark Brown unsigned int spk_ena:1; 723a66d387SMark Brown 733a66d387SMark Brown unsigned int speech_clarity:1; 743a66d387SMark Brown 753a66d387SMark Brown int anc_download_size; 763a66d387SMark Brown char *anc_download; 778e9bb423SMark Brown 788e9bb423SMark Brown struct mutex lock; 793a66d387SMark Brown }; 803a66d387SMark Brown 813a66d387SMark Brown static int wm2000_write(struct i2c_client *i2c, unsigned int reg, 823a66d387SMark Brown unsigned int value) 833a66d387SMark Brown { 848aa1fe81SMark Brown struct wm2000_priv *wm2000 = i2c_get_clientdata(i2c); 858aa1fe81SMark Brown return regmap_write(wm2000->regmap, reg, value); 863a66d387SMark Brown } 873a66d387SMark Brown 883a66d387SMark Brown static void wm2000_reset(struct wm2000_priv *wm2000) 893a66d387SMark Brown { 903a66d387SMark Brown struct i2c_client *i2c = wm2000->i2c; 913a66d387SMark Brown 923a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_ANC_ENG_CLR); 933a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_RAM_CLR); 943a66d387SMark Brown wm2000_write(i2c, WM2000_REG_ID1, 0); 953a66d387SMark Brown 963a66d387SMark Brown wm2000->anc_mode = ANC_OFF; 973a66d387SMark Brown } 983a66d387SMark Brown 993a66d387SMark Brown static int wm2000_poll_bit(struct i2c_client *i2c, 1003ff1ec27SMark Brown unsigned int reg, u8 mask) 1013a66d387SMark Brown { 102c5d09485SLucas Tanure struct wm2000_priv *wm2000 = i2c_get_clientdata(i2c); 1033ff1ec27SMark Brown int timeout = 4000; 104c5d09485SLucas Tanure unsigned int val; 1053a66d387SMark Brown 106c5d09485SLucas Tanure regmap_read(wm2000->regmap, reg, &val); 1073a66d387SMark Brown 1083a66d387SMark Brown while (!(val & mask) && --timeout) { 1093a66d387SMark Brown msleep(1); 110c5d09485SLucas Tanure regmap_read(wm2000->regmap, reg, &val); 1113a66d387SMark Brown } 1123a66d387SMark Brown 1133a66d387SMark Brown if (timeout == 0) 1143a66d387SMark Brown return 0; 1153a66d387SMark Brown else 1163a66d387SMark Brown return 1; 1173a66d387SMark Brown } 1183a66d387SMark Brown 1193a66d387SMark Brown static int wm2000_power_up(struct i2c_client *i2c, int analogue) 1203a66d387SMark Brown { 1213a66d387SMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); 122d61100bbSMark Brown unsigned long rate; 123c5d09485SLucas Tanure unsigned int val; 1243ff1ec27SMark Brown int ret; 1253a66d387SMark Brown 126bf90e895STakashi Iwai if (WARN_ON(wm2000->anc_mode != ANC_OFF)) 127bf90e895STakashi Iwai return -EINVAL; 1283a66d387SMark Brown 1293a66d387SMark Brown dev_dbg(&i2c->dev, "Beginning power up\n"); 1303a66d387SMark Brown 131a89be93cSMark Brown ret = regulator_bulk_enable(WM2000_NUM_SUPPLIES, wm2000->supplies); 132a89be93cSMark Brown if (ret != 0) { 133a89be93cSMark Brown dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret); 134a89be93cSMark Brown return ret; 135a89be93cSMark Brown } 136a89be93cSMark Brown 137d61100bbSMark Brown rate = clk_get_rate(wm2000->mclk); 138d61100bbSMark Brown if (rate <= 13500000) { 1393a66d387SMark Brown dev_dbg(&i2c->dev, "Disabling MCLK divider\n"); 1403a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, 1413a66d387SMark Brown WM2000_MCLK_DIV2_ENA_CLR); 1423a66d387SMark Brown } else { 1433a66d387SMark Brown dev_dbg(&i2c->dev, "Enabling MCLK divider\n"); 1443a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, 1453a66d387SMark Brown WM2000_MCLK_DIV2_ENA_SET); 1463a66d387SMark Brown } 1473a66d387SMark Brown 1483a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_ANC_ENG_CLR); 1493a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_ANC_ENG_SET); 1503a66d387SMark Brown 1513a66d387SMark Brown /* Wait for ANC engine to become ready */ 1523a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_ANC_STAT, 1533ff1ec27SMark Brown WM2000_ANC_ENG_IDLE)) { 1543a66d387SMark Brown dev_err(&i2c->dev, "ANC engine failed to reset\n"); 155a89be93cSMark Brown regulator_bulk_disable(WM2000_NUM_SUPPLIES, wm2000->supplies); 1563a66d387SMark Brown return -ETIMEDOUT; 1573a66d387SMark Brown } 1583a66d387SMark Brown 1593a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, 1603ff1ec27SMark Brown WM2000_STATUS_BOOT_COMPLETE)) { 1613a66d387SMark Brown dev_err(&i2c->dev, "ANC engine failed to initialise\n"); 162a89be93cSMark Brown regulator_bulk_disable(WM2000_NUM_SUPPLIES, wm2000->supplies); 1633a66d387SMark Brown return -ETIMEDOUT; 1643a66d387SMark Brown } 1653a66d387SMark Brown 1663a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_RAM_SET); 1673a66d387SMark Brown 1683a66d387SMark Brown /* Open code download of the data since it is the only bulk 1693a66d387SMark Brown * write we do. */ 1703a66d387SMark Brown dev_dbg(&i2c->dev, "Downloading %d bytes\n", 1713a66d387SMark Brown wm2000->anc_download_size - 2); 1723a66d387SMark Brown 1733a66d387SMark Brown ret = i2c_master_send(i2c, wm2000->anc_download, 1743a66d387SMark Brown wm2000->anc_download_size); 1753a66d387SMark Brown if (ret < 0) { 1763a66d387SMark Brown dev_err(&i2c->dev, "i2c_transfer() failed: %d\n", ret); 177a89be93cSMark Brown regulator_bulk_disable(WM2000_NUM_SUPPLIES, wm2000->supplies); 