F: Documentation/hwmon/wm83??.rst
F: arch/arm/mach-s3c/mach-crag6410*
F: drivers/clk/clk-wm83*.c
-F: drivers/extcon/extcon-arizona.c
F: drivers/gpio/gpio-*wm*.c
F: drivers/gpio/gpio-arizona.c
F: drivers/hwmon/wm83??-hwmon.c
F: include/linux/regulator/arizona*
F: include/linux/wm97xx.h
F: include/sound/wm????.h
-F: sound/soc/codecs/arizona.?
+F: sound/soc/codecs/arizona*
F: sound/soc/codecs/cs47l24*
F: sound/soc/codecs/wm*
help
Say Y here to enable extcon device driver based on ADC values.
-config EXTCON_ARIZONA
- tristate "Wolfson Arizona EXTCON support"
- depends on MFD_ARIZONA && INPUT && SND_SOC
- help
- Say Y here to enable support for external accessory detection
- with Wolfson Arizona devices. These are audio CODECs with
- advanced audio accessory detection support.
-
config EXTCON_AXP288
tristate "X-Power AXP288 EXTCON support"
depends on MFD_AXP20X && USB_SUPPORT && X86 && ACPI
obj-$(CONFIG_EXTCON) += extcon-core.o
extcon-core-objs += extcon.o devres.o
obj-$(CONFIG_EXTCON_ADC_JACK) += extcon-adc-jack.o
-obj-$(CONFIG_EXTCON_ARIZONA) += extcon-arizona.o
obj-$(CONFIG_EXTCON_AXP288) += extcon-axp288.o
obj-$(CONFIG_EXTCON_FSA9480) += extcon-fsa9480.o
obj-$(CONFIG_EXTCON_GPIO) += extcon-gpio.o
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * extcon-arizona.c - Extcon driver Wolfson Arizona devices
- *
- * Copyright (C) 2012-2014 Wolfson Microelectronics plc
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/i2c.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/err.h>
-#include <linux/gpio/consumer.h>
-#include <linux/gpio.h>
-#include <linux/input.h>
-#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
-#include <linux/property.h>
-#include <linux/regulator/consumer.h>
-#include <linux/extcon-provider.h>
-
-#include <sound/soc.h>
-
-#include <linux/mfd/arizona/core.h>
-#include <linux/mfd/arizona/pdata.h>
-#include <linux/mfd/arizona/registers.h>
-#include <dt-bindings/mfd/arizona.h>
-
-#define ARIZONA_MAX_MICD_RANGE 8
-
-#define ARIZONA_MICD_CLAMP_MODE_JDL 0x4
-#define ARIZONA_MICD_CLAMP_MODE_JDH 0x5
-#define ARIZONA_MICD_CLAMP_MODE_JDL_GP5H 0x9
-#define ARIZONA_MICD_CLAMP_MODE_JDH_GP5H 0xb
-
-#define ARIZONA_TST_CAP_DEFAULT 0x3
-#define ARIZONA_TST_CAP_CLAMP 0x1
-
-#define ARIZONA_HPDET_MAX 10000
-
-#define HPDET_DEBOUNCE 500
-#define DEFAULT_MICD_TIMEOUT 2000
-
-#define ARIZONA_HPDET_WAIT_COUNT 15
-#define ARIZONA_HPDET_WAIT_DELAY_MS 20
-
-#define QUICK_HEADPHONE_MAX_OHM 3
-#define MICROPHONE_MIN_OHM 1257
-#define MICROPHONE_MAX_OHM 30000
-
-#define MICD_DBTIME_TWO_READINGS 2
-#define MICD_DBTIME_FOUR_READINGS 4
-
-#define MICD_LVL_1_TO_7 (ARIZONA_MICD_LVL_1 | ARIZONA_MICD_LVL_2 | \
- ARIZONA_MICD_LVL_3 | ARIZONA_MICD_LVL_4 | \
- ARIZONA_MICD_LVL_5 | ARIZONA_MICD_LVL_6 | \
- ARIZONA_MICD_LVL_7)
-
-#define MICD_LVL_0_TO_7 (ARIZONA_MICD_LVL_0 | MICD_LVL_1_TO_7)
-
-#define MICD_LVL_0_TO_8 (MICD_LVL_0_TO_7 | ARIZONA_MICD_LVL_8)
-
-struct arizona_extcon_info {
- struct device *dev;
- struct arizona *arizona;
- struct mutex lock;
- struct regulator *micvdd;
- struct input_dev *input;
-
- u16 last_jackdet;
-
- int micd_mode;
- const struct arizona_micd_config *micd_modes;
- int micd_num_modes;
-
- const struct arizona_micd_range *micd_ranges;
- int num_micd_ranges;
-
- bool micd_reva;
- bool micd_clamp;
-
- struct delayed_work hpdet_work;
- struct delayed_work micd_detect_work;
- struct delayed_work micd_timeout_work;
-
- bool hpdet_active;
- bool hpdet_done;
- bool hpdet_retried;
-
- int num_hpdet_res;
- unsigned int hpdet_res[3];
-
- bool mic;
- bool detecting;
- int jack_flips;
-
- int hpdet_ip_version;
-
- struct extcon_dev *edev;
-
- struct gpio_desc *micd_pol_gpio;
-};
-
-static const struct arizona_micd_config micd_default_modes[] = {
- { ARIZONA_ACCDET_SRC, 1, 0 },
- { 0, 2, 1 },
-};
-
-static const struct arizona_micd_range micd_default_ranges[] = {
- { .max = 11, .key = BTN_0 },
- { .max = 28, .key = BTN_1 },
- { .max = 54, .key = BTN_2 },
- { .max = 100, .key = BTN_3 },
- { .max = 186, .key = BTN_4 },
- { .max = 430, .key = BTN_5 },
-};
-
-/* The number of levels in arizona_micd_levels valid for button thresholds */
-#define ARIZONA_NUM_MICD_BUTTON_LEVELS 64
-
-static const int arizona_micd_levels[] = {
- 3, 6, 8, 11, 13, 16, 18, 21, 23, 26, 28, 31, 34, 36, 39, 41, 44, 46,
- 49, 52, 54, 57, 60, 62, 65, 67, 70, 73, 75, 78, 81, 83, 89, 94, 100,
- 105, 111, 116, 122, 127, 139, 150, 161, 173, 186, 196, 209, 220, 245,
- 270, 295, 321, 348, 375, 402, 430, 489, 550, 614, 681, 752, 903, 1071,
- 1257, 30000,
-};
-
-static const unsigned int arizona_cable[] = {
- EXTCON_MECHANICAL,
- EXTCON_JACK_MICROPHONE,
- EXTCON_JACK_HEADPHONE,
- EXTCON_JACK_LINE_OUT,
- EXTCON_NONE,
-};
-
-static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info);
-
-static void arizona_extcon_hp_clamp(struct arizona_extcon_info *info,
- bool clamp)
-{
- struct arizona *arizona = info->arizona;
- unsigned int mask = 0, val = 0;
- unsigned int cap_sel = 0;
- int ret;
-
- switch (arizona->type) {
- case WM8998:
- case WM1814:
- mask = 0;
- break;
- case WM5110:
- case WM8280:
- mask = ARIZONA_HP1L_SHRTO | ARIZONA_HP1L_FLWR |
- ARIZONA_HP1L_SHRTI;
- if (clamp) {
- val = ARIZONA_HP1L_SHRTO;
- cap_sel = ARIZONA_TST_CAP_CLAMP;
- } else {
- val = ARIZONA_HP1L_FLWR | ARIZONA_HP1L_SHRTI;
- cap_sel = ARIZONA_TST_CAP_DEFAULT;
- }
-
- ret = regmap_update_bits(arizona->regmap,
- ARIZONA_HP_TEST_CTRL_1,
- ARIZONA_HP1_TST_CAP_SEL_MASK,
- cap_sel);
- if (ret != 0)
- dev_warn(arizona->dev,
- "Failed to set TST_CAP_SEL: %d\n", ret);
- break;
- default:
- mask = ARIZONA_RMV_SHRT_HP1L;
- if (clamp)
- val = ARIZONA_RMV_SHRT_HP1L;
- break;
- }
-
- snd_soc_dapm_mutex_lock(arizona->dapm);
-
- arizona->hpdet_clamp = clamp;
-
- /* Keep the HP output stages disabled while doing the clamp */
- if (clamp) {
- ret = regmap_update_bits(arizona->regmap,
- ARIZONA_OUTPUT_ENABLES_1,
- ARIZONA_OUT1L_ENA |
- ARIZONA_OUT1R_ENA, 0);
- if (ret != 0)
- dev_warn(arizona->dev,
- "Failed to disable headphone outputs: %d\n",
- ret);
- }
-
- if (mask) {
- ret = regmap_update_bits(arizona->regmap, ARIZONA_HP_CTRL_1L,
- mask, val);
- if (ret != 0)
- dev_warn(arizona->dev, "Failed to do clamp: %d\n",
- ret);
-
- ret = regmap_update_bits(arizona->regmap, ARIZONA_HP_CTRL_1R,
- mask, val);
- if (ret != 0)
- dev_warn(arizona->dev, "Failed to do clamp: %d\n",
- ret);
- }
-
- /* Restore the desired state while not doing the clamp */
- if (!clamp) {
- ret = regmap_update_bits(arizona->regmap,
- ARIZONA_OUTPUT_ENABLES_1,
- ARIZONA_OUT1L_ENA |
- ARIZONA_OUT1R_ENA, arizona->hp_ena);
- if (ret != 0)
- dev_warn(arizona->dev,
- "Failed to restore headphone outputs: %d\n",
- ret);
- }
-
- snd_soc_dapm_mutex_unlock(arizona->dapm);
-}
-
-static void arizona_extcon_set_mode(struct arizona_extcon_info *info, int mode)
-{
- struct arizona *arizona = info->arizona;
-
- mode %= info->micd_num_modes;
-
- gpiod_set_value_cansleep(info->micd_pol_gpio,
- info->micd_modes[mode].gpio);
-
- regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
- ARIZONA_MICD_BIAS_SRC_MASK,
- info->micd_modes[mode].bias <<
- ARIZONA_MICD_BIAS_SRC_SHIFT);
- regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1,
- ARIZONA_ACCDET_SRC, info->micd_modes[mode].src);
-
- info->micd_mode = mode;
-
- dev_dbg(arizona->dev, "Set jack polarity to %d\n", mode);
-}
-
-static const char *arizona_extcon_get_micbias(struct arizona_extcon_info *info)
-{
- switch (info->micd_modes[0].bias) {
- case 1:
- return "MICBIAS1";
- case 2:
- return "MICBIAS2";
- case 3:
- return "MICBIAS3";
- default:
- return "MICVDD";
- }
-}
-
-static void arizona_extcon_pulse_micbias(struct arizona_extcon_info *info)
-{
- struct arizona *arizona = info->arizona;
- const char *widget = arizona_extcon_get_micbias(info);
- struct snd_soc_dapm_context *dapm = arizona->dapm;
- struct snd_soc_component *component = snd_soc_dapm_to_component(dapm);
- int ret;
-
- ret = snd_soc_component_force_enable_pin(component, widget);
- if (ret != 0)
- dev_warn(arizona->dev, "Failed to enable %s: %d\n",
- widget, ret);
-
- snd_soc_dapm_sync(dapm);
-
- if (!arizona->pdata.micd_force_micbias) {
- ret = snd_soc_component_disable_pin(component, widget);
- if (ret != 0)
- dev_warn(arizona->dev, "Failed to disable %s: %d\n",
- widget, ret);
-
- snd_soc_dapm_sync(dapm);
- }
-}
-
-static void arizona_start_mic(struct arizona_extcon_info *info)
-{
- struct arizona *arizona = info->arizona;
- bool change;
- int ret;
- unsigned int mode;
-
- /* Microphone detection can't use idle mode */
- pm_runtime_get_sync(info->dev);
-
- if (info->detecting) {
- ret = regulator_allow_bypass(info->micvdd, false);
- if (ret != 0) {
- dev_err(arizona->dev,
- "Failed to regulate MICVDD: %d\n",
- ret);
- }
- }
-
- ret = regulator_enable(info->micvdd);
- if (ret != 0) {
- dev_err(arizona->dev, "Failed to enable MICVDD: %d\n",
- ret);
- }
-
- if (info->micd_reva) {
- const struct reg_sequence reva[] = {
- { 0x80, 0x3 },
- { 0x294, 0x0 },
- { 0x80, 0x0 },
- };
-
- regmap_multi_reg_write(arizona->regmap, reva, ARRAY_SIZE(reva));
- }
-
- if (info->detecting && arizona->pdata.micd_software_compare)
- mode = ARIZONA_ACCDET_MODE_ADC;
- else
- mode = ARIZONA_ACCDET_MODE_MIC;
-
- regmap_update_bits(arizona->regmap,
- ARIZONA_ACCESSORY_DETECT_MODE_1,
- ARIZONA_ACCDET_MODE_MASK, mode);
-
- arizona_extcon_pulse_micbias(info);
-
- ret = regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1,
- ARIZONA_MICD_ENA, ARIZONA_MICD_ENA,
- &change);
- if (ret < 0) {
- dev_err(arizona->dev, "Failed to enable micd: %d\n", ret);
- } else if (!change) {
- regulator_disable(info->micvdd);
- pm_runtime_put_autosuspend(info->dev);
- }
-}
-
-static void arizona_stop_mic(struct arizona_extcon_info *info)
-{
- struct arizona *arizona = info->arizona;
- const char *widget = arizona_extcon_get_micbias(info);
- struct snd_soc_dapm_context *dapm = arizona->dapm;
- struct snd_soc_component *component = snd_soc_dapm_to_component(dapm);
- bool change = false;
- int ret;
-
- ret = regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1,
- ARIZONA_MICD_ENA, 0,
- &change);
- if (ret < 0)
- dev_err(arizona->dev, "Failed to disable micd: %d\n", ret);
-
- ret = snd_soc_component_disable_pin(component, widget);
- if (ret != 0)
- dev_warn(arizona->dev,
- "Failed to disable %s: %d\n",
- widget, ret);
-
- snd_soc_dapm_sync(dapm);
-
- if (info->micd_reva) {
- const struct reg_sequence reva[] = {
- { 0x80, 0x3 },
- { 0x294, 0x2 },
- { 0x80, 0x0 },
- };
-
- regmap_multi_reg_write(arizona->regmap, reva, ARRAY_SIZE(reva));
- }
-
- ret = regulator_allow_bypass(info->micvdd, true);
- if (ret != 0) {
- dev_err(arizona->dev, "Failed to bypass MICVDD: %d\n",
- ret);
- }
-
- if (change) {
- regulator_disable(info->micvdd);
- pm_runtime_mark_last_busy(info->dev);
- pm_runtime_put_autosuspend(info->dev);
- }
-}
-
-static struct {
- unsigned int threshold;
- unsigned int factor_a;
- unsigned int factor_b;
-} arizona_hpdet_b_ranges[] = {
- { 100, 5528, 362464 },
- { 169, 11084, 6186851 },
- { 169, 11065, 65460395 },
-};
-
-#define ARIZONA_HPDET_B_RANGE_MAX 0x3fb
-
-static struct {
- int min;
- int max;
-} arizona_hpdet_c_ranges[] = {
- { 0, 30 },
- { 8, 100 },
- { 100, 1000 },
- { 1000, 10000 },
-};
-
-static int arizona_hpdet_read(struct arizona_extcon_info *info)
-{
- struct arizona *arizona = info->arizona;
- unsigned int val, range;
- int ret;
-
- ret = regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_2, &val);
- if (ret != 0) {
- dev_err(arizona->dev, "Failed to read HPDET status: %d\n",
- ret);
- return ret;
- }
-
- switch (info->hpdet_ip_version) {
- case 0:
- if (!(val & ARIZONA_HP_DONE)) {
- dev_err(arizona->dev, "HPDET did not complete: %x\n",
- val);
- return -EAGAIN;
- }
-
- val &= ARIZONA_HP_LVL_MASK;
- break;
-
- case 1:
- if (!(val & ARIZONA_HP_DONE_B)) {
- dev_err(arizona->dev, "HPDET did not complete: %x\n",
- val);
- return -EAGAIN;
- }
-
- ret = regmap_read(arizona->regmap, ARIZONA_HP_DACVAL, &val);
- if (ret != 0) {
- dev_err(arizona->dev, "Failed to read HP value: %d\n",
- ret);
- return -EAGAIN;
- }
-
- regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1,
- &range);
- range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK)
- >> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT;
-
- if (range < ARRAY_SIZE(arizona_hpdet_b_ranges) - 1 &&
- (val < arizona_hpdet_b_ranges[range].threshold ||
- val >= ARIZONA_HPDET_B_RANGE_MAX)) {
- range++;
- dev_dbg(arizona->dev, "Moving to HPDET range %d\n",
- range);
- regmap_update_bits(arizona->regmap,
- ARIZONA_HEADPHONE_DETECT_1,
- ARIZONA_HP_IMPEDANCE_RANGE_MASK,
- range <<
- ARIZONA_HP_IMPEDANCE_RANGE_SHIFT);
- return -EAGAIN;
- }
-
- /* If we go out of range report top of range */
- if (val < arizona_hpdet_b_ranges[range].threshold ||
- val >= ARIZONA_HPDET_B_RANGE_MAX) {
- dev_dbg(arizona->dev, "Measurement out of range\n");
- return ARIZONA_HPDET_MAX;
- }
-
- dev_dbg(arizona->dev, "HPDET read %d in range %d\n",
- val, range);
-
- val = arizona_hpdet_b_ranges[range].factor_b
- / ((val * 100) -
- arizona_hpdet_b_ranges[range].factor_a);
- break;
-
- case 2:
- if (!(val & ARIZONA_HP_DONE_B)) {
- dev_err(arizona->dev, "HPDET did not complete: %x\n",
- val);
- return -EAGAIN;
- }
-
- val &= ARIZONA_HP_LVL_B_MASK;
- /* Convert to ohms, the value is in 0.5 ohm increments */
- val /= 2;
-
- regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1,
- &range);
- range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK)
- >> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT;
-
- /* Skip up a range, or report? */
- if (range < ARRAY_SIZE(arizona_hpdet_c_ranges) - 1 &&
- (val >= arizona_hpdet_c_ranges[range].max)) {
- range++;
- dev_dbg(arizona->dev, "Moving to HPDET range %d-%d\n",
- arizona_hpdet_c_ranges[range].min,
- arizona_hpdet_c_ranges[range].max);
- regmap_update_bits(arizona->regmap,
- ARIZONA_HEADPHONE_DETECT_1,
- ARIZONA_HP_IMPEDANCE_RANGE_MASK,
- range <<
- ARIZONA_HP_IMPEDANCE_RANGE_SHIFT);
- return -EAGAIN;
- }
-
- if (range && (val < arizona_hpdet_c_ranges[range].min)) {
- dev_dbg(arizona->dev, "Reporting range boundary %d\n",
- arizona_hpdet_c_ranges[range].min);
- val = arizona_hpdet_c_ranges[range].min;
- }
- break;
-
- default:
- dev_warn(arizona->dev, "Unknown HPDET IP revision %d\n",
- info->hpdet_ip_version);
- return -EINVAL;
- }
-
- dev_dbg(arizona->dev, "HP impedance %d ohms\n", val);
- return val;
-}
-
-static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading,
- bool *mic)
-{
- struct arizona *arizona = info->arizona;
- int id_gpio = arizona->pdata.hpdet_id_gpio;
-
- if (!arizona->pdata.hpdet_acc_id)
- return 0;
-
- /*
- * If we're using HPDET for accessory identification we need
- * to take multiple measurements, step through them in sequence.
