1210afeecSPeter Ujfalusi /* 2210afeecSPeter Ujfalusi * MFD driver for TWL6040 audio device 3210afeecSPeter Ujfalusi * 4210afeecSPeter Ujfalusi * Authors: Misael Lopez Cruz <misael.lopez@ti.com> 5210afeecSPeter Ujfalusi * Jorge Eduardo Candelaria <jorge.candelaria@ti.com> 6210afeecSPeter Ujfalusi * Peter Ujfalusi <peter.ujfalusi@ti.com> 7210afeecSPeter Ujfalusi * 8210afeecSPeter Ujfalusi * Copyright: (C) 2011 Texas Instruments, Inc. 9210afeecSPeter Ujfalusi * 10210afeecSPeter Ujfalusi * This program is free software; you can redistribute it and/or modify 11210afeecSPeter Ujfalusi * it under the terms of the GNU General Public License version 2 as 12210afeecSPeter Ujfalusi * published by the Free Software Foundation. 13210afeecSPeter Ujfalusi * 14210afeecSPeter Ujfalusi * This program is distributed in the hope that it will be useful, but 15210afeecSPeter Ujfalusi * WITHOUT ANY WARRANTY; without even the implied warranty of 16210afeecSPeter Ujfalusi * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17210afeecSPeter Ujfalusi * General Public License for more details. 18210afeecSPeter Ujfalusi * 19210afeecSPeter Ujfalusi * You should have received a copy of the GNU General Public License 20210afeecSPeter Ujfalusi * along with this program; if not, write to the Free Software 21210afeecSPeter Ujfalusi * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 22210afeecSPeter Ujfalusi * 02110-1301 USA 23210afeecSPeter Ujfalusi * 24210afeecSPeter Ujfalusi */ 25210afeecSPeter Ujfalusi 26210afeecSPeter Ujfalusi #include <linux/module.h> 27210afeecSPeter Ujfalusi #include <linux/types.h> 28210afeecSPeter Ujfalusi #include <linux/slab.h> 29210afeecSPeter Ujfalusi #include <linux/kernel.h> 30210afeecSPeter Ujfalusi #include <linux/err.h> 31210afeecSPeter Ujfalusi #include <linux/platform_device.h> 32210afeecSPeter Ujfalusi #include <linux/of.h> 33210afeecSPeter Ujfalusi #include <linux/of_irq.h> 34210afeecSPeter Ujfalusi #include <linux/of_gpio.h> 35210afeecSPeter Ujfalusi #include <linux/of_platform.h> 36210afeecSPeter Ujfalusi #include <linux/gpio.h> 37210afeecSPeter Ujfalusi #include <linux/delay.h> 38210afeecSPeter Ujfalusi #include <linux/i2c.h> 39210afeecSPeter Ujfalusi #include <linux/regmap.h> 40210afeecSPeter Ujfalusi #include <linux/mfd/core.h> 41210afeecSPeter Ujfalusi #include <linux/mfd/twl6040.h> 42210afeecSPeter Ujfalusi #include <linux/regulator/consumer.h> 43210afeecSPeter Ujfalusi 44210afeecSPeter Ujfalusi #define VIBRACTRL_MEMBER(reg) ((reg == TWL6040_REG_VIBCTLL) ? 0 : 1) 45210afeecSPeter Ujfalusi #define TWL6040_NUM_SUPPLIES (2) 46210afeecSPeter Ujfalusi 47c7f9129dSPeter Ujfalusi static struct reg_default twl6040_defaults[] = { 48c7f9129dSPeter Ujfalusi { 0x01, 0x4B }, /* REG_ASICID (ro) */ 49c7f9129dSPeter Ujfalusi { 0x02, 0x00 }, /* REG_ASICREV (ro) */ 50c7f9129dSPeter Ujfalusi { 0x03, 0x00 }, /* REG_INTID */ 51c7f9129dSPeter Ujfalusi { 0x04, 0x00 }, /* REG_INTMR */ 52c7f9129dSPeter Ujfalusi { 0x05, 0x00 }, /* REG_NCPCTRL */ 53c7f9129dSPeter Ujfalusi { 0x06, 0x00 }, /* REG_LDOCTL */ 54c7f9129dSPeter Ujfalusi { 0x07, 0x60 }, /* REG_HPPLLCTL */ 55c7f9129dSPeter Ujfalusi { 0x08, 0x00 }, /* REG_LPPLLCTL */ 56c7f9129dSPeter Ujfalusi { 0x09, 0x4A }, /* REG_LPPLLDIV */ 57c7f9129dSPeter Ujfalusi { 0x0A, 0x00 }, /* REG_AMICBCTL */ 58c7f9129dSPeter Ujfalusi { 0x0B, 0x00 }, /* REG_DMICBCTL */ 59c7f9129dSPeter Ujfalusi { 0x0C, 0x00 }, /* REG_MICLCTL */ 60c7f9129dSPeter Ujfalusi { 0x0D, 0x00 }, /* REG_MICRCTL */ 61c7f9129dSPeter Ujfalusi { 0x0E, 0x00 }, /* REG_MICGAIN */ 62c7f9129dSPeter Ujfalusi { 0x0F, 0x1B }, /* REG_LINEGAIN */ 63c7f9129dSPeter Ujfalusi { 0x10, 0x00 }, /* REG_HSLCTL */ 64c7f9129dSPeter Ujfalusi { 0x11, 0x00 }, /* REG_HSRCTL */ 65c7f9129dSPeter Ujfalusi { 0x12, 0x00 }, /* REG_HSGAIN */ 66c7f9129dSPeter Ujfalusi { 0x13, 0x00 }, /* REG_EARCTL */ 67c7f9129dSPeter Ujfalusi { 0x14, 0x00 }, /* REG_HFLCTL */ 68c7f9129dSPeter Ujfalusi { 0x15, 0x00 }, /* REG_HFLGAIN */ 69c7f9129dSPeter Ujfalusi { 0x16, 0x00 }, /* REG_HFRCTL */ 70c7f9129dSPeter Ujfalusi { 0x17, 0x00 }, /* REG_HFRGAIN */ 71c7f9129dSPeter Ujfalusi { 0x18, 0x00 }, /* REG_VIBCTLL */ 72c7f9129dSPeter Ujfalusi { 0x19, 0x00 }, /* REG_VIBDATL */ 73c7f9129dSPeter Ujfalusi { 0x1A, 0x00 }, /* REG_VIBCTLR */ 74c7f9129dSPeter Ujfalusi { 0x1B, 0x00 }, /* REG_VIBDATR */ 75c7f9129dSPeter Ujfalusi { 0x1C, 0x00 }, /* REG_HKCTL1 */ 76c7f9129dSPeter Ujfalusi { 0x1D, 0x00 }, /* REG_HKCTL2 */ 77c7f9129dSPeter Ujfalusi { 0x1E, 0x00 }, /* REG_GPOCTL */ 78c7f9129dSPeter Ujfalusi { 0x1F, 0x00 }, /* REG_ALB */ 79c7f9129dSPeter Ujfalusi { 0x20, 0x00 }, /* REG_DLB */ 80c7f9129dSPeter Ujfalusi /* 0x28, REG_TRIM1 */ 81c7f9129dSPeter Ujfalusi /* 0x29, REG_TRIM2 */ 82c7f9129dSPeter Ujfalusi /* 0x2A, REG_TRIM3 */ 83c7f9129dSPeter Ujfalusi /* 0x2B, REG_HSOTRIM */ 84c7f9129dSPeter Ujfalusi /* 0x2C, REG_HFOTRIM */ 85c7f9129dSPeter Ujfalusi { 0x2D, 0x08 }, /* REG_ACCCTL */ 86c7f9129dSPeter Ujfalusi { 0x2E, 0x00 }, /* REG_STATUS (ro) */ 87c7f9129dSPeter Ujfalusi }; 88c7f9129dSPeter Ujfalusi 89c7f9129dSPeter Ujfalusi struct