1*a87a6653SShuming Fan // SPDX-License-Identifier: GPL-2.0 2*a87a6653SShuming Fan // 3*a87a6653SShuming Fan // rt1308-sdw.c -- rt1308 ALSA SoC audio driver 4*a87a6653SShuming Fan // 5*a87a6653SShuming Fan // Copyright(c) 2019 Realtek Semiconductor Corp. 6*a87a6653SShuming Fan // 7*a87a6653SShuming Fan // 8*a87a6653SShuming Fan #include <linux/delay.h> 9*a87a6653SShuming Fan #include <linux/device.h> 10*a87a6653SShuming Fan #include <linux/pm_runtime.h> 11*a87a6653SShuming Fan #include <linux/mod_devicetable.h> 12*a87a6653SShuming Fan #include <linux/soundwire/sdw.h> 13*a87a6653SShuming Fan #include <linux/soundwire/sdw_type.h> 14*a87a6653SShuming Fan #include <linux/soundwire/sdw_registers.h> 15*a87a6653SShuming Fan #include <linux/module.h> 16*a87a6653SShuming Fan #include <linux/regmap.h> 17*a87a6653SShuming Fan #include <sound/core.h> 18*a87a6653SShuming Fan #include <sound/pcm.h> 19*a87a6653SShuming Fan #include <sound/pcm_params.h> 20*a87a6653SShuming Fan #include <sound/soc.h> 21*a87a6653SShuming Fan #include <sound/soc-dapm.h> 22*a87a6653SShuming Fan #include <sound/initval.h> 23*a87a6653SShuming Fan 24*a87a6653SShuming Fan #include "rt1308.h" 25*a87a6653SShuming Fan #include "rt1308-sdw.h" 26*a87a6653SShuming Fan 27*a87a6653SShuming Fan static bool rt1308_readable_register(struct device *dev, unsigned int reg) 28*a87a6653SShuming Fan { 29*a87a6653SShuming Fan switch (reg) { 30*a87a6653SShuming Fan case 0x00e0: 31*a87a6653SShuming Fan case 0x00f0: 32*a87a6653SShuming Fan case 0x2f01 ... 0x2f07: 33*a87a6653SShuming Fan case 0x3000 ... 0x3001: 34*a87a6653SShuming Fan case 0x3004 ... 0x3005: 35*a87a6653SShuming Fan case 0x3008: 36*a87a6653SShuming Fan case 0x300a: 37*a87a6653SShuming Fan case 0xc000 ... 0xcff3: 38*a87a6653SShuming Fan return true; 39*a87a6653SShuming Fan default: 40*a87a6653SShuming Fan return false; 41*a87a6653SShuming Fan } 42*a87a6653SShuming Fan } 43*a87a6653SShuming Fan 44*a87a6653SShuming Fan static bool rt1308_volatile_register(struct device *dev, unsigned int reg) 45*a87a6653SShuming Fan { 46*a87a6653SShuming Fan switch (reg) { 47*a87a6653SShuming Fan case 0x2f01 ... 0x2f07: 48*a87a6653SShuming Fan case 0x3000 ... 0x3001: 49*a87a6653SShuming Fan case 0x3004 ... 0x3005: 50*a87a6653SShuming Fan case 0x3008: 51*a87a6653SShuming Fan case 0x300a: 52*a87a6653SShuming Fan case 0xc000: 53*a87a6653SShuming Fan return true; 54*a87a6653SShuming Fan default: 55*a87a6653SShuming Fan return false; 56*a87a6653SShuming Fan } 57*a87a6653SShuming Fan } 58*a87a6653SShuming Fan 59*a87a6653SShuming Fan static const struct regmap_config rt1308_sdw_regmap = { 60*a87a6653SShuming Fan .reg_bits = 32, 61*a87a6653SShuming Fan .val_bits = 8, 62*a87a6653SShuming Fan .readable_reg = rt1308_readable_register, 63*a87a6653SShuming Fan .volatile_reg = rt1308_volatile_register, 64*a87a6653SShuming Fan .max_register = 0xcfff, 65*a87a6653SShuming Fan .reg_defaults = rt1308_reg_defaults, 66*a87a6653SShuming Fan .num_reg_defaults = ARRAY_SIZE(rt1308_reg_defaults), 67*a87a6653SShuming Fan .cache_type = REGCACHE_RBTREE, 68*a87a6653SShuming Fan .use_single_read = true, 69*a87a6653SShuming Fan .use_single_write = true, 70*a87a6653SShuming Fan }; 71*a87a6653SShuming Fan 72*a87a6653SShuming Fan /* Bus clock frequency */ 73*a87a6653SShuming Fan #define RT1308_CLK_FREQ_9600000HZ 9600000 74*a87a6653SShuming Fan #define RT1308_CLK_FREQ_12000000HZ 12000000 75*a87a6653SShuming Fan #define RT1308_CLK_FREQ_6000000HZ 6000000 76*a87a6653SShuming Fan #define RT1308_CLK_FREQ_4800000HZ 4800000 77*a87a6653SShuming Fan #define RT1308_CLK_FREQ_2400000HZ 2400000 78*a87a6653SShuming Fan #define RT1308_CLK_FREQ_12288000HZ 12288000 79*a87a6653SShuming Fan 80*a87a6653SShuming Fan static int rt1308_clock_config(struct device *dev) 81*a87a6653SShuming Fan { 82*a87a6653SShuming Fan struct rt1308_sdw_priv *rt1308 = dev_get_drvdata(dev); 83*a87a6653SShuming Fan unsigned int clk_freq, value; 84*a87a6653SShuming Fan 85*a87a6653SShuming Fan clk_freq = (rt1308->params.curr_dr_freq >> 1); 86*a87a6653SShuming Fan 87*a87a6653SShuming Fan switch (clk_freq) { 88*a87a6653SShuming Fan case RT1308_CLK_FREQ_12000000HZ: 89*a87a6653SShuming Fan value = 0x0; 90*a87a6653SShuming Fan break; 91*a87a6653SShuming Fan case RT1308_CLK_FREQ_6000000HZ: 92*a87a6653SShuming Fan value = 0x1; 93*a87a6653SShuming Fan break; 94*a87a6653SShuming Fan case RT1308_CLK_FREQ_9600000HZ: 95*a87a6653SShuming Fan value = 0x2; 96*a87a6653SShuming Fan break; 97*a87a6653SShuming Fan case RT1308_CLK_FREQ_4800000HZ: 98*a87a6653SShuming Fan value = 0x3; 99*a87a6653SShuming Fan break; 100*a87a6653SShuming Fan case RT1308_CLK_FREQ_2400000HZ: 101*a87a6653SShuming