- */
- info->hpdet_res[info->num_hpdet_res++] = *reading;
-
- /* Only check the mic directly if we didn't already ID it */
- if (id_gpio && info->num_hpdet_res == 1) {
- dev_dbg(arizona->dev, "Measuring mic\n");
-
- regmap_update_bits(arizona->regmap,
- ARIZONA_ACCESSORY_DETECT_MODE_1,
- ARIZONA_ACCDET_MODE_MASK |
- ARIZONA_ACCDET_SRC,
- ARIZONA_ACCDET_MODE_HPR |
- info->micd_modes[0].src);
-
- gpio_set_value_cansleep(id_gpio, 1);
-
- regmap_update_bits(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1,
- ARIZONA_HP_POLL, ARIZONA_HP_POLL);
- return -EAGAIN;
- }
-
- /* OK, got both. Now, compare... */
- dev_dbg(arizona->dev, "HPDET measured %d %d\n",
- info->hpdet_res[0], info->hpdet_res[1]);
-
- /* Take the headphone impedance for the main report */
- *reading = info->hpdet_res[0];
-
- /* Sometimes we get false readings due to slow insert */
- if (*reading >= ARIZONA_HPDET_MAX && !info->hpdet_retried) {
- dev_dbg(arizona->dev, "Retrying high impedance\n");
- info->num_hpdet_res = 0;
- info->hpdet_retried = true;
- arizona_start_hpdet_acc_id(info);
- pm_runtime_put(info->dev);
- return -EAGAIN;
- }
-
- /*
- * If we measure the mic as high impedance
- */
- if (!id_gpio || info->hpdet_res[1] > 50) {
- dev_dbg(arizona->dev, "Detected mic\n");
- *mic = true;
- info->detecting = true;
- } else {
- dev_dbg(arizona->dev, "Detected headphone\n");
- }
-
- /* Make sure everything is reset back to the real polarity */
- regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1,
- ARIZONA_ACCDET_SRC, info->micd_modes[0].src);
-
- return 0;
-}
-
-static irqreturn_t arizona_hpdet_irq(int irq, void *data)
-{
- struct arizona_extcon_info *info = data;
- struct arizona *arizona = info->arizona;
- int id_gpio = arizona->pdata.hpdet_id_gpio;
- unsigned int report = EXTCON_JACK_HEADPHONE;
- int ret, reading, state;
- bool mic = false;
-
- mutex_lock(&info->lock);
-
- /* If we got a spurious IRQ for some reason then ignore it */
- if (!info->hpdet_active) {
- dev_warn(arizona->dev, "Spurious HPDET IRQ\n");
- mutex_unlock(&info->lock);
- return IRQ_NONE;
- }
-
- /* If the cable was removed while measuring ignore the result */
- state = extcon_get_state(info->edev, EXTCON_MECHANICAL);
- if (state < 0) {
- dev_err(arizona->dev, "Failed to check cable state: %d\n", state);
- goto out;
- } else if (!state) {
- dev_dbg(arizona->dev, "Ignoring HPDET for removed cable\n");
- goto done;
- }
-
- ret = arizona_hpdet_read(info);
- if (ret == -EAGAIN)
- goto out;
- else if (ret < 0)
- goto done;
- reading = ret;
-
- /* Reset back to starting range */
- regmap_update_bits(arizona->regmap,
- ARIZONA_HEADPHONE_DETECT_1,
- ARIZONA_HP_IMPEDANCE_RANGE_MASK | ARIZONA_HP_POLL,
- 0);
-
- ret = arizona_hpdet_do_id(info, &reading, &mic);
- if (ret == -EAGAIN)
- goto out;
- else if (ret < 0)
- goto done;
-
- /* Report high impedence cables as line outputs */
- if (reading >= 5000)
- report = EXTCON_JACK_LINE_OUT;
- else
- report = EXTCON_JACK_HEADPHONE;
-
- ret = extcon_set_state_sync(info->edev, report, true);
- if (ret != 0)
- dev_err(arizona->dev, "Failed to report HP/line: %d\n",
- ret);
-
-done:
- /* Reset back to starting range */
- regmap_update_bits(arizona->regmap,
- ARIZONA_HEADPHONE_DETECT_1,
- ARIZONA_HP_IMPEDANCE_RANGE_MASK | ARIZONA_HP_POLL,
- 0);
-
- arizona_extcon_hp_clamp(info, false);
-
- if (id_gpio)
- gpio_set_value_cansleep(id_gpio, 0);
-
- /* If we have a mic then reenable MICDET */
- if (state && (mic || info->mic))
- arizona_start_mic(info);
-
- if (info->hpdet_active) {
- pm_runtime_put_autosuspend(info->dev);
- info->hpdet_active = false;
- }
-
- /* Do not set hp_det done when the cable has been unplugged */
- if (state)
- info->hpdet_done = true;
-
-out:
- mutex_unlock(&info->lock);
-
- return IRQ_HANDLED;
-}
-
-static void arizona_identify_headphone(struct arizona_extcon_info *info)
-{
- struct arizona *arizona = info->arizona;
- int ret;
-
- if (info->hpdet_done)
- return;
-
- dev_dbg(arizona->dev, "Starting HPDET\n");
-
- /* Make sure we keep the device enabled during the measurement */
- pm_runtime_get_sync(info->dev);
-
- info->hpdet_active = true;
-
- arizona_stop_mic(info);
-
- arizona_extcon_hp_clamp(info, true);
-
- ret = regmap_update_bits(arizona->regmap,
- ARIZONA_ACCESSORY_DETECT_MODE_1,
- ARIZONA_ACCDET_MODE_MASK,
- arizona->pdata.hpdet_channel);
- if (ret != 0) {
- dev_err(arizona->dev, "Failed to set HPDET mode: %d\n", ret);
- goto err;
- }
-
- ret = regmap_update_bits(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1,
- ARIZONA_HP_POLL, ARIZONA_HP_POLL);
- if (ret != 0) {
- dev_err(arizona->dev, "Can't start HPDETL measurement: %d\n",
- ret);
- goto err;
- }
-
- return;
-
-err:
- arizona_extcon_hp_clamp(info, false);
- pm_runtime_put_autosuspend(info->dev);
-
- /* Just report headphone */
- ret = extcon_set_state_sync(info->edev, EXTCON_JACK_HEADPHONE, true);
- if (ret != 0)
- dev_err(arizona->dev, "Failed to report headphone: %d\n", ret);
-
- if (info->mic)
- arizona_start_mic(info);
-
- info->hpdet_active = false;
-}
-
-static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info)
-{
- struct arizona *arizona = info->arizona;
- int hp_reading = 32;
- bool mic;
- int ret;
-
- dev_dbg(arizona->dev, "Starting identification via HPDET\n");
-
- /* Make sure we keep the device enabled during the measurement */
- pm_runtime_get_sync(info->dev);
-
- info->hpdet_active = true;
-
- arizona_extcon_hp_clamp(info, true);
-
- ret = regmap_update_bits(arizona->regmap,
- ARIZONA_ACCESSORY_DETECT_MODE_1,
- ARIZONA_ACCDET_SRC | ARIZONA_ACCDET_MODE_MASK,
- info->micd_modes[0].src |
- arizona->pdata.hpdet_channel);
- if (ret != 0) {
- dev_err(arizona->dev, "Failed to set HPDET mode: %d\n", ret);
- goto err;
- }
-
- if (arizona->pdata.hpdet_acc_id_line) {
- ret = regmap_update_bits(arizona->regmap,
- ARIZONA_HEADPHONE_DETECT_1,
- ARIZONA_HP_POLL, ARIZONA_HP_POLL);
- if (ret != 0) {
- dev_err(arizona->dev,
- "Can't start HPDETL measurement: %d\n",
- ret);
- goto err;
- }
- } else {
- arizona_hpdet_do_id(info, &hp_reading, &mic);
- }
-
- return;
-
-err:
- /* Just report headphone */
- ret = extcon_set_state_sync(info->edev, EXTCON_JACK_HEADPHONE, true);
- if (ret != 0)
- dev_err(arizona->dev, "Failed to report headphone: %d\n", ret);
-
- info->hpdet_active = false;
-}
-
-static void arizona_micd_timeout_work(struct work_struct *work)
-{
- struct arizona_extcon_info *info = container_of(work,
- struct arizona_extcon_info,
- micd_timeout_work.work);
-
- mutex_lock(&info->lock);
-
- dev_dbg(info->arizona->dev, "MICD timed out, reporting HP\n");
-
- info->detecting = false;
-
- arizona_identify_headphone(info);
-
- mutex_unlock(&info->lock);
-}
-
-static int arizona_micd_adc_read(struct arizona_extcon_info *info)
-{
- struct arizona *arizona = info->arizona;
- unsigned int val;
- int ret;
-
- /* Must disable MICD before we read the ADCVAL */
- regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
- ARIZONA_MICD_ENA, 0);
-
- ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_4, &val);
- if (ret != 0) {
- dev_err(arizona->dev,
- "Failed to read MICDET_ADCVAL: %d\n", ret);
- return ret;
- }
-
- dev_dbg(arizona->dev, "MICDET_ADCVAL: %x\n", val);
-
- val &= ARIZONA_MICDET_ADCVAL_MASK;
- if (val < ARRAY_SIZE(arizona_micd_levels))
- val = arizona_micd_levels[val];
- else
- val = INT_MAX;
-
- if (val <= QUICK_HEADPHONE_MAX_OHM)
- val = ARIZONA_MICD_STS | ARIZONA_MICD_LVL_0;
- else if (val <= MICROPHONE_MIN_OHM)
- val = ARIZONA_MICD_STS | ARIZONA_MICD_LVL_1;
- else if (val <= MICROPHONE_MAX_OHM)
- val = ARIZONA_MICD_STS | ARIZONA_MICD_LVL_8;
- else
- val = ARIZONA_MICD_LVL_8;
-
- return val;
-}
-
-static int arizona_micd_read(struct arizona_extcon_info *info)
-{
- struct arizona *arizona = info->arizona;
- unsigned int val = 0;
- int ret, i;
-
- for (i = 0; i < 10 && !(val & MICD_LVL_0_TO_8); i++) {
- ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_3, &val);
- if (ret != 0) {
- dev_err(arizona->dev,
- "Failed to read MICDET: %d\n", ret);
- return ret;
- }
-
- dev_dbg(arizona->dev, "MICDET: %x\n", val);
-
- if (!(val & ARIZONA_MICD_VALID)) {
- dev_warn(arizona->dev,
- "Microphone detection state invalid\n");
- return -EINVAL;
- }
- }
-
- if (i == 10 && !(val & MICD_LVL_0_TO_8)) {
- dev_err(arizona->dev, "Failed to get valid MICDET value\n");
- return -EINVAL;
- }
-
- return val;
-}
-
-static int arizona_micdet_reading(void *priv)
-{
- struct arizona_extcon_info *info = priv;
- struct arizona *arizona = info->arizona;
- int ret, val;
-
- if (info->detecting && arizona->pdata.micd_software_compare)
- ret = arizona_micd_adc_read(info);
- else
- ret = arizona_micd_read(info);
- if (ret < 0)
- return ret;
-
- val = ret;
-
- /* Due to jack detect this should never happen */
- if (!(val & ARIZONA_MICD_STS)) {
- dev_warn(arizona->dev, "Detected open circuit\n");
- info->mic = false;
- info->detecting = false;
- arizona_identify_headphone(info);
- return 0;
- }
-
- /* If we got a high impedence we should have a headset, report it. */
- if (val & ARIZONA_MICD_LVL_8) {
- info->mic = true;
- info->detecting = false;
-
- arizona_identify_headphone(info);
-
- ret = extcon_set_state_sync(info->edev,
- EXTCON_JACK_MICROPHONE, true);
- if (ret != 0)
- dev_err(arizona->dev, "Headset report failed: %d\n",
- ret);
-
- /* Don't need to regulate for button detection */
- ret = regulator_allow_bypass(info->micvdd, true);
- if (ret != 0) {
- dev_err(arizona->dev, "Failed to bypass MICVDD: %d\n",
- ret);
- }
-
- return 0;
- }
-
- /* If we detected a lower impedence during initial startup
- * then we probably have the wrong polarity, flip it. Don't
- * do this for the lowest impedences to speed up detection of
- * plain headphones. If both polarities report a low
- * impedence then give up and report headphones.