reg_default twl6040_patch[] = { 90c7f9129dSPeter Ujfalusi /* Select I2C bus access to dual access registers */ 91c7f9129dSPeter Ujfalusi { TWL6040_REG_ACCCTL, 0x09 }, 92c7f9129dSPeter Ujfalusi }; 93c7f9129dSPeter Ujfalusi 94c7f9129dSPeter Ujfalusi 95df04b624SPeter Ujfalusi static bool twl6040_has_vibra(struct device_node *node) 96210afeecSPeter Ujfalusi { 97210afeecSPeter Ujfalusi #ifdef CONFIG_OF 98210afeecSPeter Ujfalusi if (of_find_node_by_name(node, "vibra")) 99210afeecSPeter Ujfalusi return true; 100210afeecSPeter Ujfalusi #endif 101210afeecSPeter Ujfalusi return false; 102210afeecSPeter Ujfalusi } 103210afeecSPeter Ujfalusi 104210afeecSPeter Ujfalusi int twl6040_reg_read(struct twl6040 *twl6040, unsigned int reg) 105210afeecSPeter Ujfalusi { 106210afeecSPeter Ujfalusi int ret; 107210afeecSPeter Ujfalusi unsigned int val; 108210afeecSPeter Ujfalusi 109210afeecSPeter Ujfalusi ret = regmap_read(twl6040->regmap, reg, &val); 110210afeecSPeter Ujfalusi if (ret < 0) 111210afeecSPeter Ujfalusi return ret; 112210afeecSPeter Ujfalusi 113210afeecSPeter Ujfalusi return val; 114210afeecSPeter Ujfalusi } 115210afeecSPeter Ujfalusi EXPORT_SYMBOL(twl6040_reg_read); 116210afeecSPeter Ujfalusi 117210afeecSPeter Ujfalusi int twl6040_reg_write(struct twl6040 *twl6040, unsigned int reg, u8 val) 118210afeecSPeter Ujfalusi { 119210afeecSPeter Ujfalusi int ret; 120210afeecSPeter Ujfalusi 121210afeecSPeter Ujfalusi ret = regmap_write(twl6040->regmap, reg, val); 122210afeecSPeter Ujfalusi 123210afeecSPeter Ujfalusi return ret; 124210afeecSPeter Ujfalusi } 125210afeecSPeter Ujfalusi EXPORT_SYMBOL(twl6040_reg_write); 126210afeecSPeter Ujfalusi 127210afeecSPeter Ujfalusi int twl6040_set_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask) 128210afeecSPeter Ujfalusi { 129210afeecSPeter Ujfalusi return regmap_update_bits(twl6040->regmap, reg, mask, mask); 130210afeecSPeter Ujfalusi } 131210afeecSPeter Ujfalusi EXPORT_SYMBOL(twl6040_set_bits); 132210afeecSPeter Ujfalusi 133210afeecSPeter Ujfalusi int twl6040_clear_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask) 134210afeecSPeter Ujfalusi { 135210afeecSPeter Ujfalusi return regmap_update_bits(twl6040->regmap, reg, mask, 0); 136210afeecSPeter Ujfalusi } 137210afeecSPeter Ujfalusi EXPORT_SYMBOL(twl6040_clear_bits); 138210afeecSPeter Ujfalusi 139210afeecSPeter Ujfalusi /* twl6040 codec manual power-up sequence */ 140210afeecSPeter Ujfalusi static int twl6040_power_up_manual(struct twl6040 *twl6040) 141210afeecSPeter Ujfalusi { 142210afeecSPeter Ujfalusi u8 ldoctl, ncpctl, lppllctl; 143210afeecSPeter Ujfalusi int ret; 144210afeecSPeter Ujfalusi 145210afeecSPeter Ujfalusi /* enable high-side LDO, reference system and internal oscillator */ 146210afeecSPeter Ujfalusi ldoctl = TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA; 147210afeecSPeter Ujfalusi ret = twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); 148210afeecSPeter Ujfalusi if (ret) 149210afeecSPeter Ujfalusi return ret; 150210afeecSPeter Ujfalusi usleep_range(10000, 10500); 151210afeecSPeter Ujfalusi 152210afeecSPeter Ujfalusi /* enable negative charge pump */ 153210afeecSPeter Ujfalusi ncpctl = TWL6040_NCPENA; 154210afeecSPeter Ujfalusi ret = twl6040_reg_write(twl6040, TWL6040_REG_NCPCTL, ncpctl); 155210afeecSPeter Ujfalusi if (ret) 156210afeecSPeter Ujfalusi goto ncp_err; 157210afeecSPeter Ujfalusi usleep_range(1000, 1500); 158210afeecSPeter Ujfalusi 159210afeecSPeter Ujfalusi /* enable low-side LDO */ 160210afeecSPeter Ujfalusi ldoctl |= TWL6040_LSLDOENA; 161210afeecSPeter Ujfalusi ret = twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); 162210afeecSPeter Ujfalusi if (ret) 163210afeecSPeter Ujfalusi goto lsldo_err; 164210afeecSPeter Ujfalusi usleep_range(1000, 1500); 165210afeecSPeter Ujfalusi 166210afeecSPeter Ujfalusi /* enable low-power PLL */ 167210afeecSPeter Ujfalusi lppllctl = TWL6040_LPLLENA; 168210afeecSPeter Ujfalusi ret = twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl); 169210afeecSPeter Ujfalusi if (ret) 170210afeecSPeter Ujfalusi goto lppll_err; 171210afeecSPeter Ujfalusi usleep_range(5000, 5500); 172210afeecSPeter Ujfalusi 173210afeecSPeter Ujfalusi /* disable internal oscillator */ 174210afeecSPeter Ujfalusi ldoctl &= ~TWL6040_OSCENA; 175210afeecSPeter Ujfalusi ret = twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); 176210afeecSPeter Ujfalusi if (ret) 177210afeecSPeter Ujfalusi goto osc_err; 178210afeecSPeter Ujfalusi 179210afeecSPeter Ujfalusi return 0; 180210afeecSPeter Ujfalusi 181210afeecSPeter Ujfalusi osc_err: 182210afeecSPeter Ujfalusi lppllctl &= ~TWL6040_LPLLENA; 183210afeecSPeter Ujfalusi twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl); 184210afeecSPeter Ujfalusi lppll_err: 185210afeecSPeter Ujfalusi ldoctl &= ~TWL6040_LSLDOENA; 186210afeecSPeter Ujfalusi twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); 187210afeecSPeter Ujfalusi lsldo_err: 188210afeecSPeter Ujfalusi ncpctl &= ~TWL6040_NCPENA; 189210afeecSPeter Ujfalusi twl6040_reg_write(twl6040, TWL6040_REG_NCPCTL, ncpctl); 