/** * wm8400_reset_codec_reg_cache - Reset cached codec registers to * their default values. */ void wm8400_reset_codec_reg_cache(struct wm8400 *wm8400) { regmap_reinit_cache(wm8400->regmap, &wm8400_regmap_config); }
static __devinit int wm8994_device_init(struct wm8994 *wm8994, int irq) { struct wm8994_pdata *pdata = wm8994->dev->platform_data; struct regmap_config *regmap_config; const struct reg_default *regmap_patch = NULL; const char *devname; int ret, i, patch_regs; int pulls = 0; dev_set_drvdata(wm8994->dev, wm8994); ret = mfd_add_devices(wm8994->dev, -1, wm8994_regulator_devs, ARRAY_SIZE(wm8994_regulator_devs), NULL, 0); if (ret != 0) { dev_err(wm8994->dev, "Failed to add children: %d\n", ret); goto err; } switch (wm8994->type) { case WM1811: wm8994->num_supplies = ARRAY_SIZE(wm1811_main_supplies); break; case WM8994: wm8994->num_supplies = ARRAY_SIZE(wm8994_main_supplies); break; case WM8958: wm8994->num_supplies = ARRAY_SIZE(wm8958_main_supplies); break; default: BUG(); goto err; } wm8994->supplies = devm_kzalloc(wm8994->dev, sizeof(struct regulator_bulk_data) * wm8994->num_supplies, GFP_KERNEL); if (!wm8994->supplies) { ret = -ENOMEM; goto err; } switch (wm8994->type) { case WM1811: for (i = 0; i < ARRAY_SIZE(wm1811_main_supplies); i++) wm8994->supplies[i].supply = wm1811_main_supplies[i]; break; case WM8994: for (i = 0; i < ARRAY_SIZE(wm8994_main_supplies); i++) wm8994->supplies[i].supply = wm8994_main_supplies[i]; break; case WM8958: for (i = 0; i < ARRAY_SIZE(wm8958_main_supplies); i++) wm8994->supplies[i].supply = wm8958_main_supplies[i]; break; default: BUG(); goto err; } ret = regulator_bulk_get(wm8994->dev, wm8994->num_supplies, wm8994->supplies); if (ret != 0) { dev_err(wm8994->dev, "Failed to get supplies: %d\n", ret); goto err; } ret = regulator_bulk_enable(wm8994->num_supplies, wm8994->supplies); if (ret != 0) { dev_err(wm8994->dev, "Failed to enable supplies: %d\n", ret); goto err_get; } ret = wm8994_reg_read(wm8994, WM8994_SOFTWARE_RESET); if (ret < 0) { dev_err(wm8994->dev, "Failed to read ID register\n"); goto err_enable; } switch (ret) { case 0x1811: devname = "WM1811"; if (wm8994->type != WM1811) dev_warn(wm8994->dev, "Device registered as type %d\n", wm8994->type); wm8994->type = WM1811; break; case 0x8994: devname = "WM8994"; if (wm8994->type != WM8994) dev_warn(wm8994->dev, "Device registered as type %d\n", wm8994->type); wm8994->type = WM8994; break; case 0x8958: devname = "WM8958"; if (wm8994->type != WM8958) dev_warn(wm8994->dev, "Device registered as type %d\n", wm8994->type); wm8994->type = WM8958; break; default: dev_err(wm8994->dev, "Device is not a WM8994, ID is %x\n", ret); ret = -EINVAL; goto err_enable; } ret = wm8994_reg_read(wm8994, WM8994_CHIP_REVISION); if (ret < 0) { dev_err(wm8994->dev, "Failed to read revision register: %d\n", ret); goto err_enable; } wm8994->revision = ret; switch (wm8994->type) { case WM8994: switch (wm8994->revision) { case 0: case 1: dev_warn(wm8994->dev, "revision %c not fully supported\n", 'A' + wm8994->revision); break; case 