Fan value = 0x4; 102*a87a6653SShuming Fan break; 103*a87a6653SShuming Fan case RT1308_CLK_FREQ_12288000HZ: 104*a87a6653SShuming Fan value = 0x5; 105*a87a6653SShuming Fan break; 106*a87a6653SShuming Fan default: 107*a87a6653SShuming Fan return -EINVAL; 108*a87a6653SShuming Fan } 109*a87a6653SShuming Fan 110*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xe0, value); 111*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xf0, value); 112*a87a6653SShuming Fan 113*a87a6653SShuming Fan dev_dbg(dev, "%s complete, clk_freq=%d\n", __func__, clk_freq); 114*a87a6653SShuming Fan 115*a87a6653SShuming Fan return 0; 116*a87a6653SShuming Fan } 117*a87a6653SShuming Fan 118*a87a6653SShuming Fan static int rt1308_read_prop(struct sdw_slave *slave) 119*a87a6653SShuming Fan { 120*a87a6653SShuming Fan struct sdw_slave_prop *prop = &slave->prop; 121*a87a6653SShuming Fan int nval, i, num_of_ports = 1; 122*a87a6653SShuming Fan u32 bit; 123*a87a6653SShuming Fan unsigned long addr; 124*a87a6653SShuming Fan struct sdw_dpn_prop *dpn; 125*a87a6653SShuming Fan 126*a87a6653SShuming Fan prop->paging_support = true; 127*a87a6653SShuming Fan 128*a87a6653SShuming Fan /* first we need to allocate memory for set bits in port lists */ 129*a87a6653SShuming Fan prop->source_ports = 0x00; /* BITMAP: 00010100 (not enable yet) */ 130*a87a6653SShuming Fan prop->sink_ports = 0x2; /* BITMAP: 00000010 */ 131*a87a6653SShuming Fan 132*a87a6653SShuming Fan /* for sink */ 133*a87a6653SShuming Fan nval = hweight32(prop->sink_ports); 134*a87a6653SShuming Fan num_of_ports += nval; 135*a87a6653SShuming Fan prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval, 136*a87a6653SShuming Fan sizeof(*prop->sink_dpn_prop), 137*a87a6653SShuming Fan GFP_KERNEL); 138*a87a6653SShuming Fan if (!prop->sink_dpn_prop) 139*a87a6653SShuming Fan return -ENOMEM; 140*a87a6653SShuming Fan 141*a87a6653SShuming Fan i = 0; 142*a87a6653SShuming Fan dpn = prop->sink_dpn_prop; 143*a87a6653SShuming Fan addr = prop->sink_ports; 144*a87a6653SShuming Fan for_each_set_bit(bit, &addr, 32) { 145*a87a6653SShuming Fan dpn[i].num = bit; 146*a87a6653SShuming Fan dpn[i].type = SDW_DPN_FULL; 147*a87a6653SShuming Fan dpn[i].simple_ch_prep_sm = true; 148*a87a6653SShuming Fan dpn[i].ch_prep_timeout = 10; 149*a87a6653SShuming Fan i++; 150*a87a6653SShuming Fan } 151*a87a6653SShuming Fan 152*a87a6653SShuming Fan /* Allocate port_ready based on num_of_ports */ 153*a87a6653SShuming Fan slave->port_ready = devm_kcalloc(&slave->dev, num_of_ports, 154*a87a6653SShuming Fan sizeof(*slave->port_ready), 155*a87a6653SShuming Fan GFP_KERNEL); 156*a87a6653SShuming Fan if (!slave->port_ready) 157*a87a6653SShuming Fan return -ENOMEM; 158*a87a6653SShuming Fan 159*a87a6653SShuming Fan /* Initialize completion */ 160*a87a6653SShuming Fan for (i = 0; i < num_of_ports; i++) 161*a87a6653SShuming Fan init_completion(&slave->port_ready[i]); 162*a87a6653SShuming Fan 163*a87a6653SShuming Fan /* set the timeout values */ 164*a87a6653SShuming Fan prop->clk_stop_timeout = 20; 165*a87a6653SShuming Fan 166*a87a6653SShuming Fan dev_dbg(&slave->dev, "%s\n", __func__); 167*a87a6653SShuming Fan 168*a87a6653SShuming Fan return 0; 169*a87a6653SShuming Fan } 170*a87a6653SShuming Fan 171*a87a6653SShuming Fan static int rt1308_io_init(struct device *dev, struct sdw_slave *slave) 172*a87a6653SShuming Fan { 173*a87a6653SShuming Fan struct rt1308_sdw_priv *rt1308 = dev_get_drvdata(dev); 174*a87a6653SShuming Fan int ret = 0; 175*a87a6653SShuming Fan unsigned int efuse_m_btl_l, efuse_m_btl_r, tmp; 176*a87a6653SShuming Fan unsigned int efuse_c_btl_l, efuse_c_btl_r; 177*a87a6653SShuming Fan 178*a87a6653SShuming Fan if (rt1308->hw_init) 179*a87a6653SShuming Fan return 0; 180*a87a6653SShuming Fan 181*a87a6653SShuming Fan ret = rt1308_read_prop(slave); 182*a87a6653SShuming Fan if (ret < 0) 183*a87a6653SShuming Fan goto _io_init_err_; 184*a87a6653SShuming Fan 185*a87a6653SShuming Fan if (rt1308->first_hw_init) { 186*a87a6653SShuming Fan regcache_cache_only(rt1308->regmap, false); 187*a87a6653SShuming Fan regcache_cache_bypass(rt1308->regmap, true); 188*a87a6653SShuming Fan } 189*a87a6653SShuming Fan 190*a87a6653SShuming Fan /* 191*a87a6653SShuming Fan * PM runtime is only enabled when a Slave reports as Attached 192*a87a6653SShuming Fan */ 193*a87a6653SShuming Fan if (!rt1308->first_hw_init) { 194*a87a6653SShuming Fan /* set autosuspend parameters */ 195*a87a6653SShuming Fan pm_runtime_set_autosuspend_delay(&slave->dev, 3000); 196*a87a6653SShuming Fan pm_runtime_use_autosuspend(&slave->dev); 197*a87a6653SShuming Fan 198*a87a6653SShuming Fan /* update count of parent 'active' children */ 