190210afeecSPeter Ujfalusi ncp_err: 191210afeecSPeter Ujfalusi ldoctl &= ~(TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA); 192210afeecSPeter Ujfalusi twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); 193210afeecSPeter Ujfalusi 194210afeecSPeter Ujfalusi dev_err(twl6040->dev, "manual power-up failed\n"); 195210afeecSPeter Ujfalusi return ret; 196210afeecSPeter Ujfalusi } 197210afeecSPeter Ujfalusi 198210afeecSPeter Ujfalusi /* twl6040 manual power-down sequence */ 199210afeecSPeter Ujfalusi static void twl6040_power_down_manual(struct twl6040 *twl6040) 200210afeecSPeter Ujfalusi { 201210afeecSPeter Ujfalusi u8 ncpctl, ldoctl, lppllctl; 202210afeecSPeter Ujfalusi 203210afeecSPeter Ujfalusi ncpctl = twl6040_reg_read(twl6040, TWL6040_REG_NCPCTL); 204210afeecSPeter Ujfalusi ldoctl = twl6040_reg_read(twl6040, TWL6040_REG_LDOCTL); 205210afeecSPeter Ujfalusi lppllctl = twl6040_reg_read(twl6040, TWL6040_REG_LPPLLCTL); 206210afeecSPeter Ujfalusi 207210afeecSPeter Ujfalusi /* enable internal oscillator */ 208210afeecSPeter Ujfalusi ldoctl |= TWL6040_OSCENA; 209210afeecSPeter Ujfalusi twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); 210210afeecSPeter Ujfalusi usleep_range(1000, 1500); 211210afeecSPeter Ujfalusi 212210afeecSPeter Ujfalusi /* disable low-power PLL */ 213210afeecSPeter Ujfalusi lppllctl &= ~TWL6040_LPLLENA; 214210afeecSPeter Ujfalusi twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl); 215210afeecSPeter Ujfalusi 216210afeecSPeter Ujfalusi /* disable low-side LDO */ 217210afeecSPeter Ujfalusi ldoctl &= ~TWL6040_LSLDOENA; 218210afeecSPeter Ujfalusi twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); 219210afeecSPeter Ujfalusi 220210afeecSPeter Ujfalusi /* disable negative charge pump */ 221210afeecSPeter Ujfalusi ncpctl &= ~TWL6040_NCPENA; 222210afeecSPeter Ujfalusi twl6040_reg_write(twl6040, TWL6040_REG_NCPCTL, ncpctl); 223210afeecSPeter Ujfalusi 224210afeecSPeter Ujfalusi /* disable high-side LDO, reference system and internal oscillator */ 225210afeecSPeter Ujfalusi ldoctl &= ~(TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA); 226210afeecSPeter Ujfalusi twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); 227210afeecSPeter Ujfalusi } 228210afeecSPeter Ujfalusi 229210afeecSPeter Ujfalusi static irqreturn_t twl6040_readyint_handler(int irq, void *data) 230210afeecSPeter Ujfalusi { 231210afeecSPeter Ujfalusi struct twl6040 *twl6040 = data; 232210afeecSPeter Ujfalusi 233210afeecSPeter Ujfalusi complete(&twl6040->ready); 234210afeecSPeter Ujfalusi 235210afeecSPeter Ujfalusi return IRQ_HANDLED; 236210afeecSPeter Ujfalusi } 237210afeecSPeter Ujfalusi 238210afeecSPeter Ujfalusi static irqreturn_t twl6040_thint_handler(int irq, void *data) 239210afeecSPeter Ujfalusi { 240210afeecSPeter Ujfalusi struct twl6040 *twl6040 = data; 241210afeecSPeter Ujfalusi u8 status; 242210afeecSPeter Ujfalusi 243210afeecSPeter Ujfalusi status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS); 244210afeecSPeter Ujfalusi if (status & TWL6040_TSHUTDET) { 245210afeecSPeter Ujfalusi dev_warn(twl6040->dev, "Thermal shutdown, powering-off"); 246210afeecSPeter Ujfalusi twl6040_power(twl6040, 0); 247210afeecSPeter Ujfalusi } else { 248210afeecSPeter Ujfalusi dev_warn(twl6040->dev, "Leaving thermal shutdown, powering-on"); 249210afeecSPeter Ujfalusi twl6040_power(twl6040, 1); 250210afeecSPeter Ujfalusi } 251210afeecSPeter Ujfalusi 252210afeecSPeter Ujfalusi return IRQ_HANDLED; 253210afeecSPeter Ujfalusi } 254210afeecSPeter Ujfalusi 255210afeecSPeter Ujfalusi static int twl6040_power_up_automatic(struct twl6040 *twl6040) 256210afeecSPeter Ujfalusi { 257210afeecSPeter Ujfalusi int time_left; 258210afeecSPeter Ujfalusi 259210afeecSPeter Ujfalusi gpio_set_value(twl6040->audpwron, 1); 260210afeecSPeter Ujfalusi 261210afeecSPeter Ujfalusi time_left = wait_for_completion_timeout(&twl6040->ready, 262210afeecSPeter Ujfalusi msecs_to_jiffies(144)); 263210afeecSPeter Ujfalusi if (!time_left) { 264210afeecSPeter Ujfalusi u8 intid; 265210afeecSPeter Ujfalusi 266210afeecSPeter Ujfalusi dev_warn(twl6040->dev, "timeout waiting for READYINT\n"); 267210afeecSPeter Ujfalusi intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID); 268210afeecSPeter Ujfalusi if (!(intid & TWL6040_READYINT)) { 269210afeecSPeter Ujfalusi dev_err(twl6040->dev, "automatic power-up failed\n"); 270210afeecSPeter Ujfalusi gpio_set_value(twl6040->audpwron, 0); 271210afeecSPeter Ujfalusi return -ETIMEDOUT; 272210afeecSPeter Ujfalusi } 273210afeecSPeter Ujfalusi } 274210afeecSPeter Ujfalusi 275210afeecSPeter Ujfalusi return 0; 276210afeecSPeter Ujfalusi } 277210afeecSPeter Ujfalusi 278210afeecSPeter Ujfalusi int twl6040_power(struct twl6040 *twl6040, int on) 279210afeecSPeter Ujfalusi { 280210afeecSPeter Ujfalusi int ret = 0; 281210afeecSPeter Ujfalusi 282210afeecSPeter Ujfalusi mutex_lock(&twl6040->mutex); 283210afeecSPeter Ujfalusi 284210afeecSPeter Ujfalusi if (on) { 285210afeecSPeter Ujfalusi /* already powered-up */ 286210afeecSPeter Ujfalusi if (twl6040->power_count++) 