1783a66d387SMark Brown return ret; 1793a66d387SMark Brown } 1803a66d387SMark Brown if (ret != wm2000->anc_download_size) { 1813a66d387SMark Brown dev_err(&i2c->dev, "i2c_transfer() failed, %d != %d\n", 1823a66d387SMark Brown ret, wm2000->anc_download_size); 183a89be93cSMark Brown regulator_bulk_disable(WM2000_NUM_SUPPLIES, wm2000->supplies); 1843a66d387SMark Brown return -EIO; 1853a66d387SMark Brown } 1863a66d387SMark Brown 1873a66d387SMark Brown dev_dbg(&i2c->dev, "Download complete\n"); 1883a66d387SMark Brown 1893a66d387SMark Brown if (analogue) { 1903ff1ec27SMark Brown wm2000_write(i2c, WM2000_REG_ANA_VMID_PU_TIME, 248 / 4); 1913a66d387SMark Brown 1923a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 1933a66d387SMark Brown WM2000_MODE_ANA_SEQ_INCLUDE | 1943a66d387SMark Brown WM2000_MODE_MOUSE_ENABLE | 1953a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE); 1963a66d387SMark Brown } else { 1973a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 1983a66d387SMark Brown WM2000_MODE_MOUSE_ENABLE | 1993a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE); 2003a66d387SMark Brown } 2013a66d387SMark Brown 202c5d09485SLucas Tanure ret = regmap_read(wm2000->regmap, WM2000_REG_SPEECH_CLARITY, &val); 203c5d09485SLucas Tanure if (ret != 0) { 204c5d09485SLucas Tanure dev_err(&i2c->dev, "Unable to read Speech Clarity: %d\n", ret); 205c5d09485SLucas Tanure regulator_bulk_disable(WM2000_NUM_SUPPLIES, wm2000->supplies); 206c5d09485SLucas Tanure return ret; 207c5d09485SLucas Tanure } 2083a66d387SMark Brown if (wm2000->speech_clarity) 209c5d09485SLucas Tanure val |= WM2000_SPEECH_CLARITY; 210267f8fa2SMark Brown else 211c5d09485SLucas Tanure val &= ~WM2000_SPEECH_CLARITY; 212c5d09485SLucas Tanure wm2000_write(i2c, WM2000_REG_SPEECH_CLARITY, val); 2133a66d387SMark Brown 2143a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_START0, 0x33); 2153a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_START1, 0x02); 2163a66d387SMark Brown 2173a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_ANC_INT_N_CLR); 2183a66d387SMark Brown 2193a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, 2203ff1ec27SMark Brown WM2000_STATUS_MOUSE_ACTIVE)) { 2213ff1ec27SMark Brown dev_err(&i2c->dev, "Timed out waiting for device\n"); 222a89be93cSMark Brown regulator_bulk_disable(WM2000_NUM_SUPPLIES, wm2000->supplies); 2233a66d387SMark Brown return -ETIMEDOUT; 2243a66d387SMark Brown } 2253a66d387SMark Brown 2263a66d387SMark Brown dev_dbg(&i2c->dev, "ANC active\n"); 2273a66d387SMark Brown if (analogue) 2283a66d387SMark Brown dev_dbg(&i2c->dev, "Analogue active\n"); 2293a66d387SMark Brown wm2000->anc_mode = ANC_ACTIVE; 2303a66d387SMark Brown 2313a66d387SMark Brown return 0; 2323a66d387SMark Brown } 2333a66d387SMark Brown 2343a66d387SMark Brown static int wm2000_power_down(struct i2c_client *i2c, int analogue) 2353a66d387SMark Brown { 2363a66d387SMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); 2373a66d387SMark Brown 2383a66d387SMark Brown if (analogue) { 2393ff1ec27SMark Brown wm2000_write(i2c, WM2000_REG_ANA_VMID_PD_TIME, 248 / 4); 2403a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 2413a66d387SMark Brown WM2000_MODE_ANA_SEQ_INCLUDE | 2423a66d387SMark Brown WM2000_MODE_POWER_DOWN); 2433a66d387SMark Brown } else { 2443a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 2453a66d387SMark Brown WM2000_MODE_POWER_DOWN); 2463a66d387SMark Brown } 2473a66d387SMark Brown 2483a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, 2493ff1ec27SMark Brown WM2000_STATUS_POWER_DOWN_COMPLETE)) { 2503a66d387SMark Brown dev_err(&i2c->dev, "Timeout waiting for ANC power down\n"); 2513a66d387SMark Brown return -ETIMEDOUT; 2523a66d387SMark Brown } 2533a66d387SMark Brown 2543a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_ANC_STAT, 2553ff1ec27SMark Brown WM2000_ANC_ENG_IDLE)) { 2563a66d387SMark Brown dev_err(&i2c->dev, "Timeout waiting for ANC engine idle\n"); 2573a66d387SMark Brown return -ETIMEDOUT; 2583a66d387SMark Brown } 2593a66d387SMark Brown 260a89be93cSMark Brown regulator_bulk_disable(WM2000_NUM_SUPPLIES, wm2000->supplies); 261a89be93cSMark Brown 2623a66d387SMark Brown dev_dbg(&i2c->dev, "powered off\n"); 2633a66d387SMark Brown wm2000->anc_mode = ANC_OFF; 2643a66d387SMark Brown 2653a66d387SMark Brown return 0; 2663a66d387SMark Brown } 2673a66d387SMark Brown 2683a66d387SMark Brown static int wm2000_enter_bypass(struct i2c_client *i2c, int analogue) 2693a66d387SMark Brown { 2703a66d387SMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); 2713a66d387SMark Brown 272bf90e895STakashi Iwai if (WARN_ON(wm2000->anc_mode != ANC_ACTIVE)) 273bf90e895STakashi Iwai return -EINVAL; 2743a66d387SMark Brown 2753a66d387SMark Brown if (analogue) { 2763a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 2773a66d387SMark Brown WM2000_MODE_ANA_SEQ_INCLUDE | 2783a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE | 2793a66d387SMark Brown WM2000_MODE_BYPASS_ENTRY); 2803a66d387SMark Brown } else { 2813a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 