diff options
author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/mfd/arizona-core.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/mfd/arizona-core.c')
-rw-r--r-- | kernel/drivers/mfd/arizona-core.c | 1092 |
1 files changed, 1092 insertions, 0 deletions
diff --git a/kernel/drivers/mfd/arizona-core.c b/kernel/drivers/mfd/arizona-core.c new file mode 100644 index 000000000..6ca6dfab5 --- /dev/null +++ b/kernel/drivers/mfd/arizona-core.c @@ -0,0 +1,1092 @@ +/* + * 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/delay.h> +#include <linux/err.h> +#include <linux/gpio.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/of_gpio.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/mfd/arizona/core.h> +#include <linux/mfd/arizona/registers.h> + +#include "arizona.h" + +static const char *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) +{ + int ret = 0; + + 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 ret; +} +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[2]; + int ret; + + ret = regmap_bulk_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_6, + &val[0], 2); + if (ret != 0) { + dev_err(arizona->dev, "Failed to read overclock status: %d\n", + ret); + return IRQ_NONE; + } + + 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"); + + 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 int arizona_apply_hardware_patch(struct arizona* arizona) +{ + unsigned int fll, sysclk; + int ret, err; + + /* Cache existing FLL and SYSCLK settings */ + ret = regmap_read(arizona->regmap, ARIZONA_FLL1_CONTROL_1, &fll); + if (ret != 0) { + dev_err(arizona->dev, "Failed to cache FLL settings: %d\n", + ret); + return ret; + } + ret = regmap_read(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, &sysclk); + if (ret != 0) { + 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 != 0) { + 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 != 0) { + ret = -ETIMEDOUT; + goto err_fll; + } + + ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0144); + if (ret != 0) { + dev_err(arizona->dev, "Failed to start SYSCLK: %d\n", ret); + goto err_fll; + } + + /* 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 != 0) { + dev_err(arizona->dev, "Failed to start write sequencer: %d\n", + ret); + goto err_sysclk; + } + ret = arizona_poll_reg(arizona, 5, ARIZONA_WRITE_SEQUENCER_CTRL_1, + ARIZONA_WSEQ_BUSY, 0); + if (ret != 0) { + regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0, + ARIZONA_WSEQ_ABORT); + ret = -ETIMEDOUT; + } + +err_sysclk: + err = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, sysclk); + if (err != 0) { + dev_err(arizona->dev, + "Failed to re-apply old SYSCLK settings: %d\n", + err); + } + +err_fll: + err = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, fll); + if (err != 0) { + dev_err(arizona->dev, + "Failed to re-apply old FLL settings: %d\n", + err); + } + + if (ret != 0) + return ret; + else + return err; +} + +#ifdef CONFIG_PM +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"); + + ret = regulator_enable(arizona->dcvdd); + if (ret != 0) { + dev_err(arizona->dev, "Failed to enable DCVDD: %d\n", ret); + return ret; + } + + regcache_cache_only(arizona->regmap, false); + + switch (arizona->type) { + case WM5102: + if (arizona->external_dcvdd) { + 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); + goto err; + } + } + + ret = wm5102_patch(arizona); + if (ret != 0) { + dev_err(arizona->dev, "Failed to apply patch: %d\n", + ret); + goto err; + } + + ret = arizona_apply_hardware_patch(arizona); + if (ret != 0) { + dev_err(arizona->dev, + "Failed to apply hardware patch: %d\n", + ret); + goto err; + } + break; + default: + ret = arizona_wait_for_boot(arizona); + if (ret != 0) { + goto err; + } + + if (arizona->external_dcvdd) { + 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); + 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 ret; + + dev_dbg(arizona->dev, "Entering AoD mode\n"); + + if (arizona->external_dcvdd) { + 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; + } + } + + regcache_cache_only(arizona->regmap, true); + regcache_mark_dirty(arizona->regmap); + regulator_disable(arizona->dcvdd); + + 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", + arizona->pdata.gpio_defaults, + ARRAY_SIZE(arizona->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(arizona->pdata.gpio_defaults); i++) { + if (arizona->pdata.gpio_defaults[i] > 0xffff) + arizona->pdata.gpio_defaults[i] = 0; + else if (arizona->pdata.gpio_defaults[i] == 0) + arizona->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(arizona->pdata.inmode)) + break; + + arizona->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(arizona->pdata.dmic_ref)) + break; + + arizona->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 }, + {}, +}; +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 *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 *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), + }, +}; + +int arizona_dev_init(struct arizona *arizona) +{ + struct device *dev = arizona->dev; + const char *type_name; + unsigned int reg, val; + 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: + 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 = gpio_request_one(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; + } + + if (arizona->pdata.reset) { + gpio_set_value_cansleep(arizona->pdata.reset, 1); + msleep(1); + } + + 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 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) { + regcache_mark_dirty(arizona->regmap); + + 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); + + ret = regcache_sync(arizona->regmap); + if (ret != 0) { + dev_err(dev, "Failed to sync device: %d\n", ret); + goto err_reset; + } + } + + /* Ensure device startup is complete */ + switch (arizona->type) { + case WM5102: + ret = regmap_read(arizona->regmap, + ARIZONA_WRITE_SEQUENCER_CTRL_3, &val); + if (ret != 0) + dev_err(dev, + "Failed to check write sequencer state: %d\n", + ret); + else if (val & 0x01) + break; + /* Fall through */ + default: + ret = arizona_wait_for_boot(arizona); + if (ret != 0) { + dev_err(arizona->dev, + "Device failed initial boot: %d\n", ret); + goto err_reset; + } + break; + } + + /* 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 + 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 = arizona_apply_hardware_patch(arizona); + if (ret != 0) { + dev_err(arizona->dev, + "Failed to apply hardware 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]); + } + + pm_runtime_set_autosuspend_delay(arizona->dev, 100); + pm_runtime_use_autosuspend(arizona->dev); + pm_runtime_enable(arizona->dev); + + /* 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; + val |= arizona->pdata.inmode[i] << ARIZONA_IN1_MODE_SHIFT; + + regmap_update_bits(arizona->regmap, + ARIZONA_IN1L_CONTROL + (i * 8), + ARIZONA_IN1_DMIC_SUP_MASK | + ARIZONA_IN1_MODE_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]); + } + + /* Set up for interrupts */ + ret = arizona_irq_init(arizona); + if (ret != 0) + goto err_reset; + + 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; + } + + if (ret != 0) { + dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret); + goto err_irq; + } + +#ifdef CONFIG_PM + regulator_disable(arizona->dcvdd); +#endif + + return 0; + +err_irq: + arizona_irq_exit(arizona); +err_reset: + if (arizona->pdata.reset) { + gpio_set_value_cansleep(arizona->pdata.reset, 0); + gpio_free(arizona->pdata.reset); + } + 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); + if (arizona->pdata.reset) + gpio_set_value_cansleep(arizona->pdata.reset, 0); + + regulator_bulk_disable(arizona->num_core_supplies, + arizona->core_supplies); + return 0; +} +EXPORT_SYMBOL_GPL(arizona_dev_exit); |