199*a87a6653SShuming Fan pm_runtime_set_active(&slave->dev); 200*a87a6653SShuming Fan 201*a87a6653SShuming Fan /* make sure the device does not suspend immediately */ 202*a87a6653SShuming Fan pm_runtime_mark_last_busy(&slave->dev); 203*a87a6653SShuming Fan 204*a87a6653SShuming Fan pm_runtime_enable(&slave->dev); 205*a87a6653SShuming Fan } 206*a87a6653SShuming Fan 207*a87a6653SShuming Fan pm_runtime_get_noresume(&slave->dev); 208*a87a6653SShuming Fan 209*a87a6653SShuming Fan /* sw reset */ 210*a87a6653SShuming Fan regmap_write(rt1308->regmap, RT1308_SDW_RESET, 0); 211*a87a6653SShuming Fan 212*a87a6653SShuming Fan /* read efuse */ 213*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc360, 0x01); 214*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc361, 0x80); 215*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc7f0, 0x04); 216*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc7f1, 0xfe); 217*a87a6653SShuming Fan msleep(100); 218*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc7f0, 0x44); 219*a87a6653SShuming Fan msleep(20); 220*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc240, 0x10); 221*a87a6653SShuming Fan 222*a87a6653SShuming Fan regmap_read(rt1308->regmap, 0xc861, &tmp); 223*a87a6653SShuming Fan efuse_m_btl_l = tmp; 224*a87a6653SShuming Fan regmap_read(rt1308->regmap, 0xc860, &tmp); 225*a87a6653SShuming Fan efuse_m_btl_l = efuse_m_btl_l | (tmp << 8); 226*a87a6653SShuming Fan regmap_read(rt1308->regmap, 0xc863, &tmp); 227*a87a6653SShuming Fan efuse_c_btl_l = tmp; 228*a87a6653SShuming Fan regmap_read(rt1308->regmap, 0xc862, &tmp); 229*a87a6653SShuming Fan efuse_c_btl_l = efuse_c_btl_l | (tmp << 8); 230*a87a6653SShuming Fan regmap_read(rt1308->regmap, 0xc871, &tmp); 231*a87a6653SShuming Fan efuse_m_btl_r = tmp; 232*a87a6653SShuming Fan regmap_read(rt1308->regmap, 0xc870, &tmp); 233*a87a6653SShuming Fan efuse_m_btl_r = efuse_m_btl_r | (tmp << 8); 234*a87a6653SShuming Fan regmap_read(rt1308->regmap, 0xc873, &tmp); 235*a87a6653SShuming Fan efuse_c_btl_r = tmp; 236*a87a6653SShuming Fan regmap_read(rt1308->regmap, 0xc872, &tmp); 237*a87a6653SShuming Fan efuse_c_btl_r = efuse_c_btl_r | (tmp << 8); 238*a87a6653SShuming Fan dev_info(&slave->dev, "%s m_btl_l=0x%x, m_btl_r=0x%x\n", __func__, 239*a87a6653SShuming Fan efuse_m_btl_l, efuse_m_btl_r); 240*a87a6653SShuming Fan dev_info(&slave->dev, "%s c_btl_l=0x%x, c_btl_r=0x%x\n", __func__, 241*a87a6653SShuming Fan efuse_c_btl_l, efuse_c_btl_r); 242*a87a6653SShuming Fan 243*a87a6653SShuming Fan /* initial settings */ 244*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc103, 0xc0); 245*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc030, 0x17); 246*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc031, 0x81); 247*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc032, 0x26); 248*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc040, 0x80); 249*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc041, 0x80); 250*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc042, 0x06); 251*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc052, 0x0a); 252*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc080, 0x0a); 253*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc060, 0x02); 254*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc061, 0x75); 255*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc062, 0x05); 256*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc171, 0x07); 257*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc173, 0x0d); 258*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc311, 0x7f); 259*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc900, 0x90); 260*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc1a0, 0x84); 261*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc1a1, 0x01); 262*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc360, 0x78); 263*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc361, 0x87); 264*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc0a1, 0x71); 265*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc210, 0x00); 266*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc070, 0x00); 267*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc100, 0xd7); 268*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc101, 0xd7); 269*a87a6653SShuming Fan regmap_write(rt1308->regmap, 0xc300, 0x09); 270*a87a6653SShuming Fan 271*a87a6653SShuming Fan if (rt1308->first_hw_init) { 272*a87a6653SShuming Fan regcache_cache_bypass(rt1308->regmap, false); 273*a87a6653SShuming Fan regcache_mark_dirty(rt1308->regmap); 274*a87a6653SShuming Fan } else 275*a87a6653SShuming Fan rt1308->first_hw_init = true; 276*a87a6653SShuming