2: case 3: regmap_patch = wm8994_revc_patch; patch_regs = ARRAY_SIZE(wm8994_revc_patch); break; default: break; } break; case WM8958: switch (wm8994->revision) { case 0: regmap_patch = wm8958_reva_patch; patch_regs = ARRAY_SIZE(wm8958_reva_patch); break; default: break; } break; case WM1811: if (wm8994->revision > 1) wm8994->revision++; switch (wm8994->revision) { case 0: case 1: case 2: case 3: case 4: regmap_patch = wm1811_reva_patch; patch_regs = ARRAY_SIZE(wm1811_reva_patch); break; default: break; } break; default: break; } dev_info(wm8994->dev, "%s revision %c\n", devname, 'A' + wm8994->revision); switch (wm8994->type) { case WM1811: regmap_config = &wm1811_regmap_config; break; case WM8994: regmap_config = &wm8994_regmap_config; break; case WM8958: regmap_config = &wm8958_regmap_config; break; default: dev_err(wm8994->dev, "Unknown device type %d\n", wm8994->type); return -EINVAL; } ret = regmap_reinit_cache(wm8994->regmap, regmap_config); if (ret != 0) { dev_err(wm8994->dev, "Failed to reinit register cache: %d\n", ret); return ret; } if (regmap_patch) { ret = regmap_register_patch(wm8994->regmap, regmap_patch, patch_regs); if (ret != 0) { dev_err(wm8994->dev, "Failed to register patch: %d\n", ret); goto err; } } if (pdata) { wm8994->irq_base = pdata->irq_base; wm8994->gpio_base = pdata->gpio_base; for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) { if (pdata->gpio_defaults[i]) { wm8994_set_bits(wm8994, WM8994_GPIO_1 + i, 0xffff, pdata->gpio_defaults[i]); } } wm8994->ldo_ena_always_driven = pdata->ldo_ena_always_driven; if (pdata->spkmode_pu) pulls |= WM8994_SPKMODE_PU; } wm8994_set_bits(wm8994, WM8994_PULL_CONTROL_2, WM8994_LDO1ENA_PD | WM8994_LDO2ENA_PD | WM8994_SPKMODE_PU | WM8994_CSNADDR_PD, pulls); for (i = 0; i < WM8994_NUM_LDO_REGS; i++) { if (wm8994_ldo_in_use(pdata, i)) wm8994_set_bits(wm8994, WM8994_LDO_1 + i, WM8994_LDO1_DISCH, WM8994_LDO1_DISCH); else wm8994_set_bits(wm8994, WM8994_LDO_1 + i, WM8994_LDO1_DISCH, 0); } wm8994_irq_init(wm8994); ret = mfd_add_devices(wm8994->dev, -1, wm8994_devs, ARRAY_SIZE(wm8994_devs), NULL, 0); if (ret != 0) { dev_err(wm8994->dev, "Failed to add children: %d\n", ret); goto err_irq; } pm_runtime_enable(wm8994->dev); pm_runtime_idle(wm8994->dev); return 0; err_irq: wm8994_irq_exit(wm8994); err_enable: regulator_bulk_disable(wm8994->num_supplies, wm8994->supplies); err_get: regulator_bulk_free(wm8994->num_supplies, wm8994->supplies); err: mfd_remove_devices(wm8994->dev); return ret; }
/* * Instantiate the generic non-control parts of the device. */ static int wm8994_device_init(struct wm8994 *wm8994, int irq) { struct wm8994_pdata *pdata; struct regmap_config *regmap_config; const struct reg_default *regmap_patch = NULL; const char *devname; int ret, i, patch_regs = 0; int pulls = 0; if (dev_get_platdata(wm8994->dev)) { pdata = dev_get_platdata(wm8994->dev); wm8994->pdata = *pdata; } pdata = &wm8994->pdata; ret = wm8994_set_pdata_from_of(wm8994); if (ret != 0) return ret; dev_set_drvdata(wm8994->dev, wm8994); /* Add the on-chip