- */
- if (val & MICD_LVL_1_TO_7) {
- if (info->jack_flips >= info->micd_num_modes * 10) {
- dev_dbg(arizona->dev, "Detected HP/line\n");
-
- info->detecting = false;
-
- arizona_identify_headphone(info);
- } else {
- info->micd_mode++;
- if (info->micd_mode == info->micd_num_modes)
- info->micd_mode = 0;
- arizona_extcon_set_mode(info, info->micd_mode);
-
- info->jack_flips++;
-
- if (arizona->pdata.micd_software_compare)
- regmap_update_bits(arizona->regmap,
- ARIZONA_MIC_DETECT_1,
- ARIZONA_MICD_ENA,
- ARIZONA_MICD_ENA);
-
- queue_delayed_work(system_power_efficient_wq,
- &info->micd_timeout_work,
- msecs_to_jiffies(arizona->pdata.micd_timeout));
- }
-
- return 0;
- }
-
- /*
- * If we're still detecting and we detect a short then we've
- * got a headphone.
- */
- dev_dbg(arizona->dev, "Headphone detected\n");
- info->detecting = false;
-
- arizona_identify_headphone(info);
-
- return 0;
-}
-
-static int arizona_button_reading(void *priv)
-{
- struct arizona_extcon_info *info = priv;
- struct arizona *arizona = info->arizona;
- int val, key, lvl, i;
-
- val = arizona_micd_read(info);
- if (val < 0)
- return val;
-
- /*
- * If we're still detecting and we detect a short then we've
- * got a headphone. Otherwise it's a button press.
- */
- if (val & MICD_LVL_0_TO_7) {
- if (info->mic) {
- dev_dbg(arizona->dev, "Mic button detected\n");
-
- lvl = val & ARIZONA_MICD_LVL_MASK;
- lvl >>= ARIZONA_MICD_LVL_SHIFT;
-
- for (i = 0; i < info->num_micd_ranges; i++)
- input_report_key(info->input,
- info->micd_ranges[i].key, 0);
-
- if (lvl && ffs(lvl) - 1 < info->num_micd_ranges) {
- key = info->micd_ranges[ffs(lvl) - 1].key;
- input_report_key(info->input, key, 1);
- input_sync(info->input);
- } else {
- dev_err(arizona->dev, "Button out of range\n");
- }
- } else {
- dev_warn(arizona->dev, "Button with no mic: %x\n",
- val);
- }
- } else {
- dev_dbg(arizona->dev, "Mic button released\n");
- for (i = 0; i < info->num_micd_ranges; i++)
- input_report_key(info->input,
- info->micd_ranges[i].key, 0);
- input_sync(info->input);
- arizona_extcon_pulse_micbias(info);
- }
-
- return 0;
-}
-
-static void arizona_micd_detect(struct work_struct *work)
-{
- struct arizona_extcon_info *info = container_of(work,
- struct arizona_extcon_info,
- micd_detect_work.work);
- struct arizona *arizona = info->arizona;
- int ret;
-
- cancel_delayed_work_sync(&info->micd_timeout_work);
-
- mutex_lock(&info->lock);
-
- /* If the cable was removed while measuring ignore the result */
- ret = extcon_get_state(info->edev, EXTCON_MECHANICAL);
- if (ret < 0) {
- dev_err(arizona->dev, "Failed to check cable state: %d\n",
- ret);
- mutex_unlock(&info->lock);
- return;
- } else if (!ret) {
- dev_dbg(arizona->dev, "Ignoring MICDET for removed cable\n");
- mutex_unlock(&info->lock);
- return;
- }
-
- if (info->detecting)
- arizona_micdet_reading(info);
- else
- arizona_button_reading(info);
-
- pm_runtime_mark_last_busy(info->dev);
- mutex_unlock(&info->lock);
-}
-
-static irqreturn_t arizona_micdet(int irq, void *data)
-{
- struct arizona_extcon_info *info = data;
- struct arizona *arizona = info->arizona;
- int debounce = arizona->pdata.micd_detect_debounce;
-
- cancel_delayed_work_sync(&info->micd_detect_work);
- cancel_delayed_work_sync(&info->micd_timeout_work);
-
- mutex_lock(&info->lock);
- if (!info->detecting)
- debounce = 0;
- mutex_unlock(&info->lock);
-
- if (debounce)
- queue_delayed_work(system_power_efficient_wq,
- &info->micd_detect_work,
- msecs_to_jiffies(debounce));
- else
- arizona_micd_detect(&info->micd_detect_work.work);
-
- return IRQ_HANDLED;
-}
-
-static void arizona_hpdet_work(struct work_struct *work)
-{
- struct arizona_extcon_info *info = container_of(work,
- struct arizona_extcon_info,
- hpdet_work.work);
-
- mutex_lock(&info->lock);
- arizona_start_hpdet_acc_id(info);
- mutex_unlock(&info->lock);
-}
-
-static int arizona_hpdet_wait(struct arizona_extcon_info *info)
-{
- struct arizona *arizona = info->arizona;
- unsigned int val;
- int i, ret;
-
- for (i = 0; i < ARIZONA_HPDET_WAIT_COUNT; i++) {
- ret = regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_2,
- &val);
- if (ret) {
- dev_err(arizona->dev,
- "Failed to read HPDET state: %d\n", ret);
- return ret;
- }
-
- switch (info->hpdet_ip_version) {
- case 0:
- if (val & ARIZONA_HP_DONE)
- return 0;
- break;
- default:
- if (val & ARIZONA_HP_DONE_B)
- return 0;
- break;
- }
-
- msleep(ARIZONA_HPDET_WAIT_DELAY_MS);
- }
-
- dev_warn(arizona->dev, "HPDET did not appear to complete\n");
-
- return -ETIMEDOUT;
-}
-
-static irqreturn_t arizona_jackdet(int irq, void *data)
-{
- struct arizona_extcon_info *info = data;
- struct arizona *arizona = info->arizona;
- unsigned int val, present, mask;
- bool cancelled_hp, cancelled_mic;
- int ret, i;
-
- cancelled_hp = cancel_delayed_work_sync(&info->hpdet_work);
- cancelled_mic = cancel_delayed_work_sync(&info->micd_timeout_work);
-
- pm_runtime_get_sync(info->dev);
-
- mutex_lock(&info->lock);
-
- if (info->micd_clamp) {
- mask = ARIZONA_MICD_CLAMP_STS;
- present = 0;
- } else {
- mask = ARIZONA_JD1_STS;
- if (arizona->pdata.jd_invert)
- present = 0;
- else
- present = ARIZONA_JD1_STS;
- }
-
- ret = regmap_read(arizona->regmap, ARIZONA_AOD_IRQ_RAW_STATUS, &val);
- if (ret != 0) {
- dev_err(arizona->dev, "Failed to read jackdet status: %d\n",
- ret);
- mutex_unlock(&info->lock);
- pm_runtime_put_autosuspend(info->dev);
- return IRQ_NONE;
- }
-
- val &= mask;
- if (val == info->last_jackdet) {
- dev_dbg(arizona->dev, "Suppressing duplicate JACKDET\n");
- if (cancelled_hp)
- queue_delayed_work(system_power_efficient_wq,
- &info->hpdet_work,
- msecs_to_jiffies(HPDET_DEBOUNCE));
-
- if (cancelled_mic) {
- int micd_timeout = arizona->pdata.micd_timeout;
-
- queue_delayed_work(system_power_efficient_wq,
- &info->micd_timeout_work,
- msecs_to_jiffies(micd_timeout));
- }
-
- goto out;
- }
- info->last_jackdet = val;
-
- if (info->last_jackdet == present) {
- dev_dbg(arizona->dev, "Detected jack\n");
- ret = extcon_set_state_sync(info->edev,
- EXTCON_MECHANICAL, true);
-
- if (ret != 0)
- dev_err(arizona->dev, "Mechanical report failed: %d\n",
- ret);
-
- info->detecting = true;
- info->mic = false;
- info->jack_flips = 0;
-
- if (!arizona->pdata.hpdet_acc_id) {
- arizona_start_mic(info);
- } else {
- queue_delayed_work(system_power_efficient_wq,
- &info->hpdet_work,
- msecs_to_jiffies(HPDET_DEBOUNCE));
- }
-
- if (info->micd_clamp || !arizona->pdata.jd_invert)
- regmap_update_bits(arizona->regmap,
- ARIZONA_JACK_DETECT_DEBOUNCE,
- ARIZONA_MICD_CLAMP_DB |
- ARIZONA_JD1_DB, 0);
- } else {
- dev_dbg(arizona->dev, "Detected jack removal\n");
-
- arizona_stop_mic(info);
-
- info->num_hpdet_res = 0;
- for (i = 0; i < ARRAY_SIZE(info->hpdet_res); i++)
- info->hpdet_res[i] = 0;
- info->mic = false;
- info->hpdet_done = false;
- info->hpdet_retried = false;
-
- for (i = 0; i < info->num_micd_ranges; i++)
- input_report_key(info->input,
- info->micd_ranges[i].key, 0);
- input_sync(info->input);
-
- for (i = 0; i < ARRAY_SIZE(arizona_cable) - 1; i++) {
- ret = extcon_set_state_sync(info->edev,
- arizona_cable[i], false);
- if (ret != 0)
- dev_err(arizona->dev,
- "Removal report failed: %d\n", ret);
- }
-
- /*
- * If the jack was removed during a headphone detection we
- * need to wait for the headphone detection to finish, as
- * it can not be aborted. We don't want to be able to start
- * a new headphone detection from a fresh insert until this
- * one is finished.
- */
- arizona_hpdet_wait(info);
-
- regmap_update_bits(arizona->regmap,
- ARIZONA_JACK_DETECT_DEBOUNCE,
- ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB,
- ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB);
- }
-
-out:
- /* Clear trig_sts to make sure DCVDD is not forced up */
- regmap_write(arizona->regmap, ARIZONA_AOD_WKUP_AND_TRIG,
- ARIZONA_MICD_CLAMP_FALL_TRIG_STS |
- ARIZONA_MICD_CLAMP_RISE_TRIG_STS |
- ARIZONA_JD1_FALL_TRIG_STS |
- ARIZONA_JD1_RISE_TRIG_STS);
-
- mutex_unlock(&info->lock);
-
- pm_runtime_mark_last_busy(info->dev);
- pm_runtime_put_autosuspend(info->dev);
-
- return IRQ_HANDLED;
-}
-
-/* Map a level onto a slot in the register bank */
-static void arizona_micd_set_level(struct arizona *arizona, int index,
- unsigned int level)
-{
- int reg;
- unsigned int mask;
-
- reg = ARIZONA_MIC_DETECT_LEVEL_4 - (index / 2);
-
- if (!(index % 2)) {
- mask = 0x3f00;
- level <<= 8;
- } else {
- mask = 0x3f;
- }
-
- /* Program the level itself */
- regmap_update_bits(arizona->regmap, reg, mask, level);
-}
-
-static int arizona_extcon_get_micd_configs(struct device *dev,
- struct arizona *arizona)
-{
- const char * const prop = "wlf,micd-configs";
- const int entries_per_config = 3;
- struct arizona_micd_config *micd_configs;
- int nconfs, ret;
- int i, j;
- u32 *vals;
-
- nconfs = device_property_count_u32(arizona->dev, prop);
- if (nconfs <= 0)
- return 0;
-
- vals = kcalloc(nconfs, sizeof(u32), GFP_KERNEL);
- if (!vals)
- return -ENOMEM;
-
- ret = device_property_read_u32_array(arizona->dev, prop, vals, nconfs);
- if (ret < 0)
- goto out;
-
- nconfs /= entries_per_config;
- micd_configs = devm_kcalloc(dev, nconfs, sizeof(*micd_configs),
- GFP_KERNEL);
- if (!micd_configs) {
- ret = -ENOMEM;
- goto out;
- }
-
- for (i = 0, j = 0; i < nconfs; ++i) {
- micd_configs[i].src = vals[j++] ? ARIZONA_ACCDET_SRC : 0;
- micd_configs[i].bias = vals[j++];
- micd_configs[i].gpio = vals[j++];
- }
-
- arizona->pdata.micd_configs = micd_configs;
- arizona->pdata.num_micd_configs = nconfs;
-
-out:
- kfree(vals);
- return ret;
-}
-
-static int arizona_extcon_device_get_pdata(struct device *dev,
- struct arizona *arizona)
-{
- struct arizona_pdata *pdata = &arizona->pdata;
- unsigned int val = ARIZONA_ACCDET_MODE_HPL;
- int ret;
-
- device_property_read_u32(arizona->dev, "wlf,hpdet-channel", &val);
- switch (val) {
- case ARIZONA_ACCDET_MODE_HPL:
- case ARIZONA_ACCDET_MODE_HPR:
- pdata->hpdet_channel = val;
- break;
- default:
- dev_err(arizona->dev,
- "Wrong wlf,hpdet-channel DT value %d\n", val);
- pdata->hpdet_channel = ARIZONA_ACCDET_MODE_HPL;
- }
-
- device_property_read_u32(arizona->dev, "wlf,micd-detect-debounce",
- &pdata->micd_detect_debounce);
-
- device_property_read_u32(arizona->dev, "wlf,micd-bias-start-time",
- &pdata->micd_bias_start_time);
-
- device_property_read_u32(arizona->dev, "wlf,micd-rate",
- &pdata->micd_rate);
-
- device_property_read_u32(arizona->dev, "wlf,micd-dbtime",
- &pdata->micd_dbtime);
-
- device_property_read_u32(arizona->dev, "wlf,micd-timeout-ms",
- &pdata->micd_timeout);
-
- pdata->micd_force_micbias = device_property_read_bool(arizona->dev,
- "wlf,micd-force-micbias");
-
- pdata->micd_software_compare = device_property_read_bool(arizona->dev,
- "wlf,micd-software-compare");
-
- pdata->jd_invert = device_property_read_bool(arizona->dev,
- "wlf,jd-invert");
-
- device_property_read_u32(arizona->dev, "wlf,gpsw", &pdata->gpsw);
-
- pdata->jd_gpio5 = device_property_read_bool(arizona->dev,
- "wlf,use-jd2");
- pdata->jd_gpio5_nopull = device_property_read_bool(arizona->dev,
- "wlf,use-jd2-nopull");
-
- ret = arizona_extcon_get_micd_configs(dev, arizona);
- if (ret < 0)
- dev_err(arizona->dev, "Failed to read micd configs: %d\n", ret);
-
- return 0;
-}
-
-static int arizona_extcon_probe(struct platform_device *pdev)
-{
- struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
- struct arizona_pdata *pdata = &arizona->pdata;
- struct arizona_extcon_info *info;
- unsigned int val;
- unsigned int clamp_mode;
- int jack_irq_fall, jack_irq_rise;
- int ret, mode, i, j;
-
- if (!arizona->dapm || !arizona->dapm->card)
- return -EPROBE_DEFER;
-
- info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
- if (!info)
- return -ENOMEM;
-
- if (!dev_get_platdata(arizona->dev))
- arizona_extcon_device_get_pdata(&pdev->dev, arizona);
-
- info->micvdd = devm_regulator_get(&pdev->dev, "MICVDD");
- if (IS_ERR(info->micvdd)) {
- ret = PTR_ERR(info->micvdd);
- dev_err(arizona->dev, "Failed to get MICVDD: %d\n", ret);
- return ret;
- }
-
- mutex_init(&info->lock);
- info->arizona = arizona;
- info->dev = &pdev->dev;
- info->last_jackdet = ~(ARIZONA_MICD_CLAMP_STS | ARIZONA_JD1_STS);
- INIT_DELAYED_WORK(&info->hpdet_work, arizona_hpdet_work);
- INIT_DELAYED_WORK(&info->micd_detect_work, arizona_micd_detect);
- INIT_DELAYED_WORK(&info->micd_timeout_work, arizona_micd_timeout_work);
- platform_set_drvdata(pdev, info);
-
- switch (arizona->type) {
- case WM5102:
- switch (arizona->rev) {
- case 0:
- info->micd_reva = true;
- break;
- default:
- info->micd_clamp = true;
- info->hpdet_ip_version = 1;
- break;
- }
- break;
- case WM5110:
- case WM8280:
- switch (arizona->rev) {
- case 0 ... 2:
- break;
- default:
- info->micd_clamp = true;
- info->hpdet_ip_version = 2;
- break;
- }
- break;
- case WM8998:
- case WM1814:
- info->micd_clamp = true;
- info->hpdet_ip_version = 2;
- break;
- default:
- break;
- }
-
- info->edev = devm_extcon_dev_allocate(&pdev->dev, arizona_cable);
- if (IS_ERR(info->edev)) {
- dev_err(&pdev->dev, "failed to allocate extcon device\n");
- return -ENOMEM;
- }
-
- ret = devm_extcon_dev_register(&pdev->dev, info->edev);
- if (ret < 0) {
- dev_err(arizona->dev, "extcon_dev_register() failed: %d\n",
- ret);
- return ret;
- }
-
- info->input = devm_input_allocate_device(&pdev->dev);
- if (!info->input) {
- dev_err(arizona->dev, "Can't allocate input dev\n");
- ret = -ENOMEM;
- return ret;
- }
-
- info->input->name = "Headset";
- info->input->phys = "arizona/extcon";
-
- if (!pdata->micd_timeout)
- pdata->micd_timeout = DEFAULT_MICD_TIMEOUT;
-
- if (pdata->num_micd_configs) {
- info->micd_modes = pdata->micd_configs;
- info->micd_num_modes = pdata->num_micd_configs;
- } else {
- info->micd_modes = micd_default_modes;
- info->micd_num_modes = ARRAY_SIZE(micd_default_modes);
- }
-
- if (arizona->pdata.gpsw > 0)
- regmap_update_bits(arizona->regmap, ARIZONA_GP_SWITCH_1,
- ARIZONA_SW1_MODE_MASK, arizona->pdata.gpsw);
-
- if (pdata->micd_pol_gpio > 0) {
- if (info->micd_modes[0].gpio)
- mode = GPIOF_OUT_INIT_HIGH;
- else
- mode = GPIOF_OUT_INIT_LOW;
-
- ret = devm_gpio_request_one(&pdev->dev, pdata->micd_pol_gpio,
- mode, "MICD polarity");
- if (ret != 0) {
- dev_err(arizona->dev, "Failed to request GPIO%d: %d\n",
- pdata->micd_pol_gpio, ret);
- return ret;
- }
-
- info->micd_pol_gpio = gpio_to_desc(pdata->micd_pol_gpio);
- } else {
- if (info->micd_modes[0].gpio)
- mode = GPIOD_OUT_HIGH;
- else
- mode = GPIOD_OUT_LOW;
-
- /* We can't use devm here because we need to do the get
- * against the MFD device, as that is where the of_node
- * will reside, but if we devm against that the GPIO
- * will not be freed if the extcon driver is unloaded.