Fan 277*a87a6653SShuming Fan /* Mark Slave initialization complete */ 278*a87a6653SShuming Fan rt1308->hw_init = true; 279*a87a6653SShuming Fan 280*a87a6653SShuming Fan pm_runtime_mark_last_busy(&slave->dev); 281*a87a6653SShuming Fan pm_runtime_put_autosuspend(&slave->dev); 282*a87a6653SShuming Fan 283*a87a6653SShuming Fan dev_dbg(&slave->dev, "%s hw_init complete\n", __func__); 284*a87a6653SShuming Fan 285*a87a6653SShuming Fan _io_init_err_: 286*a87a6653SShuming Fan return ret; 287*a87a6653SShuming Fan } 288*a87a6653SShuming Fan 289*a87a6653SShuming Fan static int rt1308_update_status(struct sdw_slave *slave, 290*a87a6653SShuming Fan enum sdw_slave_status status) 291*a87a6653SShuming Fan { 292*a87a6653SShuming Fan struct rt1308_sdw_priv *rt1308 = dev_get_drvdata(&slave->dev); 293*a87a6653SShuming Fan 294*a87a6653SShuming Fan /* Update the status */ 295*a87a6653SShuming Fan rt1308->status = status; 296*a87a6653SShuming Fan 297*a87a6653SShuming Fan if (status == SDW_SLAVE_UNATTACHED) 298*a87a6653SShuming Fan rt1308->hw_init = false; 299*a87a6653SShuming Fan 300*a87a6653SShuming Fan /* 301*a87a6653SShuming Fan * Perform initialization only if slave status is present and 302*a87a6653SShuming Fan * hw_init flag is false 303*a87a6653SShuming Fan */ 304*a87a6653SShuming Fan if (rt1308->hw_init || rt1308->status != SDW_SLAVE_ATTACHED) 305*a87a6653SShuming Fan return 0; 306*a87a6653SShuming Fan 307*a87a6653SShuming Fan /* perform I/O transfers required for Slave initialization */ 308*a87a6653SShuming Fan return rt1308_io_init(&slave->dev, slave); 309*a87a6653SShuming Fan } 310*a87a6653SShuming Fan 311*a87a6653SShuming Fan static int rt1308_bus_config(struct sdw_slave *slave, 312*a87a6653SShuming Fan struct sdw_bus_params *params) 313*a87a6653SShuming Fan { 314*a87a6653SShuming Fan struct rt1308_sdw_priv *rt1308 = dev_get_drvdata(&slave->dev); 315*a87a6653SShuming Fan int ret; 316*a87a6653SShuming Fan 317*a87a6653SShuming Fan memcpy(&rt1308->params, params, sizeof(*params)); 318*a87a6653SShuming Fan 319*a87a6653SShuming Fan ret = rt1308_clock_config(&slave->dev); 320*a87a6653SShuming Fan if (ret < 0) 321*a87a6653SShuming Fan dev_err(&slave->dev, "Invalid clk config"); 322*a87a6653SShuming Fan 323*a87a6653SShuming Fan return ret; 324*a87a6653SShuming Fan } 325*a87a6653SShuming Fan 326*a87a6653SShuming Fan static int rt1308_interrupt_callback(struct sdw_slave *slave, 327*a87a6653SShuming Fan struct sdw_slave_intr_status *status) 328*a87a6653SShuming Fan { 329*a87a6653SShuming Fan dev_dbg(&slave->dev, 330*a87a6653SShuming Fan "%s control_port_stat=%x", __func__, status->control_port); 331*a87a6653SShuming Fan 332*a87a6653SShuming Fan return 0; 333*a87a6653SShuming Fan } 334*a87a6653SShuming Fan 335*a87a6653SShuming Fan static int rt1308_classd_event(struct snd_soc_dapm_widget *w, 336*a87a6653SShuming Fan struct snd_kcontrol *kcontrol, int event) 337*a87a6653SShuming Fan { 338*a87a6653SShuming Fan struct snd_soc_component *component = 339*a87a6653SShuming Fan snd_soc_dapm_to_component(w->dapm); 340*a87a6653SShuming Fan 341*a87a6653SShuming Fan switch (event) { 342*a87a6653SShuming Fan case SND_SOC_DAPM_POST_PMU: 343*a87a6653SShuming Fan msleep(30); 344*a87a6653SShuming Fan snd_soc_component_update_bits(component, 345*a87a6653SShuming Fan RT1308_SDW_OFFSET | (RT1308_POWER_STATUS << 4), 346*a87a6653SShuming Fan 0x3, 0x3); 347*a87a6653SShuming Fan msleep(40); 348*a87a6653SShuming Fan break; 349*a87a6653SShuming Fan case SND_SOC_DAPM_PRE_PMD: 350*a87a6653SShuming Fan snd_soc_component_update_bits(component, 351*a87a6653SShuming Fan RT1308_SDW_OFFSET | (RT1308_POWER_STATUS << 4), 352*a87a6653SShuming Fan 0x3, 0); 353*a87a6653SShuming Fan usleep_range(150000, 200000); 354*a87a6653SShuming Fan break; 355*a87a6653SShuming Fan 356*a87a6653SShuming Fan default: 357*a87a6653SShuming Fan break; 358*a87a6653SShuming Fan } 359*a87a6653SShuming Fan 360*a87a6653SShuming Fan return 0; 361*a87a6653SShuming Fan } 362*a87a6653SShuming Fan 363*a87a6653SShuming Fan static const char * const rt1308_rx_data_ch_select[] = { 364*a87a6653SShuming Fan "LR", 365*a87a6653SShuming Fan "LL", 366*a87a6653SShuming Fan "RL", 367*a87a6653SShuming Fan "RR", 368*a87a6653SShuming Fan }; 369*a87a6653SShuming Fan 370*a87a6653SShuming Fan static SOC_ENUM_SINGLE_DECL(rt1308_rx_data_ch_enum, 371*a87a6653SShuming Fan RT1308_SDW_OFFSET | (RT1308_DATA_PATH << 4), 0, 372*a87a6653SShuming Fan rt1308_rx_data_ch_select); 373*a87a6653SShuming Fan 374*a87a6653SShuming Fan static const struct snd_kcontrol_new rt1308_snd_controls[] = { 375*a87a6653SShuming Fan 376*a87a6653SShuming Fan /* I2S Data Channel Selection */ 