287210afeecSPeter Ujfalusi goto out; 288210afeecSPeter Ujfalusi 289c7f9129dSPeter Ujfalusi /* Allow writes to the chip */ 290c7f9129dSPeter Ujfalusi regcache_cache_only(twl6040->regmap, false); 291c7f9129dSPeter Ujfalusi 292210afeecSPeter Ujfalusi if (gpio_is_valid(twl6040->audpwron)) { 293210afeecSPeter Ujfalusi /* use automatic power-up sequence */ 294210afeecSPeter Ujfalusi ret = twl6040_power_up_automatic(twl6040); 295210afeecSPeter Ujfalusi if (ret) { 296210afeecSPeter Ujfalusi twl6040->power_count = 0; 297210afeecSPeter Ujfalusi goto out; 298210afeecSPeter Ujfalusi } 299210afeecSPeter Ujfalusi } else { 300210afeecSPeter Ujfalusi /* use manual power-up sequence */ 301210afeecSPeter Ujfalusi ret = twl6040_power_up_manual(twl6040); 302210afeecSPeter Ujfalusi if (ret) { 303210afeecSPeter Ujfalusi twl6040->power_count = 0; 304210afeecSPeter Ujfalusi goto out; 305210afeecSPeter Ujfalusi } 306210afeecSPeter Ujfalusi } 307c7f9129dSPeter Ujfalusi 308c7f9129dSPeter Ujfalusi /* Sync with the HW */ 309c7f9129dSPeter Ujfalusi regcache_sync(twl6040->regmap); 310c7f9129dSPeter Ujfalusi 311210afeecSPeter Ujfalusi /* Default PLL configuration after power up */ 312210afeecSPeter Ujfalusi twl6040->pll = TWL6040_SYSCLK_SEL_LPPLL; 313210afeecSPeter Ujfalusi twl6040->sysclk = 19200000; 314210afeecSPeter Ujfalusi twl6040->mclk = 32768; 315210afeecSPeter Ujfalusi } else { 316210afeecSPeter Ujfalusi /* already powered-down */ 317210afeecSPeter Ujfalusi if (!twl6040->power_count) { 318210afeecSPeter Ujfalusi dev_err(twl6040->dev, 319210afeecSPeter Ujfalusi "device is already powered-off\n"); 320210afeecSPeter Ujfalusi ret = -EPERM; 321210afeecSPeter Ujfalusi goto out; 322210afeecSPeter Ujfalusi } 323210afeecSPeter Ujfalusi 324210afeecSPeter Ujfalusi if (--twl6040->power_count) 325210afeecSPeter Ujfalusi goto out; 326210afeecSPeter Ujfalusi 327210afeecSPeter Ujfalusi if (gpio_is_valid(twl6040->audpwron)) { 328210afeecSPeter Ujfalusi /* use AUDPWRON line */ 329210afeecSPeter Ujfalusi gpio_set_value(twl6040->audpwron, 0); 330210afeecSPeter Ujfalusi 331210afeecSPeter Ujfalusi /* power-down sequence latency */ 332210afeecSPeter Ujfalusi usleep_range(500, 700); 333210afeecSPeter Ujfalusi } else { 334210afeecSPeter Ujfalusi /* use manual power-down sequence */ 335210afeecSPeter Ujfalusi twl6040_power_down_manual(twl6040); 336210afeecSPeter Ujfalusi } 337c7f9129dSPeter Ujfalusi 338c7f9129dSPeter Ujfalusi /* Set regmap to cache only and mark it as dirty */ 339c7f9129dSPeter Ujfalusi regcache_cache_only(twl6040->regmap, true); 340c7f9129dSPeter Ujfalusi regcache_mark_dirty(twl6040->regmap); 341c7f9129dSPeter Ujfalusi 342210afeecSPeter Ujfalusi twl6040->sysclk = 0; 343210afeecSPeter Ujfalusi twl6040->mclk = 0; 344210afeecSPeter Ujfalusi } 345210afeecSPeter Ujfalusi 346210afeecSPeter Ujfalusi out: 347210afeecSPeter Ujfalusi mutex_unlock(&twl6040->mutex); 348210afeecSPeter Ujfalusi return ret; 349210afeecSPeter Ujfalusi } 350210afeecSPeter Ujfalusi EXPORT_SYMBOL(twl6040_power); 351210afeecSPeter Ujfalusi 352210afeecSPeter Ujfalusi int twl6040_set_pll(struct twl6040 *twl6040, int pll_id, 353210afeecSPeter Ujfalusi unsigned int freq_in, unsigned int freq_out) 354210afeecSPeter Ujfalusi { 355210afeecSPeter Ujfalusi u8 hppllctl, lppllctl; 356210afeecSPeter Ujfalusi int ret = 0; 357210afeecSPeter Ujfalusi 358210afeecSPeter Ujfalusi mutex_lock(&twl6040->mutex); 359210afeecSPeter Ujfalusi 360210afeecSPeter Ujfalusi hppllctl = twl6040_reg_read(twl6040, TWL6040_REG_HPPLLCTL); 361210afeecSPeter Ujfalusi lppllctl = twl6040_reg_read(twl6040, TWL6040_REG_LPPLLCTL); 362210afeecSPeter Ujfalusi 363210afeecSPeter Ujfalusi /* Force full reconfiguration when switching between PLL */ 364210afeecSPeter Ujfalusi if (pll_id != twl6040->pll) { 365210afeecSPeter Ujfalusi twl6040->sysclk = 0; 366210afeecSPeter Ujfalusi twl6040->mclk = 0; 367210afeecSPeter Ujfalusi } 368210afeecSPeter Ujfalusi 369210afeecSPeter Ujfalusi switch (pll_id) { 370210afeecSPeter Ujfalusi case TWL6040_SYSCLK_SEL_LPPLL: 371210afeecSPeter Ujfalusi /* low-power PLL divider */ 372210afeecSPeter Ujfalusi /* Change the sysclk configuration only if it has been canged */ 373210afeecSPeter Ujfalusi if (twl6040->sysclk != freq_out) { 374210afeecSPeter Ujfalusi switch (freq_out) { 375210afeecSPeter Ujfalusi case 17640000: 376210afeecSPeter Ujfalusi lppllctl |= TWL6040_LPLLFIN; 377210afeecSPeter Ujfalusi break; 378210afeecSPeter Ujfalusi case 19200000: 379210afeecSPeter Ujfalusi lppllctl &= ~TWL6040_LPLLFIN; 380210afeecSPeter Ujfalusi break; 381210afeecSPeter Ujfalusi default: 382210afeecSPeter Ujfalusi dev_err(twl6040->dev, 383210afeecSPeter Ujfalusi "freq_out %d not supported\n", 384210afeecSPeter Ujfalusi freq_out); 385210afeecSPeter Ujfalusi ret = -EINVAL; 386210afeecSPeter Ujfalusi goto pll_out; 387210afeecSPeter Ujfalusi } 388210afeecSPeter Ujfalusi twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, 389210afeecSPeter Ujfalusi lppllctl); 390210afeecSPeter Ujfalusi } 391210afeecSPeter Ujfalusi 392210afeecSPeter Ujfalusi /* The PLL in use has not