- */
- info->micd_pol_gpio = gpiod_get_optional(arizona->dev,
- "wlf,micd-pol",
- mode);
- if (IS_ERR(info->micd_pol_gpio)) {
- ret = PTR_ERR(info->micd_pol_gpio);
- dev_err(arizona->dev,
- "Failed to get microphone polarity GPIO: %d\n",
- ret);
- return ret;
- }
- }
-
- if (arizona->pdata.hpdet_id_gpio > 0) {
- ret = devm_gpio_request_one(&pdev->dev,
- arizona->pdata.hpdet_id_gpio,
- GPIOF_OUT_INIT_LOW,
- "HPDET");
- if (ret != 0) {
- dev_err(arizona->dev, "Failed to request GPIO%d: %d\n",
- arizona->pdata.hpdet_id_gpio, ret);
- goto err_gpio;
- }
- }
-
- if (arizona->pdata.micd_bias_start_time)
- regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
- ARIZONA_MICD_BIAS_STARTTIME_MASK,
- arizona->pdata.micd_bias_start_time
- << ARIZONA_MICD_BIAS_STARTTIME_SHIFT);
-
- if (arizona->pdata.micd_rate)
- regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
- ARIZONA_MICD_RATE_MASK,
- arizona->pdata.micd_rate
- << ARIZONA_MICD_RATE_SHIFT);
-
- switch (arizona->pdata.micd_dbtime) {
- case MICD_DBTIME_FOUR_READINGS:
- regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
- ARIZONA_MICD_DBTIME_MASK,
- ARIZONA_MICD_DBTIME);
- break;
- case MICD_DBTIME_TWO_READINGS:
- regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
- ARIZONA_MICD_DBTIME_MASK, 0);
- break;
- default:
- break;
- }
-
- BUILD_BUG_ON(ARRAY_SIZE(arizona_micd_levels) <
- ARIZONA_NUM_MICD_BUTTON_LEVELS);
-
- if (arizona->pdata.num_micd_ranges) {
- info->micd_ranges = pdata->micd_ranges;
- info->num_micd_ranges = pdata->num_micd_ranges;
- } else {
- info->micd_ranges = micd_default_ranges;
- info->num_micd_ranges = ARRAY_SIZE(micd_default_ranges);
- }
-
- if (arizona->pdata.num_micd_ranges > ARIZONA_MAX_MICD_RANGE) {
- dev_err(arizona->dev, "Too many MICD ranges: %d\n",
- arizona->pdata.num_micd_ranges);
- }
-
- if (info->num_micd_ranges > 1) {
- for (i = 1; i < info->num_micd_ranges; i++) {
- if (info->micd_ranges[i - 1].max >
- info->micd_ranges[i].max) {
- dev_err(arizona->dev,
- "MICD ranges must be sorted\n");
- ret = -EINVAL;
- goto err_gpio;
- }
- }
- }
-
- /* Disable all buttons by default */
- regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_2,
- ARIZONA_MICD_LVL_SEL_MASK, 0x81);
-
- /* Set up all the buttons the user specified */
- for (i = 0; i < info->num_micd_ranges; i++) {
- for (j = 0; j < ARIZONA_NUM_MICD_BUTTON_LEVELS; j++)
- if (arizona_micd_levels[j] >= info->micd_ranges[i].max)
- break;
-
- if (j == ARIZONA_NUM_MICD_BUTTON_LEVELS) {
- dev_err(arizona->dev, "Unsupported MICD level %d\n",
- info->micd_ranges[i].max);
- ret = -EINVAL;
- goto err_gpio;
- }
-
- dev_dbg(arizona->dev, "%d ohms for MICD threshold %d\n",
- arizona_micd_levels[j], i);
-
- arizona_micd_set_level(arizona, i, j);
- input_set_capability(info->input, EV_KEY,
- info->micd_ranges[i].key);
-
- /* Enable reporting of that range */
- regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_2,
- 1 << i, 1 << i);
- }
-
- /* Set all the remaining keys to a maximum */
- for (; i < ARIZONA_MAX_MICD_RANGE; i++)
- arizona_micd_set_level(arizona, i, 0x3f);
-
- /*
- * If we have a clamp use it, activating in conjunction with
- * GPIO5 if that is connected for jack detect operation.
- */
- if (info->micd_clamp) {
- if (arizona->pdata.jd_gpio5) {
- /* Put the GPIO into input mode with optional pull */
- val = 0xc101;
- if (arizona->pdata.jd_gpio5_nopull)
- val &= ~ARIZONA_GPN_PU;
-
- regmap_write(arizona->regmap, ARIZONA_GPIO5_CTRL,
- val);
-
- if (arizona->pdata.jd_invert)
- clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDH_GP5H;
- else
- clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDL_GP5H;
- } else {
- if (arizona->pdata.jd_invert)
- clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDH;
- else
- clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDL;
- }
-
- regmap_update_bits(arizona->regmap,
- ARIZONA_MICD_CLAMP_CONTROL,
- ARIZONA_MICD_CLAMP_MODE_MASK, clamp_mode);
-
- regmap_update_bits(arizona->regmap,
- ARIZONA_JACK_DETECT_DEBOUNCE,
- ARIZONA_MICD_CLAMP_DB,
- ARIZONA_MICD_CLAMP_DB);
- }
-
- arizona_extcon_set_mode(info, 0);
-
- pm_runtime_enable(&pdev->dev);
- pm_runtime_idle(&pdev->dev);
- pm_runtime_get_sync(&pdev->dev);
-
- if (info->micd_clamp) {
- jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE;
- jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL;
- } else {
- jack_irq_rise = ARIZONA_IRQ_JD_RISE;
- jack_irq_fall = ARIZONA_IRQ_JD_FALL;
- }
-
- ret = arizona_request_irq(arizona, jack_irq_rise,
- "JACKDET rise", arizona_jackdet, info);
- if (ret != 0) {
- dev_err(&pdev->dev, "Failed to get JACKDET rise IRQ: %d\n",
- ret);
- goto err_pm;
- }
-
- ret = arizona_set_irq_wake(arizona, jack_irq_rise, 1);
- if (ret != 0) {
- dev_err(&pdev->dev, "Failed to set JD rise IRQ wake: %d\n",
- ret);
- goto err_rise;
- }
-
- ret = arizona_request_irq(arizona, jack_irq_fall,
- "JACKDET fall", arizona_jackdet, info);
- if (ret != 0) {
- dev_err(&pdev->dev, "Failed to get JD fall IRQ: %d\n", ret);
- goto err_rise_wake;
- }
-
- ret = arizona_set_irq_wake(arizona, jack_irq_fall, 1);
- if (ret != 0) {
- dev_err(&pdev->dev, "Failed to set JD fall IRQ wake: %d\n",
- ret);
- goto err_fall;
- }
-
- ret = arizona_request_irq(arizona, ARIZONA_IRQ_MICDET,
- "MICDET", arizona_micdet, info);
- if (ret != 0) {
- dev_err(&pdev->dev, "Failed to get MICDET IRQ: %d\n", ret);
- goto err_fall_wake;
- }
-
- ret = arizona_request_irq(arizona, ARIZONA_IRQ_HPDET,
- "HPDET", arizona_hpdet_irq, info);
- if (ret != 0) {
- dev_err(&pdev->dev, "Failed to get HPDET IRQ: %d\n", ret);
- goto err_micdet;
- }
-
- arizona_clk32k_enable(arizona);
- regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_DEBOUNCE,
- ARIZONA_JD1_DB, ARIZONA_JD1_DB);
- regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE,
- ARIZONA_JD1_ENA, ARIZONA_JD1_ENA);
-
- ret = regulator_allow_bypass(info->micvdd, true);
- if (ret != 0)
- dev_warn(arizona->dev, "Failed to set MICVDD to bypass: %d\n",
- ret);
-
- ret = input_register_device(info->input);
- if (ret) {
- dev_err(&pdev->dev, "Can't register input device: %d\n", ret);
- goto err_hpdet;
- }
-
- pm_runtime_put(&pdev->dev);
-
- return 0;
-
-err_hpdet:
- arizona_free_irq(arizona, ARIZONA_IRQ_HPDET, info);
-err_micdet:
- arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info);
-err_fall_wake:
- arizona_set_irq_wake(arizona, jack_irq_fall, 0);
-err_fall:
- arizona_free_irq(arizona, jack_irq_fall, info);
-err_rise_wake:
- arizona_set_irq_wake(arizona, jack_irq_rise, 0);
-err_rise:
- arizona_free_irq(arizona, jack_irq_rise, info);
-err_pm:
- pm_runtime_put(&pdev->dev);
- pm_runtime_disable(&pdev->dev);
-err_gpio:
- gpiod_put(info->micd_pol_gpio);
- return ret;
-}
-
-static int arizona_extcon_remove(struct platform_device *pdev)
-{
- struct arizona_extcon_info *info = platform_get_drvdata(pdev);
- struct arizona *arizona = info->arizona;
- int jack_irq_rise, jack_irq_fall;
- bool change;
- int ret;
-
- if (info->micd_clamp) {
- jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE;
- jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL;
- } else {
- jack_irq_rise = ARIZONA_IRQ_JD_RISE;
- jack_irq_fall = ARIZONA_IRQ_JD_FALL;
- }
-
- arizona_set_irq_wake(arizona, jack_irq_rise, 0);
- arizona_set_irq_wake(arizona, jack_irq_fall, 0);
- arizona_free_irq(arizona, ARIZONA_IRQ_HPDET, info);
- arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info);
- arizona_free_irq(arizona, jack_irq_rise, info);
- arizona_free_irq(arizona, jack_irq_fall, info);
- cancel_delayed_work_sync(&info->hpdet_work);
- cancel_delayed_work_sync(&info->micd_detect_work);
- cancel_delayed_work_sync(&info->micd_timeout_work);
-
- ret = regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1,
- ARIZONA_MICD_ENA, 0,
- &change);
- if (ret < 0) {
- dev_err(&pdev->dev, "Failed to disable micd on remove: %d\n",
- ret);
- } else if (change) {
- regulator_disable(info->micvdd);
- pm_runtime_put(info->dev);
- }
-
- regmap_update_bits(arizona->regmap,
- ARIZONA_MICD_CLAMP_CONTROL,
- ARIZONA_MICD_CLAMP_MODE_MASK, 0);
- regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE,
- ARIZONA_JD1_ENA, 0);
- arizona_clk32k_disable(arizona);
-
- gpiod_put(info->micd_pol_gpio);
-
- pm_runtime_disable(&pdev->dev);
-
- return 0;
-}
-
-static struct platform_driver arizona_extcon_driver = {
- .driver = {
- .name = "arizona-extcon",
- },
- .probe = arizona_extcon_probe,
- .remove = arizona_extcon_remove,
-};
-
-module_platform_driver(arizona_extcon_driver);
-
-MODULE_DESCRIPTION("Arizona Extcon driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:extcon-arizona");
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * extcon-arizona.c - Extcon driver Wolfson Arizona devices
+ *
+ * Copyright (C) 2012-2014 Wolfson Microelectronics plc
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/err.h>
+#include <linux/gpio/consumer.h>
+#include <linux/gpio.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/property.h>
+#include <linux/regulator/consumer.h>
+#include <linux/extcon-provider.h>
+
+#include <sound/soc.h>
+
+#include <linux/mfd/arizona/core.h>
+#include <linux/mfd/arizona/pdata.h>
+#include <linux/mfd/arizona/registers.h>
+#include <dt-bindings/mfd/arizona.h>
+
+#define ARIZONA_MAX_MICD_RANGE 8
+
+#define ARIZONA_MICD_CLAMP_MODE_JDL 0x4
+#define ARIZONA_MICD_CLAMP_MODE_JDH 0x5
+#define ARIZONA_MICD_CLAMP_MODE_JDL_GP5H 0x9
+#define ARIZONA_MICD_CLAMP_MODE_JDH_GP5H 0xb
+
+#define ARIZONA_TST_CAP_DEFAULT 0x3
+#define ARIZONA_TST_CAP_CLAMP 0x1
+
+#define ARIZONA_HPDET_MAX 10000
+
+#define HPDET_DEBOUNCE 500
+#define DEFAULT_MICD_TIMEOUT 2000
+
+#define ARIZONA_HPDET_WAIT_COUNT 15
+#define ARIZONA_HPDET_WAIT_DELAY_MS 20
+
+#define QUICK_HEADPHONE_MAX_OHM 3
+#define MICROPHONE_MIN_OHM 1257
+#define MICROPHONE_MAX_OHM 30000
+
+#define MICD_DBTIME_TWO_READINGS 2
+#define MICD_DBTIME_FOUR_READINGS 4
+
+#define MICD_LVL_1_TO_7 (ARIZONA_MICD_LVL_1 | ARIZONA_MICD_LVL_2 | \
+ ARIZONA_MICD_LVL_3 | ARIZONA_MICD_LVL_4 | \
+ ARIZONA_MICD_LVL_5 | ARIZONA_MICD_LVL_6 | \
+ ARIZONA_MICD_LVL_7)
+
+#define MICD_LVL_0_TO_7 (ARIZONA_MICD_LVL_0 | MICD_LVL_1_TO_7)
+
+#define MICD_LVL_0_TO_8 (MICD_LVL_0_TO_7 | ARIZONA_MICD_LVL_8)
+
+struct arizona_extcon_info {
+ struct device *dev;
+ struct arizona *arizona;
+ struct mutex lock;
+ struct regulator *micvdd;
+ struct input_dev *input;
+
+ u16 last_jackdet;
+
+ int micd_mode;
+ const struct arizona_micd_config *micd_modes;
+ int micd_num_modes;
+
+ const struct arizona_micd_range *micd_ranges;
+ int num_micd_ranges;
+
+ bool micd_reva;
+ bool micd_clamp;
+
+ struct delayed_work hpdet_work;
+ struct delayed_work micd_detect_work;
+ struct delayed_work micd_timeout_work;
+
+ bool hpdet_active;
+ bool hpdet_done;
+ bool hpdet_retried;
+
+ int num_hpdet_res;
+ unsigned int hpdet_res[3];
+
+ bool mic;
+ bool detecting;
+ int jack_flips;
+
+ int hpdet_ip_version;
+
+ struct extcon_dev *edev;
+
+ struct gpio_desc *micd_pol_gpio;
+};
+
+static const struct arizona_micd_config micd_default_modes[] = {