regulators first for bootstrapping */ ret = mfd_add_devices(wm8994->dev, -1, wm8994_regulator_devs, ARRAY_SIZE(wm8994_regulator_devs), NULL, 0, NULL); if (ret != 0) { dev_err(wm8994->dev, "Failed to add children: %d\n", ret); goto err; } switch (wm8994->type) { case WM1811: wm8994->num_supplies = ARRAY_SIZE(wm1811_main_supplies); break; case WM8994: wm8994->num_supplies = ARRAY_SIZE(wm8994_main_supplies); break; case WM8958: wm8994->num_supplies = ARRAY_SIZE(wm8958_main_supplies); break; default: BUG(); goto err; } wm8994->supplies = devm_kzalloc(wm8994->dev, sizeof(struct regulator_bulk_data) * wm8994->num_supplies, GFP_KERNEL); if (!wm8994->supplies) { ret = -ENOMEM; goto err; } switch (wm8994->type) { case WM1811: for (i = 0; i < ARRAY_SIZE(wm1811_main_supplies); i++) wm8994->supplies[i].supply = wm1811_main_supplies[i]; break; case WM8994: for (i = 0; i < ARRAY_SIZE(wm8994_main_supplies); i++) wm8994->supplies[i].supply = wm8994_main_supplies[i]; break; case WM8958: for (i = 0; i < ARRAY_SIZE(wm8958_main_supplies); i++) wm8994->supplies[i].supply = wm8958_main_supplies[i]; break; default: BUG(); goto err; } ret = devm_regulator_bulk_get(wm8994->dev, wm8994->num_supplies, wm8994->supplies); if (ret != 0) { dev_err(wm8994->dev, "Failed to get supplies: %d\n", ret); goto err; } ret = regulator_bulk_enable(wm8994->num_supplies, wm8994->supplies); if (ret != 0) { dev_err(wm8994->dev, "Failed to enable supplies: %d\n", ret); goto err; } ret = wm8994_reg_read(wm8994, WM8994_SOFTWARE_RESET); if (ret < 0) { dev_err(wm8994->dev, "Failed to read ID register\n"); goto err_enable; } switch (ret) { case 0x1811: devname = "WM1811"; if (wm8994->type != WM1811) dev_warn(wm8994->dev, "Device registered as type %d\n", wm8994->type); wm8994->type = WM1811; break; case 0x8994: devname = "WM8994"; if (wm8994->type != WM8994) dev_warn(wm8994->dev, "Device registered as type %d\n", wm8994->type); wm8994->type = WM8994; break; case 0x8958: devname = "WM8958"; if (wm8994->type != WM8958) dev_warn(wm8994->dev, "Device registered as type %d\n", wm8994->type); wm8994->type = WM8958; break; default: dev_err(wm8994->dev, "Device is not a WM8994, ID is %x\n", ret); ret = -EINVAL; goto err_enable; } ret = wm8994_reg_read(wm8994, WM8994_CHIP_REVISION); if (ret < 0) { dev_err(wm8994->dev, "Failed to read revision register: %d\n", ret); goto err_enable; } wm8994->revision = ret & WM8994_CHIP_REV_MASK; wm8994->cust_id = (ret & WM8994_CUST_ID_MASK) >> WM8994_CUST_ID_SHIFT; switch (wm8994->type) { case WM8994: switch (wm8994->revision) { case 0: case 1: dev_warn(wm8994->dev, "revision %c not fully supported\n", 'A' + wm8994->revision); break; case 2: case 3: default: regmap_patch = wm8994_revc_patch; patch_regs = ARRAY_SIZE(wm8994_revc_patch); break; } break; case WM8958: switch (wm8994->revision) { case 0: regmap_patch = wm8958_reva_patch; patch_regs = ARRAY_SIZE(wm8958_reva_patch); break; default: break; } break; case WM1811: /* Revision C did not change the relevant layer */ if (wm8994->revision > 1) wm8994->revision++; regmap_patch = wm1811_reva_patch; patch_regs = ARRAY_SIZE(wm1811_reva_patch); break; default: break; } dev_info(wm8994->dev, "%s revision %c CUST_ID %02x\n", devname, 'A' + wm8994->revision, wm8994->cust_id); switch (wm8994->type) { case WM1811: regmap_config = &wm1811_regmap_config; break; case WM8994: regmap_config = &wm8994_regmap_config; break; case WM8958: regmap_config = &wm8958_regmap_config; break; default: dev_err(wm8994->dev, "Unknown device type %d\n", wm8994->type); return -EINVAL; } ret = regmap_reinit_cache(wm8994->regmap, regmap_config); if (ret != 0) { dev_err(wm8994->dev, "Failed to reinit register cache: %d\n", ret); return ret; } /* Explicitly put the device into reset in case regulators * don't get disabled in order to ensure we know the device * state. */ ret = wm8994_reg_write(wm8994, WM8994_SOFTWARE_RESET, wm8994_reg_read(wm8994, WM8994_SOFTWARE_RESET)); if (ret != 0) { dev_err(wm8994->dev, "Failed to reset device: %d\n", ret); return ret; } if (regmap_patch) { ret = regmap_register_patch(wm8994->regmap, regmap_patch, patch_regs); if (ret != 0) { dev_err(wm8994->dev, "Failed to register patch: %d\n", ret); goto err; } } wm8994->irq_base = pdata->irq_base; wm8994->gpio_base = pdata->gpio_base; /* GPIO configuration is only applied if it's non-zero */ for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) { if (pdata->gpio_defaults[i]) { wm8994_set_bits(wm8994, WM8994_GPIO_1 + i, 0xffff, pdata->gpio_defaults[i]); } } wm8994->ldo_ena_always_driven = pdata->ldo_ena_always_driven; if (pdata->spkmode_pu) pulls |= WM8994_SPKMODE_PU; /* Disable unneeded pulls */ wm8994_set_bits(wm8994, WM8994_PULL_CONTROL_2, WM8994_LDO1ENA_PD | WM8994_LDO2ENA_PD | WM8994_SPKMODE_PU | WM8994_CSNADDR_PD, pulls); /* In some system designs where the regulators are not in use, * we can achieve a small reduction in leakage currents by * floating LDO outputs. This bit makes no difference if the * LDOs are enabled, it only affects cases where the LDOs were * in operation and are then disabled. */ for (i = 0; i < WM8994_NUM_LDO_REGS; i++) { if (wm8994_ldo_in_use(pdata, i)) wm8994_set_bits(wm8994, WM8994_LDO_1 + i, WM8994_LDO1_DISCH, WM8994_LDO1_DISCH); else wm8994_set_bits(wm8994, WM8994_LDO_1 + i, WM8994_LDO1_DISCH, 0); } wm8994_irq_init(wm8994); ret = mfd_add_devices(wm8994->dev, -1, wm8994_devs, ARRAY_SIZE(wm8994_devs), NULL, 0, NULL); if (ret != 0) { dev_err(wm8994->dev, "Failed to add children: %d\n", ret); goto err_irq; } pm_runtime_enable(wm8994->dev); pm_runtime_idle(wm8994->dev); return 0; err_irq: wm8994_irq_exit(wm8994); err_enable: regulator_bulk_disable(wm8994->num_supplies, wm8994->supplies); err: mfd_remove_devices(wm8994->dev); return ret; }