been change, we can exit */ 393210afeecSPeter Ujfalusi if (twl6040->pll == pll_id) 394210afeecSPeter Ujfalusi break; 395210afeecSPeter Ujfalusi 396210afeecSPeter Ujfalusi switch (freq_in) { 397210afeecSPeter Ujfalusi case 32768: 398210afeecSPeter Ujfalusi lppllctl |= TWL6040_LPLLENA; 399210afeecSPeter Ujfalusi twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, 400210afeecSPeter Ujfalusi lppllctl); 401210afeecSPeter Ujfalusi mdelay(5); 402210afeecSPeter Ujfalusi lppllctl &= ~TWL6040_HPLLSEL; 403210afeecSPeter Ujfalusi twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, 404210afeecSPeter Ujfalusi lppllctl); 405210afeecSPeter Ujfalusi hppllctl &= ~TWL6040_HPLLENA; 406210afeecSPeter Ujfalusi twl6040_reg_write(twl6040, TWL6040_REG_HPPLLCTL, 407210afeecSPeter Ujfalusi hppllctl); 408210afeecSPeter Ujfalusi break; 409210afeecSPeter Ujfalusi default: 410210afeecSPeter Ujfalusi dev_err(twl6040->dev, 411210afeecSPeter Ujfalusi "freq_in %d not supported\n", freq_in); 412210afeecSPeter Ujfalusi ret = -EINVAL; 413210afeecSPeter Ujfalusi goto pll_out; 414210afeecSPeter Ujfalusi } 415210afeecSPeter Ujfalusi break; 416210afeecSPeter Ujfalusi case TWL6040_SYSCLK_SEL_HPPLL: 417210afeecSPeter Ujfalusi /* high-performance PLL can provide only 19.2 MHz */ 418210afeecSPeter Ujfalusi if (freq_out != 19200000) { 419210afeecSPeter Ujfalusi dev_err(twl6040->dev, 420210afeecSPeter Ujfalusi "freq_out %d not supported\n", freq_out); 421210afeecSPeter Ujfalusi ret = -EINVAL; 422210afeecSPeter Ujfalusi goto pll_out; 423210afeecSPeter Ujfalusi } 424210afeecSPeter Ujfalusi 425210afeecSPeter Ujfalusi if (twl6040->mclk != freq_in) { 426210afeecSPeter Ujfalusi hppllctl &= ~TWL6040_MCLK_MSK; 427210afeecSPeter Ujfalusi 428210afeecSPeter Ujfalusi switch (freq_in) { 429210afeecSPeter Ujfalusi case 12000000: 430210afeecSPeter Ujfalusi /* PLL enabled, active mode */ 431210afeecSPeter Ujfalusi hppllctl |= TWL6040_MCLK_12000KHZ | 432210afeecSPeter Ujfalusi TWL6040_HPLLENA; 433210afeecSPeter Ujfalusi break; 434210afeecSPeter Ujfalusi case 19200000: 435210afeecSPeter Ujfalusi /* 436210afeecSPeter Ujfalusi * PLL disabled 437210afeecSPeter Ujfalusi * (enable PLL if MCLK jitter quality 438210afeecSPeter Ujfalusi * doesn't meet specification) 439210afeecSPeter Ujfalusi */ 440210afeecSPeter Ujfalusi hppllctl |= TWL6040_MCLK_19200KHZ; 441210afeecSPeter Ujfalusi break; 442210afeecSPeter Ujfalusi case 26000000: 443210afeecSPeter Ujfalusi /* PLL enabled, active mode */ 444210afeecSPeter Ujfalusi hppllctl |= TWL6040_MCLK_26000KHZ | 445210afeecSPeter Ujfalusi TWL6040_HPLLENA; 446210afeecSPeter Ujfalusi break; 447210afeecSPeter Ujfalusi case 38400000: 448210afeecSPeter Ujfalusi /* PLL enabled, active mode */ 449210afeecSPeter Ujfalusi hppllctl |= TWL6040_MCLK_38400KHZ | 450210afeecSPeter Ujfalusi TWL6040_HPLLENA; 451210afeecSPeter Ujfalusi break; 452210afeecSPeter Ujfalusi default: 453210afeecSPeter Ujfalusi dev_err(twl6040->dev, 454210afeecSPeter Ujfalusi "freq_in %d not supported\n", freq_in); 455210afeecSPeter Ujfalusi ret = -EINVAL; 456210afeecSPeter Ujfalusi goto pll_out; 457210afeecSPeter Ujfalusi } 458210afeecSPeter Ujfalusi 459210afeecSPeter Ujfalusi /* 460210afeecSPeter Ujfalusi * enable clock slicer to ensure input waveform is 461210afeecSPeter Ujfalusi * square 462210afeecSPeter Ujfalusi */ 463210afeecSPeter Ujfalusi hppllctl |= TWL6040_HPLLSQRENA; 464210afeecSPeter Ujfalusi 465210afeecSPeter Ujfalusi twl6040_reg_write(twl6040, TWL6040_REG_HPPLLCTL, 466210afeecSPeter Ujfalusi hppllctl); 467210afeecSPeter Ujfalusi usleep_range(500, 700); 468210afeecSPeter Ujfalusi lppllctl |= TWL6040_HPLLSEL; 469210afeecSPeter Ujfalusi twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, 470210afeecSPeter Ujfalusi lppllctl); 471210afeecSPeter Ujfalusi lppllctl &= ~TWL6040_LPLLENA; 472210afeecSPeter Ujfalusi twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, 473210afeecSPeter Ujfalusi lppllctl); 474210afeecSPeter Ujfalusi } 475210afeecSPeter Ujfalusi break; 476210afeecSPeter Ujfalusi default: 477210afeecSPeter Ujfalusi dev_err(twl6040->dev, "unknown pll id %d\n", pll_id); 478210afeecSPeter Ujfalusi ret = -EINVAL; 479210afeecSPeter Ujfalusi goto pll_out; 480210afeecSPeter Ujfalusi } 481210afeecSPeter Ujfalusi 482210afeecSPeter Ujfalusi twl6040->sysclk = freq_out; 483210afeecSPeter Ujfalusi twl6040->mclk = freq_in; 484210afeecSPeter Ujfalusi twl6040->pll = pll_id; 485210afeecSPeter Ujfalusi 486210afeecSPeter Ujfalusi pll_out: 487210afeecSPeter Ujfalusi mutex_unlock(&twl6040->mutex); 488210afeecSPeter Ujfalusi return ret; 489210afeecSPeter Ujfalusi } 490210afeecSPeter Ujfalusi EXPORT_SYMBOL(twl6040_set_pll); 491210afeecSPeter Ujfalusi 492210afeecSPeter Ujfalusi int twl6040_get_pll(struct twl6040 *twl6040) 493210afeecSPeter Ujfalusi { 494210afeecSPeter Ujfalusi if (twl6040->power_count) 495210afeecSPeter Ujfalusi return twl6040->pll; 496210afeecSPeter Ujfalusi else 497210afeecSPeter Ujfalusi return -ENODEV; 498210afeecSPeter Ujfalusi } 499210afeecSPeter Ujfalusi EXPORT_SYMBOL(twl6040_get_pll); 500210afeecSPeter