| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Mark Brown | 3072 | 48.81% | 24 | 26.97% |
| Charles Keepax | 2074 | 32.95% | 47 | 52.81% |
| Richard Fitzgerald | 920 | 14.62% | 8 | 8.99% |
| Sylwester Nawrocki | 188 | 2.99% | 1 | 1.12% |
| Lee Jones | 22 | 0.35% | 3 | 3.37% |
| Sapthagiri Baratam | 10 | 0.16% | 1 | 1.12% |
| Geert Uytterhoeven | 4 | 0.06% | 1 | 1.12% |
| Rafael J. Wysocki | 1 | 0.02% | 1 | 1.12% |
| Nariman Poushin | 1 | 0.02% | 1 | 1.12% |
| Colin Ian King | 1 | 0.02% | 1 | 1.12% |
| Javier Martinez Canillas | 1 | 0.02% | 1 | 1.12% |
| Total | 6294 | 89 |
/* * Arizona core driver * * Copyright 2012 Wolfson Microelectronics plc * * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> * * 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 <linux/clk.h> #include <linux/delay.h> #include <linux/err.h> #include <linux/gpio/consumer.h> #include <linux/interrupt.h> #include <linux/mfd/core.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_device.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/regulator/machine.h> #include <linux/slab.h> #include <linux/ktime.h> #include <linux/platform_device.h> #include <linux/mfd/arizona/core.h> #include <linux/mfd/arizona/registers.h> #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 err_ref; ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK1]); if (ret != 0) { pm_runtime_put_sync(arizona->dev); goto err_ref; } break; case ARIZONA_32KZ_MCLK2: ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK2]); if (ret != 0) goto err_ref; break; } ret = regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1, ARIZONA_CLK_32K_ENA, ARIZONA_CLK_32K_ENA); } err_ref: 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); clk_disable_unprepare(arizona->mclk[ARIZONA_MCLK1]); break; case ARIZONA_32KZ_MCLK2: clk_disable_unprepare(arizona->mclk[ARIZONA_MCLK2]); 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; } #define ARIZONA_REG_POLL_DELAY_US 7500 static inline bool arizona_poll_reg_delay(ktime_t timeout) { if (ktime_compare(ktime_get(), timeout) > 0) return false; usleep_range(ARIZONA_REG_POLL_DELAY_US / 2, ARIZONA_REG_POLL_DELAY_US); return true; } static int arizona_poll_reg(struct arizona *arizona, int timeout_ms, unsigned int reg, unsigned int mask, unsigned int target) { ktime_t timeout = ktime_add_us(ktime_get(), timeout_ms * USEC_PER_MSEC); unsigned int val = 0; int ret; do { ret = regmap_read(arizona->regmap, reg, &val); if ((val & mask) == target) return 0; } while (arizona_poll_reg_delay(timeout)); if (ret) { dev_err(arizona->dev, "Failed polling reg 0x%x: %d\n", reg, ret); return ret; } dev_err(arizona->dev, "Polling reg 0x%x 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, 30, 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) gpiod_set_raw_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 */ usleep_range(5000, 10000); break; default: break; } gpiod_set_raw_value_cansleep(arizona->pdata.reset, 1); usleep_range(1000, 5000); } } 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, 180, ARIZONA_INTERRUPT_RAW_STATUS_5, ARIZONA_FLL1_CLOCK_OK_STS, ARIZONA_FLL1_CLOCK_OK_STS); if (ret) 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, 30, ARIZONA_WRITE_SEQUENCER_CTRL_1, ARIZONA_WSEQ_BUSY, 0); if (ret) regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0, ARIZONA_WSEQ_ABORT); 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_is_jack_det_active(struct arizona *arizona) { unsigned int val; int ret; ret = regmap_read(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, &val); if (ret) { dev_err(arizona->dev, "Failed to check jack det status: %d\n", ret); return ret; } else if (val & ARIZONA_JD1_ENA) { return 1; } else { return 0; } } 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; case WM1831: case CS47L24: ret = arizona_wait_for_boot(arizona); if (ret != 0) 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); int jd_active = 0; int ret; dev_dbg(arizona->dev, "Entering AoD mode\n"); switch (arizona->type) { case WM5110: case WM8280: jd_active = arizona_is_jack_det_active(arizona); if (jd_active < 0) return jd_active; 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: jd_active = arizona_is_jack_det_active(arizona); if (jd_active < 0) return jd_active; if (arizona->external_dcvdd) { ret = arizona_isolate_dcvdd(arizona); if (ret != 0) return ret; } if (!jd_active) { 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; case WM1831: case CS47L24: break; default: jd_active = arizona_is_jack_det_active(arizona); if (jd_active < 0) return jd_active; 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 (!jd_active) { 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_noirq(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, "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) SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(arizona_suspend_noirq, arizona_resume_noirq) }; 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); static int arizona_of_get_core_pdata(struct arizona *arizona) { struct arizona_pdata *pdata = &arizona->pdata; int ret, i; /* Handle old non-standard DT binding */ pdata->reset = devm_gpiod_get_from_of_node(arizona->dev, arizona->dev->of_node, "wlf,reset", 0, GPIOD_OUT_LOW, "arizona /RESET"); if (IS_ERR(pdata->reset)) { ret = PTR_ERR(pdata->reset); /* * Reset missing will be caught when other binding is read * but all other errors imply this binding is in use but has * encountered a problem so should be handled. */ if (ret == -EPROBE_DEFER) return ret; else if (ret != -ENOENT && ret != -ENOSYS) dev_err(arizona->dev, "Reset GPIO malformed: %d\n", ret); pdata->reset = NULL; } 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); } 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 }, { .compatible = "wlf,wm1831", .data = (void *)WM1831 }, { .compatible = "cirrus,cs47l24", .data = (void *)CS47L24 }, {}, }; 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-gpio" }, { .name = "arizona-extcon", .parent_supplies = wm5102_supplies, .num_parent_supplies = 1, /* We only need MICVDD */ }, { .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-gpio" }, { .name = "arizona-extcon", .parent_supplies = wm5102_supplies, .num_parent_supplies = 1, /* We only need MICVDD */ }, { .name = "arizona-haptics" }, { .name = "arizona-pwm" }, { .name = "wm5110-codec", .parent_supplies = wm5102_supplies, .num_parent_supplies = ARRAY_SIZE(wm5102_supplies), }, }; static const char * const cs47l24_supplies[] = { "MICVDD", "CPVDD", "SPKVDD", }; static const struct mfd_cell cs47l24_devs[] = { { .name = "arizona-gpio" }, { .name = "arizona-haptics" }, { .name = "arizona-pwm" }, { .name = "cs47l24-codec", .parent_supplies = cs47l24_supplies, .num_parent_supplies = ARRAY_SIZE(cs47l24_supplies), }, }; static const char * const wm8997_supplies[] = { "MICVDD", "DBVDD2", "CPVDD", "SPKVDD", }; static const struct mfd_cell wm8997_devs[] = { { .name = "arizona-micsupp" }, { .name = "arizona-gpio" }, { .name = "arizona-extcon", .parent_supplies = wm8997_supplies, .num_parent_supplies = 1, /* We only need MICVDD */ }, { .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-micsupp" }, { .name = "arizona-gpio" }, { .name = "arizona-extcon", .parent_supplies = wm5102_supplies, .num_parent_supplies = 1, /* We only need MICVDD */ }, { .name = "arizona-haptics" }, { .name = "arizona-pwm" }, { .name = "wm8998-codec", .parent_supplies = wm5102_supplies, .num_parent_supplies = ARRAY_SIZE(wm5102_supplies), }, }; int arizona_dev_init(struct arizona *arizona) { static const char * const mclk_name[] = { "mclk1", "mclk2" }; struct device *dev = arizona->dev; const char *type_name = NULL; unsigned int reg, val; int (*apply_patch)(struct arizona *) = NULL; const struct mfd_cell *subdevs = NULL; int n_subdevs, 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 { ret = arizona_of_get_core_pdata(arizona); if (ret < 0) return ret; } BUILD_BUG_ON(ARRAY_SIZE(arizona->mclk) != ARRAY_SIZE(mclk_name)); for (i = 0; i < ARRAY_SIZE(arizona->mclk); i++) { arizona->mclk[i] = devm_clk_get(arizona->dev, mclk_name[i]); if (IS_ERR(arizona->mclk[i])) { dev_info(arizona->dev, "Failed to get %s: %ld\n", mclk_name[i], PTR_ERR(arizona->mclk[i])); arizona->mclk[i] = NULL; } } regcache_cache_only(arizona->regmap, true); switch (arizona->type) { case WM5102: case WM5110: case WM8280: case WM8997: case WM8998: case WM1814: case WM1831: case CS47L24: 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 -ENODEV; } /* Mark DCVDD as external, LDO1 driver will clear if internal */ arizona->external_dcvdd = true; switch (arizona->type) { case WM1831: case CS47L24: break; /* No LDO1 regulator */ default: 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; } break; } 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 */ arizona->pdata.reset = devm_gpiod_get(arizona->dev, "reset", GPIOD_OUT_LOW); if (IS_ERR(arizona->pdata.reset)) { ret = PTR_ERR(arizona->pdata.reset); if (ret == -EPROBE_DEFER) goto err_dcvdd; dev_err(arizona->dev, "Reset GPIO missing/malformed: %d\n", ret); arizona->pdata.reset = NULL; } } 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 0x6363: case 0x8997: break; default: dev_err(arizona->dev, "Unknown device ID: %x\n", reg); ret = -ENODEV; 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; } usleep_range(1000, 5000); } /* 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) { case 0x5102: if (IS_ENABLED(CONFIG_MFD_WM5102)) { type_name = "WM5102"; if (arizona->type != WM5102) { dev_warn(arizona->dev, "WM5102 registered as %d\n", arizona->type); arizona->type = WM5102; } apply_patch = wm5102_patch; arizona->rev &= 0x7; subdevs = wm5102_devs; n_subdevs = ARRAY_SIZE(wm5102_devs); } break; case 0x5110: if (IS_ENABLED(CONFIG_MFD_WM5110)) { switch (arizona->type) { case WM5110: type_name = "WM5110"; break; case WM8280: type_name = "WM8280"; break; default: type_name = "WM5110"; dev_warn(arizona->dev, "WM5110 registered as %d\n", arizona->type); arizona->type = WM5110; break; } apply_patch = wm5110_patch; subdevs = wm5110_devs; n_subdevs = ARRAY_SIZE(wm5110_devs); } break; case 0x6363: if (IS_ENABLED(CONFIG_MFD_CS47L24)) { switch (arizona->type) { case CS47L24: type_name = "CS47L24"; break; case WM1831: type_name = "WM1831"; break; default: dev_warn(arizona->dev, "CS47L24 registered as %d\n", arizona->type); arizona->type = CS47L24; break; } apply_patch = cs47l24_patch; subdevs = cs47l24_devs; n_subdevs = ARRAY_SIZE(cs47l24_devs); } break; case 0x8997: if (IS_ENABLED(CONFIG_MFD_WM8997)) { type_name = "WM8997"; if (arizona->type != WM8997) { dev_warn(arizona->dev, "WM8997 registered as %d\n", arizona->type); arizona->type = WM8997; } apply_patch = wm8997_patch; subdevs = wm8997_devs; n_subdevs = ARRAY_SIZE(wm8997_devs); } break; case 0x6349: if (IS_ENABLED(CONFIG_MFD_WM8998)) { switch (arizona->type) { case WM8998: type_name = "WM8998"; break; case WM1814: type_name = "WM1814"; break; default: type_name = "WM8998"; dev_warn(arizona->dev, "WM8998 registered as %d\n", arizona->type); arizona->type = WM8998; } apply_patch = wm8998_patch; subdevs = wm8998_devs; n_subdevs = ARRAY_SIZE(wm8998_devs); } break; default: dev_err(arizona->dev, "Unknown device ID %x\n", reg); ret = -ENODEV; goto err_reset; } if (!subdevs) { dev_err(arizona->dev, "No kernel support for device ID %x\n", reg); ret = -ENODEV; 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); } 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_pm; 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); ret = mfd_add_devices(arizona->dev, PLATFORM_DEVID_NONE, subdevs, n_subdevs, NULL, 0, NULL); if (ret) { dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret); goto err_irq; } return 0; err_irq: arizona_irq_exit(arizona); err_pm: pm_runtime_disable(arizona->dev); 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) { disable_irq(arizona->irq); 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);
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