static int mt8183_afe_pcm_dev_probe(struct platform_device *pdev) { struct mtk_base_afe *afe; struct mt8183_afe_private *afe_priv; struct device *dev; int i, irq_id, ret; afe = devm_kzalloc(&pdev->dev, sizeof(*afe), GFP_KERNEL); if (!afe) return -ENOMEM; platform_set_drvdata(pdev, afe); afe->platform_priv = devm_kzalloc(&pdev->dev, sizeof(*afe_priv), GFP_KERNEL); if (!afe->platform_priv) return -ENOMEM; afe_priv = afe->platform_priv; afe->dev = &pdev->dev; dev = afe->dev; /* initial audio related clock */ ret = mt8183_init_clock(afe); if (ret) { dev_err(dev, "init clock error\n"); return ret; } pm_runtime_enable(dev); /* regmap init */ afe->regmap = syscon_node_to_regmap(dev->parent->of_node); if (IS_ERR(afe->regmap)) { dev_err(dev, "could not get regmap from parent\n"); return PTR_ERR(afe->regmap); } ret = regmap_attach_dev(dev, afe->regmap, &mt8183_afe_regmap_config); if (ret) { dev_warn(dev, "regmap_attach_dev fail, ret %d\n", ret); return ret; } /* enable clock for regcache get default value from hw */ afe_priv->pm_runtime_bypass_reg_ctl = true; pm_runtime_get_sync(&pdev->dev); ret = regmap_reinit_cache(afe->regmap, &mt8183_afe_regmap_config); if (ret) { dev_err(dev, "regmap_reinit_cache fail, ret %d\n", ret); return ret; } pm_runtime_put_sync(&pdev->dev); afe_priv->pm_runtime_bypass_reg_ctl = false; regcache_cache_only(afe->regmap, true); regcache_mark_dirty(afe->regmap); pm_runtime_get_sync(&pdev->dev); /* init memif */ afe->memif_size = MT8183_MEMIF_NUM; afe->memif = devm_kcalloc(dev, afe->memif_size, sizeof(*afe->memif), GFP_KERNEL); if (!afe->memif) return -ENOMEM; for (i = 0; i < afe->memif_size; i++) { afe->memif[i].data = &memif_data[i]; afe->memif[i].irq_usage = -1; } afe->memif[MT8183_MEMIF_HDMI].irq_usage = MT8183_IRQ_8; afe->memif[MT8183_MEMIF_HDMI].const_irq = 1; mutex_init(&afe->irq_alloc_lock); /* init memif */ /* irq initialize */ afe->irqs_size = MT8183_IRQ_NUM; afe->irqs = devm_kcalloc(dev, afe->irqs_size, sizeof(*afe->irqs), GFP_KERNEL); if (!afe->irqs) return -ENOMEM; for (i = 0; i < afe->irqs_size; i++) afe->irqs[i].irq_data = &irq_data[i]; /* request irq */ irq_id = platform_get_irq(pdev, 0); if (!irq_id) { dev_err(dev, "%pOFn no irq found\n", dev->of_node); return -ENXIO; } ret = devm_request_irq(dev, irq_id, mt8183_afe_irq_handler, IRQF_TRIGGER_NONE, "asys-isr", (void *)afe); if (ret) { dev_err(dev, "could not request_irq for asys-isr\n"); return ret; } /* init sub_dais */ INIT_LIST_HEAD(&afe->sub_dais); for (i = 0; i < ARRAY_SIZE(dai_register_cbs); i++) { ret = dai_register_cbs[i](afe); if (ret) { dev_warn(afe->dev, "dai register i %d fail, ret %d\n", i, ret); return ret; } } /* init dai_driver and component_driver */ ret = mtk_afe_combine_sub_dai(afe); if (ret) { dev_warn(afe->dev, "mtk_afe_combine_sub_dai fail, ret %d\n", ret); return ret; } afe->mtk_afe_hardware = &mt8183_afe_hardware; afe->memif_fs = mt8183_memif_fs; afe->irq_fs = mt8183_irq_fs; afe->runtime_resume = mt8183_afe_runtime_resume; afe->runtime_suspend = mt8183_afe_runtime_suspend; /* register component */ ret = devm_snd_soc_register_component(&pdev->dev, &mt8183_afe_component, NULL, 0); if (ret) { dev_warn(dev, "err_platform\n"); return ret; } ret = devm_snd_soc_register_component(afe->dev, &mt8183_afe_pcm_dai_component, afe->dai_drivers, afe->num_dai_drivers); if (ret) { dev_warn(dev, "err_dai_component\n"); return ret; } return ret; }