Ujfalusi 501210afeecSPeter Ujfalusi unsigned int twl6040_get_sysclk(struct twl6040 *twl6040) 502210afeecSPeter Ujfalusi { 503210afeecSPeter Ujfalusi return twl6040->sysclk; 504210afeecSPeter Ujfalusi } 505210afeecSPeter Ujfalusi EXPORT_SYMBOL(twl6040_get_sysclk); 506210afeecSPeter Ujfalusi 507210afeecSPeter Ujfalusi /* Get the combined status of the vibra control register */ 508210afeecSPeter Ujfalusi int twl6040_get_vibralr_status(struct twl6040 *twl6040) 509210afeecSPeter Ujfalusi { 510c6f39257SMark Brown unsigned int reg; 511c6f39257SMark Brown int ret; 512210afeecSPeter Ujfalusi u8 status; 513210afeecSPeter Ujfalusi 514c6f39257SMark Brown ret = regmap_read(twl6040->regmap, TWL6040_REG_VIBCTLL, ®); 515c6f39257SMark Brown if (ret != 0) 516c6f39257SMark Brown return ret; 517c6f39257SMark Brown status = reg; 518c6f39257SMark Brown 519c6f39257SMark Brown ret = regmap_read(twl6040->regmap, TWL6040_REG_VIBCTLR, ®); 520c6f39257SMark Brown if (ret != 0) 521c6f39257SMark Brown return ret; 522c6f39257SMark Brown status |= reg; 523c6f39257SMark Brown 524210afeecSPeter Ujfalusi status &= (TWL6040_VIBENA | TWL6040_VIBSEL); 525210afeecSPeter Ujfalusi 526210afeecSPeter Ujfalusi return status; 527210afeecSPeter Ujfalusi } 528210afeecSPeter Ujfalusi EXPORT_SYMBOL(twl6040_get_vibralr_status); 529210afeecSPeter Ujfalusi 530210afeecSPeter Ujfalusi static struct resource twl6040_vibra_rsrc[] = { 531210afeecSPeter Ujfalusi { 532210afeecSPeter Ujfalusi .flags = IORESOURCE_IRQ, 533210afeecSPeter Ujfalusi }, 534210afeecSPeter Ujfalusi }; 535210afeecSPeter Ujfalusi 536210afeecSPeter Ujfalusi static struct resource twl6040_codec_rsrc[] = { 537210afeecSPeter Ujfalusi { 538210afeecSPeter Ujfalusi .flags = IORESOURCE_IRQ, 539210afeecSPeter Ujfalusi }, 540210afeecSPeter Ujfalusi }; 541210afeecSPeter Ujfalusi 542210afeecSPeter Ujfalusi static bool twl6040_readable_reg(struct device *dev, unsigned int reg) 543210afeecSPeter Ujfalusi { 544210afeecSPeter Ujfalusi /* Register 0 is not readable */ 545210afeecSPeter Ujfalusi if (!reg) 546210afeecSPeter Ujfalusi return false; 547210afeecSPeter Ujfalusi return true; 548210afeecSPeter Ujfalusi } 549210afeecSPeter Ujfalusi 550c6f39257SMark Brown static bool twl6040_volatile_reg(struct device *dev, unsigned int reg) 551c6f39257SMark Brown { 552c6f39257SMark Brown switch (reg) { 553c7f9129dSPeter Ujfalusi case TWL6040_REG_ASICID: 554c7f9129dSPeter Ujfalusi case TWL6040_REG_ASICREV: 555c7f9129dSPeter Ujfalusi case TWL6040_REG_INTID: 556c7f9129dSPeter Ujfalusi case TWL6040_REG_LPPLLCTL: 557c7f9129dSPeter Ujfalusi case TWL6040_REG_HPPLLCTL: 558c7f9129dSPeter Ujfalusi case TWL6040_REG_STATUS: 559c7f9129dSPeter Ujfalusi return true; 560c7f9129dSPeter Ujfalusi default: 561c7f9129dSPeter Ujfalusi return false; 562c7f9129dSPeter Ujfalusi } 563c7f9129dSPeter Ujfalusi } 564c7f9129dSPeter Ujfalusi 565c7f9129dSPeter Ujfalusi static bool twl6040_writeable_reg(struct device *dev, unsigned int reg) 566c7f9129dSPeter Ujfalusi { 567c7f9129dSPeter Ujfalusi switch (reg) { 568c7f9129dSPeter Ujfalusi case TWL6040_REG_ASICID: 569c7f9129dSPeter Ujfalusi case TWL6040_REG_ASICREV: 570c7f9129dSPeter Ujfalusi case TWL6040_REG_STATUS: 571c6f39257SMark Brown return false; 572c6f39257SMark Brown default: 573c6f39257SMark Brown return true; 574c6f39257SMark Brown } 575c6f39257SMark Brown } 576c6f39257SMark Brown 577210afeecSPeter Ujfalusi static struct regmap_config twl6040_regmap_config = { 578210afeecSPeter Ujfalusi .reg_bits = 8, 579210afeecSPeter Ujfalusi .val_bits = 8, 580c7f9129dSPeter Ujfalusi 581c7f9129dSPeter Ujfalusi .reg_defaults = twl6040_defaults, 582c7f9129dSPeter Ujfalusi .num_reg_defaults = ARRAY_SIZE(twl6040_defaults), 583c7f9129dSPeter Ujfalusi 584210afeecSPeter Ujfalusi .max_register = TWL6040_REG_STATUS, /* 0x2e */ 585210afeecSPeter Ujfalusi 586210afeecSPeter Ujfalusi .readable_reg = twl6040_readable_reg, 587c6f39257SMark Brown .volatile_reg = twl6040_volatile_reg, 588c7f9129dSPeter Ujfalusi .writeable_reg = twl6040_writeable_reg, 589c6f39257SMark Brown 590c6f39257SMark Brown .cache_type = REGCACHE_RBTREE, 591210afeecSPeter Ujfalusi }; 592210afeecSPeter Ujfalusi 593210afeecSPeter Ujfalusi static const struct regmap_irq twl6040_irqs[] = { 594210afeecSPeter Ujfalusi { .reg_offset = 0, .mask = TWL6040_THINT, }, 595210afeecSPeter Ujfalusi { .reg_offset = 0, .mask = TWL6040_PLUGINT | TWL6040_UNPLUGINT, }, 596210afeecSPeter Ujfalusi { .reg_offset = 0, .mask = TWL6040_HOOKINT, }, 597210afeecSPeter Ujfalusi { .reg_offset = 0, .mask = TWL6040_HFINT, }, 598210afeecSPeter Ujfalusi { .reg_offset = 0, .mask = TWL6040_VIBINT, }, 599210afeecSPeter Ujfalusi { .reg_offset = 0, .mask = TWL6040_READYINT, }, 600210afeecSPeter Ujfalusi }; 601210afeecSPeter Ujfalusi 602210afeecSPeter Ujfalusi static struct regmap_irq_chip twl6040_irq_chip = { 603210afeecSPeter Ujfalusi .name = "twl6040", 604210afeecSPeter Ujfalusi .irqs = twl6040_irqs, 605210afeecSPeter Ujfalusi .num_irqs = ARRAY_SIZE(twl6040_irqs), 606210afeecSPeter Ujfalusi 607210afeecSPeter Ujfalusi .num_regs = 1, 