+ { ARIZONA_ACCDET_SRC, 1, 0 },
+ { 0, 2, 1 },
+};
+
+static const struct arizona_micd_range micd_default_ranges[] = {
+ { .max = 11, .key = BTN_0 },
+ { .max = 28, .key = BTN_1 },
+ { .max = 54, .key = BTN_2 },
+ { .max = 100, .key = BTN_3 },
+ { .max = 186, .key = BTN_4 },
+ { .max = 430, .key = BTN_5 },
+};
+
+/* The number of levels in arizona_micd_levels valid for button thresholds */
+#define ARIZONA_NUM_MICD_BUTTON_LEVELS 64
+
+static const int arizona_micd_levels[] = {
+ 3, 6, 8, 11, 13, 16, 18, 21, 23, 26, 28, 31, 34, 36, 39, 41, 44, 46,
+ 49, 52, 54, 57, 60, 62, 65, 67, 70, 73, 75, 78, 81, 83, 89, 94, 100,
+ 105, 111, 116, 122, 127, 139, 150, 161, 173, 186, 196, 209, 220, 245,
+ 270, 295, 321, 348, 375, 402, 430, 489, 550, 614, 681, 752, 903, 1071,
+ 1257, 30000,
+};
+
+static const unsigned int arizona_cable[] = {
+ EXTCON_MECHANICAL,
+ EXTCON_JACK_MICROPHONE,
+ EXTCON_JACK_HEADPHONE,
+ EXTCON_JACK_LINE_OUT,
+ EXTCON_NONE,
+};
+
+static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info);
+
+static void arizona_extcon_hp_clamp(struct arizona_extcon_info *info,
+ bool clamp)
+{
+ struct arizona *arizona = info->arizona;
+ unsigned int mask = 0, val = 0;
+ unsigned int cap_sel = 0;
+ int ret;
+
+ switch (arizona->type) {
+ case WM8998:
+ case WM1814:
+ mask = 0;
+ break;
+ case WM5110:
+ case WM8280:
+ mask = ARIZONA_HP1L_SHRTO | ARIZONA_HP1L_FLWR |
+ ARIZONA_HP1L_SHRTI;
+ if (clamp) {
+ val = ARIZONA_HP1L_SHRTO;
+ cap_sel = ARIZONA_TST_CAP_CLAMP;
+ } else {
+ val = ARIZONA_HP1L_FLWR | ARIZONA_HP1L_SHRTI;
+ cap_sel = ARIZONA_TST_CAP_DEFAULT;
+ }
+
+ ret = regmap_update_bits(arizona->regmap,
+ ARIZONA_HP_TEST_CTRL_1,
+ ARIZONA_HP1_TST_CAP_SEL_MASK,
+ cap_sel);
+ if (ret != 0)
+ dev_warn(arizona->dev,
+ "Failed to set TST_CAP_SEL: %d\n", ret);
+ break;
+ default:
+ mask = ARIZONA_RMV_SHRT_HP1L;
+ if (clamp)
+ val = ARIZONA_RMV_SHRT_HP1L;
+ break;
+ }
+
+ snd_soc_dapm_mutex_lock(arizona->dapm);
+
+ arizona->hpdet_clamp = clamp;
+
+ /* Keep the HP output stages disabled while doing the clamp */
+ if (clamp) {
+ ret = regmap_update_bits(arizona->regmap,
+ ARIZONA_OUTPUT_ENABLES_1,
+ ARIZONA_OUT1L_ENA |
+ ARIZONA_OUT1R_ENA, 0);
+ if (ret != 0)
+ dev_warn(arizona->dev,
+ "Failed to disable headphone outputs: %d\n",
+ ret);
+ }
+
+ if (mask) {
+ ret = regmap_update_bits(arizona->regmap, ARIZONA_HP_CTRL_1L,
+ mask, val);
+ if (ret != 0)
+ dev_warn(arizona->dev, "Failed to do clamp: %d\n",
+ ret);
+
+ ret = regmap_update_bits(arizona->regmap, ARIZONA_HP_CTRL_1R,
+ mask, val);
+ if (ret != 0)
+ dev_warn(arizona->dev, "Failed to do clamp: %d\n",
+ ret);
+ }
+
+ /* Restore the desired state while not doing the clamp */
+ if (!clamp) {
+ ret = regmap_update_bits(arizona->regmap,
+ ARIZONA_OUTPUT_ENABLES_1,
+ ARIZONA_OUT1L_ENA |
+ ARIZONA_OUT1R_ENA, arizona->hp_ena);
+ if (ret != 0)
+ dev_warn(arizona->dev,
+ "Failed to restore headphone outputs: %d\n",
+ ret);
+ }
+
+ snd_soc_dapm_mutex_unlock(arizona->dapm);
+}
+
+static void arizona_extcon_set_mode(struct arizona_extcon_info *info, int mode)
+{
+ struct arizona *arizona = info->arizona;
+
+ mode %= info->micd_num_modes;
+
+ gpiod_set_value_cansleep(info->micd_pol_gpio,
+ info->micd_modes[mode].gpio);
+
+ regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
+ ARIZONA_MICD_BIAS_SRC_MASK,
+ info->micd_modes[mode].bias <<
+ ARIZONA_MICD_BIAS_SRC_SHIFT);
+ regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1,
+ ARIZONA_ACCDET_SRC, info->micd_modes[mode].src);
+
+ info->micd_mode = mode;
+
+ dev_dbg(arizona->dev, "Set jack polarity to %d\n", mode);
+}
+
+static const char *arizona_extcon_get_micbias(struct arizona_extcon_info *info)
+{
+ switch (info->micd_modes[0].bias) {
+ case 1:
+ return "MICBIAS1";
+ case 2:
+ return "MICBIAS2";
+ case 3:
+ return "MICBIAS3";
+ default:
+ return "MICVDD";
+ }
+}
+
+static void arizona_extcon_pulse_micbias(struct arizona_extcon_info *info)
+{
+ struct arizona *arizona = info->arizona;
+ const char *widget = arizona_extcon_get_micbias(info);
+ struct snd_soc_dapm_context *dapm = arizona->dapm;
+ struct snd_soc_component *component = snd_soc_dapm_to_component(dapm);
+ int ret;
+
+ ret = snd_soc_component_force_enable_pin(component, widget);
+ if (ret != 0)
+ dev_warn(arizona->dev, "Failed to enable %s: %d\n",
+ widget, ret);
+
+ snd_soc_dapm_sync(dapm);
+
+ if (!arizona->pdata.micd_force_micbias) {
+ ret = snd_soc_component_disable_pin(component, widget);
+ if (ret != 0)
+ dev_warn(arizona->dev, "Failed to disable %s: %d\n",
+ widget, ret);
+
+ snd_soc_dapm_sync(dapm);
+ }
+}
+
+static void arizona_start_mic(struct arizona_extcon_info *info)
+{
+ struct arizona *arizona = info->arizona;
+ bool change;
+ int ret;
+ unsigned int mode;
+
+ /* Microphone detection can't use idle mode */
+ pm_runtime_get_sync(info->dev);
+
+ if (info->detecting) {
+ ret = regulator_allow_bypass(info->micvdd, false);
+ if (ret != 0) {
+ dev_err(arizona->dev,
+ "Failed to regulate MICVDD: %d\n",
+ ret);
+ }
+ }
+
+ ret = regulator_enable(info->micvdd);
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to enable MICVDD: %d\n",
+ ret);
+ }
+
+ if (info->micd_reva) {
+ const struct reg_sequence reva[] = {
+ { 0x80, 0x3 },
+ { 0x294, 0x0 },
+ { 0x80, 0x0 },
+ };
+
+ regmap_multi_reg_write(arizona->regmap, reva, ARRAY_SIZE(reva));
+ }
+
+ if (info->detecting && arizona->pdata.micd_software_compare)
+ mode = ARIZONA_ACCDET_MODE_ADC;
+ else
+ mode = ARIZONA_ACCDET_MODE_MIC;
+
+ regmap_update_bits(arizona->regmap,
+ ARIZONA_ACCESSORY_DETECT_MODE_1,
+ ARIZONA_ACCDET_MODE_MASK, mode);
+
+ arizona_extcon_pulse_micbias(info);
+
+ ret = regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1,
+ ARIZONA_MICD_ENA, ARIZONA_MICD_ENA,
+ &change);
+ if (ret < 0) {
+ dev_err(arizona->dev, "Failed to enable micd: %d\n", ret);
+ } else if (!change) {
+ regulator_disable(info->micvdd);
+ pm_runtime_put_autosuspend(info->dev);
+ }
+}
+
+static void arizona_stop_mic(struct arizona_extcon_info *info)
+{
+ struct arizona *arizona = info->arizona;
+ const char *widget = arizona_extcon_get_micbias(info);
+ struct snd_soc_dapm_context *dapm = arizona->dapm;
+ struct snd_soc_component *component = snd_soc_dapm_to_component(dapm);
+ bool change = false;
+ int ret;
+
+ ret = regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1,
+ ARIZONA_MICD_ENA, 0,
+ &change);
+ if (ret < 0)
+ dev_err(arizona->dev, "Failed to disable micd: %d\n", ret);
+
+ ret = snd_soc_component_disable_pin(component, widget);
+ if (ret != 0)
+ dev_warn(arizona->dev,
+ "Failed to disable %s: %d\n",
+ widget, ret);
+
+ snd_soc_dapm_sync(dapm);
+
+ if (info->micd_reva) {
+ const struct reg_sequence reva[] = {
+ { 0x80, 0x3 },
+ { 0x294, 0x2 },
+ { 0x80, 0x0 },
+ };
+
+ regmap_multi_reg_write(arizona->regmap, reva, ARRAY_SIZE(reva));
+ }
+
+ ret = regulator_allow_bypass(info->micvdd, true);
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to bypass MICVDD: %d\n",
+ ret);
+ }
+
+ if (change) {
+ regulator_disable(info->micvdd);
+ pm_runtime_mark_last_busy(info->dev);
+ pm_runtime_put_autosuspend(info->dev);
+ }
+}
+
+static struct {
+ unsigned int threshold;
+ unsigned int factor_a;
+ unsigned int factor_b;
+} arizona_hpdet_b_ranges[] = {
+ { 100, 5528, 362464 },
+ { 169, 11084, 6186851 },
+ { 169, 11065, 65460395 },
+};
+
+#define ARIZONA_HPDET_B_RANGE_MAX 0x3fb
+
+static struct {
+ int min;
+ int max;
+} arizona_hpdet_c_ranges[] = {
+ { 0, 30 },
+ { 8, 100 },
+ { 100, 1000 },
+ { 1000, 10000 },
+};
+
+static int arizona_hpdet_read(struct arizona_extcon_info *info)
+{
+ struct arizona *arizona = info->arizona;
+ unsigned int val, range;
+ int ret;
+
+ ret = regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_2, &val);
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to read HPDET status: %d\n",
+ ret);
+ return ret;
+ }
+
+ switch (info->hpdet_ip_version) {
+ case 0:
+ if (!(val & ARIZONA_HP_DONE)) {
+ dev_err(arizona->dev, "HPDET did not complete: %x\n",
+ val);
+ return -EAGAIN;
+ }
+
+ val &= ARIZONA_HP_LVL_MASK;
+ break;
+
+ case 1:
+ if (!(val & ARIZONA_HP_DONE_B)) {
+ dev_err(arizona->dev, "HPDET did not complete: %x\n",
+ val);
+ return -EAGAIN;
+ }
+
+ ret = regmap_read(arizona->regmap, ARIZONA_HP_DACVAL, &val);
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to read HP value: %d\n",
+ ret);
+ return -EAGAIN;
+ }
+
+ regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1,
+ &range);
+ range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK)
+ >> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT;
+
+ if (range < ARRAY_SIZE(arizona_hpdet_b_ranges) - 1 &&
+ (val < arizona_hpdet_b_ranges[range].threshold ||
+ val >= ARIZONA_HPDET_B_RANGE_MAX)) {
+ range++;
+ dev_dbg(arizona->dev, "Moving to HPDET range %d\n",
+ range);
+ regmap_update_bits(arizona->regmap,
+ ARIZONA_HEADPHONE_DETECT_1,
+ ARIZONA_HP_IMPEDANCE_RANGE_MASK,
+ range <<
+ ARIZONA_HP_IMPEDANCE_RANGE_SHIFT);
+ return -EAGAIN;
+ }
+
+ /* If we go out of range report top of range */
+ if (val < arizona_hpdet_b_ranges[range].threshold ||
+ val >= ARIZONA_HPDET_B_RANGE_MAX) {
+ dev_dbg(arizona->dev, "Measurement out of range\n");
+ return ARIZONA_HPDET_MAX;
+ }
+
+ dev_dbg(arizona->dev, "HPDET read %d in range %d\n",
+ val, range);
+
+ val = arizona_hpdet_b_ranges[range].factor_b
+ / ((val * 100) -
+ arizona_hpdet_b_ranges[range].factor_a);
+ break;
+
+ case 2:
+ if (!(val & ARIZONA_HP_DONE_B)) {
+ dev_err(arizona->dev, "HPDET did not complete: %x\n",
+ val);
+ return -EAGAIN;
+ }
+
+ val &= ARIZONA_HP_LVL_B_MASK;
+ /* Convert to ohms, the value is in 0.5 ohm increments */
+ val /= 2;
+
+ regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1,
+ &range);
+ range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK)
+ >> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT;
+
+ /* Skip up a range, or report? */
+ if (range < ARRAY_SIZE(arizona_hpdet_c_ranges) - 1 &&
+ (val >= arizona_hpdet_c_ranges[range].max)) {
+ range++;
+ dev_dbg(arizona->dev, "Moving to HPDET range %d-%d\n",
+ arizona_hpdet_c_ranges[range].min,
+ arizona_hpdet_c_ranges[range].max);
+ regmap_update_bits(arizona->regmap,
+ ARIZONA_HEADPHONE_DETECT_1,
+ ARIZONA_HP_IMPEDANCE_RANGE_MASK,
+ range <<
+ ARIZONA_HP_IMPEDANCE_RANGE_SHIFT);
+ return -EAGAIN;
+ }
+
+ if (range && (val < arizona_hpdet_c_ranges[range].min)) {
+ dev_dbg(arizona->dev, "Reporting range boundary %d\n",
+ arizona_hpdet_c_ranges[range].min);
+ val = arizona_hpdet_c_ranges[range].min;
+ }
+ break;
+
+ default:
+ dev_warn(arizona->dev, "Unknown HPDET IP revision %d\n",
+ info->hpdet_ip_version);
+ return -EINVAL;
+ }
+
+ dev_dbg(arizona->dev, "HP impedance %d ohms\n", val);
+ return val;
+}
+
+static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading,
+ bool *mic)
+{
+ struct arizona *arizona = info->arizona;
+ int id_gpio = arizona->pdata.hpdet_id_gpio;
+
+ if (!arizona->pdata.hpdet_acc_id)
+ return 0;
+
+ /*
+ * If we're using HPDET for accessory identification we need
+ * to take multiple measurements, step through them in sequence.