377*a87a6653SShuming Fan SOC_ENUM("RX Channel Select", rt1308_rx_data_ch_enum), 378*a87a6653SShuming Fan }; 379*a87a6653SShuming Fan 380*a87a6653SShuming Fan static const struct snd_kcontrol_new rt1308_sto_dac_l = 381*a87a6653SShuming Fan SOC_DAPM_SINGLE_AUTODISABLE("Switch", 382*a87a6653SShuming Fan RT1308_SDW_OFFSET_BYTE3 | (RT1308_DAC_SET << 4), 383*a87a6653SShuming Fan RT1308_DVOL_MUTE_L_EN_SFT, 1, 1); 384*a87a6653SShuming Fan 385*a87a6653SShuming Fan static const struct snd_kcontrol_new rt1308_sto_dac_r = 386*a87a6653SShuming Fan SOC_DAPM_SINGLE_AUTODISABLE("Switch", 387*a87a6653SShuming Fan RT1308_SDW_OFFSET_BYTE3 | (RT1308_DAC_SET << 4), 388*a87a6653SShuming Fan RT1308_DVOL_MUTE_R_EN_SFT, 1, 1); 389*a87a6653SShuming Fan 390*a87a6653SShuming Fan static const struct snd_soc_dapm_widget rt1308_dapm_widgets[] = { 391*a87a6653SShuming Fan /* Audio Interface */ 392*a87a6653SShuming Fan SND_SOC_DAPM_AIF_IN("AIF1RX", "DP1 Playback", 0, SND_SOC_NOPM, 0, 0), 393*a87a6653SShuming Fan 394*a87a6653SShuming Fan /* Supply Widgets */ 395*a87a6653SShuming Fan SND_SOC_DAPM_SUPPLY("MBIAS20U", 396*a87a6653SShuming Fan RT1308_SDW_OFFSET | (RT1308_POWER << 4), 7, 0, NULL, 0), 397*a87a6653SShuming Fan SND_SOC_DAPM_SUPPLY("ALDO", 398*a87a6653SShuming Fan RT1308_SDW_OFFSET | (RT1308_POWER << 4), 6, 0, NULL, 0), 399*a87a6653SShuming Fan SND_SOC_DAPM_SUPPLY("DBG", 400*a87a6653SShuming Fan RT1308_SDW_OFFSET | (RT1308_POWER << 4), 5, 0, NULL, 0), 401*a87a6653SShuming Fan SND_SOC_DAPM_SUPPLY("DACL", 402*a87a6653SShuming Fan RT1308_SDW_OFFSET | (RT1308_POWER << 4), 4, 0, NULL, 0), 403*a87a6653SShuming Fan SND_SOC_DAPM_SUPPLY("CLK25M", 404*a87a6653SShuming Fan RT1308_SDW_OFFSET | (RT1308_POWER << 4), 2, 0, NULL, 0), 405*a87a6653SShuming Fan SND_SOC_DAPM_SUPPLY("ADC_R", 406*a87a6653SShuming Fan RT1308_SDW_OFFSET | (RT1308_POWER << 4), 1, 0, NULL, 0), 407*a87a6653SShuming Fan SND_SOC_DAPM_SUPPLY("ADC_L", 408*a87a6653SShuming Fan RT1308_SDW_OFFSET | (RT1308_POWER << 4), 0, 0, NULL, 0), 409*a87a6653SShuming Fan SND_SOC_DAPM_SUPPLY("DAC Power", 410*a87a6653SShuming Fan RT1308_SDW_OFFSET | (RT1308_POWER << 4), 3, 0, NULL, 0), 411*a87a6653SShuming Fan 412*a87a6653SShuming Fan SND_SOC_DAPM_SUPPLY("DLDO", 413*a87a6653SShuming Fan RT1308_SDW_OFFSET_BYTE1 | (RT1308_POWER << 4), 5, 0, NULL, 0), 414*a87a6653SShuming Fan SND_SOC_DAPM_SUPPLY("VREF", 415*a87a6653SShuming Fan RT1308_SDW_OFFSET_BYTE1 | (RT1308_POWER << 4), 4, 0, NULL, 0), 416*a87a6653SShuming Fan SND_SOC_DAPM_SUPPLY("MIXER_R", 417*a87a6653SShuming Fan RT1308_SDW_OFFSET_BYTE1 | (RT1308_POWER << 4), 2, 0, NULL, 0), 418*a87a6653SShuming Fan SND_SOC_DAPM_SUPPLY("MIXER_L", 419*a87a6653SShuming Fan RT1308_SDW_OFFSET_BYTE1 | (RT1308_POWER << 4), 1, 0, NULL, 0), 420*a87a6653SShuming Fan SND_SOC_DAPM_SUPPLY("MBIAS4U", 421*a87a6653SShuming Fan RT1308_SDW_OFFSET_BYTE1 | (RT1308_POWER << 4), 0, 0, NULL, 0), 422*a87a6653SShuming Fan 423*a87a6653SShuming Fan SND_SOC_DAPM_SUPPLY("PLL2_LDO", 424*a87a6653SShuming Fan RT1308_SDW_OFFSET_BYTE2 | (RT1308_POWER << 4), 4, 0, NULL, 0), 425*a87a6653SShuming Fan SND_SOC_DAPM_SUPPLY("PLL2B", 426*a87a6653SShuming Fan RT1308_SDW_OFFSET_BYTE2 | (RT1308_POWER << 4), 3, 0, NULL, 0), 427*a87a6653SShuming Fan SND_SOC_DAPM_SUPPLY("PLL2F", 428*a87a6653SShuming Fan RT1308_SDW_OFFSET_BYTE2 | (RT1308_POWER << 4), 2, 0, NULL, 0), 429*a87a6653SShuming Fan SND_SOC_DAPM_SUPPLY("PLL2F2", 430*a87a6653SShuming Fan RT1308_SDW_OFFSET_BYTE2 | (RT1308_POWER << 4), 1, 0, NULL, 0), 431*a87a6653SShuming Fan SND_SOC_DAPM_SUPPLY("PLL2B2", 432*a87a6653SShuming Fan RT1308_SDW_OFFSET_BYTE2 | (RT1308_POWER << 4), 0, 0, NULL, 0), 433*a87a6653SShuming Fan 434*a87a6653SShuming Fan /* Digital Interface */ 435*a87a6653SShuming Fan SND_SOC_DAPM_DAC("DAC", NULL, SND_SOC_NOPM, 0, 0), 436*a87a6653SShuming Fan SND_SOC_DAPM_SWITCH("DAC L", SND_SOC_NOPM, 0, 0, &rt1308_sto_dac_l), 437*a87a6653SShuming Fan SND_SOC_DAPM_SWITCH("DAC R", SND_SOC_NOPM, 0, 0, &rt1308_sto_dac_r), 438*a87a6653SShuming Fan 439*a87a6653SShuming Fan /* Output Lines */ 440*a87a6653SShuming Fan SND_SOC_DAPM_PGA_E("CLASS D", SND_SOC_NOPM, 0, 0, NULL, 0, 441*a87a6653SShuming Fan rt1308_classd_event, 442*a87a6653SShuming Fan SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), 443*a87a6653SShuming Fan SND_SOC_DAPM_OUTPUT("SPOL"), 444*a87a6653SShuming Fan SND_SOC_DAPM_OUTPUT("SPOR"), 445*a87a6653SShuming Fan }; 446*a87a6653SShuming Fan 447*a87a6653SShuming Fan static const struct snd_soc_dapm_route rt1308_dapm_routes[] = { 448*a87a6653SShuming Fan 449*a87a6653SShuming Fan { "DAC", NULL, "AIF1RX" }, 450*a87a6653SShuming Fan 451*a87a6653SShuming Fan { "DAC", NULL, "MBIAS20U" }, 452*a87a6653SShuming