2823a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE | 2833a66d387SMark Brown WM2000_MODE_BYPASS_ENTRY); 2843a66d387SMark Brown } 2853a66d387SMark Brown 2863a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, 2873ff1ec27SMark Brown WM2000_STATUS_ANC_DISABLED)) { 2883a66d387SMark Brown dev_err(&i2c->dev, "Timeout waiting for ANC disable\n"); 2893a66d387SMark Brown return -ETIMEDOUT; 2903a66d387SMark Brown } 2913a66d387SMark Brown 2923a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_ANC_STAT, 2933ff1ec27SMark Brown WM2000_ANC_ENG_IDLE)) { 2943a66d387SMark Brown dev_err(&i2c->dev, "Timeout waiting for ANC engine idle\n"); 2953a66d387SMark Brown return -ETIMEDOUT; 2963a66d387SMark Brown } 2973a66d387SMark Brown 2983a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL1, WM2000_SYS_STBY); 2993a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_RAM_CLR); 3003a66d387SMark Brown 3013a66d387SMark Brown wm2000->anc_mode = ANC_BYPASS; 3023a66d387SMark Brown dev_dbg(&i2c->dev, "bypass enabled\n"); 3033a66d387SMark Brown 3043a66d387SMark Brown return 0; 3053a66d387SMark Brown } 3063a66d387SMark Brown 3073a66d387SMark Brown static int wm2000_exit_bypass(struct i2c_client *i2c, int analogue) 3083a66d387SMark Brown { 3093a66d387SMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); 3103a66d387SMark Brown 311bf90e895STakashi Iwai if (WARN_ON(wm2000->anc_mode != ANC_BYPASS)) 312bf90e895STakashi Iwai return -EINVAL; 3133a66d387SMark Brown 3143a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL1, 0); 3153a66d387SMark Brown 3163a66d387SMark Brown if (analogue) { 3173a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 3183a66d387SMark Brown WM2000_MODE_ANA_SEQ_INCLUDE | 3193a66d387SMark Brown WM2000_MODE_MOUSE_ENABLE | 3203a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE); 3213a66d387SMark Brown } else { 3223a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 3233a66d387SMark Brown WM2000_MODE_MOUSE_ENABLE | 3243a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE); 3253a66d387SMark Brown } 3263a66d387SMark Brown 3273a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_RAM_SET); 3283a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_ANC_INT_N_CLR); 3293a66d387SMark Brown 3303a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, 3313ff1ec27SMark Brown WM2000_STATUS_MOUSE_ACTIVE)) { 3323a66d387SMark Brown dev_err(&i2c->dev, "Timed out waiting for MOUSE\n"); 3333a66d387SMark Brown return -ETIMEDOUT; 3343a66d387SMark Brown } 3353a66d387SMark Brown 3363a66d387SMark Brown wm2000->anc_mode = ANC_ACTIVE; 3373a66d387SMark Brown dev_dbg(&i2c->dev, "MOUSE active\n"); 3383a66d387SMark Brown 3393a66d387SMark Brown return 0; 3403a66d387SMark Brown } 3413a66d387SMark Brown 3423a66d387SMark Brown static int wm2000_enter_standby(struct i2c_client *i2c, int analogue) 3433a66d387SMark Brown { 3443a66d387SMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); 3453a66d387SMark Brown 346bf90e895STakashi Iwai if (WARN_ON(wm2000->anc_mode != ANC_ACTIVE)) 347bf90e895STakashi Iwai return -EINVAL; 3483a66d387SMark Brown 3493a66d387SMark Brown if (analogue) { 3503ff1ec27SMark Brown wm2000_write(i2c, WM2000_REG_ANA_VMID_PD_TIME, 248 / 4); 3513a66d387SMark Brown 3523a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 3533a66d387SMark Brown WM2000_MODE_ANA_SEQ_INCLUDE | 3543a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE | 3553a66d387SMark Brown WM2000_MODE_STANDBY_ENTRY); 3563a66d387SMark Brown } else { 3573a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 3583a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE | 3593a66d387SMark Brown WM2000_MODE_STANDBY_ENTRY); 3603a66d387SMark Brown } 3613a66d387SMark Brown 3623a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, 3633ff1ec27SMark Brown WM2000_STATUS_ANC_DISABLED)) { 3643a66d387SMark Brown dev_err(&i2c->dev, 3653a66d387SMark Brown "Timed out waiting for ANC disable after 1ms\n"); 3663a66d387SMark Brown return -ETIMEDOUT; 3673a66d387SMark Brown } 3683a66d387SMark Brown 3693ff1ec27SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_ANC_STAT, WM2000_ANC_ENG_IDLE)) { 3703a66d387SMark Brown dev_err(&i2c->dev, 3713ff1ec27SMark Brown "Timed out waiting for standby\n"); 3723a66d387SMark Brown return -ETIMEDOUT; 3733a66d387SMark Brown } 3743a66d387SMark Brown 3753a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL1, WM2000_SYS_STBY); 3763a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_RAM_CLR); 3773a66d387SMark Brown 3783a66d387SMark Brown wm2000->anc_mode = ANC_STANDBY; 3793a66d387SMark Brown dev_dbg(&i2c->dev, "standby\n"); 3803a66d387SMark Brown if (analogue) 3813a66d387SMark Brown dev_dbg(&i2c->dev, "Analogue disabled\n"); 3823a66d387SMark Brown 3833a66d387SMark Brown return 0; 3843a66d387SMark Brown } 3853a66d387SMark Brown 3863a66d387SMark Brown static int wm2000_exit_standby(struct i2c_client *i2c, int analogue) 3873a66d387SMark Brown { 3883a66d387SMark Brown struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev); 3893a66d387SMark