+ */
+ info->hpdet_res[info->num_hpdet_res++] = *reading;
+
+ /* Only check the mic directly if we didn't already ID it */
+ if (id_gpio && info->num_hpdet_res == 1) {
+ dev_dbg(arizona->dev, "Measuring mic\n");
+
+ regmap_update_bits(arizona->regmap,
+ ARIZONA_ACCESSORY_DETECT_MODE_1,
+ ARIZONA_ACCDET_MODE_MASK |
+ ARIZONA_ACCDET_SRC,
+ ARIZONA_ACCDET_MODE_HPR |
+ info->micd_modes[0].src);
+
+ gpio_set_value_cansleep(id_gpio, 1);
+
+ regmap_update_bits(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1,
+ ARIZONA_HP_POLL, ARIZONA_HP_POLL);
+ return -EAGAIN;
+ }
+
+ /* OK, got both. Now, compare... */
+ dev_dbg(arizona->dev, "HPDET measured %d %d\n",
+ info->hpdet_res[0], info->hpdet_res[1]);
+
+ /* Take the headphone impedance for the main report */
+ *reading = info->hpdet_res[0];
+
+ /* Sometimes we get false readings due to slow insert */
+ if (*reading >= ARIZONA_HPDET_MAX && !info->hpdet_retried) {
+ dev_dbg(arizona->dev, "Retrying high impedance\n");
+ info->num_hpdet_res = 0;
+ info->hpdet_retried = true;
+ arizona_start_hpdet_acc_id(info);
+ pm_runtime_put(info->dev);
+ return -EAGAIN;
+ }
+
+ /*
+ * If we measure the mic as high impedance
+ */
+ if (!id_gpio || info->hpdet_res[1] > 50) {
+ dev_dbg(arizona->dev, "Detected mic\n");
+ *mic = true;
+ info->detecting = true;
+ } else {
+ dev_dbg(arizona->dev, "Detected headphone\n");
+ }
+
+ /* Make sure everything is reset back to the real polarity */
+ regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1,
+ ARIZONA_ACCDET_SRC, info->micd_modes[0].src);
+
+ return 0;
+}
+
+static irqreturn_t arizona_hpdet_irq(int irq, void *data)
+{
+ struct arizona_extcon_info *info = data;
+ struct arizona *arizona = info->arizona;
+ int id_gpio = arizona->pdata.hpdet_id_gpio;
+ unsigned int report = EXTCON_JACK_HEADPHONE;
+ int ret, reading, state;
+ bool mic = false;
+
+ mutex_lock(&info->lock);
+
+ /* If we got a spurious IRQ for some reason then ignore it */
+ if (!info->hpdet_active) {
+ dev_warn(arizona->dev, "Spurious HPDET IRQ\n");
+ mutex_unlock(&info->lock);
+ return IRQ_NONE;
+ }
+
+ /* If the cable was removed while measuring ignore the result */
+ state = extcon_get_state(info->edev, EXTCON_MECHANICAL);
+ if (state < 0) {
+ dev_err(arizona->dev, "Failed to check cable state: %d\n", state);
+ goto out;
+ } else if (!state) {
+ dev_dbg(arizona->dev, "Ignoring HPDET for removed cable\n");
+ goto done;
+ }
+
+ ret = arizona_hpdet_read(info);
+ if (ret == -EAGAIN)
+ goto out;
+ else if (ret < 0)
+ goto done;
+ reading = ret;
+
+ /* Reset back to starting range */
+ regmap_update_bits(arizona->regmap,
+ ARIZONA_HEADPHONE_DETECT_1,
+ ARIZONA_HP_IMPEDANCE_RANGE_MASK | ARIZONA_HP_POLL,
+ 0);
+
+ ret = arizona_hpdet_do_id(info, &reading, &mic);
+ if (ret == -EAGAIN)
+ goto out;
+ else if (ret < 0)
+ goto done;
+
+ /* Report high impedence cables as line outputs */
+ if (reading >= 5000)
+ report = EXTCON_JACK_LINE_OUT;
+ else
+ report = EXTCON_JACK_HEADPHONE;
+
+ ret = extcon_set_state_sync(info->edev, report, true);
+ if (ret != 0)
+ dev_err(arizona->dev, "Failed to report HP/line: %d\n",
+ ret);
+
+done:
+ /* Reset back to starting range */
+ regmap_update_bits(arizona->regmap,
+ ARIZONA_HEADPHONE_DETECT_1,
+ ARIZONA_HP_IMPEDANCE_RANGE_MASK | ARIZONA_HP_POLL,
+ 0);
+
+ arizona_extcon_hp_clamp(info, false);
+
+ if (id_gpio)
+ gpio_set_value_cansleep(id_gpio, 0);
+
+ /* If we have a mic then reenable MICDET */
+ if (state && (mic || info->mic))
+ arizona_start_mic(info);
+
+ if (info->hpdet_active) {
+ pm_runtime_put_autosuspend(info->dev);
+ info->hpdet_active = false;
+ }
+
+ /* Do not set hp_det done when the cable has been unplugged */
+ if (state)
+ info->hpdet_done = true;
+
+out:
+ mutex_unlock(&info->lock);
+
+ return IRQ_HANDLED;
+}
+
+static void arizona_identify_headphone(struct arizona_extcon_info *info)
+{
+ struct arizona *arizona = info->arizona;
+ int ret;
+
+ if (info->hpdet_done)
+ return;
+
+ dev_dbg(arizona->dev, "Starting HPDET\n");
+
+ /* Make sure we keep the device enabled during the measurement */
+ pm_runtime_get_sync(info->dev);
+
+ info->hpdet_active = true;
+
+ arizona_stop_mic(info);
+
+ arizona_extcon_hp_clamp(info, true);
+
+ ret = regmap_update_bits(arizona->regmap,
+ ARIZONA_ACCESSORY_DETECT_MODE_1,
+ ARIZONA_ACCDET_MODE_MASK,
+ arizona->pdata.hpdet_channel);
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to set HPDET mode: %d\n", ret);
+ goto err;
+ }
+
+ ret = regmap_update_bits(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1,
+ ARIZONA_HP_POLL, ARIZONA_HP_POLL);
+ if (ret != 0) {
+ dev_err(arizona->dev, "Can't start HPDETL measurement: %d\n",
+ ret);
+ goto err;
+ }
+
+ return;
+
+err:
+ arizona_extcon_hp_clamp(info, false);
+ pm_runtime_put_autosuspend(info->dev);
+
+ /* Just report headphone */
+ ret = extcon_set_state_sync(info->edev, EXTCON_JACK_HEADPHONE, true);
+ if (ret != 0)
+ dev_err(arizona->dev, "Failed to report headphone: %d\n", ret);
+
+ if (info->mic)
+ arizona_start_mic(info);
+
+ info->hpdet_active = false;
+}
+
+static void arizona_start_hpdet_acc_id(struct arizona_extcon_info *info)
+{
+ struct arizona *arizona = info->arizona;
+ int hp_reading = 32;
+ bool mic;
+ int ret;
+
+ dev_dbg(arizona->dev, "Starting identification via HPDET\n");
+
+ /* Make sure we keep the device enabled during the measurement */
+ pm_runtime_get_sync(info->dev);
+
+ info->hpdet_active = true;
+
+ arizona_extcon_hp_clamp(info, true);
+
+ ret = regmap_update_bits(arizona->regmap,
+ ARIZONA_ACCESSORY_DETECT_MODE_1,
+ ARIZONA_ACCDET_SRC | ARIZONA_ACCDET_MODE_MASK,
+ info->micd_modes[0].src |
+ arizona->pdata.hpdet_channel);
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to set HPDET mode: %d\n", ret);
+ goto err;
+ }
+
+ if (arizona->pdata.hpdet_acc_id_line) {
+ ret = regmap_update_bits(arizona->regmap,
+ ARIZONA_HEADPHONE_DETECT_1,
+ ARIZONA_HP_POLL, ARIZONA_HP_POLL);
+ if (ret != 0) {
+ dev_err(arizona->dev,
+ "Can't start HPDETL measurement: %d\n",
+ ret);
+ goto err;
+ }
+ } else {
+ arizona_hpdet_do_id(info, &hp_reading, &mic);
+ }
+
+ return;
+
+err:
+ /* Just report headphone */
+ ret = extcon_set_state_sync(info->edev, EXTCON_JACK_HEADPHONE, true);
+ if (ret != 0)
+ dev_err(arizona->dev, "Failed to report headphone: %d\n", ret);
+
+ info->hpdet_active = false;
+}
+
+static void arizona_micd_timeout_work(struct work_struct *work)
+{
+ struct arizona_extcon_info *info = container_of(work,
+ struct arizona_extcon_info,
+ micd_timeout_work.work);
+
+ mutex_lock(&info->lock);
+
+ dev_dbg(info->arizona->dev, "MICD timed out, reporting HP\n");
+
+ info->detecting = false;
+
+ arizona_identify_headphone(info);
+
+ mutex_unlock(&info->lock);
+}
+
+static int arizona_micd_adc_read(struct arizona_extcon_info *info)
+{
+ struct arizona *arizona = info->arizona;
+ unsigned int val;
+ int ret;
+
+ /* Must disable MICD before we read the ADCVAL */
+ regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
+ ARIZONA_MICD_ENA, 0);
+
+ ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_4, &val);
+ if (ret != 0) {
+ dev_err(arizona->dev,
+ "Failed to read MICDET_ADCVAL: %d\n", ret);
+ return ret;
+ }
+
+ dev_dbg(arizona->dev, "MICDET_ADCVAL: %x\n", val);
+
+ val &= ARIZONA_MICDET_ADCVAL_MASK;
+ if (val < ARRAY_SIZE(arizona_micd_levels))
+ val = arizona_micd_levels[val];
+ else
+ val = INT_MAX;
+
+ if (val <= QUICK_HEADPHONE_MAX_OHM)
+ val = ARIZONA_MICD_STS | ARIZONA_MICD_LVL_0;
+ else if (val <= MICROPHONE_MIN_OHM)
+ val = ARIZONA_MICD_STS | ARIZONA_MICD_LVL_1;
+ else if (val <= MICROPHONE_MAX_OHM)
+ val = ARIZONA_MICD_STS | ARIZONA_MICD_LVL_8;
+ else
+ val = ARIZONA_MICD_LVL_8;
+
+ return val;
+}
+
+static int arizona_micd_read(struct arizona_extcon_info *info)
+{
+ struct arizona *arizona = info->arizona;
+ unsigned int val = 0;
+ int ret, i;
+
+ for (i = 0; i < 10 && !(val & MICD_LVL_0_TO_8); i++) {
+ ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_3, &val);
+ if (ret != 0) {
+ dev_err(arizona->dev,
+ "Failed to read MICDET: %d\n", ret);
+ return ret;
+ }
+
+ dev_dbg(arizona->dev, "MICDET: %x\n", val);
+
+ if (!(val & ARIZONA_MICD_VALID)) {
+ dev_warn(arizona->dev,
+ "Microphone detection state invalid\n");
+ return -EINVAL;
+ }
+ }
+
+ if (i == 10 && !(val & MICD_LVL_0_TO_8)) {
+ dev_err(arizona->dev, "Failed to get valid MICDET value\n");
+ return -EINVAL;
+ }
+
+ return val;
+}
+
+static int arizona_micdet_reading(void *priv)
+{
+ struct arizona_extcon_info *info = priv;
+ struct arizona *arizona = info->arizona;
+ int ret, val;
+
+ if (info->detecting && arizona->pdata.micd_software_compare)
+ ret = arizona_micd_adc_read(info);
+ else
+ ret = arizona_micd_read(info);
+ if (ret < 0)
+ return ret;
+
+ val = ret;
+
+ /* Due to jack detect this should never happen */
+ if (!(val & ARIZONA_MICD_STS)) {
+ dev_warn(arizona->dev, "Detected open circuit\n");
+ info->mic = false;
+ info->detecting = false;
+ arizona_identify_headphone(info);
+ return 0;
+ }
+
+ /* If we got a high impedence we should have a headset, report it. */
+ if (val & ARIZONA_MICD_LVL_8) {
+ info->mic = true;
+ info->detecting = false;
+
+ arizona_identify_headphone(info);
+
+ ret = extcon_set_state_sync(info->edev,
+ EXTCON_JACK_MICROPHONE, true);
+ if (ret != 0)
+ dev_err(arizona->dev, "Headset report failed: %d\n",
+ ret);
+
+ /* Don't need to regulate for button detection */
+ ret = regulator_allow_bypass(info->micvdd, true);
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to bypass MICVDD: %d\n",
+ ret);
+ }
+
+ return 0;
+ }
+
+ /* If we detected a lower impedence during initial startup
+ * then we probably have the wrong polarity, flip it. Don't
+ * do this for the lowest impedences to speed up detection of
+ * plain headphones. If both polarities report a low
+ * impedence then give up and report headphones.