Fan { "DAC", NULL, "ALDO" }, 453*a87a6653SShuming Fan { "DAC", NULL, "DBG" }, 454*a87a6653SShuming Fan { "DAC", NULL, "DACL" }, 455*a87a6653SShuming Fan { "DAC", NULL, "CLK25M" }, 456*a87a6653SShuming Fan { "DAC", NULL, "ADC_R" }, 457*a87a6653SShuming Fan { "DAC", NULL, "ADC_L" }, 458*a87a6653SShuming Fan { "DAC", NULL, "DLDO" }, 459*a87a6653SShuming Fan { "DAC", NULL, "VREF" }, 460*a87a6653SShuming Fan { "DAC", NULL, "MIXER_R" }, 461*a87a6653SShuming Fan { "DAC", NULL, "MIXER_L" }, 462*a87a6653SShuming Fan { "DAC", NULL, "MBIAS4U" }, 463*a87a6653SShuming Fan { "DAC", NULL, "PLL2_LDO" }, 464*a87a6653SShuming Fan { "DAC", NULL, "PLL2B" }, 465*a87a6653SShuming Fan { "DAC", NULL, "PLL2F" }, 466*a87a6653SShuming Fan { "DAC", NULL, "PLL2F2" }, 467*a87a6653SShuming Fan { "DAC", NULL, "PLL2B2" }, 468*a87a6653SShuming Fan 469*a87a6653SShuming Fan { "DAC L", "Switch", "DAC" }, 470*a87a6653SShuming Fan { "DAC R", "Switch", "DAC" }, 471*a87a6653SShuming Fan { "DAC L", NULL, "DAC Power" }, 472*a87a6653SShuming Fan { "DAC R", NULL, "DAC Power" }, 473*a87a6653SShuming Fan 474*a87a6653SShuming Fan { "CLASS D", NULL, "DAC L" }, 475*a87a6653SShuming Fan { "CLASS D", NULL, "DAC R" }, 476*a87a6653SShuming Fan { "SPOL", NULL, "CLASS D" }, 477*a87a6653SShuming Fan { "SPOR", NULL, "CLASS D" }, 478*a87a6653SShuming Fan }; 479*a87a6653SShuming Fan 480*a87a6653SShuming Fan static int rt1308_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream, 481*a87a6653SShuming Fan int direction) 482*a87a6653SShuming Fan { 483*a87a6653SShuming Fan struct sdw_stream_data *stream; 484*a87a6653SShuming Fan 485*a87a6653SShuming Fan stream = kzalloc(sizeof(*stream), GFP_KERNEL); 486*a87a6653SShuming Fan if (!stream) 487*a87a6653SShuming Fan return -ENOMEM; 488*a87a6653SShuming Fan 489*a87a6653SShuming Fan stream->sdw_stream = (struct sdw_stream_runtime *)sdw_stream; 490*a87a6653SShuming Fan 491*a87a6653SShuming Fan /* Use tx_mask or rx_mask to configure stream tag and set dma_data */ 492*a87a6653SShuming Fan if (direction == SNDRV_PCM_STREAM_PLAYBACK) 493*a87a6653SShuming Fan dai->playback_dma_data = stream; 494*a87a6653SShuming Fan else 495*a87a6653SShuming Fan dai->capture_dma_data = stream; 496*a87a6653SShuming Fan 497*a87a6653SShuming Fan return 0; 498*a87a6653SShuming Fan } 499*a87a6653SShuming Fan 500*a87a6653SShuming Fan static void rt1308_sdw_shutdown(struct snd_pcm_substream *substream, 501*a87a6653SShuming Fan struct snd_soc_dai *dai) 502*a87a6653SShuming Fan { 503*a87a6653SShuming Fan struct sdw_stream_data *stream; 504*a87a6653SShuming Fan 505*a87a6653SShuming Fan stream = snd_soc_dai_get_dma_data(dai, substream); 506*a87a6653SShuming Fan snd_soc_dai_set_dma_data(dai, substream, NULL); 507*a87a6653SShuming Fan kfree(stream); 508*a87a6653SShuming Fan } 509*a87a6653SShuming Fan 510*a87a6653SShuming Fan static int rt1308_sdw_hw_params(struct snd_pcm_substream *substream, 511*a87a6653SShuming Fan struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) 512*a87a6653SShuming Fan { 513*a87a6653SShuming Fan struct snd_soc_component *component = dai->component; 514*a87a6653SShuming Fan struct rt1308_sdw_priv *rt1308 = 515*a87a6653SShuming Fan snd_soc_component_get_drvdata(component); 516*a87a6653SShuming Fan struct sdw_stream_config stream_config; 517*a87a6653SShuming Fan struct sdw_port_config port_config; 518*a87a6653SShuming Fan enum sdw_data_direction direction; 519*a87a6653SShuming Fan struct sdw_stream_data *stream; 520*a87a6653SShuming Fan int retval, port, num_channels; 521*a87a6653SShuming Fan 522*a87a6653SShuming Fan dev_dbg(dai->dev, "%s %s", __func__, dai->name); 523*a87a6653SShuming Fan stream = snd_soc_dai_get_dma_data(dai, substream); 524*a87a6653SShuming Fan 525*a87a6653SShuming Fan if (!stream) 526*a87a6653SShuming Fan return -EINVAL; 527*a87a6653SShuming Fan 528*a87a6653SShuming Fan if (!rt1308->sdw_slave) 529*a87a6653SShuming Fan return -EINVAL; 530*a87a6653SShuming Fan 531*a87a6653SShuming Fan /* SoundWire specific configuration */ 532*a87a6653SShuming Fan /* port 1 for playback */ 533*a87a6653SShuming Fan if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 534*a87a6653SShuming Fan direction = SDW_DATA_DIR_RX; 535*a87a6653SShuming Fan port = 1; 536*a87a6653SShuming Fan } else { 537*a87a6653SShuming Fan return -EINVAL; 538*a87a6653SShuming Fan } 539*a87a6653SShuming Fan 540*a87a6653SShuming Fan stream_config.frame_rate = params_rate(params); 541*a87a6653SShuming Fan stream_config.ch_count = params_channels(params); 542*a87a6653SShuming Fan stream_config.bps = snd_pcm_format_width(params_format(params)); 543*a87a6653SShuming Fan stream_config.direction = direction; 