/* * Arizona core driver * * Copyright 2012 Wolfson Microelectronics plc * * Author: Mark Brown * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "arizona.h" static const char * const wm5102_core_supplies[] = { "AVDD", "DBVDD1", }; int arizona_clk32k_enable(struct arizona *arizona) { int ret = 0; mutex_lock(&arizona->clk_lock); arizona->clk32k_ref++; if (arizona->clk32k_ref == 1) { switch (arizona->pdata.clk32k_src) { case ARIZONA_32KZ_MCLK1: ret = pm_runtime_get_sync(arizona->dev); if (ret != 0) goto out; break; } ret = regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1, ARIZONA_CLK_32K_ENA, ARIZONA_CLK_32K_ENA); } out: if (ret != 0) arizona->clk32k_ref--; mutex_unlock(&arizona->clk_lock); return ret; } EXPORT_SYMBOL_GPL(arizona_clk32k_enable); int arizona_clk32k_disable(struct arizona *arizona) { mutex_lock(&arizona->clk_lock); BUG_ON(arizona->clk32k_ref <= 0); arizona->clk32k_ref--; if (arizona->clk32k_ref == 0) { regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1, ARIZONA_CLK_32K_ENA, 0); switch (arizona->pdata.clk32k_src) { case ARIZONA_32KZ_MCLK1: pm_runtime_put_sync(arizona->dev); break; } } mutex_unlock(&arizona->clk_lock); return 0; } EXPORT_SYMBOL_GPL(arizona_clk32k_disable); static irqreturn_t arizona_clkgen_err(int irq, void *data) { struct arizona *arizona = data; dev_err(arizona->dev, "CLKGEN error\n"); return IRQ_HANDLED; } static irqreturn_t arizona_underclocked(int irq, void *data) { struct arizona *arizona = data; unsigned int val; int ret; ret = regmap_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_8, &val); if (ret != 0) { dev_err(arizona->dev, "Failed to read underclock status: %d\n", ret); return IRQ_NONE; } if (val & ARIZONA_AIF3_UNDERCLOCKED_STS) dev_err(arizona->dev, "AIF3 underclocked\n"); if (val & ARIZONA_AIF2_UNDERCLOCKED_STS) dev_err(arizona->dev, "AIF2 underclocked\n"); if (val & ARIZONA_AIF1_UNDERCLOCKED_STS) dev_err(arizona->dev, "AIF1 underclocked\n"); if (val & ARIZONA_ISRC3_UNDERCLOCKED_STS) dev_err(arizona->dev, "ISRC3 underclocked\n"); if (val & ARIZONA_ISRC2_UNDERCLOCKED_STS) dev_err(arizona->dev, "ISRC2 underclocked\n"); if (val & ARIZONA_ISRC1_UNDERCLOCKED_STS) dev_err(arizona->dev, "ISRC1 underclocked\n"); if (val & ARIZONA_FX_UNDERCLOCKED_STS) dev_err(arizona->dev, "FX underclocked\n"); if (val & ARIZONA_ASRC_UNDERCLOCKED_STS) dev_err(arizona->dev, "ASRC underclocked\n"); if (val & ARIZONA_DAC_UNDERCLOCKED_STS) dev_err(arizona->dev, "DAC underclocked\n"); if (val & ARIZONA_ADC_UNDERCLOCKED_STS) dev_err(arizona->dev, "ADC underclocked\n"); if (val & ARIZONA_MIXER_UNDERCLOCKED_STS) dev_err(arizona->dev, "Mixer dropped sample\n"); return IRQ_HANDLED; } static irqreturn_t arizona_overclocked(int irq, void *data) { struct arizona *arizona = data; unsigned int val[3]; int ret; ret = regmap_bulk_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_6, &val[0], 3); if (ret != 0) { dev_err(arizona->dev, "Failed to read overclock status: %d\n", ret); return IRQ_NONE; } switch (arizona->type) { case WM8998: case WM1814: /* Some bits are shifted on WM8998, * rearrange to match the standard bit layout */ val[0] = ((val[0] & 0x60e0) >> 1) | ((val[0] & 0x1e00) >> 2) | (val[0] & 0x000f); break; default: break; } if (val[0] & ARIZONA_PWM_OVERCLOCKED_STS) dev_err(arizona->dev, "PWM overclocked\n"); if (val[0] & ARIZONA_FX_CORE_OVERCLOCKED_STS) dev_err(arizona->dev, "FX core overclocked\n"); if (val[0] & ARIZONA_DAC_SYS_OVERCLOCKED_STS) dev_err(arizona->dev, "DAC SYS overclocked\n"); if (val[0] & ARIZONA_DAC_WARP_OVERCLOCKED_STS) dev_err(arizona->dev, "DAC WARP overclocked\n"); if (val[0] & ARIZONA_ADC_OVERCLOCKED_STS) dev_err(arizona->dev, "ADC overclocked\n"); if (val[0] & ARIZONA_MIXER_OVERCLOCKED_STS) dev_err(arizona->dev, "Mixer overclocked\n"); if (val[0] & ARIZONA_AIF3_SYNC_OVERCLOCKED_STS) dev_err(arizona->dev, "AIF3 overclocked\n"); if (val[0] & ARIZONA_AIF2_SYNC_OVERCLOCKED_STS) dev_err(arizona->dev, "AIF2 