+ */
+ if (val & MICD_LVL_1_TO_7) {
+ if (info->jack_flips >= info->micd_num_modes * 10) {
+ dev_dbg(arizona->dev, "Detected HP/line\n");
+
+ info->detecting = false;
+
+ arizona_identify_headphone(info);
+ } else {
+ info->micd_mode++;
+ if (info->micd_mode == info->micd_num_modes)
+ info->micd_mode = 0;
+ arizona_extcon_set_mode(info, info->micd_mode);
+
+ info->jack_flips++;
+
+ if (arizona->pdata.micd_software_compare)
+ regmap_update_bits(arizona->regmap,
+ ARIZONA_MIC_DETECT_1,
+ ARIZONA_MICD_ENA,
+ ARIZONA_MICD_ENA);
+
+ queue_delayed_work(system_power_efficient_wq,
+ &info->micd_timeout_work,
+ msecs_to_jiffies(arizona->pdata.micd_timeout));
+ }
+
+ return 0;
+ }
+
+ /*
+ * If we're still detecting and we detect a short then we've
+ * got a headphone.
+ */
+ dev_dbg(arizona->dev, "Headphone detected\n");
+ info->detecting = false;
+
+ arizona_identify_headphone(info);
+
+ return 0;
+}
+
+static int arizona_button_reading(void *priv)
+{
+ struct arizona_extcon_info *info = priv;
+ struct arizona *arizona = info->arizona;
+ int val, key, lvl, i;
+
+ val = arizona_micd_read(info);
+ if (val < 0)
+ return val;
+
+ /*
+ * If we're still detecting and we detect a short then we've
+ * got a headphone. Otherwise it's a button press.
+ */
+ if (val & MICD_LVL_0_TO_7) {
+ if (info->mic) {
+ dev_dbg(arizona->dev, "Mic button detected\n");
+
+ lvl = val & ARIZONA_MICD_LVL_MASK;
+ lvl >>= ARIZONA_MICD_LVL_SHIFT;
+
+ for (i = 0; i < info->num_micd_ranges; i++)
+ input_report_key(info->input,
+ info->micd_ranges[i].key, 0);
+
+ if (lvl && ffs(lvl) - 1 < info->num_micd_ranges) {
+ key = info->micd_ranges[ffs(lvl) - 1].key;
+ input_report_key(info->input, key, 1);
+ input_sync(info->input);
+ } else {
+ dev_err(arizona->dev, "Button out of range\n");
+ }
+ } else {
+ dev_warn(arizona->dev, "Button with no mic: %x\n",
+ val);
+ }
+ } else {
+ dev_dbg(arizona->dev, "Mic button released\n");
+ for (i = 0; i < info->num_micd_ranges; i++)
+ input_report_key(info->input,
+ info->micd_ranges[i].key, 0);
+ input_sync(info->input);
+ arizona_extcon_pulse_micbias(info);
+ }
+
+ return 0;
+}
+
+static void arizona_micd_detect(struct work_struct *work)
+{
+ struct arizona_extcon_info *info = container_of(work,
+ struct arizona_extcon_info,
+ micd_detect_work.work);
+ struct arizona *arizona = info->arizona;
+ int ret;
+
+ cancel_delayed_work_sync(&info->micd_timeout_work);
+
+ mutex_lock(&info->lock);
+
+ /* If the cable was removed while measuring ignore the result */
+ ret = extcon_get_state(info->edev, EXTCON_MECHANICAL);
+ if (ret < 0) {
+ dev_err(arizona->dev, "Failed to check cable state: %d\n",
+ ret);
+ mutex_unlock(&info->lock);
+ return;
+ } else if (!ret) {
+ dev_dbg(arizona->dev, "Ignoring MICDET for removed cable\n");
+ mutex_unlock(&info->lock);
+ return;
+ }
+
+ if (info->detecting)
+ arizona_micdet_reading(info);
+ else
+ arizona_button_reading(info);
+
+ pm_runtime_mark_last_busy(info->dev);
+ mutex_unlock(&info->lock);
+}
+
+static irqreturn_t arizona_micdet(int irq, void *data)
+{
+ struct arizona_extcon_info *info = data;
+ struct arizona *arizona = info->arizona;
+ int debounce = arizona->pdata.micd_detect_debounce;
+
+ cancel_delayed_work_sync(&info->micd_detect_work);
+ cancel_delayed_work_sync(&info->micd_timeout_work);
+
+ mutex_lock(&info->lock);
+ if (!info->detecting)
+ debounce = 0;
+ mutex_unlock(&info->lock);
+
+ if (debounce)
+ queue_delayed_work(system_power_efficient_wq,
+ &info->micd_detect_work,
+ msecs_to_jiffies(debounce));
+ else
+ arizona_micd_detect(&info->micd_detect_work.work);
+
+ return IRQ_HANDLED;
+}
+
+static void arizona_hpdet_work(struct work_struct *work)
+{
+ struct arizona_extcon_info *info = container_of(work,
+ struct arizona_extcon_info,
+ hpdet_work.work);
+
+ mutex_lock(&info->lock);
+ arizona_start_hpdet_acc_id(info);
+ mutex_unlock(&info->lock);
+}
+
+static int arizona_hpdet_wait(struct arizona_extcon_info *info)
+{
+ struct arizona *arizona = info->arizona;
+ unsigned int val;
+ int i, ret;
+
+ for (i = 0; i < ARIZONA_HPDET_WAIT_COUNT; i++) {
+ ret = regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_2,
+ &val);
+ if (ret) {
+ dev_err(arizona->dev,
+ "Failed to read HPDET state: %d\n", ret);
+ return ret;
+ }
+
+ switch (info->hpdet_ip_version) {
+ case 0:
+ if (val & ARIZONA_HP_DONE)
+ return 0;
+ break;
+ default:
+ if (val & ARIZONA_HP_DONE_B)
+ return 0;
+ break;
+ }
+
+ msleep(ARIZONA_HPDET_WAIT_DELAY_MS);
+ }
+
+ dev_warn(arizona->dev, "HPDET did not appear to complete\n");
+
+ return -ETIMEDOUT;
+}
+
+static irqreturn_t arizona_jackdet(int irq, void *data)
+{
+ struct arizona_extcon_info *info = data;
+ struct arizona *arizona = info->arizona;
+ unsigned int val, present, mask;
+ bool cancelled_hp, cancelled_mic;
+ int ret, i;
+
+ cancelled_hp = cancel_delayed_work_sync(&info->hpdet_work);
+ cancelled_mic = cancel_delayed_work_sync(&info->micd_timeout_work);
+
+ pm_runtime_get_sync(info->dev);
+
+ mutex_lock(&info->lock);
+
+ if (info->micd_clamp) {
+ mask = ARIZONA_MICD_CLAMP_STS;
+ present = 0;
+ } else {
+ mask = ARIZONA_JD1_STS;
+ if (arizona->pdata.jd_invert)
+ present = 0;
+ else
+ present = ARIZONA_JD1_STS;
+ }
+
+ ret = regmap_read(arizona->regmap, ARIZONA_AOD_IRQ_RAW_STATUS, &val);
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to read jackdet status: %d\n",
+ ret);
+ mutex_unlock(&info->lock);
+ pm_runtime_put_autosuspend(info->dev);
+ return IRQ_NONE;
+ }
+
+ val &= mask;
+ if (val == info->last_jackdet) {
+ dev_dbg(arizona->dev, "Suppressing duplicate JACKDET\n");
+ if (cancelled_hp)
+ queue_delayed_work(system_power_efficient_wq,
+ &info->hpdet_work,
+ msecs_to_jiffies(HPDET_DEBOUNCE));
+
+ if (cancelled_mic) {
+ int micd_timeout = arizona->pdata.micd_timeout;
+
+ queue_delayed_work(system_power_efficient_wq,
+ &info->micd_timeout_work,
+ msecs_to_jiffies(micd_timeout));
+ }
+
+ goto out;
+ }
+ info->last_jackdet = val;
+
+ if (info->last_jackdet == present) {
+ dev_dbg(arizona->dev, "Detected jack\n");
+ ret = extcon_set_state_sync(info->edev,
+ EXTCON_MECHANICAL, true);
+
+ if (ret != 0)
+ dev_err(arizona->dev, "Mechanical report failed: %d\n",
+ ret);
+
+ info->detecting = true;
+ info->mic = false;
+ info->jack_flips = 0;
+
+ if (!arizona->pdata.hpdet_acc_id) {
+ arizona_start_mic(info);
+ } else {
+ queue_delayed_work(system_power_efficient_wq,
+ &info->hpdet_work,
+ msecs_to_jiffies(HPDET_DEBOUNCE));
+ }
+
+ if (info->micd_clamp || !arizona->pdata.jd_invert)
+ regmap_update_bits(arizona->regmap,
+ ARIZONA_JACK_DETECT_DEBOUNCE,
+ ARIZONA_MICD_CLAMP_DB |
+ ARIZONA_JD1_DB, 0);
+ } else {
+ dev_dbg(arizona->dev, "Detected jack removal\n");
+
+ arizona_stop_mic(info);
+
+ info->num_hpdet_res = 0;
+ for (i = 0; i < ARRAY_SIZE(info->hpdet_res); i++)
+ info->hpdet_res[i] = 0;
+ info->mic = false;
+ info->hpdet_done = false;
+ info->hpdet_retried = false;
+
+ for (i = 0; i < info->num_micd_ranges; i++)
+ input_report_key(info->input,
+ info->micd_ranges[i].key, 0);
+ input_sync(info->input);
+
+ for (i = 0; i < ARRAY_SIZE(arizona_cable) - 1; i++) {
+ ret = extcon_set_state_sync(info->edev,
+ arizona_cable[i], false);
+ if (ret != 0)
+ dev_err(arizona->dev,
+ "Removal report failed: %d\n", ret);
+ }
+
+ /*
+ * If the jack was removed during a headphone detection we
+ * need to wait for the headphone detection to finish, as
+ * it can not be aborted. We don't want to be able to start
+ * a new headphone detection from a fresh insert until this
+ * one is finished.
+ */
+ arizona_hpdet_wait(info);
+
+ regmap_update_bits(arizona->regmap,
+ ARIZONA_JACK_DETECT_DEBOUNCE,
+ ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB,
+ ARIZONA_MICD_CLAMP_DB | ARIZONA_JD1_DB);
+ }
+
+out:
+ /* Clear trig_sts to make sure DCVDD is not forced up */
+ regmap_write(arizona->regmap, ARIZONA_AOD_WKUP_AND_TRIG,
+ ARIZONA_MICD_CLAMP_FALL_TRIG_STS |
+ ARIZONA_MICD_CLAMP_RISE_TRIG_STS |
+ ARIZONA_JD1_FALL_TRIG_STS |
+ ARIZONA_JD1_RISE_TRIG_STS);
+
+ mutex_unlock(&info->lock);
+
+ pm_runtime_mark_last_busy(info->dev);
+ pm_runtime_put_autosuspend(info->dev);
+
+ return IRQ_HANDLED;
+}
+
+/* Map a level onto a slot in the register bank */
+static void arizona_micd_set_level(struct arizona *arizona, int index,
+ unsigned int level)
+{
+ int reg;
+ unsigned int mask;
+
+ reg = ARIZONA_MIC_DETECT_LEVEL_4 - (index / 2);
+
+ if (!(index % 2)) {
+ mask = 0x3f00;
+ level <<= 8;
+ } else {
+ mask = 0x3f;
+ }
+
+ /* Program the level itself */
+ regmap_update_bits(arizona->regmap, reg, mask, level);
+}
+
+static int arizona_extcon_get_micd_configs(struct device *dev,
+ struct arizona *arizona)
+{
+ const char * const prop = "wlf,micd-configs";
+ const int entries_per_config = 3;
+ struct arizona_micd_config *micd_configs;
+ int nconfs, ret;
+ int i, j;
+ u32 *vals;
+
+ nconfs = device_property_count_u32(arizona->dev, prop);
+ if (nconfs <= 0)
+ return 0;
+
+ vals = kcalloc(nconfs, sizeof(u32), GFP_KERNEL);
+ if (!vals)
+ return -ENOMEM;
+
+ ret = device_property_read_u32_array(arizona->dev, prop, vals, nconfs);
+ if (ret < 0)
+ goto out;
+
+ nconfs /= entries_per_config;
+ micd_configs = devm_kcalloc(dev, nconfs, sizeof(*micd_configs),
+ GFP_KERNEL);
+ if (!micd_configs) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ for (i = 0, j = 0; i < nconfs; ++i) {
+ micd_configs[i].src = vals[j++] ? ARIZONA_ACCDET_SRC : 0;
+ micd_configs[i].bias = vals[j++];
+ micd_configs[i].gpio = vals[j++];
+ }
+
+ arizona->pdata.micd_configs = micd_configs;
+ arizona->pdata.num_micd_configs = nconfs;
+
+out:
+ kfree(vals);
+ return ret;
+}
+
+static int arizona_extcon_device_get_pdata(struct device *dev,
+ struct arizona *arizona)
+{
+ struct arizona_pdata *pdata = &arizona->pdata;
+ unsigned int val = ARIZONA_ACCDET_MODE_HPL;
+ int ret;
+
+ device_property_read_u32(arizona->dev, "wlf,hpdet-channel", &val);
+ switch (val) {
+ case ARIZONA_ACCDET_MODE_HPL:
+ case ARIZONA_ACCDET_MODE_HPR:
+ pdata->hpdet_channel = val;
+ break;
+ default:
+ dev_err(arizona->dev,
+ "Wrong wlf,hpdet-channel DT value %d\n", val);
+ pdata->hpdet_channel = ARIZONA_ACCDET_MODE_HPL;
+ }
+
+ device_property_read_u32(arizona->dev, "wlf,micd-detect-debounce",
+ &pdata->micd_detect_debounce);
+
+ device_property_read_u32(arizona->dev, "wlf,micd-bias-start-time",
+ &pdata->micd_bias_start_time);
+
+ device_property_read_u32(arizona->dev, "wlf,micd-rate",
+ &pdata->micd_rate);
+
+ device_property_read_u32(arizona->dev, "wlf,micd-dbtime",
+ &pdata->micd_dbtime);
+
+ device_property_read_u32(arizona->dev, "wlf,micd-timeout-ms",
+ &pdata->micd_timeout);
+
+ pdata->micd_force_micbias = device_property_read_bool(arizona->dev,
+ "wlf,micd-force-micbias");
+
+ pdata->micd_software_compare = device_property_read_bool(arizona->dev,
+ "wlf,micd-software-compare");
+
+ pdata->jd_invert = device_property_read_bool(arizona->dev,
+ "wlf,jd-invert");
+
+ device_property_read_u32(arizona->dev, "wlf,gpsw", &pdata->gpsw);
+
+ pdata->jd_gpio5 = device_property_read_bool(arizona->dev,
+ "wlf,use-jd2");
+ pdata->jd_gpio5_nopull = device_property_read_bool(arizona->dev,
+ "wlf,use-jd2-nopull");
+
+ ret = arizona_extcon_get_micd_configs(dev, arizona);
+ if (ret < 0)
+ dev_err(arizona->dev, "Failed to read micd configs: %d\n", ret);
+
+ return 0;
+}
+
+static int arizona_extcon_probe(struct platform_device *pdev)
+{
+ struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
+ struct arizona_pdata *pdata = &arizona->pdata;
+ struct arizona_extcon_info *info;
+ unsigned int val;
+ unsigned int clamp_mode;
+ int jack_irq_fall, jack_irq_rise;
+ int ret, mode, i, j;
+
+ if (!arizona->dapm || !arizona->dapm->card)
+ return -EPROBE_DEFER;
+
+ info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ if (!dev_get_platdata(arizona->dev))
+ arizona_extcon_device_get_pdata(&pdev->dev, arizona);
+
+ info->micvdd = devm_regulator_get(&pdev->dev, "MICVDD");
+ if (IS_ERR(info->micvdd)) {
+ ret = PTR_ERR(info->micvdd);
+ dev_err(arizona->dev, "Failed to get MICVDD: %d\n", ret);
+ return ret;
+ }
+
+ mutex_init(&info->lock);
+ info->arizona = arizona;
+ info->dev = &pdev->dev;
+ info->last_jackdet = ~(ARIZONA_MICD_CLAMP_STS | ARIZONA_JD1_STS);
+ INIT_DELAYED_WORK(&info->hpdet_work, arizona_hpdet_work);
+ INIT_DELAYED_WORK(&info->micd_detect_work, arizona_micd_detect);
+ INIT_DELAYED_WORK(&info->micd_timeout_work, arizona_micd_timeout_work);
+ platform_set_drvdata(pdev, info);
+
+ switch (arizona->type) {
+ case WM5102:
+ switch (arizona->rev) {
+ case 0:
+ info->micd_reva = true;
+ break;
+ default:
+ info->micd_clamp = true;
+ info->hpdet_ip_version = 1;
+ break;
+ }
+ break;
+ case WM5110:
+ case WM8280:
+ switch (arizona->rev) {
+ case 0 ... 2:
+ break;
+ default:
+ info->micd_clamp = true;
+ info->hpdet_ip_version = 2;
+ break;
+ }
+ break;
+ case WM8998:
+ case WM1814:
+ info->micd_clamp = true;
+ info->hpdet_ip_version = 2;
+ break;
+ default:
+ break;
+ }
+
+ info->edev = devm_extcon_dev_allocate(&pdev->dev, arizona_cable);
+ if (IS_ERR(info->edev)) {
+ dev_err(&pdev->dev, "failed to allocate extcon device\n");
+ return -ENOMEM;
+ }
+
+ ret = devm_extcon_dev_register(&pdev->dev, info->edev);
+ if (ret < 0) {
+ dev_err(arizona->dev, "extcon_dev_register() failed: %d\n",
+ ret);
+ return ret;
+ }
+
+ info->input = devm_input_allocate_device(&pdev->dev);
+ if (!info->input) {
+ dev_err(arizona->dev, "Can't allocate input dev\n");
+ ret = -ENOMEM;
+ return ret;
+ }
+
+ info->input->name = "Headset";
+ info->input->phys = "arizona/extcon";
+
+ if (!pdata->micd_timeout)
+ pdata->micd_timeout = DEFAULT_MICD_TIMEOUT;
+
+ if (pdata->num_micd_configs) {
+ info->micd_modes = pdata->micd_configs;
+ info->micd_num_modes = pdata->num_micd_configs;
+ } else {
+ info->micd_modes = micd_default_modes;
+ info->micd_num_modes = ARRAY_SIZE(micd_default_modes);
+ }
+
+ if (arizona->pdata.gpsw > 0)
+ regmap_update_bits(arizona->regmap, ARIZONA_GP_SWITCH_1,
+ ARIZONA_SW1_MODE_MASK, arizona->pdata.gpsw);
+
+ if (pdata->micd_pol_gpio > 0) {
+ if (info->micd_modes[0].gpio)
+ mode = GPIOF_OUT_INIT_HIGH;
+ else
+ mode = GPIOF_OUT_INIT_LOW;
+
+ ret = devm_gpio_request_one(&pdev->dev, pdata->micd_pol_gpio,
+ mode, "MICD polarity");
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to request GPIO%d: %d\n",
+ pdata->micd_pol_gpio, ret);
+ return ret;
+ }
+
+ info->micd_pol_gpio = gpio_to_desc(pdata->micd_pol_gpio);
+ } else {
+ if (info->micd_modes[0].gpio)
+ mode = GPIOD_OUT_HIGH;
+ else
+ mode = GPIOD_OUT_LOW;
+
+ /* We can't use devm here because we need to do the get
+ * against the MFD device, as that is where the of_node
+ * will reside, but if we devm against that the GPIO
+ * will not be freed if the extcon driver is unloaded.