544*a87a6653SShuming Fan 545*a87a6653SShuming Fan num_channels = params_channels(params); 546*a87a6653SShuming Fan port_config.ch_mask = (1 << (num_channels)) - 1; 547*a87a6653SShuming Fan port_config.num = port; 548*a87a6653SShuming Fan 549*a87a6653SShuming Fan retval = sdw_stream_add_slave(rt1308->sdw_slave, &stream_config, 550*a87a6653SShuming Fan &port_config, 1, stream->sdw_stream); 551*a87a6653SShuming Fan if (retval) { 552*a87a6653SShuming Fan dev_err(dai->dev, "Unable to configure port\n"); 553*a87a6653SShuming Fan return retval; 554*a87a6653SShuming Fan } 555*a87a6653SShuming Fan 556*a87a6653SShuming Fan return retval; 557*a87a6653SShuming Fan } 558*a87a6653SShuming Fan 559*a87a6653SShuming Fan static int rt1308_sdw_pcm_hw_free(struct snd_pcm_substream *substream, 560*a87a6653SShuming Fan struct snd_soc_dai *dai) 561*a87a6653SShuming Fan { 562*a87a6653SShuming Fan struct snd_soc_component *component = dai->component; 563*a87a6653SShuming Fan struct rt1308_sdw_priv *rt1308 = 564*a87a6653SShuming Fan snd_soc_component_get_drvdata(component); 565*a87a6653SShuming Fan struct sdw_stream_data *stream = 566*a87a6653SShuming Fan snd_soc_dai_get_dma_data(dai, substream); 567*a87a6653SShuming Fan 568*a87a6653SShuming Fan if (!rt1308->sdw_slave) 569*a87a6653SShuming Fan return -EINVAL; 570*a87a6653SShuming Fan 571*a87a6653SShuming Fan sdw_stream_remove_slave(rt1308->sdw_slave, stream->sdw_stream); 572*a87a6653SShuming Fan return 0; 573*a87a6653SShuming Fan } 574*a87a6653SShuming Fan 575*a87a6653SShuming Fan /* 576*a87a6653SShuming Fan * slave_ops: callbacks for get_clock_stop_mode, clock_stop and 577*a87a6653SShuming Fan * port_prep are not defined for now 578*a87a6653SShuming Fan */ 579*a87a6653SShuming Fan static struct sdw_slave_ops rt1308_slave_ops = { 580*a87a6653SShuming Fan .read_prop = rt1308_read_prop, 581*a87a6653SShuming Fan .interrupt_callback = rt1308_interrupt_callback, 582*a87a6653SShuming Fan .update_status = rt1308_update_status, 583*a87a6653SShuming Fan .bus_config = rt1308_bus_config, 584*a87a6653SShuming Fan }; 585*a87a6653SShuming Fan 586*a87a6653SShuming Fan static const struct snd_soc_component_driver soc_component_sdw_rt1308 = { 587*a87a6653SShuming Fan .controls = rt1308_snd_controls, 588*a87a6653SShuming Fan .num_controls = ARRAY_SIZE(rt1308_snd_controls), 589*a87a6653SShuming Fan .dapm_widgets = rt1308_dapm_widgets, 590*a87a6653SShuming Fan .num_dapm_widgets = ARRAY_SIZE(rt1308_dapm_widgets), 591*a87a6653SShuming Fan .dapm_routes = rt1308_dapm_routes, 592*a87a6653SShuming Fan .num_dapm_routes = ARRAY_SIZE(rt1308_dapm_routes), 593*a87a6653SShuming Fan }; 594*a87a6653SShuming Fan 595*a87a6653SShuming Fan static const struct snd_soc_dai_ops rt1308_aif_dai_ops = { 596*a87a6653SShuming Fan .hw_params = rt1308_sdw_hw_params, 597*a87a6653SShuming Fan .hw_free = rt1308_sdw_pcm_hw_free, 598*a87a6653SShuming Fan .set_sdw_stream = rt1308_set_sdw_stream, 599*a87a6653SShuming Fan .shutdown = rt1308_sdw_shutdown, 600*a87a6653SShuming Fan }; 601*a87a6653SShuming Fan 602*a87a6653SShuming Fan #define RT1308_STEREO_RATES SNDRV_PCM_RATE_48000 603*a87a6653SShuming Fan #define RT1308_FORMATS (SNDRV_PCM_FMTBIT_S8 | \ 604*a87a6653SShuming Fan SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S16_LE | \ 605*a87a6653SShuming Fan SNDRV_PCM_FMTBIT_S24_LE) 606*a87a6653SShuming Fan 607*a87a6653SShuming Fan static struct snd_soc_dai_driver rt1308_sdw_dai[] = { 608*a87a6653SShuming Fan { 609*a87a6653SShuming Fan .name = "rt1308-aif", 610*a87a6653SShuming Fan .playback = { 611*a87a6653SShuming Fan .stream_name = "DP1 Playback", 612*a87a6653SShuming Fan .channels_min = 1, 613*a87a6653SShuming Fan .channels_max = 2, 614*a87a6653SShuming Fan .rates = RT1308_STEREO_RATES, 615*a87a6653SShuming Fan .formats = RT1308_FORMATS, 616*a87a6653SShuming Fan }, 617*a87a6653SShuming Fan .ops = &rt1308_aif_dai_ops, 618*a87a6653SShuming Fan }, 619*a87a6653SShuming Fan }; 620*a87a6653SShuming Fan 621*a87a6653SShuming Fan static int rt1308_sdw_init(struct device *dev, struct regmap *regmap, 622*a87a6653SShuming Fan struct sdw_slave *slave) 623*a87a6653SShuming Fan { 624*a87a6653SShuming Fan struct rt1308_sdw_priv *rt1308; 625*a87a6653SShuming Fan int ret; 626*a87a6653SShuming Fan 627*a87a6653SShuming Fan rt1308 = devm_kzalloc(dev, sizeof(*rt1308), GFP_KERNEL); 628*a87a6653SShuming Fan if (!rt1308) 629*a87a6653SShuming Fan return -ENOMEM; 630*a87a6653SShuming Fan 631*a87a6653SShuming Fan dev_set_drvdata(dev, rt1308); 632*a87a6653SShuming Fan rt1308->sdw_slave = slave; 633*a87a6653SShuming Fan rt1308->regmap = regmap; 634*a87a6653SShuming Fan 635*a87a6653SShuming Fan /* 636*a87a6653SShuming Fan * Mark