// SPDX-License-Identifier: GPL-2.0-only // // rt715-sdca-sdw.c -- rt715 ALSA SoC audio driver // // Copyright(c) 2020 Realtek Semiconductor Corp. // // #include #include #include #include #include #include #include #include #include #include #include "rt715-sdca.h" #include "rt715-sdca-sdw.h" static bool rt715_sdca_readable_register(struct device *dev, unsigned int reg) { switch (reg) { case 0x201a ... 0x2027: case 0x2029 ... 0x202a: case 0x202d ... 0x2034: case 0x2200 ... 0x2204: case 0x2206 ... 0x2212: case 0x2230 ... 0x2239: case 0x2f5b: case SDW_SDCA_CTL(FUN_MIC_ARRAY, RT715_SDCA_SMPU_TRIG_ST_EN, RT715_SDCA_SMPU_TRIG_ST_CTRL, CH_00): return true; default: return false; } } static bool rt715_sdca_volatile_register(struct device *dev, unsigned int reg) { switch (reg) { case 0x201b: case 0x201c: case 0x201d: case 0x201f: case 0x2021: case 0x2023: case 0x2230: case 0x202d ... 0x202f: /* BRA */ case 0x2200 ... 0x2212: /* i2c debug */ case 0x2f07: case 0x2f1b ... 0x2f1e: case 0x2f30 ... 0x2f34: case 0x2f50 ... 0x2f51: case 0x2f53 ... 0x2f59: case 0x2f5c ... 0x2f5f: case SDW_SDCA_CTL(FUN_MIC_ARRAY, RT715_SDCA_SMPU_TRIG_ST_EN, RT715_SDCA_SMPU_TRIG_ST_CTRL, CH_00): /* VAD Searching status */ return true; default: return false; } } static bool rt715_sdca_mbq_readable_register(struct device *dev, unsigned int reg) { switch (reg) { case 0x2000000: case 0x200002b: case 0x2000036: case 0x2000037: case 0x2000039: case 0x2000044: case 0x6100000: return true; default: return false; } } static bool rt715_sdca_mbq_volatile_register(struct device *dev, unsigned int reg) { switch (reg) { case 0x2000000: return true; default: return false; } } static const struct regmap_config rt715_sdca_regmap = { .reg_bits = 32, .val_bits = 8, .readable_reg = rt715_sdca_readable_register, .volatile_reg = rt715_sdca_volatile_register, .max_register = 0x43ffffff, .reg_defaults = rt715_reg_defaults_sdca, .num_reg_defaults = ARRAY_SIZE(rt715_reg_defaults_sdca), .cache_type = REGCACHE_RBTREE, .use_single_read = true, .use_single_write = true, }; static const struct regmap_config rt715_sdca_mbq_regmap = { .name = "sdw-mbq", .reg_bits = 32, .val_bits = 16, .readable_reg = rt715_sdca_mbq_readable_register, .volatile_reg = rt715_sdca_mbq_volatile_register, .max_register = 0x43ffffff, .reg_defaults = rt715_mbq_reg_defaults_sdca, .num_reg_defaults = ARRAY_SIZE(rt715_mbq_reg_defaults_sdca), .cache_type = REGCACHE_RBTREE, .use_single_read = true, .use_single_write = true, }; static int rt715_sdca_update_status(struct sdw_slave *slave, enum sdw_slave_status status) { struct rt715_sdca_priv *rt715 = dev_get_drvdata(&slave->dev); /* Update the status */ rt715->status = status; /* * Perform initialization only if slave status is present and * hw_init flag is false */ if (rt715->hw_init || rt715->status != SDW_SLAVE_ATTACHED) return 0; /* perform I/O transfers required for Slave initialization */ return rt715_sdca_io_init(&slave->dev, slave); } static int rt715_sdca_read_prop(struct sdw_slave *slave) { struct sdw_slave_prop *prop = &slave->prop; int nval, i; u32 bit; unsigned long addr; struct sdw_dpn_prop *dpn; prop->paging_support = true; /* first we need to allocate memory for set bits in port lists */ prop->source_ports = 0x50;/* BITMAP: 01010000 */ prop->sink_ports = 0x0; /* BITMAP: 00000000 */ nval = hweight32(prop->source_ports); prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval, sizeof(*prop->src_dpn_prop), GFP_KERNEL); if (!prop->src_dpn_prop) return -ENOMEM; dpn = prop->src_dpn_prop; i = 0; addr = prop->source_ports; for_each_set_bit(bit, &addr, 32) { dpn[i].num = bit; dpn[i].simple_ch_prep_sm = true; dpn[i].ch_prep_timeout = 10; i++; } /* set the timeout values */ prop->clk_stop_timeout = 200; return 0; } static struct sdw_slave_ops rt715_sdca_slave_ops = { .read_prop = rt715_sdca_read_prop, .update_status = rt715_sdca_update_status, }; static int rt715_sdca_sdw_probe(struct sdw_slave *slave, const struct sdw_device_id *id) { struct regmap *mbq_regmap, *regmap; slave->ops = &rt715_sdca_slave_ops; /* Regmap Initialization */ mbq_regmap = devm_regmap_init_sdw_mbq(slave, &rt715_sdca_mbq_regmap); if (IS_ERR(mbq_regmap)) return PTR_ERR(mbq_regmap); regmap = devm_regmap_init_sdw(slave, &rt715_sdca_regmap); if (IS_ERR(regmap)) return PTR_ERR(regmap); return rt715_sdca_init(&slave->dev, mbq_regmap, regmap, slave); } static int rt715_sdca_sdw_remove(struct sdw_slave *slave) { struct rt715_sdca_priv *rt715 = dev_get_drvdata(&slave->dev); if (rt715->first_hw_init) pm_runtime_disable(&slave->dev); return 0; } static const struct sdw_device_id rt715_sdca_id[] = { SDW_SLAVE_ENTRY_EXT(0x025d, 0x715, 0x3, 0x1, 0), SDW_SLAVE_ENTRY_EXT(0x025d, 0x714, 0x3, 0x1, 0), {}, }; MODULE_DEVICE_TABLE(sdw, rt715_sdca_id); static int __maybe_unused rt715_dev_suspend(struct device *dev) { struct rt715_sdca_priv *rt715 = dev_get_drvdata(dev); if (!rt715->hw_init) return 0; regcache_cache_only(rt715->regmap, true); regcache_mark_dirty(rt715->regmap); regcache_cache_only(rt715->mbq_regmap, true); regcache_mark_dirty(rt715->mbq_regmap); return 0; } #define RT715_PROBE_TIMEOUT 5000 static int __maybe_unused rt715_dev_resume(struct device *dev) { struct sdw_slave *slave = dev_to_sdw_dev(dev); struct rt715_sdca_priv *rt715 = dev_get_drvdata(dev); unsigned long time; if (!rt715->first_hw_init) return 0; if (!slave->unattach_request) goto regmap_sync; time = wait_for_completion_timeout(&slave->enumeration_complete, msecs_to_jiffies(RT715_PROBE_TIMEOUT)); if (!time) { dev_err(&slave->dev, "Enumeration not complete, timed out\n"); return -ETIMEDOUT; } regmap_sync: slave->unattach_request = 0; regcache_cache_only(rt715->regmap, false); regcache_sync_region(rt715->regmap, SDW_SDCA_CTL(FUN_JACK_CODEC, RT715_SDCA_ST_EN, RT715_SDCA_ST_CTRL, CH_00), SDW_SDCA_CTL(FUN_MIC_ARRAY, RT715_SDCA_SMPU_TRIG_ST_EN, RT715_SDCA_SMPU_TRIG_ST_CTRL, CH_00)); regcache_cache_only(rt715->mbq_regmap, false); regcache_sync_region(rt715->mbq_regmap, 0x2000000, 0x61020ff); regcache_sync_region(rt715->mbq_regmap, SDW_SDCA_CTL(FUN_JACK_CODEC, RT715_SDCA_ST_EN, RT715_SDCA_ST_CTRL, CH_00), SDW_SDCA_CTL(FUN_MIC_ARRAY, RT715_SDCA_SMPU_TRIG_ST_EN, RT715_SDCA_SMPU_TRIG_ST_CTRL, CH_00)); return 0; } static const struct dev_pm_ops rt715_pm = { SET_SYSTEM_SLEEP_PM_OPS(rt715_dev_suspend, rt715_dev_resume) SET_RUNTIME_PM_OPS(rt715_dev_suspend, rt715_dev_resume, NULL) }; static struct sdw_driver rt715_sdw_driver = { .driver = { .name = "rt715-sdca", .owner = THIS_MODULE, .pm = &rt715_pm, }, .probe = rt715_sdca_sdw_probe, .remove = rt715_sdca_sdw_remove, .ops = &rt715_sdca_slave_ops, .id_table = rt715_sdca_id, }; module_sdw_driver(rt715_sdw_driver); MODULE_DESCRIPTION("ASoC RT715 driver SDW SDCA"); MODULE_AUTHOR("Jack Yu "); MODULE_LICENSE("GPL v2");