608210afeecSPeter Ujfalusi .status_base = TWL6040_REG_INTID, 609210afeecSPeter Ujfalusi .mask_base = TWL6040_REG_INTMR, 610210afeecSPeter Ujfalusi }; 611210afeecSPeter Ujfalusi 612612b95cdSGreg Kroah-Hartman static int twl6040_probe(struct i2c_client *client, 613210afeecSPeter Ujfalusi const struct i2c_device_id *id) 614210afeecSPeter Ujfalusi { 615210afeecSPeter Ujfalusi struct device_node *node = client->dev.of_node; 616210afeecSPeter Ujfalusi struct twl6040 *twl6040; 617210afeecSPeter Ujfalusi struct mfd_cell *cell = NULL; 618210afeecSPeter Ujfalusi int irq, ret, children = 0; 619210afeecSPeter Ujfalusi 620df04b624SPeter Ujfalusi if (!node) { 621df04b624SPeter Ujfalusi dev_err(&client->dev, "of node is missing\n"); 622210afeecSPeter Ujfalusi return -EINVAL; 623210afeecSPeter Ujfalusi } 624210afeecSPeter Ujfalusi 625210afeecSPeter Ujfalusi /* In order to operate correctly we need valid interrupt config */ 626210afeecSPeter Ujfalusi if (!client->irq) { 627210afeecSPeter Ujfalusi dev_err(&client->dev, "Invalid IRQ configuration\n"); 628210afeecSPeter Ujfalusi return -EINVAL; 629210afeecSPeter Ujfalusi } 630210afeecSPeter Ujfalusi 631210afeecSPeter Ujfalusi twl6040 = devm_kzalloc(&client->dev, sizeof(struct twl6040), 632210afeecSPeter Ujfalusi GFP_KERNEL); 633ecc8fa1cSPeter Ujfalusi if (!twl6040) 634ecc8fa1cSPeter Ujfalusi return -ENOMEM; 635210afeecSPeter Ujfalusi 636210afeecSPeter Ujfalusi twl6040->regmap = devm_regmap_init_i2c(client, &twl6040_regmap_config); 637ecc8fa1cSPeter Ujfalusi if (IS_ERR(twl6040->regmap)) 638ecc8fa1cSPeter Ujfalusi return PTR_ERR(twl6040->regmap); 639210afeecSPeter Ujfalusi 640210afeecSPeter Ujfalusi i2c_set_clientdata(client, twl6040); 641210afeecSPeter Ujfalusi 642210afeecSPeter Ujfalusi twl6040->supplies[0].supply = "vio"; 643210afeecSPeter Ujfalusi twl6040->supplies[1].supply = "v2v1"; 644990810b0SJingoo Han ret = devm_regulator_bulk_get(&client->dev, TWL6040_NUM_SUPPLIES, 645210afeecSPeter Ujfalusi twl6040->supplies); 646210afeecSPeter Ujfalusi if (ret != 0) { 647210afeecSPeter Ujfalusi dev_err(&client->dev, "Failed to get supplies: %d\n", ret); 648501d609aSWolfram Sang return ret; 649210afeecSPeter Ujfalusi } 650210afeecSPeter Ujfalusi 651210afeecSPeter Ujfalusi ret = regulator_bulk_enable(TWL6040_NUM_SUPPLIES, twl6040->supplies); 652210afeecSPeter Ujfalusi if (ret != 0) { 653210afeecSPeter Ujfalusi dev_err(&client->dev, "Failed to enable supplies: %d\n", ret); 654501d609aSWolfram Sang return ret; 655210afeecSPeter Ujfalusi } 656210afeecSPeter Ujfalusi 657210afeecSPeter Ujfalusi twl6040->dev = &client->dev; 658210afeecSPeter Ujfalusi twl6040->irq = client->irq; 659210afeecSPeter Ujfalusi 660210afeecSPeter Ujfalusi mutex_init(&twl6040->mutex); 661210afeecSPeter Ujfalusi init_completion(&twl6040->ready); 662210afeecSPeter Ujfalusi 663210afeecSPeter Ujfalusi twl6040->rev = twl6040_reg_read(twl6040, TWL6040_REG_ASICREV); 664210afeecSPeter Ujfalusi 665210afeecSPeter Ujfalusi /* ERRATA: Automatic power-up is not possible in ES1.0 */ 666df04b624SPeter Ujfalusi if (twl6040_get_revid(twl6040) > TWL6040_REV_ES1_0) 667210afeecSPeter Ujfalusi twl6040->audpwron = of_get_named_gpio(node, 668210afeecSPeter Ujfalusi "ti,audpwron-gpio", 0); 669df04b624SPeter Ujfalusi else 670210afeecSPeter Ujfalusi twl6040->audpwron = -EINVAL; 671210afeecSPeter Ujfalusi 672210afeecSPeter Ujfalusi if (gpio_is_valid(twl6040->audpwron)) { 673990810b0SJingoo Han ret = devm_gpio_request_one(&client->dev, twl6040->audpwron, 674990810b0SJingoo Han GPIOF_OUT_INIT_LOW, "audpwron"); 675210afeecSPeter Ujfalusi if (ret) 676210afeecSPeter Ujfalusi goto gpio_err; 677210afeecSPeter Ujfalusi } 678210afeecSPeter Ujfalusi 67937aefe9fSPeter Ujfalusi ret = regmap_add_irq_chip(twl6040->regmap, twl6040->irq, IRQF_ONESHOT, 68037aefe9fSPeter Ujfalusi 0, &twl6040_irq_chip,&twl6040->irq_data); 681210afeecSPeter Ujfalusi if (ret < 0) 682990810b0SJingoo Han goto gpio_err; 683210afeecSPeter Ujfalusi 684210afeecSPeter Ujfalusi twl6040->irq_ready = regmap_irq_get_virq(twl6040->irq_data, 685210afeecSPeter Ujfalusi TWL6040_IRQ_READY); 686210afeecSPeter Ujfalusi twl6040->irq_th = regmap_irq_get_virq(twl6040->irq_data, 687210afeecSPeter Ujfalusi TWL6040_IRQ_TH); 688210afeecSPeter Ujfalusi 689990810b0SJingoo Han ret = devm_request_threaded_irq(twl6040->dev, twl6040->irq_ready, NULL, 690210afeecSPeter Ujfalusi twl6040_readyint_handler, IRQF_ONESHOT, 691210afeecSPeter Ujfalusi "twl6040_irq_ready", twl6040); 692210afeecSPeter Ujfalusi if (ret) { 693210afeecSPeter Ujfalusi dev_err(twl6040->dev, "READY IRQ request failed: %d\n", ret); 694210afeecSPeter Ujfalusi goto readyirq_err; 695210afeecSPeter Ujfalusi } 696210afeecSPeter Ujfalusi 697990810b0SJingoo Han ret = devm_request_threaded_irq(twl6040->dev, twl6040->irq_th, NULL, 698210afeecSPeter Ujfalusi twl6040_thint_handler, IRQF_ONESHOT, 699210afeecSPeter Ujfalusi "twl6040_irq_th", twl6040); 700210afeecSPeter Ujfalusi if (ret) { 701210afeecSPeter Ujfalusi dev_err(twl6040->dev, "Thermal IRQ request failed: %d\n", ret); 702fc5ee96fSWei Yongjun goto readyirq_err; 703210afeecSPeter Ujfalusi } 704210afeecSPeter Ujfalusi 705210afeecSPeter Ujfalusi /* dual-access registers controlled by I2C only */ 706210afeecSPeter Ujfalusi twl6040_set_bits(twl6040, TWL6040_REG_ACCCTL, TWL6040_I2CSEL); 707c7f9129dSPeter Ujfalusi regmap_register_patch(twl6040->regmap, twl6040_patch, 708c7f9129dSPeter Ujfalusi ARRAY_SIZE(twl6040_patch)); 709210afeecSPeter Ujfalusi 710210afeecSPeter Ujfalusi /* 711210afeecSPeter Ujfalusi * The main functionality of twl6040 to provide audio on OMAP4+ systems. 