Brown 390bf90e895STakashi Iwai if (WARN_ON(wm2000->anc_mode != ANC_STANDBY)) 391bf90e895STakashi Iwai return -EINVAL; 3923a66d387SMark Brown 3933a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL1, 0); 3943a66d387SMark Brown 3953a66d387SMark Brown if (analogue) { 3963ff1ec27SMark Brown wm2000_write(i2c, WM2000_REG_ANA_VMID_PU_TIME, 248 / 4); 3973a66d387SMark Brown 3983a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 3993a66d387SMark Brown WM2000_MODE_ANA_SEQ_INCLUDE | 4003a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE | 4013a66d387SMark Brown WM2000_MODE_MOUSE_ENABLE); 4023a66d387SMark Brown } else { 4033a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL, 4043a66d387SMark Brown WM2000_MODE_THERMAL_ENABLE | 4053a66d387SMark Brown WM2000_MODE_MOUSE_ENABLE); 4063a66d387SMark Brown } 4073a66d387SMark Brown 4083a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_RAM_SET); 4093a66d387SMark Brown wm2000_write(i2c, WM2000_REG_SYS_CTL2, WM2000_ANC_INT_N_CLR); 4103a66d387SMark Brown 4113a66d387SMark Brown if (!wm2000_poll_bit(i2c, WM2000_REG_SYS_STATUS, 4123ff1ec27SMark Brown WM2000_STATUS_MOUSE_ACTIVE)) { 4133ff1ec27SMark Brown dev_err(&i2c->dev, "Timed out waiting for MOUSE\n"); 4143a66d387SMark Brown return -ETIMEDOUT; 4153a66d387SMark Brown } 4163a66d387SMark Brown 4173a66d387SMark Brown wm2000->anc_mode = ANC_ACTIVE; 4183a66d387SMark Brown dev_dbg(&i2c->dev, "MOUSE active\n"); 4193a66d387SMark Brown if (analogue) 4203a66d387SMark Brown dev_dbg(&i2c->dev, "Analogue enabled\n"); 4213a66d387SMark Brown 4223a66d387SMark Brown return 0; 4233a66d387SMark Brown } 4243a66d387SMark Brown 4253a66d387SMark Brown typedef int (*wm2000_mode_fn)(struct i2c_client *i2c, int analogue); 4263a66d387SMark Brown 4273a66d387SMark Brown static struct { 4283a66d387SMark Brown enum wm2000_anc_mode source; 4293a66d387SMark Brown enum wm2000_anc_mode dest; 4303a66d387SMark Brown int analogue; 4313a66d387SMark Brown wm2000_mode_fn step[2]; 4323a66d387SMark Brown } anc_transitions[] = { 4333a66d387SMark Brown { 4343a66d387SMark Brown .source = ANC_OFF, 4353a66d387SMark Brown .dest = ANC_ACTIVE, 4363a66d387SMark Brown .analogue = 1, 4373a66d387SMark Brown .step = { 4383a66d387SMark Brown wm2000_power_up, 4393a66d387SMark Brown }, 4403a66d387SMark Brown }, 4413a66d387SMark Brown { 4423a66d387SMark Brown .source = ANC_OFF, 4433a66d387SMark Brown .dest = ANC_STANDBY, 4443a66d387SMark Brown .step = { 4453a66d387SMark Brown wm2000_power_up, 4463a66d387SMark Brown wm2000_enter_standby, 4473a66d387SMark Brown }, 4483a66d387SMark Brown }, 4493a66d387SMark Brown { 4503a66d387SMark Brown .source = ANC_OFF, 4513a66d387SMark Brown .dest = ANC_BYPASS, 4523a66d387SMark Brown .analogue = 1, 4533a66d387SMark Brown .step = { 4543a66d387SMark Brown wm2000_power_up, 4553a66d387SMark Brown wm2000_enter_bypass, 4563a66d387SMark Brown }, 4573a66d387SMark Brown }, 4583a66d387SMark Brown { 4593a66d387SMark Brown .source = ANC_ACTIVE, 4603a66d387SMark Brown .dest = ANC_BYPASS, 4613a66d387SMark Brown .analogue = 1, 4623a66d387SMark Brown .step = { 4633a66d387SMark Brown wm2000_enter_bypass, 4643a66d387SMark Brown }, 4653a66d387SMark Brown }, 4663a66d387SMark Brown { 4673a66d387SMark Brown .source = ANC_ACTIVE, 4683a66d387SMark Brown .dest = ANC_STANDBY, 4693a66d387SMark Brown .analogue = 1, 4703a66d387SMark Brown .step = { 4713a66d387SMark Brown wm2000_enter_standby, 4723a66d387SMark Brown }, 4733a66d387SMark Brown }, 4743a66d387SMark Brown { 4753a66d387SMark Brown .source = ANC_ACTIVE, 4763a66d387SMark Brown .dest = ANC_OFF, 4773a66d387SMark Brown .analogue = 1, 4783a66d387SMark Brown .step = { 4793a66d387SMark Brown wm2000_power_down, 4803a66d387SMark Brown }, 4813a66d387SMark Brown }, 4823a66d387SMark Brown { 4833a66d387SMark Brown .source = ANC_BYPASS, 4843a66d387SMark Brown .dest = ANC_ACTIVE, 4853a66d387SMark Brown .analogue = 1, 4863a66d387SMark Brown .step = { 4873a66d387SMark Brown wm2000_exit_bypass, 4883a66d387SMark Brown }, 4893a66d387SMark Brown }, 4903a66d387SMark Brown { 4913a66d387SMark Brown .source = ANC_BYPASS, 4923a66d387SMark Brown .dest = ANC_STANDBY, 4933a66d387SMark Brown .analogue = 1, 4943a66d387SMark Brown .step = { 4953a66d387SMark Brown wm2000_exit_bypass, 4963a66d387SMark Brown wm2000_enter_standby, 4973a66d387SMark Brown }, 4983a66d387SMark Brown }, 4993a66d387SMark Brown { 5003a66d387SMark Brown .source = ANC_BYPASS, 5013a66d387SMark Brown .dest = ANC_OFF, 5023a66d387SMark Brown .step = { 5033a66d387SMark Brown wm2000_exit_bypass, 5043a66d387SMark Brown wm2000_power_down, 5053a66d387SMark Brown }, 5063a66d387SMark Brown }, 5073a66d387SMark Brown { 5083a66d387SMark Brown .source = ANC_STANDBY, 5093a66d387SMark Brown .dest = ANC_ACTIVE, 5103a66d387SMark Brown .analogue = 1, 5113a66d387SMark Brown .step = { 5123a66d387SMark Brown wm2000_exit_standby, 5133a66d387SMark Brown }, 5143a66d387SMark Brown }, 5153a66d387SMark Brown { 5163a66d387SMark Brown .source = ANC_STANDBY, 5173a66d387SMark Brown .dest = ANC_BYPASS, 5183a66d387SMark Brown .analogue = 1, 5193a66d387SMark Brown .step = { 5203a66d387SMark Brown wm2000_exit_standby, 5213a66d387SMark Brown wm2000_enter_bypass, 5223a66d387SMark Brown }, 5233a66d387SMark Brown }, 5243a66d387SMark Brown { 5253a66d387SMark Brown .source = ANC_STANDBY, 5263a66d387SMark Brown .dest = ANC_OFF, 5273a66d387SMark Brown .step = { 5283a66d387SMark Brown wm2000_exit_standby, 5293a66d387SMark Brown wm2000_power_down, 5303a66d387SMark Brown }, 5313a66d387SMark Brown }, 5323a66d387SMark Brown }; 5333a66d387SMark Brown 5343a66d387SMark Brown static int wm2000_anc_transition(struct wm2000_priv *wm2000, 5353a66d387SMark Brown enum wm2000_anc_mode mode) 5363a66d387SMark Brown { 5373a66d387SMark Brown struct i2c_client *i2c = wm2000->i2c; 5383a66d387SMark Brown int i, j; 539*be2af740SYang Yingliang int ret = 0; 5403a66d387SMark Brown 5413a66d387SMark Brown if (wm2000->anc_mode == mode) 5423a66d387SMark Brown return 0; 5433a66d387SMark Brown 5443a66d387SMark Brown for (i = 0; i < ARRAY_SIZE(anc_transitions); i++) 5453a66d387SMark Brown if (anc_transitions[i].source == wm2000->anc_mode && 5463a66d387SMark Brown anc_transitions[i].dest == mode) 5473a66d387SMark Brown break; 5483a66d387SMark Brown if (i == ARRAY_SIZE(anc_transitions)) { 5493a66d387SMark Brown dev_err(&i2c->dev, "No transition for %d->%d\n", 5503a66d387SMark Brown wm2000->anc_mode, mode); 5513a66d387SMark Brown return -EINVAL; 5523a66d387SMark Brown } 5533a66d387SMark Brown 554514cfd6dSMark Brown /* Maintain clock while active */ 555514cfd6dSMark Brown if (anc_transitions[i].source == ANC_OFF) { 556514cfd6dSMark Brown ret = clk_prepare_enable(wm2000->mclk); 557514cfd6dSMark Brown if (ret != 0) { 558514cfd6dSMark Brown dev_err(&i2c->dev, "Failed to enable MCLK: %d\n", ret); 559514cfd6dSMark Brown return ret; 560514cfd6dSMark Brown } 561514cfd6dSMark Brown } 562514cfd6dSMark Brown 5633a66d387SMark Brown for (j = 0; j < ARRAY_SIZE(anc_transitions[j].step); j++) { 5643a66d387SMark Brown if (!anc_transitions[i].step[j]) 5653a66d387SMark Brown break; 5663a66d387SMark Brown ret = anc_transitions[i].step[j](i2c, 5673a66d387SMark Brown anc_transitions[i].analogue); 5683a66d387SMark Brown if (ret != 0) 569*be2af740SYang Yingliang break; 5703a66d387SMark Brown } 5713a66d387SMark Brown 572514cfd6dSMark Brown if (anc_transitions[i].dest == ANC_OFF) 573514cfd6dSMark Brown clk_disable_unprepare(wm2000->mclk); 574514cfd6dSMark Brown 575*be2af740SYang Yingliang return ret; 5763a66d387SMark Brown } 5773a66d387SMark Brown 5783a66d387SMark Brown static int wm2000_anc_set_mode(struct wm2000_priv *wm2000) 5793a66d387SMark Brown { 5803a66d387SMark Brown struct i2c_client *i2c = wm2000->i2c; 5813a66d387SMark Brown enum wm2000_anc_mode mode; 5823a66d387SMark Brown 5833a66d387SMark Brown if (wm2000->anc_eng_ena && wm2000->spk_ena) 5843a66d387SMark Brown if (wm2000->anc_active) 5853a66d387SMark Brown mode = ANC_ACTIVE; 5863a66d387SMark Brown else 5873a66d387SMark Brown mode = ANC_BYPASS; 5883a66d387SMark Brown else 5893a66d387SMark Brown mode = ANC_STANDBY; 5903a66d387SMark Brown 5913a66d387SMark Brown dev_dbg(&i2c->dev, "Set mode %d (enabled %d, mute %d, active %d)\n", 5923a66d387SMark Brown mode, wm2000->anc_eng_ena, !wm2000->spk_ena, 5933a66d387SMark Brown wm2000->anc_active); 5943a66d387SMark Brown 5953a66d387SMark Brown return wm2000_anc_transition(wm2000, mode); 5963a66d387SMark Brown } 5973a66d387SMark Brown 5983a66d387SMark Brown static int wm2000_anc_mode_get(struct snd_kcontrol *kcontrol, 5993a66d387SMark Brown struct snd_ctl_elem_value *ucontrol) 6003a66d387SMark Brown { 601e5449affSKuninori Morimoto struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 602e5449affSKuninori Morimoto struct wm2000_priv *wm2000 = dev_get_drvdata(component->dev); 6033a66d387SMark Brown 60400a14c29STakashi Iwai ucontrol->value.integer.value[0] = wm2000->anc_active; 6053a66d387SMark Brown 6063a66d387SMark Brown return 0; 6073a66d387SMark Brown } 6083a66d387SMark Brown 6093a66d387SMark Brown static int wm2000_anc_mode_put(struct snd_kcontrol *kcontrol, 6103a66d387SMark Brown struct snd_ctl_elem_value *ucontrol) 6113a66d387SMark Brown { 612e5449affSKuninori Morimoto struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 613e5449affSKuninori Morimoto struct wm2000_priv *wm2000 = dev_get_drvdata(component->dev); 6148444f59fSDan Carpenter unsigned int anc_active = ucontrol->value.integer.value[0]; 6158e9bb423SMark Brown int ret; 6163a66d387SMark Brown 6173a66d387SMark Brown if (anc_active > 1) 6183a66d387SMark Brown return -EINVAL; 6193a66d387SMark Brown 6208e9bb423SMark Brown mutex_lock(&wm2000->lock); 6218e9bb423SMark Brown 6223a66d387SMark Brown wm2000->anc_active = anc_active; 6233a66d387SMark Brown 6248e9bb423SMark Brown ret = wm2000_anc_set_mode(wm2000); 6258e9bb423SMark Brown 6268e9bb423SMark Brown mutex_unlock(&wm2000->lock); 6278e9bb423SMark Brown 6288e9bb423SMark Brown return ret; 6293a66d387SMark Brown } 6303a66d387SMark Brown 6313a66d387SMark Brown static int wm2000_speaker_get(struct snd_kcontrol *kcontrol, 