| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Arizona core driver |
| * |
| * Copyright 2012 Wolfson Microelectronics plc |
| * |
| * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> |
| */ |
| |
| #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); |