+ */
+ info->micd_pol_gpio = gpiod_get_optional(arizona->dev,
+ "wlf,micd-pol",
+ mode);
+ if (IS_ERR(info->micd_pol_gpio)) {
+ ret = PTR_ERR(info->micd_pol_gpio);
+ dev_err(arizona->dev,
+ "Failed to get microphone polarity GPIO: %d\n",
+ ret);
+ return ret;
+ }
+ }
+
+ if (arizona->pdata.hpdet_id_gpio > 0) {
+ ret = devm_gpio_request_one(&pdev->dev,
+ arizona->pdata.hpdet_id_gpio,
+ GPIOF_OUT_INIT_LOW,
+ "HPDET");
+ if (ret != 0) {
+ dev_err(arizona->dev, "Failed to request GPIO%d: %d\n",
+ arizona->pdata.hpdet_id_gpio, ret);
+ goto err_gpio;
+ }
+ }
+
+ if (arizona->pdata.micd_bias_start_time)
+ regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
+ ARIZONA_MICD_BIAS_STARTTIME_MASK,
+ arizona->pdata.micd_bias_start_time
+ << ARIZONA_MICD_BIAS_STARTTIME_SHIFT);
+
+ if (arizona->pdata.micd_rate)
+ regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
+ ARIZONA_MICD_RATE_MASK,
+ arizona->pdata.micd_rate
+ << ARIZONA_MICD_RATE_SHIFT);
+
+ switch (arizona->pdata.micd_dbtime) {
+ case MICD_DBTIME_FOUR_READINGS:
+ regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
+ ARIZONA_MICD_DBTIME_MASK,
+ ARIZONA_MICD_DBTIME);
+ break;
+ case MICD_DBTIME_TWO_READINGS:
+ regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
+ ARIZONA_MICD_DBTIME_MASK, 0);
+ break;
+ default:
+ break;
+ }
+
+ BUILD_BUG_ON(ARRAY_SIZE(arizona_micd_levels) <
+ ARIZONA_NUM_MICD_BUTTON_LEVELS);
+
+ if (arizona->pdata.num_micd_ranges) {
+ info->micd_ranges = pdata->micd_ranges;
+ info->num_micd_ranges = pdata->num_micd_ranges;
+ } else {
+ info->micd_ranges = micd_default_ranges;
+ info->num_micd_ranges = ARRAY_SIZE(micd_default_ranges);
+ }
+
+ if (arizona->pdata.num_micd_ranges > ARIZONA_MAX_MICD_RANGE) {
+ dev_err(arizona->dev, "Too many MICD ranges: %d\n",
+ arizona->pdata.num_micd_ranges);
+ }
+
+ if (info->num_micd_ranges > 1) {
+ for (i = 1; i < info->num_micd_ranges; i++) {
+ if (info->micd_ranges[i - 1].max >
+ info->micd_ranges[i].max) {
+ dev_err(arizona->dev,
+ "MICD ranges must be sorted\n");
+ ret = -EINVAL;
+ goto err_gpio;
+ }
+ }
+ }
+
+ /* Disable all buttons by default */
+ regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_2,
+ ARIZONA_MICD_LVL_SEL_MASK, 0x81);
+
+ /* Set up all the buttons the user specified */
+ for (i = 0; i < info->num_micd_ranges; i++) {
+ for (j = 0; j < ARIZONA_NUM_MICD_BUTTON_LEVELS; j++)
+ if (arizona_micd_levels[j] >= info->micd_ranges[i].max)
+ break;
+
+ if (j == ARIZONA_NUM_MICD_BUTTON_LEVELS) {
+ dev_err(arizona->dev, "Unsupported MICD level %d\n",
+ info->micd_ranges[i].max);
+ ret = -EINVAL;
+ goto err_gpio;
+ }
+
+ dev_dbg(arizona->dev, "%d ohms for MICD threshold %d\n",
+ arizona_micd_levels[j], i);
+
+ arizona_micd_set_level(arizona, i, j);
+ input_set_capability(info->input, EV_KEY,
+ info->micd_ranges[i].key);
+
+ /* Enable reporting of that range */
+ regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_2,
+ 1 << i, 1 << i);
+ }
+
+ /* Set all the remaining keys to a maximum */
+ for (; i < ARIZONA_MAX_MICD_RANGE; i++)
+ arizona_micd_set_level(arizona, i, 0x3f);
+
+ /*
+ * If we have a clamp use it, activating in conjunction with
+ * GPIO5 if that is connected for jack detect operation.
+ */
+ if (info->micd_clamp) {
+ if (arizona->pdata.jd_gpio5) {
+ /* Put the GPIO into input mode with optional pull */
+ val = 0xc101;
+ if (arizona->pdata.jd_gpio5_nopull)
+ val &= ~ARIZONA_GPN_PU;
+
+ regmap_write(arizona->regmap, ARIZONA_GPIO5_CTRL,
+ val);
+
+ if (arizona->pdata.jd_invert)
+ clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDH_GP5H;
+ else
+ clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDL_GP5H;
+ } else {
+ if (arizona->pdata.jd_invert)
+ clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDH;
+ else
+ clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDL;
+ }
+
+ regmap_update_bits(arizona->regmap,
+ ARIZONA_MICD_CLAMP_CONTROL,
+ ARIZONA_MICD_CLAMP_MODE_MASK, clamp_mode);
+
+ regmap_update_bits(arizona->regmap,
+ ARIZONA_JACK_DETECT_DEBOUNCE,
+ ARIZONA_MICD_CLAMP_DB,
+ ARIZONA_MICD_CLAMP_DB);
+ }
+
+ arizona_extcon_set_mode(info, 0);
+
+ pm_runtime_enable(&pdev->dev);
+ pm_runtime_idle(&pdev->dev);
+ pm_runtime_get_sync(&pdev->dev);
+
+ if (info->micd_clamp) {
+ jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE;
+ jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL;
+ } else {
+ jack_irq_rise = ARIZONA_IRQ_JD_RISE;
+ jack_irq_fall = ARIZONA_IRQ_JD_FALL;
+ }
+
+ ret = arizona_request_irq(arizona, jack_irq_rise,
+ "JACKDET rise", arizona_jackdet, info);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "Failed to get JACKDET rise IRQ: %d\n",
+ ret);
+ goto err_pm;
+ }
+
+ ret = arizona_set_irq_wake(arizona, jack_irq_rise, 1);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "Failed to set JD rise IRQ wake: %d\n",
+ ret);
+ goto err_rise;
+ }
+
+ ret = arizona_request_irq(arizona, jack_irq_fall,
+ "JACKDET fall", arizona_jackdet, info);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "Failed to get JD fall IRQ: %d\n", ret);
+ goto err_rise_wake;
+ }
+
+ ret = arizona_set_irq_wake(arizona, jack_irq_fall, 1);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "Failed to set JD fall IRQ wake: %d\n",
+ ret);
+ goto err_fall;
+ }
+
+ ret = arizona_request_irq(arizona, ARIZONA_IRQ_MICDET,
+ "MICDET", arizona_micdet, info);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "Failed to get MICDET IRQ: %d\n", ret);
+ goto err_fall_wake;
+ }
+
+ ret = arizona_request_irq(arizona, ARIZONA_IRQ_HPDET,
+ "HPDET", arizona_hpdet_irq, info);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "Failed to get HPDET IRQ: %d\n", ret);
+ goto err_micdet;
+ }
+
+ arizona_clk32k_enable(arizona);
+ regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_DEBOUNCE,
+ ARIZONA_JD1_DB, ARIZONA_JD1_DB);
+ regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE,
+ ARIZONA_JD1_ENA, ARIZONA_JD1_ENA);
+
+ ret = regulator_allow_bypass(info->micvdd, true);
+ if (ret != 0)
+ dev_warn(arizona->dev, "Failed to set MICVDD to bypass: %d\n",
+ ret);
+
+ ret = input_register_device(info->input);
+ if (ret) {
+ dev_err(&pdev->dev, "Can't register input device: %d\n", ret);
+ goto err_hpdet;
+ }
+
+ pm_runtime_put(&pdev->dev);
+
+ return 0;
+
+err_hpdet:
+ arizona_free_irq(arizona, ARIZONA_IRQ_HPDET, info);
+err_micdet:
+ arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info);
+err_fall_wake:
+ arizona_set_irq_wake(arizona, jack_irq_fall, 0);
+err_fall:
+ arizona_free_irq(arizona, jack_irq_fall, info);
+err_rise_wake:
+ arizona_set_irq_wake(arizona, jack_irq_rise, 0);
+err_rise:
+ arizona_free_irq(arizona, jack_irq_rise, info);
+err_pm:
+ pm_runtime_put(&pdev->dev);
+ pm_runtime_disable(&pdev->dev);
+err_gpio:
+ gpiod_put(info->micd_pol_gpio);
+ return ret;
+}
+
+static int arizona_extcon_remove(struct platform_device *pdev)
+{
+ struct arizona_extcon_info *info = platform_get_drvdata(pdev);
+ struct arizona *arizona = info->arizona;
+ int jack_irq_rise, jack_irq_fall;
+ bool change;
+ int ret;
+
+ if (info->micd_clamp) {
+ jack_irq_rise = ARIZONA_IRQ_MICD_CLAMP_RISE;
+ jack_irq_fall = ARIZONA_IRQ_MICD_CLAMP_FALL;
+ } else {
+ jack_irq_rise = ARIZONA_IRQ_JD_RISE;
+ jack_irq_fall = ARIZONA_IRQ_JD_FALL;
+ }
+
+ arizona_set_irq_wake(arizona, jack_irq_rise, 0);
+ arizona_set_irq_wake(arizona, jack_irq_fall, 0);
+ arizona_free_irq(arizona, ARIZONA_IRQ_HPDET, info);
+ arizona_free_irq(arizona, ARIZONA_IRQ_MICDET, info);
+ arizona_free_irq(arizona, jack_irq_rise, info);
+ arizona_free_irq(arizona, jack_irq_fall, info);
+ cancel_delayed_work_sync(&info->hpdet_work);
+ cancel_delayed_work_sync(&info->micd_detect_work);
+ cancel_delayed_work_sync(&info->micd_timeout_work);
+
+ ret = regmap_update_bits_check(arizona->regmap, ARIZONA_MIC_DETECT_1,
+ ARIZONA_MICD_ENA, 0,
+ &change);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to disable micd on remove: %d\n",
+ ret);
+ } else if (change) {
+ regulator_disable(info->micvdd);
+ pm_runtime_put(info->dev);
+ }
+
+ regmap_update_bits(arizona->regmap,
+ ARIZONA_MICD_CLAMP_CONTROL,
+ ARIZONA_MICD_CLAMP_MODE_MASK, 0);
+ regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE,
+ ARIZONA_JD1_ENA, 0);
+ arizona_clk32k_disable(arizona);
+
+ gpiod_put(info->micd_pol_gpio);
+
+ pm_runtime_disable(&pdev->dev);
+
+ return 0;
+}
+
+static struct platform_driver arizona_extcon_driver = {
+ .driver = {
+ .name = "arizona-extcon",
+ },
+ .probe = arizona_extcon_probe,
+ .remove = arizona_extcon_remove,
+};
+
+module_platform_driver(arizona_extcon_driver);
+
+MODULE_DESCRIPTION("Arizona Extcon driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:extcon-arizona");
projects / linux.git / commitdiff