// SPDX-License-Identifier: GPL-2.0-only /* * DRV260X haptics driver family * * Author: Dan Murphy <dmurphy@ti.com> * * Copyright: (C) 2014 Texas Instruments, Inc. */ #include <linux/i2c.h> #include <linux/input.h> #include <linux/module.h> #include <linux/regmap.h> #include <linux/slab.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/regulator/consumer.h> #include <dt-bindings/input/ti-drv260x.h> #define DRV260X_STATUS 0x0 #define DRV260X_MODE 0x1 #define DRV260X_RT_PB_IN 0x2 #define DRV260X_LIB_SEL 0x3 #define DRV260X_WV_SEQ_1 0x4 #define DRV260X_WV_SEQ_2 0x5 #define DRV260X_WV_SEQ_3 0x6 #define DRV260X_WV_SEQ_4 0x7 #define DRV260X_WV_SEQ_5 0x8 #define DRV260X_WV_SEQ_6 0x9 #define DRV260X_WV_SEQ_7 0xa #define DRV260X_WV_SEQ_8 0xb #define DRV260X_GO 0xc #define DRV260X_OVERDRIVE_OFF 0xd #define DRV260X_SUSTAIN_P_OFF 0xe #define DRV260X_SUSTAIN_N_OFF 0xf #define DRV260X_BRAKE_OFF 0x10 #define DRV260X_A_TO_V_CTRL 0x11 #define DRV260X_A_TO_V_MIN_INPUT 0x12 #define DRV260X_A_TO_V_MAX_INPUT 0x13 #define DRV260X_A_TO_V_MIN_OUT 0x14 #define DRV260X_A_TO_V_MAX_OUT 0x15 #define DRV260X_RATED_VOLT 0x16 #define DRV260X_OD_CLAMP_VOLT 0x17 #define DRV260X_CAL_COMP 0x18 #define DRV260X_CAL_BACK_EMF 0x19 #define DRV260X_FEEDBACK_CTRL 0x1a #define DRV260X_CTRL1 0x1b #define DRV260X_CTRL2 0x1c #define DRV260X_CTRL3 0x1d #define DRV260X_CTRL4 0x1e #define DRV260X_CTRL5 0x1f #define DRV260X_LRA_LOOP_PERIOD 0x20 #define DRV260X_VBAT_MON 0x21 #define DRV260X_LRA_RES_PERIOD 0x22 #define DRV260X_MAX_REG 0x23 #define DRV260X_GO_BIT 0x01 /* Library Selection */ #define DRV260X_LIB_SEL_MASK 0x07 #define DRV260X_LIB_SEL_RAM 0x0 #define DRV260X_LIB_SEL_OD 0x1 #define DRV260X_LIB_SEL_40_60 0x2 #define DRV260X_LIB_SEL_60_80 0x3 #define DRV260X_LIB_SEL_100_140 0x4 #define DRV260X_LIB_SEL_140_PLUS 0x5 #define DRV260X_LIB_SEL_HIZ_MASK 0x10 #define DRV260X_LIB_SEL_HIZ_EN 0x01 #define DRV260X_LIB_SEL_HIZ_DIS 0 /* Mode register */ #define DRV260X_STANDBY (1 << 6) #define DRV260X_STANDBY_MASK 0x40 #define DRV260X_INTERNAL_TRIGGER 0x00 #define DRV260X_EXT_TRIGGER_EDGE 0x01 #define DRV260X_EXT_TRIGGER_LEVEL 0x02 #define DRV260X_PWM_ANALOG_IN 0x03 #define DRV260X_AUDIOHAPTIC 0x04 #define DRV260X_RT_PLAYBACK 0x05 #define DRV260X_DIAGNOSTICS 0x06 #define DRV260X_AUTO_CAL 0x07 /* Audio to Haptics Control */ #define DRV260X_AUDIO_HAPTICS_PEAK_10MS (0 << 2) #define DRV260X_AUDIO_HAPTICS_PEAK_20MS (1 << 2) #define DRV260X_AUDIO_HAPTICS_PEAK_30MS (2 << 2) #define DRV260X_AUDIO_HAPTICS_PEAK_40MS (3 << 2) #define DRV260X_AUDIO_HAPTICS_FILTER_100HZ 0x00 #define