6323a66d387SMark Brown struct snd_ctl_elem_value *ucontrol) 6333a66d387SMark Brown { 634e5449affSKuninori Morimoto struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 635e5449affSKuninori Morimoto struct wm2000_priv *wm2000 = dev_get_drvdata(component->dev); 6363a66d387SMark Brown 63700a14c29STakashi Iwai ucontrol->value.integer.value[0] = wm2000->spk_ena; 6383a66d387SMark Brown 6393a66d387SMark Brown return 0; 6403a66d387SMark Brown } 6413a66d387SMark Brown 6423a66d387SMark Brown static int wm2000_speaker_put(struct snd_kcontrol *kcontrol, 6433a66d387SMark Brown struct snd_ctl_elem_value *ucontrol) 6443a66d387SMark Brown { 645e5449affSKuninori Morimoto struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 646e5449affSKuninori Morimoto struct wm2000_priv *wm2000 = dev_get_drvdata(component->dev); 6478444f59fSDan Carpenter unsigned int val = ucontrol->value.integer.value[0]; 6488e9bb423SMark Brown int ret; 6493a66d387SMark Brown 6503a66d387SMark Brown if (val > 1) 6513a66d387SMark Brown return -EINVAL; 6523a66d387SMark Brown 6538e9bb423SMark Brown mutex_lock(&wm2000->lock); 6548e9bb423SMark Brown 6553a66d387SMark Brown wm2000->spk_ena = val; 6563a66d387SMark Brown 6578e9bb423SMark Brown ret = wm2000_anc_set_mode(wm2000); 6588e9bb423SMark Brown 6598e9bb423SMark Brown mutex_unlock(&wm2000->lock); 6608e9bb423SMark Brown 6618e9bb423SMark Brown return ret; 6623a66d387SMark Brown } 6633a66d387SMark Brown 6643a66d387SMark Brown static const struct snd_kcontrol_new wm2000_controls[] = { 6653f3af6eeSMark Brown SOC_SINGLE("ANC Volume", WM2000_REG_ANC_GAIN_CTRL, 0, 255, 0), 6663a66d387SMark Brown SOC_SINGLE_BOOL_EXT("WM2000 ANC Switch", 0, 6673a66d387SMark Brown wm2000_anc_mode_get, 6683a66d387SMark Brown wm2000_anc_mode_put), 6693a66d387SMark Brown SOC_SINGLE_BOOL_EXT("WM2000 Switch", 0, 6703a66d387SMark Brown wm2000_speaker_get, 6713a66d387SMark Brown wm2000_speaker_put), 6723a66d387SMark Brown }; 6733a66d387SMark Brown 6743a66d387SMark Brown static int wm2000_anc_power_event(struct snd_soc_dapm_widget *w, 6753a66d387SMark Brown struct snd_kcontrol *kcontrol, int event) 6763a66d387SMark Brown { 677e5449affSKuninori Morimoto struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 678e5449affSKuninori Morimoto struct wm2000_priv *wm2000 = dev_get_drvdata(component->dev); 6798e9bb423SMark Brown int ret; 6808e9bb423SMark Brown 6818e9bb423SMark Brown mutex_lock(&wm2000->lock); 6823a66d387SMark Brown 6833a66d387SMark Brown if (SND_SOC_DAPM_EVENT_ON(event)) 6843a66d387SMark Brown wm2000->anc_eng_ena = 1; 6853a66d387SMark Brown 6863a66d387SMark Brown if (SND_SOC_DAPM_EVENT_OFF(event)) 6873a66d387SMark Brown wm2000->anc_eng_ena = 0; 6883a66d387SMark Brown 6898e9bb423SMark Brown ret = wm2000_anc_set_mode(wm2000); 6908e9bb423SMark Brown 6918e9bb423SMark Brown mutex_unlock(&wm2000->lock); 6928e9bb423SMark Brown 6938e9bb423SMark Brown return ret; 6943a66d387SMark Brown } 6953a66d387SMark Brown 6963a66d387SMark Brown static const struct snd_soc_dapm_widget wm2000_dapm_widgets[] = { 6973a66d387SMark Brown /* Externally visible pins */ 6984911ccdbSMark Brown SND_SOC_DAPM_OUTPUT("SPKN"), 6994911ccdbSMark Brown SND_SOC_DAPM_OUTPUT("SPKP"), 7003a66d387SMark Brown 7014911ccdbSMark Brown SND_SOC_DAPM_INPUT("LINN"), 7024911ccdbSMark Brown SND_SOC_DAPM_INPUT("LINP"), 7033a66d387SMark Brown 7043a66d387SMark Brown SND_SOC_DAPM_PGA_E("ANC Engine", SND_SOC_NOPM, 0, 0, NULL, 0, 7053a66d387SMark Brown wm2000_anc_power_event, 7063a66d387SMark Brown SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 7073a66d387SMark Brown }; 7083a66d387SMark Brown 7093a66d387SMark Brown /* Target, Path, Source */ 7104911ccdbSMark Brown static const struct snd_soc_dapm_route wm2000_audio_map[] = { 7114911ccdbSMark Brown { "SPKN", NULL, "ANC Engine" }, 7124911ccdbSMark Brown { "SPKP", NULL, "ANC Engine" }, 7134911ccdbSMark Brown { "ANC Engine", NULL, "LINN" }, 7144911ccdbSMark Brown { "ANC Engine", NULL, "LINP" }, 7153a66d387SMark Brown }; 7163a66d387SMark Brown 7174911ccdbSMark Brown #ifdef CONFIG_PM 718e5449affSKuninori Morimoto static int wm2000_suspend(struct snd_soc_component *component) 7193a66d387SMark Brown { 720e5449affSKuninori Morimoto struct wm2000_priv *wm2000 = dev_get_drvdata(component->dev); 7213a66d387SMark Brown 7224911ccdbSMark Brown return wm2000_anc_transition(wm2000, ANC_OFF); 7233a66d387SMark Brown } 7243a66d387SMark Brown 725e5449affSKuninori Morimoto static int wm2000_resume(struct snd_soc_component *component) 7264911ccdbSMark Brown { 727e5449affSKuninori Morimoto struct wm2000_priv *wm2000 = dev_get_drvdata(component->dev); 7283a66d387SMark Brown 7294911ccdbSMark Brown return wm2000_anc_set_mode(wm2000); 7303a66d387SMark Brown } 7314911ccdbSMark Brown #else 7324911ccdbSMark Brown #define wm2000_suspend NULL 7334911ccdbSMark Brown #define wm2000_resume NULL 7344911ccdbSMark Brown #endif 7353a66d387SMark Brown 73651cc7ed3SMark Brown static bool wm2000_readable_reg(struct device *dev, unsigned int reg) 73751cc7ed3SMark Brown { 73851cc7ed3SMark Brown