overclocked\n"); if (val[0] & ARIZONA_AIF1_SYNC_OVERCLOCKED_STS) dev_err(arizona->dev, "AIF1 overclocked\n"); if (val[0] & ARIZONA_PAD_CTRL_OVERCLOCKED_STS) dev_err(arizona->dev, "Pad control overclocked\n"); if (val[1] & ARIZONA_SLIMBUS_SUBSYS_OVERCLOCKED_STS) dev_err(arizona->dev, "Slimbus subsystem overclocked\n"); if (val[1] & ARIZONA_SLIMBUS_ASYNC_OVERCLOCKED_STS) dev_err(arizona->dev, "Slimbus async overclocked\n"); if (val[1] & ARIZONA_SLIMBUS_SYNC_OVERCLOCKED_STS) dev_err(arizona->dev, "Slimbus sync overclocked\n"); if (val[1] & ARIZONA_ASRC_ASYNC_SYS_OVERCLOCKED_STS) dev_err(arizona->dev, "ASRC async system overclocked\n"); if (val[1] & ARIZONA_ASRC_ASYNC_WARP_OVERCLOCKED_STS) dev_err(arizona->dev, "ASRC async WARP overclocked\n"); if (val[1] & ARIZONA_ASRC_SYNC_SYS_OVERCLOCKED_STS) dev_err(arizona->dev, "ASRC sync system overclocked\n"); if (val[1] & ARIZONA_ASRC_SYNC_WARP_OVERCLOCKED_STS) dev_err(arizona->dev, "ASRC sync WARP overclocked\n"); if (val[1] & ARIZONA_ADSP2_1_OVERCLOCKED_STS) dev_err(arizona->dev, "DSP1 overclocked\n"); if (val[1] & ARIZONA_ISRC3_OVERCLOCKED_STS) dev_err(arizona->dev, "ISRC3 overclocked\n"); if (val[1] & ARIZONA_ISRC2_OVERCLOCKED_STS) dev_err(arizona->dev, "ISRC2 overclocked\n"); if (val[1] & ARIZONA_ISRC1_OVERCLOCKED_STS) dev_err(arizona->dev, "ISRC1 overclocked\n"); if (val[2] & ARIZONA_SPDIF_OVERCLOCKED_STS) dev_err(arizona->dev, "SPDIF overclocked\n"); return IRQ_HANDLED; } static int arizona_poll_reg(struct arizona *arizona, int timeout, unsigned int reg, unsigned int mask, unsigned int target) { unsigned int val = 0; int ret, i; for (i = 0; i < timeout; i++) { ret = regmap_read(arizona->regmap, reg, &val); if (ret != 0) { dev_err(arizona->dev, "Failed to read reg %u: %d\n", reg, ret); continue; } if ((val & mask) == target) return 0; msleep(1); } dev_err(arizona->dev, "Polling reg %u timed out: %x\n", reg, val); return -ETIMEDOUT; } static int arizona_wait_for_boot(struct arizona *arizona) { int ret; /* * We can't use an interrupt as we need to runtime resume to do so, * we won't race with the interrupt handler as it'll be blocked on * runtime resume. */ ret = arizona_poll_reg(arizona, 5, ARIZONA_INTERRUPT_RAW_STATUS_5, ARIZONA_BOOT_DONE_STS, ARIZONA_BOOT_DONE_STS); if (!ret) regmap_write(arizona->regmap, ARIZONA_INTERRUPT_STATUS_5, ARIZONA_BOOT_DONE_STS); pm_runtime_mark_last_busy(arizona->dev); return ret; } static inline void arizona_enable_reset(struct arizona *arizona) { if (arizona->pdata.reset) gpio_set_value_cansleep(arizona->pdata.reset, 0); } static void arizona_disable_reset(struct arizona *arizona) { if (arizona->pdata.reset) { switch (arizona->type) { case WM5110: case WM8280: /* Meet requirements for minimum reset duration */ msleep(5); break; default: break; } gpio_set_value_cansleep(arizona->pdata.reset, 1); msleep(1); } } struct arizona_sysclk_state { unsigned int fll; unsigned int sysclk; }; static int arizona_enable_freerun_sysclk(struct arizona *arizona, struct arizona_sysclk_state *state) { int ret, err; /* Cache existing FLL and SYSCLK settings */ ret = regmap_read(arizona->regmap, ARIZONA_FLL1_CONTROL_1, &state->fll); if (ret) { dev_err(arizona->dev, "Failed to cache FLL settings: %d\n", ret); return ret; } ret = regmap_read(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, &state->sysclk); if (ret) { dev_err(arizona->dev, "Failed to cache SYSCLK settings: %d\n", ret); return ret; } /* Start up SYSCLK using the FLL in free running mode */ ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, ARIZONA_FLL1_ENA | ARIZONA_FLL1_FREERUN); if (ret) { dev_err(arizona->dev, "Failed to start FLL in freerunning mode: %d\n", ret); return ret; } ret = arizona_poll_reg(arizona, 25, ARIZONA_INTERRUPT_RAW_STATUS_5, ARIZONA_FLL1_CLOCK_OK_STS, ARIZONA_FLL1_CLOCK_OK_STS); if (ret) { ret = -ETIMEDOUT; goto err_fll; } ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0144); if (ret) { dev_err(arizona->dev, "Failed to start SYSCLK: %d\n", ret); goto err_fll; } return 0; err_fll: err = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll); if (err) dev_err(arizona->dev, "Failed to re-apply old FLL settings: %d\n", err); return ret; } static int arizona_disable_freerun_sysclk(struct arizona *arizona, struct arizona_sysclk_state *state) { int ret; ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, state->sysclk); if (ret) { dev_err(arizona->dev, "Failed to re-apply old SYSCLK settings: %d\n", ret); return ret; } ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll); if (ret) { dev_err(arizona->dev, "Failed to re-apply old FLL settings: %d\n", ret); return ret; } return 0; } static int wm5102_apply_hardware_patch(struct arizona *arizona) { struct arizona_sysclk_state state; int err, ret; ret = arizona_enable_freerun_sysclk(arizona, &state); if (ret) return ret; /* Start the write sequencer and wait for it to finish */ ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0, ARIZONA_WSEQ_ENA | ARIZONA_WSEQ_START | 160); if (ret) { dev_err(arizona->dev, "Failed to start write sequencer: %d\n", ret); goto err; } ret = arizona_poll_reg(arizona, 5, ARIZONA_WRITE_SEQUENCER_CTRL_1, ARIZONA_WSEQ_BUSY, 0); if (ret) { regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0, ARIZONA_WSEQ_ABORT); ret = -ETIMEDOUT; } err: err = arizona_disable_freerun_sysclk(arizona, &state); return ret ?: err; } /* * Register patch to some of the CODECs internal write sequences * to ensure a clean exit from the low power sleep state. */ static const struct reg_sequence wm5110_sleep_patch[] = { { 0x337A, 0xC100 }, { 0x337B, 0x0041 }, { 0x3300, 0xA210 }, { 0x3301, 0x050C }, }; static int wm5110_apply_sleep_patch(struct arizona *arizona) { struct arizona_sysclk_state state; int err, ret; ret = arizona_enable_freerun_sysclk(arizona, &state); if (ret) return ret; ret = regmap_multi_reg_write_bypassed(arizona->regmap, wm5110_sleep_patch, ARRAY_SIZE(wm5110_sleep_patch)); err = arizona_disable_freerun_sysclk(arizona, &state); return ret ?: err; } static int wm5102_clear_write_sequencer(struct arizona *arizona) { int ret; ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_3, 0x0); if (ret) { dev_err(arizona->dev, "Failed to clear write sequencer state: %d\n", ret); return ret; } arizona_enable_reset(arizona); regulator_disable(arizona->dcvdd); msleep(20); ret = regulator_enable(arizona->dcvdd); if (ret) { dev_err(arizona->dev, "Failed to re-enable DCVDD: %d\n", ret); return ret; } arizona_disable_reset(arizona); return 0; } #ifdef CONFIG_PM static int arizona_isolate_dcvdd(struct arizona *arizona) { int ret; ret = regmap_update_bits(arizona->regmap, ARIZONA_ISOLATION_CONTROL, ARIZONA_ISOLATE_DCVDD1, ARIZONA_ISOLATE_DCVDD1); if (ret != 0) dev_err(arizona->dev, "Failed to isolate DCVDD: %d\n", ret); return ret; } static int arizona_connect_dcvdd(struct arizona *arizona) { int ret; ret = regmap_update_bits(arizona->regmap, ARIZONA_ISOLATION_CONTROL, ARIZONA_ISOLATE_DCVDD1, 0); if (ret != 0) dev_err(arizona->dev, "Failed to connect DCVDD: %d\n", ret); return ret; } static int arizona_runtime_resume(struct device *dev) { struct arizona *arizona = dev_get_drvdata(dev); int ret; dev_dbg(arizona->dev, "Leaving AoD mode\n"); if (arizona->has_fully_powered_off) { dev_dbg(arizona->dev, "Re-enabling core supplies\n"); ret = regulator_bulk_enable(arizona->num_core_supplies, arizona->core_supplies); if (ret) { dev_err(dev, "Failed to enable core supplies: %d\n", ret); return ret; } } ret = regulator_enable(arizona->dcvdd); if (ret != 0) { dev_err(arizona->dev, "Failed to enable DCVDD: %d\n", ret); if (arizona->has_fully_powered_off) regulator_bulk_disable(arizona->num_core_supplies, arizona->core_supplies); return ret; } if (arizona->has_fully_powered_off) { arizona_disable_reset(arizona); enable_irq(arizona->irq); arizona->has_fully_powered_off = false; } regcache_cache_only(arizona->regmap, false); switch (arizona->type) { case WM5102: if (arizona->external_dcvdd) { ret = arizona_connect_dcvdd(arizona); if (ret != 0) goto err; } ret = wm5102_patch(arizona); if (ret != 0) { dev_err(arizona->dev, "Failed to apply patch: %d\n", ret); goto err; } ret = wm5102_apply_hardware_patch(arizona); if (ret) { dev_err(arizona->dev, "Failed to apply hardware patch: %d\n", ret); goto err; } break; case WM5110: case WM8280: ret = arizona_wait_for_boot(arizona); if (ret) goto err; if (arizona->external_dcvdd) { ret = arizona_connect_dcvdd(arizona); if (ret != 0) goto err; } else { /* * As this is only called for the internal regulator * (where we know voltage ranges available) it is ok * to request an exact range. */ ret = regulator_set_voltage(arizona->dcvdd, 1200000, 1200000); if (ret < 0) { dev_err(arizona->dev, "Failed to set resume voltage: %d\n", ret); goto err; } } ret = wm5110_apply_sleep_patch(arizona); if (ret) { dev_err(arizona->dev, "Failed to re-apply sleep patch: %d\n", ret); goto err; } break; default: ret = arizona_wait_for_boot(arizona); if (ret != 0) goto err; if (arizona->external_dcvdd) { ret = arizona_connect_dcvdd(arizona); if (ret != 0) goto err; } break; } ret = regcache_sync(arizona->regmap); if (ret != 0) { dev_err(arizona->dev, "Failed to restore register cache\n"); goto err; } return 0; err: regcache_cache_only(arizona->regmap, true); regulator_disable(arizona->dcvdd); return ret; } static int arizona_runtime_suspend(struct device *dev) { struct arizona *arizona = dev_get_drvdata(dev); unsigned int val; int ret; dev_dbg(arizona->dev, "Entering AoD mode\n"); ret = regmap_read(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, &val); if (ret) { dev_err(dev, "Failed to check jack det status: %d\n", ret); return ret; } switch (arizona->type) { case WM5110: case WM8280: if (arizona->external_dcvdd) { ret = arizona_isolate_dcvdd(arizona); if (ret != 0) return ret; } else { /* * As this is only called for the internal regulator * (where we know voltage ranges available) it is ok * to request an exact range. */ ret = regulator_set_voltage(arizona->dcvdd, 1175000, 1175000); if (ret < 0) { dev_err(arizona->dev, "Failed to set suspend voltage: %d\n", ret); return ret; } } break; case WM5102: if (arizona->external_dcvdd) { ret = arizona_isolate_dcvdd(arizona); if (ret != 0) return ret; } if (!(val & ARIZONA_JD1_ENA)) { ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_3, 0x0); if (ret) { dev_err(arizona->dev, "Failed to clear write sequencer: %d\n", ret); return ret; } } break; default: if (arizona->external_dcvdd) { ret = arizona_isolate_dcvdd(arizona); if (ret != 0) return ret; } break; } regcache_cache_only(arizona->regmap, true); regcache_mark_dirty(arizona->regmap); regulator_disable(arizona->dcvdd); /* Allow us to completely power down if no jack detection */ if (!(val & ARIZONA_JD1_ENA)) { dev_dbg(arizona->dev, "Fully powering off\n"); arizona->has_fully_powered_off = true; disable_irq_nosync(arizona->irq); arizona_enable_reset(arizona); regulator_bulk_disable(arizona->num_core_supplies, arizona->core_supplies); } return 0; } #endif #ifdef CONFIG_PM_SLEEP static int arizona_suspend(struct device *dev) { struct arizona *arizona = dev_get_drvdata(dev); dev_dbg(arizona->dev, "Suspend, disabling IRQ\n"); disable_irq(arizona->irq); return 0; } static int arizona_suspend_late(struct device *dev) { struct arizona *arizona = dev_get_drvdata(dev); dev_dbg(arizona->dev, "Late suspend, reenabling IRQ\n"); enable_irq(arizona->irq); return 0; } static int arizona_resume_noirq(struct device *dev) { struct arizona *arizona = dev_get_drvdata(dev); dev_dbg(arizona->dev, "Early resume, disabling IRQ\n"); disable_irq(arizona->irq); return 0; } static int arizona_resume(struct device *dev) { struct arizona *arizona = dev_get_drvdata(dev); dev_dbg(arizona->dev, "Late