712210afeecSPeter Ujfalusi * We can add the ASoC codec child whenever this driver has been loaded. 713210afeecSPeter Ujfalusi */ 714210afeecSPeter Ujfalusi irq = regmap_irq_get_virq(twl6040->irq_data, TWL6040_IRQ_PLUG); 715210afeecSPeter Ujfalusi cell = &twl6040->cells[children]; 716210afeecSPeter Ujfalusi cell->name = "twl6040-codec"; 717210afeecSPeter Ujfalusi twl6040_codec_rsrc[0].start = irq; 718210afeecSPeter Ujfalusi twl6040_codec_rsrc[0].end = irq; 719210afeecSPeter Ujfalusi cell->resources = twl6040_codec_rsrc; 720210afeecSPeter Ujfalusi cell->num_resources = ARRAY_SIZE(twl6040_codec_rsrc); 721210afeecSPeter Ujfalusi children++; 722210afeecSPeter Ujfalusi 723df04b624SPeter Ujfalusi /* Vibra input driver support */ 724df04b624SPeter Ujfalusi if (twl6040_has_vibra(node)) { 725210afeecSPeter Ujfalusi irq = regmap_irq_get_virq(twl6040->irq_data, TWL6040_IRQ_VIB); 726210afeecSPeter Ujfalusi 727210afeecSPeter Ujfalusi cell = &twl6040->cells[children]; 728210afeecSPeter Ujfalusi cell->name = "twl6040-vibra"; 729210afeecSPeter Ujfalusi twl6040_vibra_rsrc[0].start = irq; 730210afeecSPeter Ujfalusi twl6040_vibra_rsrc[0].end = irq; 731210afeecSPeter Ujfalusi cell->resources = twl6040_vibra_rsrc; 732210afeecSPeter Ujfalusi cell->num_resources = ARRAY_SIZE(twl6040_vibra_rsrc); 733210afeecSPeter Ujfalusi children++; 734210afeecSPeter Ujfalusi } 735210afeecSPeter Ujfalusi 736df04b624SPeter Ujfalusi /* GPO support */ 737210afeecSPeter Ujfalusi cell = &twl6040->cells[children]; 738210afeecSPeter Ujfalusi cell->name = "twl6040-gpo"; 739210afeecSPeter Ujfalusi children++; 740210afeecSPeter Ujfalusi 741c7f9129dSPeter Ujfalusi /* The chip is powered down so mark regmap to cache only and dirty */ 742c7f9129dSPeter Ujfalusi regcache_cache_only(twl6040->regmap, true); 743c7f9129dSPeter Ujfalusi regcache_mark_dirty(twl6040->regmap); 744c7f9129dSPeter Ujfalusi 745210afeecSPeter Ujfalusi ret = mfd_add_devices(&client->dev, -1, twl6040->cells, children, 746210afeecSPeter Ujfalusi NULL, 0, NULL); 747210afeecSPeter Ujfalusi if (ret) 748fc5ee96fSWei Yongjun goto readyirq_err; 749210afeecSPeter Ujfalusi 750210afeecSPeter Ujfalusi return 0; 751210afeecSPeter Ujfalusi 752210afeecSPeter Ujfalusi readyirq_err: 753210afeecSPeter Ujfalusi regmap_del_irq_chip(twl6040->irq, twl6040->irq_data); 754210afeecSPeter Ujfalusi gpio_err: 755210afeecSPeter Ujfalusi regulator_bulk_disable(TWL6040_NUM_SUPPLIES, twl6040->supplies); 756210afeecSPeter Ujfalusi return ret; 757210afeecSPeter Ujfalusi } 758210afeecSPeter Ujfalusi 759612b95cdSGreg Kroah-Hartman static int twl6040_remove(struct i2c_client *client) 760210afeecSPeter Ujfalusi { 761210afeecSPeter Ujfalusi struct twl6040 *twl6040 = i2c_get_clientdata(client); 762210afeecSPeter Ujfalusi 763210afeecSPeter Ujfalusi if (twl6040->power_count) 764210afeecSPeter Ujfalusi twl6040_power(twl6040, 0); 765210afeecSPeter Ujfalusi 766210afeecSPeter Ujfalusi regmap_del_irq_chip(twl6040->irq, twl6040->irq_data); 767210afeecSPeter Ujfalusi 768210afeecSPeter Ujfalusi mfd_remove_devices(&client->dev); 769210afeecSPeter Ujfalusi 770210afeecSPeter Ujfalusi regulator_bulk_disable(TWL6040_NUM_SUPPLIES, twl6040->supplies); 771210afeecSPeter Ujfalusi 772210afeecSPeter Ujfalusi return 0; 773210afeecSPeter Ujfalusi } 774210afeecSPeter Ujfalusi 775210afeecSPeter Ujfalusi static const struct i2c_device_id twl6040_i2c_id[] = { 776210afeecSPeter Ujfalusi { "twl6040", 0, }, 777210afeecSPeter Ujfalusi { "twl6041", 0, }, 778210afeecSPeter Ujfalusi { }, 779210afeecSPeter Ujfalusi }; 780210afeecSPeter Ujfalusi MODULE_DEVICE_TABLE(i2c, twl6040_i2c_id); 781210afeecSPeter Ujfalusi 782210afeecSPeter Ujfalusi static struct i2c_driver twl6040_driver = { 783210afeecSPeter Ujfalusi .driver = { 784210afeecSPeter Ujfalusi .name = "twl6040", 785210afeecSPeter Ujfalusi .owner = THIS_MODULE, 786210afeecSPeter Ujfalusi }, 787210afeecSPeter Ujfalusi .probe = twl6040_probe, 788612b95cdSGreg Kroah-Hartman .remove = twl6040_remove, 789210afeecSPeter Ujfalusi .id_table = twl6040_i2c_id, 790210afeecSPeter Ujfalusi }; 791210afeecSPeter Ujfalusi 792210afeecSPeter Ujfalusi module_i2c_driver(twl6040_driver); 793210afeecSPeter Ujfalusi 794210afeecSPeter Ujfalusi MODULE_DESCRIPTION("TWL6040 MFD"); 795210afeecSPeter Ujfalusi MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>"); 796210afeecSPeter Ujfalusi MODULE_AUTHOR("Jorge Eduardo Candelaria <jorge.candelaria@ti.com>"); 797210afeecSPeter Ujfalusi MODULE_LICENSE("GPL"); 798210afeecSPeter Ujfalusi MODULE_ALIAS("platform:twl6040"); 799