DRV260X_AUDIO_HAPTICS_FILTER_125HZ 0x01 #define DRV260X_AUDIO_HAPTICS_FILTER_150HZ 0x02 #define DRV260X_AUDIO_HAPTICS_FILTER_200HZ 0x03 /* Min/Max Input/Output Voltages */ #define DRV260X_AUDIO_HAPTICS_MIN_IN_VOLT 0x19 #define DRV260X_AUDIO_HAPTICS_MAX_IN_VOLT 0x64 #define DRV260X_AUDIO_HAPTICS_MIN_OUT_VOLT 0x19 #define DRV260X_AUDIO_HAPTICS_MAX_OUT_VOLT 0xFF /* Feedback register */ #define DRV260X_FB_REG_ERM_MODE 0x7f #define DRV260X_FB_REG_LRA_MODE (1 << 7) #define DRV260X_BRAKE_FACTOR_MASK 0x1f #define DRV260X_BRAKE_FACTOR_2X (1 << 0) #define DRV260X_BRAKE_FACTOR_3X (2 << 4) #define DRV260X_BRAKE_FACTOR_4X (3 << 4) #define DRV260X_BRAKE_FACTOR_6X (4 << 4) #define DRV260X_BRAKE_FACTOR_8X (5 << 4) #define DRV260X_BRAKE_FACTOR_16 (6 << 4) #define DRV260X_BRAKE_FACTOR_DIS (7 << 4) #define DRV260X_LOOP_GAIN_LOW 0xf3 #define DRV260X_LOOP_GAIN_MED (1 << 2) #define DRV260X_LOOP_GAIN_HIGH (2 << 2) #define DRV260X_LOOP_GAIN_VERY_HIGH (3 << 2) #define DRV260X_BEMF_GAIN_0 0xfc #define DRV260X_BEMF_GAIN_1 (1 << 0) #define DRV260X_BEMF_GAIN_2 (2 << 0) #define DRV260X_BEMF_GAIN_3 (3 << 0) /* Control 1 register */ #define DRV260X_AC_CPLE_EN (1 << 5) #define DRV260X_STARTUP_BOOST (1 << 7) /* Control 2 register */ #define DRV260X_IDISS_TIME_45 0 #define DRV260X_IDISS_TIME_75 (1 << 0) #define DRV260X_IDISS_TIME_150 (1 << 1) #define DRV260X_IDISS_TIME_225 0x03 #define DRV260X_BLANK_TIME_45 (0 << 2) #define DRV260X_BLANK_TIME_75 (1 << 2) #define DRV260X_BLANK_TIME_150 (2 << 2) #define DRV260X_BLANK_TIME_225 (3 << 2) #define DRV260X_SAMP_TIME_150 (0 << 4) #define DRV260X_SAMP_TIME_200 (1 << 4) #define DRV260X_SAMP_TIME_250 (2 << 4) #define DRV260X_SAMP_TIME_300 (3 << 4) #define DRV260X_BRAKE_STABILIZER (1 << 6) #define DRV260X_UNIDIR_IN (0 << 7) #define DRV260X_BIDIR_IN (1 << 7) /* Control 3 Register */ #define DRV260X_LRA_OPEN_LOOP (1 << 0) #define DRV260X_ANANLOG_IN (1 << 1) #define DRV260X_LRA_DRV_MODE (1 << 2) #define DRV260X_RTP_UNSIGNED_DATA (1 << 3) #define DRV260X_SUPPLY_COMP_DIS (1 << 4) #define DRV260X_ERM_OPEN_LOOP (1 << 5) #define DRV260X_NG_THRESH_0 (0 << 6) #define DRV260X_NG_THRESH_2 (1 << 6) #define DRV260X_NG_THRESH_4 (2 << 6) #define DRV260X_NG_THRESH_8 (3 << 6) /* Control 4 Register */ #define DRV260X_AUTOCAL_TIME_150MS (0 << 4) #define DRV260X_AUTOCAL_TIME_250MS (1 << 4) #define DRV260X_AUTOCAL_TIME_500MS (2 << 4) #define DRV260X_AUTOCAL_TIME_1000MS (3 << 4) /** * struct drv260x_data - * @input_dev - Pointer to the input device * @client - Pointer to the I2C client * @regmap - Register map of the device * @work - Work item used to off load the