hw_init to false 637*a87a6653SShuming Fan * HW init will be performed when device reports present 638*a87a6653SShuming Fan */ 639*a87a6653SShuming Fan rt1308->hw_init = false; 640*a87a6653SShuming Fan rt1308->first_hw_init = false; 641*a87a6653SShuming Fan 642*a87a6653SShuming Fan ret = devm_snd_soc_register_component(dev, 643*a87a6653SShuming Fan &soc_component_sdw_rt1308, 644*a87a6653SShuming Fan rt1308_sdw_dai, 645*a87a6653SShuming Fan ARRAY_SIZE(rt1308_sdw_dai)); 646*a87a6653SShuming Fan 647*a87a6653SShuming Fan dev_dbg(&slave->dev, "%s\n", __func__); 648*a87a6653SShuming Fan 649*a87a6653SShuming Fan return ret; 650*a87a6653SShuming Fan } 651*a87a6653SShuming Fan 652*a87a6653SShuming Fan static int rt1308_sdw_probe(struct sdw_slave *slave, 653*a87a6653SShuming Fan const struct sdw_device_id *id) 654*a87a6653SShuming Fan { 655*a87a6653SShuming Fan struct regmap *regmap; 656*a87a6653SShuming Fan 657*a87a6653SShuming Fan /* Assign ops */ 658*a87a6653SShuming Fan slave->ops = &rt1308_slave_ops; 659*a87a6653SShuming Fan 660*a87a6653SShuming Fan /* Regmap Initialization */ 661*a87a6653SShuming Fan regmap = devm_regmap_init_sdw(slave, &rt1308_sdw_regmap); 662*a87a6653SShuming Fan if (!regmap) 663*a87a6653SShuming Fan return -EINVAL; 664*a87a6653SShuming Fan 665*a87a6653SShuming Fan rt1308_sdw_init(&slave->dev, regmap, slave); 666*a87a6653SShuming Fan 667*a87a6653SShuming Fan return 0; 668*a87a6653SShuming Fan } 669*a87a6653SShuming Fan 670*a87a6653SShuming Fan static const struct sdw_device_id rt1308_id[] = { 671*a87a6653SShuming Fan SDW_SLAVE_ENTRY(0x025d, 0x1308, 0), 672*a87a6653SShuming Fan {}, 673*a87a6653SShuming Fan }; 674*a87a6653SShuming Fan MODULE_DEVICE_TABLE(sdw, rt1308_id); 675*a87a6653SShuming Fan 676*a87a6653SShuming Fan static int rt1308_dev_suspend(struct device *dev) 677*a87a6653SShuming Fan { 678*a87a6653SShuming Fan struct rt1308_sdw_priv *rt1308 = dev_get_drvdata(dev); 679*a87a6653SShuming Fan 680*a87a6653SShuming Fan if (!rt1308->hw_init) 681*a87a6653SShuming Fan return 0; 682*a87a6653SShuming Fan 683*a87a6653SShuming Fan regcache_cache_only(rt1308->regmap, true); 684*a87a6653SShuming Fan 685*a87a6653SShuming Fan return 0; 686*a87a6653SShuming Fan } 687*a87a6653SShuming Fan 688*a87a6653SShuming Fan #define RT1308_PROBE_TIMEOUT 2000 689*a87a6653SShuming Fan 690*a87a6653SShuming Fan static int rt1308_dev_resume(struct device *dev) 691*a87a6653SShuming Fan { 692*a87a6653SShuming Fan struct sdw_slave *slave = dev_to_sdw_dev(dev); 693*a87a6653SShuming Fan struct rt1308_sdw_priv *rt1308 = dev_get_drvdata(dev); 694*a87a6653SShuming Fan unsigned long time; 695*a87a6653SShuming Fan 696*a87a6653SShuming Fan if (!rt1308->hw_init) 697*a87a6653SShuming Fan return 0; 698*a87a6653SShuming Fan 699*a87a6653SShuming Fan if (!slave->unattach_request) 700*a87a6653SShuming Fan goto regmap_sync; 701*a87a6653SShuming Fan 702*a87a6653SShuming Fan time = wait_for_completion_timeout(&slave->initialization_complete, 703*a87a6653SShuming Fan msecs_to_jiffies(RT1308_PROBE_TIMEOUT)); 704*a87a6653SShuming Fan if (!time) { 705*a87a6653SShuming Fan dev_err(&slave->dev, "Initialization not complete, timed out\n"); 706*a87a6653SShuming Fan return -ETIMEDOUT; 707*a87a6653SShuming Fan } 708*a87a6653SShuming Fan 709*a87a6653SShuming Fan regmap_sync: 710*a87a6653SShuming Fan slave->unattach_request = 0; 711*a87a6653SShuming Fan regcache_cache_only(rt1308->regmap, false); 712*a87a6653SShuming Fan regcache_sync_region(rt1308->regmap, 0xc000, 0xcfff); 713*a87a6653SShuming Fan 714*a87a6653SShuming Fan return 0; 715*a87a6653SShuming Fan } 716*a87a6653SShuming Fan 717*a87a6653SShuming Fan static const struct dev_pm_ops rt1308_pm = { 718*a87a6653SShuming Fan SET_SYSTEM_SLEEP_PM_OPS(rt1308_dev_suspend, rt1308_dev_resume) 719*a87a6653SShuming Fan SET_RUNTIME_PM_OPS(rt1308_dev_suspend, rt1308_dev_resume, NULL) 720*a87a6653SShuming Fan }; 721*a87a6653SShuming Fan 722*a87a6653SShuming Fan static struct sdw_driver rt1308_sdw_driver = { 723*a87a6653SShuming Fan .driver = { 724*a87a6653SShuming Fan .name = "rt1308", 725*a87a6653SShuming Fan .owner = THIS_MODULE, 726*a87a6653SShuming Fan .pm = &rt1308_pm, 727*a87a6653SShuming Fan }, 728*a87a6653SShuming Fan .probe = rt1308_sdw_probe, 729*a87a6653SShuming Fan .ops = &rt1308_slave_ops, 730*a87a6653SShuming Fan .id_table = rt1308_id, 731*a87a6653SShuming Fan }; 732*a87a6653SShuming Fan module_sdw_driver(rt1308_sdw_driver); 733*a87a6653SShuming Fan 734*a87a6653SShuming Fan MODULE_DESCRIPTION("ASoC RT1308 driver SDW"); 735*a87a6653SShuming Fan MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>"); 736*a87a6653SShuming Fan MODULE_LICENSE("GPL v2"); 737