resume, reenabling IRQ\n"); enable_irq(arizona->irq); return 0; } #endif const struct dev_pm_ops arizona_pm_ops = { SET_RUNTIME_PM_OPS(arizona_runtime_suspend, arizona_runtime_resume, NULL) SET_SYSTEM_SLEEP_PM_OPS(arizona_suspend, arizona_resume) #ifdef CONFIG_PM_SLEEP .suspend_late = arizona_suspend_late, .resume_noirq = arizona_resume_noirq, #endif }; EXPORT_SYMBOL_GPL(arizona_pm_ops); #ifdef CONFIG_OF unsigned long arizona_of_get_type(struct device *dev) { const struct of_device_id *id = of_match_device(arizona_of_match, dev); if (id) return (unsigned long)id->data; else return 0; } EXPORT_SYMBOL_GPL(arizona_of_get_type); int arizona_of_get_named_gpio(struct arizona *arizona, const char *prop, bool mandatory) { int gpio; gpio = of_get_named_gpio(arizona->dev->of_node, prop, 0); if (gpio < 0) { if (mandatory) dev_err(arizona->dev, "Mandatory DT gpio %s missing/malformed: %d\n", prop, gpio); gpio = 0; } return gpio; } EXPORT_SYMBOL_GPL(arizona_of_get_named_gpio); static int arizona_of_get_core_pdata(struct arizona *arizona) { struct arizona_pdata *pdata = &arizona->pdata; struct property *prop; const __be32 *cur; u32 val; int ret, i; int count = 0; pdata->reset = arizona_of_get_named_gpio(arizona, "wlf,reset", true); ret = of_property_read_u32_array(arizona->dev->of_node, "wlf,gpio-defaults", pdata->gpio_defaults, ARRAY_SIZE(pdata->gpio_defaults)); if (ret >= 0) { /* * All values are literal except out of range values * which are chip default, translate into platform * data which uses 0 as chip default and out of range * as zero. */ for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) { if (pdata->gpio_defaults[i] > 0xffff) pdata->gpio_defaults[i] = 0; else if (pdata->gpio_defaults[i] == 0) pdata->gpio_defaults[i] = 0x10000; } } else { dev_err(arizona->dev, "Failed to parse GPIO defaults: %d\n", ret); } of_property_for_each_u32(arizona->dev->of_node, "wlf,inmode", prop, cur, val) { if (count == ARRAY_SIZE(pdata->inmode)) break; pdata->inmode[count] = val; count++; } count = 0; of_property_for_each_u32(arizona->dev->of_node, "wlf,dmic-ref", prop, cur, val) { if (count == ARRAY_SIZE(pdata->dmic_ref)) break; pdata->dmic_ref[count] = val; count++; } return 0; } const struct of_device_id arizona_of_match[] = { { .compatible = "wlf,wm5102", .data = (void *)WM5102 }, { .compatible = "wlf,wm5110", .data = (void *)WM5110 }, { .compatible = "wlf,wm8280", .data = (void *)WM8280 }, { .compatible = "wlf,wm8997", .data = (void *)WM8997 }, { .compatible = "wlf,wm8998", .data = (void *)WM8998 }, { .compatible = "wlf,wm1814", .data = (void *)WM1814 }, {}, }; EXPORT_SYMBOL_GPL(arizona_of_match); #else static inline int arizona_of_get_core_pdata(struct arizona *arizona) { return 0; } #endif static const struct mfd_cell early_devs[] = { { .name = "arizona-ldo1" }, }; static const char * const wm5102_supplies[] = { "MICVDD", "DBVDD2", "DBVDD3", "CPVDD", "SPKVDDL", "SPKVDDR", }; static const struct mfd_cell wm5102_devs[] = { { .name = "arizona-micsupp" }, { .name = "arizona-extcon", .parent_supplies = wm5102_supplies, .num_parent_supplies = 1, /* We only need MICVDD */ }, { .name = "arizona-gpio" }, { .name = "arizona-haptics" }, { .name = "arizona-pwm" }, { .name = "wm5102-codec", .parent_supplies = wm5102_supplies, .num_parent_supplies = ARRAY_SIZE(wm5102_supplies), }, }; static const struct mfd_cell wm5110_devs[] = { { .name = "arizona-micsupp" }, { .name = "arizona-extcon", .parent_supplies = wm5102_supplies, .num_parent_supplies = 1, /* We only need MICVDD */ }, { .name = "arizona-gpio" }, { .name = "arizona-haptics" }, { .name = "arizona-pwm" }, { .name = "wm5110-codec", .parent_supplies = wm5102_supplies, .num_parent_supplies = ARRAY_SIZE(wm5102_supplies), }, }; static const char * const wm8997_supplies[] = { "MICVDD", "DBVDD2", "CPVDD", "SPKVDD", }; static const struct mfd_cell wm8997_devs[] = { { .name = "arizona-micsupp" }, { .name = "arizona-extcon", .parent_supplies = wm8997_supplies, .num_parent_supplies = 1, /* We only need MICVDD */ }, { .name = "arizona-gpio" }, { .name = "arizona-haptics" }, { .name = "arizona-pwm" }, { .name = "wm8997-codec", .parent_supplies = wm8997_supplies, .num_parent_supplies = ARRAY_SIZE(wm8997_supplies), }, }; static const struct mfd_cell wm8998_devs[] = { { .name = "arizona-extcon", .parent_supplies = wm5102_supplies, .num_parent_supplies = 1, /* We only need MICVDD */ }, { .name = "arizona-gpio" }, { .name = "arizona-haptics" }, { .name = "arizona-pwm" }, { .name = "wm8998-codec", .parent_supplies = wm5102_supplies, .num_parent_supplies = ARRAY_SIZE(wm5102_supplies), }, { .name = "arizona-micsupp" }, }; int arizona_dev_init(struct arizona *arizona) { struct device *dev = arizona->dev; const char *type_name; unsigned int reg, val, mask; int (*apply_patch)(struct arizona *) = NULL; int ret, i; dev_set_drvdata(arizona->dev, arizona); mutex_init(&arizona->clk_lock); if (dev_get_platdata(arizona->dev)) memcpy(&arizona->pdata, dev_get_platdata(arizona->dev), sizeof(arizona->pdata)); else arizona_of_get_core_pdata(arizona); regcache_cache_only(arizona->regmap, true); switch (arizona->type) { case WM5102: case WM5110: case WM8280: case WM8997: case WM8998: case WM1814: for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++) arizona->core_supplies[i].supply = wm5102_core_supplies[i]; arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies); break; default: dev_err(arizona->dev, "Unknown device type %d\n", arizona->type); return -EINVAL; } /* Mark DCVDD as external, LDO1 driver will clear if internal */ arizona->external_dcvdd = true; ret = mfd_add_devices(arizona->dev, -1, early_devs, ARRAY_SIZE(early_devs), NULL, 0, NULL); if (ret != 0) { dev_err(dev, "Failed to add early children: %d\n", ret); return ret; } ret = devm_regulator_bulk_get(dev, arizona->num_core_supplies, arizona->core_supplies); if (ret != 0) { dev_err(dev, "Failed to request core supplies: %d\n", ret); goto err_early; } /** * Don't use devres here because the only device we have to get * against is the MFD device and DCVDD will likely be supplied by * one of its children. Meaning that the regulator will be * destroyed by the time devres calls regulator put. */ arizona->dcvdd = regulator_get(arizona->dev, "DCVDD"); if (IS_ERR(arizona->dcvdd)) { ret = PTR_ERR(arizona->dcvdd); dev_err(dev, "Failed to request DCVDD: %d\n", ret); goto err_early; } if (arizona->pdata.reset) { /* Start out with /RESET low to put the chip into reset */ ret = devm_gpio_request_one(arizona->dev, arizona->pdata.reset, GPIOF_DIR_OUT | GPIOF_INIT_LOW, "arizona /RESET"); if (ret != 0) { dev_err(dev, "Failed to request /RESET: %d\n", ret); goto err_dcvdd; } } ret = regulator_bulk_enable(arizona->num_core_supplies, arizona->core_supplies); if (ret != 0) { dev_err(dev, "Failed to enable core supplies: %d\n", ret); goto err_dcvdd; } ret = regulator_enable(arizona->dcvdd); if (ret != 0) { dev_err(dev, "Failed to enable DCVDD: %d\n", ret); goto err_enable; } arizona_disable_reset(arizona); regcache_cache_only(arizona->regmap, false); /* Verify that this is a chip we know about */ ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®); if (ret != 0) { dev_err(dev, "Failed to read ID register: %d\n", ret); goto err_reset; } switch (reg) { case 0x5102: case 0x5110: case 0x6349: case 0x8997: break; default: dev_err(arizona->dev, "Unknown device ID: %x\n", reg); goto err_reset; } /* If we have a /RESET GPIO we'll already be reset */ if (!arizona->pdata.reset) { ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0); if (ret != 0) { dev_err(dev, "Failed to reset device: %d\n", ret); goto err_reset; } msleep(1); } /* Ensure device startup is complete */ switch (arizona->type) { case WM5102: ret = regmap_read(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_3, &val); if (ret) { dev_err(dev, "Failed to check