18 Jan
2021
18 Jan
'21
2:13 p.m.
On Sun, Jan 17, 2021 at 6:06 PM Hans de Goede hdegoede@redhat.com wrote:
The codec drivers for arizona codecs now take care of jack-detect handling themselves; and drivers/mfd/arizona-core.c no longer instantiates a "arizona-extcon" child-device for these.
This means that the "arizona-extcon" driver is no longer needed (there are no longer any devices for it to bind to), so it can be dropped.
Reviewed-by: Andy Shevchenko andy.shevchenko@gmail.co
Signed-off-by: Hans de Goede hdegoede@redhat.com
MAINTAINERS | 1 - drivers/extcon/Kconfig | 8 - drivers/extcon/Makefile | 1 - drivers/extcon/extcon-arizona.c | 1816 ------------------------------- 4 files changed, 1826 deletions(-) delete mode 100644 drivers/extcon/extcon-arizona.c
diff --git a/MAINTAINERS b/MAINTAINERS index 66b56928cc47..9ded82d53c18 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -19255,7 +19255,6 @@ F: Documentation/devicetree/bindings/sound/wlf,arizona.yaml 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 diff --git a/drivers/extcon/Kconfig b/drivers/extcon/Kconfig index af58ebca2bf6..e3db936becfd 100644 --- a/drivers/extcon/Kconfig +++ b/drivers/extcon/Kconfig @@ -21,14 +21,6 @@ config EXTCON_ADC_JACK 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_SOChelpSay Y here to enable support for external accessory detectionwith Wolfson Arizona devices. These are audio CODECs withadvanced audio accessory detection support.config EXTCON_AXP288 tristate "X-Power AXP288 EXTCON support" depends on MFD_AXP20X && USB_SUPPORT && X86 && ACPI diff --git a/drivers/extcon/Makefile b/drivers/extcon/Makefile index fe10a1b7d18b..1b390d934ca9 100644 --- a/drivers/extcon/Makefile +++ b/drivers/extcon/Makefile @@ -6,7 +6,6 @@ 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 diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c deleted file mode 100644 index aae82db542a5..000000000000 --- a/drivers/extcon/extcon-arizona.c +++ /dev/null @@ -1,1816 +0,0 @@ -// 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(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;elsemode = 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;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 */ret = extcon_get_state(info->edev, EXTCON_MECHANICAL);if (ret < 0) {dev_err(arizona->dev, "Failed to check cable state: %d\n",ret);goto out;} else if (!ret) {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;elsereport = 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 (mic || info->mic)arizona_start_mic(info);if (info->hpdet_active) {pm_runtime_put_autosuspend(info->dev);info->hpdet_active = false;}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(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];elseval = 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;elseval = 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);elseret = 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);elsearizona_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));elsearizona_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;elsepresent = 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;elsemode = 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;elsemode = 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",GPIOD_OUT_LOW);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;elseclamp_mode = ARIZONA_MICD_CLAMP_MODE_JDL_GP5H;} else {if (arizona->pdata.jd_invert)clamp_mode = ARIZONA_MICD_CLAMP_MODE_JDH;elseclamp_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;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);}gpiod_put(info->micd_pol_gpio);pm_runtime_disable(&pdev->dev);regmap_update_bits(arizona->regmap,ARIZONA_MICD_CLAMP_CONTROL,ARIZONA_MICD_CLAMP_MODE_MASK, 0);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);regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE,ARIZONA_JD1_ENA, 0);arizona_clk32k_disable(arizona);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_AUTHOR("Mark Brown broonie@opensource.wolfsonmicro.com"); -MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:extcon-arizona");
2.28.0
--
With Best Regards,
Andy Shevchenko