switch (reg) { 73951cc7ed3SMark Brown case WM2000_REG_SYS_START: 74033e7546eSMark Brown case WM2000_REG_ANC_GAIN_CTRL: 74133e7546eSMark Brown case WM2000_REG_MSE_TH1: 74233e7546eSMark Brown case WM2000_REG_MSE_TH2: 74351cc7ed3SMark Brown case WM2000_REG_SPEECH_CLARITY: 74451cc7ed3SMark Brown case WM2000_REG_SYS_WATCHDOG: 74551cc7ed3SMark Brown case WM2000_REG_ANA_VMID_PD_TIME: 74651cc7ed3SMark Brown case WM2000_REG_ANA_VMID_PU_TIME: 74751cc7ed3SMark Brown case WM2000_REG_CAT_FLTR_INDX: 74851cc7ed3SMark Brown case WM2000_REG_CAT_GAIN_0: 74951cc7ed3SMark Brown case WM2000_REG_SYS_STATUS: 75051cc7ed3SMark Brown case WM2000_REG_SYS_MODE_CNTRL: 75151cc7ed3SMark Brown case WM2000_REG_SYS_START0: 75251cc7ed3SMark Brown case WM2000_REG_SYS_START1: 75351cc7ed3SMark Brown case WM2000_REG_ID1: 75451cc7ed3SMark Brown case WM2000_REG_ID2: 75551cc7ed3SMark Brown case WM2000_REG_REVISON: 75651cc7ed3SMark Brown case WM2000_REG_SYS_CTL1: 75751cc7ed3SMark Brown case WM2000_REG_SYS_CTL2: 75851cc7ed3SMark Brown case WM2000_REG_ANC_STAT: 75951cc7ed3SMark Brown case WM2000_REG_IF_CTL: 760939dc51bSMark Brown case WM2000_REG_ANA_MIC_CTL: 761939dc51bSMark Brown case WM2000_REG_SPK_CTL: 76251cc7ed3SMark Brown return true; 76351cc7ed3SMark Brown default: 76451cc7ed3SMark Brown return false; 76551cc7ed3SMark Brown } 76651cc7ed3SMark Brown } 76751cc7ed3SMark Brown 7688aa1fe81SMark Brown static const struct regmap_config wm2000_regmap = { 769d0e12f3fSMark Brown .reg_bits = 16, 7708aa1fe81SMark Brown .val_bits = 8, 77151cc7ed3SMark Brown 772939dc51bSMark Brown .max_register = WM2000_REG_SPK_CTL, 77351cc7ed3SMark Brown .readable_reg = wm2000_readable_reg, 7748aa1fe81SMark Brown }; 7758aa1fe81SMark Brown 776e5449affSKuninori Morimoto static int wm2000_probe(struct snd_soc_component *component) 7774911ccdbSMark Brown { 778e5449affSKuninori Morimoto struct wm2000_priv *wm2000 = dev_get_drvdata(component->dev); 7794911ccdbSMark Brown 7804911ccdbSMark Brown /* This will trigger a transition to standby mode by default */ 7814911ccdbSMark Brown wm2000_anc_set_mode(wm2000); 7824911ccdbSMark Brown 7834911ccdbSMark Brown return 0; 7844911ccdbSMark Brown } 7854911ccdbSMark Brown 786e5449affSKuninori Morimoto static void wm2000_remove(struct snd_soc_component *component) 7874911ccdbSMark Brown { 788e5449affSKuninori Morimoto struct wm2000_priv *wm2000 = dev_get_drvdata(component->dev); 7894911ccdbSMark Brown 790e5449affSKuninori Morimoto wm2000_anc_transition(wm2000, ANC_OFF); 7914911ccdbSMark Brown } 7924911ccdbSMark Brown 793e5449affSKuninori Morimoto static const struct snd_soc_component_driver soc_component_dev_wm2000 = { 7944911ccdbSMark Brown .probe = wm2000_probe, 7954911ccdbSMark Brown .remove = wm2000_remove, 7964911ccdbSMark Brown .suspend = wm2000_suspend, 7974911ccdbSMark Brown .resume = wm2000_resume, 798bd22e11eSKuninori Morimoto .controls = wm2000_controls, 799bd22e11eSKuninori Morimoto .num_controls = ARRAY_SIZE(wm2000_controls), 8004911ccdbSMark Brown .dapm_widgets = wm2000_dapm_widgets, 8014911ccdbSMark Brown .num_dapm_widgets = ARRAY_SIZE(wm2000_dapm_widgets), 8024911ccdbSMark Brown .dapm_routes = wm2000_audio_map, 8034911ccdbSMark Brown .num_dapm_routes = ARRAY_SIZE(wm2000_audio_map), 804e5449affSKuninori Morimoto .idle_bias_on = 1, 805e5449affSKuninori Morimoto .use_pmdown_time = 1, 806e5449affSKuninori Morimoto .non_legacy_dai_naming = 1, 8074911ccdbSMark Brown }; 8084911ccdbSMark Brown 80997b0b6e3SStephen Kitt static int wm2000_i2c_probe(struct i2c_client *i2c) 8103a66d387SMark Brown { 8113a66d387SMark Brown struct wm2000_priv *wm2000; 8123a66d387SMark Brown struct wm2000_platform_data *pdata; 8133a66d387SMark Brown const char *filename; 814c83f1d7eSJesper Juhl const struct firmware *fw = NULL; 815a89be93cSMark Brown int ret, i; 816c5d09485SLucas Tanure unsigned int reg; 8173a66d387SMark Brown u16 id; 8183a66d387SMark Brown 819bf0842baSMarkus Elfring wm2000 = devm_kzalloc(&i2c->dev, sizeof(*wm2000), GFP_KERNEL); 820a0f62118SSachin Kamat if (!wm2000) 8213a66d387SMark Brown return -ENOMEM; 8223a66d387SMark Brown 8238e9bb423SMark Brown mutex_init(&wm2000->lock); 8248e9bb423SMark Brown 8258aa1fe81SMark Brown dev_set_drvdata(&i2c->dev, wm2000); 8268aa1fe81SMark Brown 8278fed54aeSMark Brown wm2000->regmap = devm_regmap_init_i2c(i2c, &wm2000_regmap); 8288aa1fe81SMark Brown if (IS_ERR(wm2000->regmap)) { 8298aa1fe81SMark Brown ret = PTR_ERR(wm2000->regmap); 8308aa1fe81SMark Brown dev_err(&i2c->dev, "Failed to allocate register map: %d\n", 8318aa1fe81SMark Brown ret); 832c83f1d7eSJesper Juhl goto out; 8338aa1fe81SMark Brown } 8348aa1fe81SMark Brown 835a89be93cSMark Brown for (i = 0; i < WM2000_NUM_SUPPLIES; i++) 836a89be93cSMark Brown wm2000->supplies[i].supply = wm2000_supplies[i]; 837a89be93cSMark Brown 838a89be93cSMark Brown ret = devm_regulator_bulk_get(&i2c->dev, WM2000_NUM_SUPPLIES, 839a89be93cSMark Brown wm2000->supplies); 840a89be93cSMark Brown if (ret != 0) { 841a89be93cSMark Brown dev_err(&i2c->dev, "Failed to get supplies: %d\n", ret); 842a89be93cSMark