write sequencer state: %d\n", ret); } else if (val & 0x01) { ret = wm5102_clear_write_sequencer(arizona); if (ret) return ret; } break; default: break; } ret = arizona_wait_for_boot(arizona); if (ret) { dev_err(arizona->dev, "Device failed initial boot: %d\n", ret); goto err_reset; } /* Read the device ID information & do device specific stuff */ ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, ®); if (ret != 0) { dev_err(dev, "Failed to read ID register: %d\n", ret); goto err_reset; } ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION, &arizona->rev); if (ret != 0) { dev_err(dev, "Failed to read revision register: %d\n", ret); goto err_reset; } arizona->rev &= ARIZONA_DEVICE_REVISION_MASK; switch (reg) { #ifdef CONFIG_MFD_WM5102 case 0x5102: type_name = "WM5102"; if (arizona->type != WM5102) { dev_err(arizona->dev, "WM5102 registered as %d\n", arizona->type); arizona->type = WM5102; } apply_patch = wm5102_patch; arizona->rev &= 0x7; break; #endif #ifdef CONFIG_MFD_WM5110 case 0x5110: switch (arizona->type) { case WM5110: type_name = "WM5110"; break; case WM8280: type_name = "WM8280"; break; default: type_name = "WM5110"; dev_err(arizona->dev, "WM5110 registered as %d\n", arizona->type); arizona->type = WM5110; break; } apply_patch = wm5110_patch; break; #endif #ifdef CONFIG_MFD_WM8997 case 0x8997: type_name = "WM8997"; if (arizona->type != WM8997) { dev_err(arizona->dev, "WM8997 registered as %d\n", arizona->type); arizona->type = WM8997; } apply_patch = wm8997_patch; break; #endif #ifdef CONFIG_MFD_WM8998 case 0x6349: switch (arizona->type) { case WM8998: type_name = "WM8998"; break; case WM1814: type_name = "WM1814"; break; default: type_name = "WM8998"; dev_err(arizona->dev, "WM8998 registered as %d\n", arizona->type); arizona->type = WM8998; } apply_patch = wm8998_patch; break; #endif default: dev_err(arizona->dev, "Unknown device ID %x\n", reg); goto err_reset; } dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A'); if (apply_patch) { ret = apply_patch(arizona); if (ret != 0) { dev_err(arizona->dev, "Failed to apply patch: %d\n", ret); goto err_reset; } switch (arizona->type) { case WM5102: ret = wm5102_apply_hardware_patch(arizona); if (ret) { dev_err(arizona->dev, "Failed to apply hardware patch: %d\n", ret); goto err_reset; } break; case WM5110: case WM8280: ret = wm5110_apply_sleep_patch(arizona); if (ret) { dev_err(arizona->dev, "Failed to apply sleep patch: %d\n", ret); goto err_reset; } break; default: break; } } for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) { if (!arizona->pdata.gpio_defaults[i]) continue; regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i, arizona->pdata.gpio_defaults[i]); } /* Chip default */ if (!arizona->pdata.clk32k_src) arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2; switch (arizona->pdata.clk32k_src) { case ARIZONA_32KZ_MCLK1: case ARIZONA_32KZ_MCLK2: regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1, ARIZONA_CLK_32K_SRC_MASK, arizona->pdata.clk32k_src - 1); arizona_clk32k_enable(arizona); break; case ARIZONA_32KZ_NONE: regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1, ARIZONA_CLK_32K_SRC_MASK, 2); break; default: dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n", arizona->pdata.clk32k_src); ret = -EINVAL; goto err_reset; } for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) { if (!arizona->pdata.micbias[i].mV && !arizona->pdata.micbias[i].bypass) continue; /* Apply default for bypass mode */ if (!arizona->pdata.micbias[i].mV) arizona->pdata.micbias[i].mV = 2800; val = (arizona->pdata.micbias[i].mV - 1500) / 100; val <<= ARIZONA_MICB1_LVL_SHIFT; if (arizona->pdata.micbias[i].ext_cap) val |= ARIZONA_MICB1_EXT_CAP; if (arizona->pdata.micbias[i].discharge) val |= ARIZONA_MICB1_DISCH; if (arizona->pdata.micbias[i].soft_start) val |= ARIZONA_MICB1_RATE; if (arizona->pdata.micbias[i].bypass) val |= ARIZONA_MICB1_BYPASS; regmap_update_bits(arizona->regmap, ARIZONA_MIC_BIAS_CTRL_1 + i, ARIZONA_MICB1_LVL_MASK | ARIZONA_MICB1_EXT_CAP | ARIZONA_MICB1_DISCH | ARIZONA_MICB1_BYPASS | ARIZONA_MICB1_RATE, val); } for (i = 0; i < ARIZONA_MAX_INPUT; i++) { /* Default for both is 0 so noop with defaults */ val = arizona->pdata.dmic_ref[i] << ARIZONA_IN1_DMIC_SUP_SHIFT; if (arizona->pdata.inmode[i] & ARIZONA_INMODE_DMIC) val |= 1 << ARIZONA_IN1_MODE_SHIFT; switch (arizona->type) { case WM8998: case WM1814: regmap_update_bits(arizona->regmap, ARIZONA_ADC_DIGITAL_VOLUME_1L + (i * 8), ARIZONA_IN1L_SRC_SE_MASK, (arizona->pdata.inmode[i] & ARIZONA_INMODE_SE) << ARIZONA_IN1L_SRC_SE_SHIFT); regmap_update_bits(arizona->regmap, ARIZONA_ADC_DIGITAL_VOLUME_1R + (i * 8), ARIZONA_IN1R_SRC_SE_MASK, (arizona->pdata.inmode[i] & ARIZONA_INMODE_SE) << ARIZONA_IN1R_SRC_SE_SHIFT); mask = ARIZONA_IN1_DMIC_SUP_MASK | ARIZONA_IN1_MODE_MASK; break; default: if (arizona->pdata.inmode[i] & ARIZONA_INMODE_SE) val |= 1 << ARIZONA_IN1_SINGLE_ENDED_SHIFT; mask = ARIZONA_IN1_DMIC_SUP_MASK | ARIZONA_IN1_MODE_MASK | ARIZONA_IN1_SINGLE_ENDED_MASK; break; } regmap_update_bits(arizona->regmap, ARIZONA_IN1L_CONTROL + (i * 8), mask, val); } for (i = 0; i < ARIZONA_MAX_OUTPUT; i++) { /* Default is 0 so noop with defaults */ if (arizona->pdata.out_mono[i]) val = ARIZONA_OUT1_MONO; else val = 0; regmap_update_bits(arizona->regmap, ARIZONA_OUTPUT_PATH_CONFIG_1L + (i * 8), ARIZONA_OUT1_MONO, val); } for (i = 0; i < ARIZONA_MAX_PDM_SPK; i++) { if (arizona->pdata.spk_mute[i]) regmap_update_bits(arizona->regmap, ARIZONA_PDM_SPK1_CTRL_1 + (i * 2), ARIZONA_SPK1_MUTE_ENDIAN_MASK | ARIZONA_SPK1_MUTE_SEQ1_MASK, arizona->pdata.spk_mute[i]); if (arizona->pdata.spk_fmt[i]) regmap_update_bits(arizona->regmap, ARIZONA_PDM_SPK1_CTRL_2 + (i * 2), ARIZONA_SPK1_FMT_MASK, arizona->pdata.spk_fmt[i]); } pm_runtime_set_active(arizona->dev); pm_runtime_enable(arizona->dev); /* Set up for interrupts */ ret = arizona_irq_init(arizona); if (ret != 0) goto err_reset; pm_runtime_set_autosuspend_delay(arizona->dev, 100); pm_runtime_use_autosuspend(arizona->dev); arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error", arizona_clkgen_err, arizona); arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked", arizona_overclocked, arizona); arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked", arizona_underclocked, arizona); switch (arizona->type) { case WM5102: ret = mfd_add_devices(arizona->dev, -1, wm5102_devs, ARRAY_SIZE(wm5102_devs), NULL, 0, NULL); break; case WM5110: case WM8280: ret = mfd_add_devices(arizona->dev, -1, wm5110_devs, ARRAY_SIZE(wm5110_devs), NULL, 0, NULL); break; case WM8997: ret = mfd_add_devices(arizona->dev, -1, wm8997_devs, ARRAY_SIZE(wm8997_devs), NULL, 0, NULL); break; case WM8998: case WM1814: ret = mfd_add_devices(arizona->dev, -1, wm8998_devs, ARRAY_SIZE(wm8998_devs), NULL, 0, NULL); break; } if (ret != 0) { dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret); goto err_irq; } return 0; err_irq: arizona_irq_exit(arizona); err_reset: arizona_enable_reset(arizona); regulator_disable(arizona->dcvdd); err_enable: regulator_bulk_disable(arizona->num_core_supplies, arizona->core_supplies); err_dcvdd: regulator_put(arizona->dcvdd); err_early: mfd_remove_devices(dev); return ret; } EXPORT_SYMBOL_GPL(arizona_dev_init); int arizona_dev_exit(struct arizona *arizona) { pm_runtime_disable(arizona->dev); regulator_disable(arizona->dcvdd); regulator_put(arizona->dcvdd); mfd_remove_devices(arizona->dev); arizona_free_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, arizona); arizona_free_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, arizona); arizona_free_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, arizona); arizona_irq_exit(arizona); arizona_enable_reset(arizona); regulator_bulk_disable(arizona->num_core_supplies, arizona->core_supplies); return 0; } EXPORT_SYMBOL_GPL(arizona_dev_exit);