Brown return ret; 843a89be93cSMark Brown } 844a89be93cSMark Brown 845a89be93cSMark Brown ret = regulator_bulk_enable(WM2000_NUM_SUPPLIES, wm2000->supplies); 846a89be93cSMark Brown if (ret != 0) { 847a89be93cSMark Brown dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret); 848a89be93cSMark Brown return ret; 849a89be93cSMark Brown } 850a89be93cSMark Brown 8513a66d387SMark Brown /* Verify that this is a WM2000 */ 852c5d09485SLucas Tanure ret = regmap_read(wm2000->regmap, WM2000_REG_ID1, ®); 853c5d09485SLucas Tanure if (ret != 0) { 854c5d09485SLucas Tanure dev_err(&i2c->dev, "Unable to read ID1: %d\n", ret); 855c5d09485SLucas Tanure return ret; 856c5d09485SLucas Tanure } 8573a66d387SMark Brown id = reg << 8; 858c5d09485SLucas Tanure ret = regmap_read(wm2000->regmap, WM2000_REG_ID2, ®); 859c5d09485SLucas Tanure if (ret != 0) { 860c5d09485SLucas Tanure dev_err(&i2c->dev, "Unable to read ID2: %d\n", ret); 861c5d09485SLucas Tanure return ret; 862c5d09485SLucas Tanure } 8633a66d387SMark Brown id |= reg & 0xff; 8643a66d387SMark Brown 8653a66d387SMark Brown if (id != 0x2000) { 8663a66d387SMark Brown dev_err(&i2c->dev, "Device is not a WM2000 - ID %x\n", id); 8673a66d387SMark Brown ret = -ENODEV; 868a89be93cSMark Brown goto err_supplies; 8693a66d387SMark Brown } 8703a66d387SMark Brown 871c5d09485SLucas Tanure ret = regmap_read(wm2000->regmap, WM2000_REG_REVISON, ®); 872c5d09485SLucas Tanure if (ret != 0) { 873c5d09485SLucas Tanure dev_err(&i2c->dev, "Unable to read Revision: %d\n", ret); 874c5d09485SLucas Tanure return ret; 875c5d09485SLucas Tanure } 8763a66d387SMark Brown dev_info(&i2c->dev, "revision %c\n", reg + 'A'); 8773a66d387SMark Brown 878514cfd6dSMark Brown wm2000->mclk = devm_clk_get(&i2c->dev, "MCLK"); 879514cfd6dSMark Brown if (IS_ERR(wm2000->mclk)) { 880514cfd6dSMark Brown ret = PTR_ERR(wm2000->mclk); 881514cfd6dSMark Brown dev_err(&i2c->dev, "Failed to get MCLK: %d\n", ret); 882514cfd6dSMark Brown goto err_supplies; 883514cfd6dSMark Brown } 884514cfd6dSMark Brown 8853a66d387SMark Brown filename = "wm2000_anc.bin"; 8863a66d387SMark Brown pdata = dev_get_platdata(&i2c->dev); 8873a66d387SMark Brown if (pdata) { 8883a66d387SMark Brown wm2000->speech_clarity = !pdata->speech_enh_disable; 8893a66d387SMark Brown 8903a66d387SMark Brown if (pdata->download_file) 8913a66d387SMark Brown filename = pdata->download_file; 8923a66d387SMark Brown } 8933a66d387SMark Brown 8943a66d387SMark Brown ret = request_firmware(&fw, filename, &i2c->dev); 8953a66d387SMark Brown if (ret != 0) { 8963a66d387SMark Brown dev_err(&i2c->dev, "Failed to acquire ANC data: %d\n", ret); 897a89be93cSMark Brown goto err_supplies; 8983a66d387SMark Brown } 8993a66d387SMark Brown 9003a66d387SMark Brown /* Pre-cook the concatenation of the register address onto the image */ 9013a66d387SMark Brown wm2000->anc_download_size = fw->size + 2; 902b03e96e4SMark Brown wm2000->anc_download = devm_kzalloc(&i2c->dev, 903b03e96e4SMark Brown wm2000->anc_download_size, 904b03e96e4SMark Brown GFP_KERNEL); 9053a66d387SMark Brown if (wm2000->anc_download == NULL) { 9063a66d387SMark Brown ret = -ENOMEM; 907a89be93cSMark Brown goto err_supplies; 9083a66d387SMark Brown } 9093a66d387SMark Brown 9103a66d387SMark Brown wm2000->anc_download[0] = 0x80; 9113a66d387SMark Brown wm2000->anc_download[1] = 0x00; 9123a66d387SMark Brown memcpy(wm2000->anc_download + 2, fw->data, fw->size); 9133a66d387SMark Brown 9143a66d387SMark Brown wm2000->anc_eng_ena = 1; 915e71fa370SMark Brown wm2000->anc_active = 1; 916e71fa370SMark Brown wm2000->spk_ena = 1; 9173a66d387SMark Brown wm2000->i2c = i2c; 9183a66d387SMark Brown 9193a66d387SMark Brown wm2000_reset(wm2000); 9203a66d387SMark Brown 921e5449affSKuninori Morimoto ret = devm_snd_soc_register_component(&i2c->dev, 922e5449affSKuninori Morimoto &soc_component_dev_wm2000, NULL, 0); 9233a66d387SMark Brown 924a89be93cSMark Brown err_supplies: 925a89be93cSMark Brown regulator_bulk_disable(WM2000_NUM_SUPPLIES, wm2000->supplies); 9263a66d387SMark Brown 927c83f1d7eSJesper Juhl out: 928c83f1d7eSJesper Juhl release_firmware(fw); 9293a66d387SMark Brown return ret; 9303a66d387SMark Brown } 9313a66d387SMark Brown 9323a66d387SMark Brown static const struct i2c_device_id wm2000_i2c_id[] = { 9333a66d387SMark Brown { "wm2000", 0 }, 9343a66d387SMark Brown { } 9353a66d387SMark Brown }; 9363a66d387SMark Brown MODULE_DEVICE_TABLE(i2c, wm2000_i2c_id); 9373a66d387SMark Brown 9383a66d387SMark Brown static struct i2c_driver wm2000_i2c_driver = { 9393a66d387SMark Brown .driver = { 9403a66d387SMark Brown .name = "wm2000", 9413a66d387SMark Brown }, 94297b0b6e3SStephen Kitt .probe_new = wm2000_i2c_probe, 9433a66d387SMark Brown .id_table = wm2000_i2c_id, 9443a66d387SMark Brown }; 9453a66d387SMark Brown 9463a4bfd88SSachin Kamat module_i2c_driver(wm2000_i2c_driver); 9473a66d387SMark Brown 9483a66d387SMark Brown MODULE_DESCRIPTION("ASoC WM2000 driver"); 9493a66d387SMark Brown MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfonmicro.com>"); 9503a66d387SMark Brown MODULE_LICENSE("GPL"); 951