enable/disable of the vibration * @enable_gpio - Pointer to the gpio used for enable/disabling * @regulator - Pointer to the regulator for the IC * @magnitude - Magnitude of the vibration event * @mode - The operating mode of the IC (LRA_NO_CAL, ERM or LRA) * @library - The vibration library to be used * @rated_voltage - The rated_voltage of the actuator * @overdriver_voltage - The over drive voltage of the actuator **/ struct drv260x_data { <------>struct input_dev *input_dev; <------>struct i2c_client *client; <------>struct regmap *regmap; <------>struct work_struct work; <------>struct gpio_desc *enable_gpio; <------>struct regulator *regulator; <------>u32 magnitude; <------>u32 mode; <------>u32 library; <------>int rated_voltage; <------>int overdrive_voltage; }; static const struct reg_default drv260x_reg_defs[] = { <------>{ DRV260X_STATUS, 0xe0 }, <------>{ DRV260X_MODE, 0x40 }, <------>{ DRV260X_RT_PB_IN, 0x00 }, <------>{ DRV260X_LIB_SEL, 0x00 }, <------>{ DRV260X_WV_SEQ_1, 0x01 }, <------>{ DRV260X_WV_SEQ_2, 0x00 }, <------>{ DRV260X_WV_SEQ_3, 0x00 }, <------>{ DRV260X_WV_SEQ_4, 0x00 }, <------>{ DRV260X_WV_SEQ_5, 0x00 }, <------>{ DRV260X_WV_SEQ_6, 0x00 }, <------>{ DRV260X_WV_SEQ_7, 0x00 }, <------>{ DRV260X_WV_SEQ_8, 0x00 }, <------>{ DRV260X_GO, 0x00 }, <------>{ DRV260X_OVERDRIVE_OFF, 0x00 }, <------>{ DRV260X_SUSTAIN_P_OFF, 0x00 }, <------>{ DRV260X_SUSTAIN_N_OFF, 0x00 }, <------>{ DRV260X_BRAKE_OFF, 0x00 }, <------>{ DRV260X_A_TO_V_CTRL, 0x05 }, <------>{ DRV260X_A_TO_V_MIN_INPUT, 0x19 }, <------>{ DRV260X_A_TO_V_MAX_INPUT, 0xff }, <------>{ DRV260X_A_TO_V_MIN_OUT, 0x19 }, <------>{ DRV260X_A_TO_V_MAX_OUT, 0xff }, <------>{ DRV260X_RATED_VOLT, 0x3e }, <------>{ DRV260X_OD_CLAMP_VOLT, 0x8c }, <------>{ DRV260X_CAL_COMP, 0x0c }, <------>{ DRV260X_CAL_BACK_EMF, 0x6c }, <------>{ DRV260X_FEEDBACK_CTRL, 0x36 }, <------>{ DRV260X_CTRL1, 0x93 }, <------>{ DRV260X_CTRL2, 0xfa }, <------>{ DRV260X_CTRL3, 0xa0 }, <------>{ DRV260X_CTRL4, 0x20 }, <------>{ DRV260X_CTRL5, 0x80 }, <------>{ DRV260X_LRA_LOOP_PERIOD, 0x33 }, <------>{ DRV260X_VBAT_MON, 0x00 }, <------>{ DRV260X_LRA_RES_PERIOD, 0x00 }, }; #define DRV260X_DEF_RATED_VOLT 0x90 #define DRV260X_DEF_OD_CLAMP_VOLT 0x90 /** * Rated and Overdriver Voltages: * Calculated using the formula r = v * 255 / 5.6 * where r is what will be written to the register * and v is the rated or overdriver voltage of the actuator **/ static int drv260x_calculate_voltage(unsigned int voltage) { <------>return (voltage * 255 / 5600); } static void drv260x_worker(struct work_struct *work) { <------>struct drv260x_data *haptics = container_of(work, struct drv260x_data, work); <------>int error; <------>gpiod_set_value(haptics->enable_gpio, 1); <------>/* Data sheet says to wait 250us before trying to communicate */ <------>udelay(250); <------>error = regmap_write(haptics->regmap, <------><------><------> DRV260X_MODE, DRV260X_RT_PLAYBACK); <------>if (error) { <------><------>dev_err(&haptics->client->dev, <------><------><------>"Failed to write set mode: %d\n", error); <------>} else { <------><------>error = regmap_write(haptics->regmap, <------><------><------><------> DRV260X_RT_PB_IN, haptics->magnitude); <------><------>if (error) <------><------><------>dev_err(&haptics->client->dev, <------><------><------><------>"Failed to set magnitude: %d\n", error); <------>} } static int drv260x_haptics_play(struct input_dev *input, void *data, <------><------><------><------>struct ff_effect *effect) { <------>struct drv260x_data *haptics = input_get_drvdata(input); <------>haptics->mode = DRV260X_LRA_NO_CAL_MODE; <------>if (effect->u.rumble.strong_magnitude > 0) <------><------>haptics->magnitude = effect->u.rumble.strong_magnitude; <------>else if (effect->u.rumble.weak_magnitude > 0) <------><------>haptics->magnitude = effect->u.rumble.weak_magnitude; <------>else <------><------>haptics->magnitude = 0; <------>schedule_work(&haptics->work); <------>return 0; } static void drv260x_close(struct input_dev *input) { <------>struct drv260x_data *haptics = input_get_drvdata(input); <------>int error; <------>cancel_work_sync(&haptics->work); <------>error = regmap_write(haptics->regmap, DRV260X_MODE, DRV260X_STANDBY); <------>if (error) <------><------>dev_err(&haptics->client->dev, <------><------><------>"Failed to enter standby mode: %d\n", error); <------>gpiod_set_value(haptics->enable_gpio, 0); } static const struct reg_sequence drv260x_lra_cal_regs[] = { <------>{ DRV260X_MODE, DRV260X_AUTO_CAL }, <------>{ DRV260X_CTRL3, DRV260X_NG_THRESH_2 }, <------>{ DRV260X_FEEDBACK_CTRL, DRV260X_FB_REG_LRA_MODE | <------><------>DRV260X_BRAKE_FACTOR_4X | DRV260X_LOOP_GAIN_HIGH }, }; static const struct reg_sequence drv260x_lra_init_regs[] = { <------>{ DRV260X_MODE, DRV260X_RT_PLAYBACK }, <------>{ DRV260X_A_TO_V_CTRL, DRV260X_AUDIO_HAPTICS_PEAK_20MS | <------><------>DRV260X_AUDIO_HAPTICS_FILTER_125HZ }, <------>{ DRV260X_A_TO_V_MIN_INPUT, DRV260X_AUDIO_HAPTICS_MIN_IN_VOLT }, <------>{ DRV260X_A_TO_V_MAX_INPUT, DRV260X_AUDIO_HAPTICS_MAX_IN_VOLT }, <------>{ DRV260X_A_TO_V_MIN_OUT, DRV260X_AUDIO_HAPTICS_MIN_OUT_VOLT }, <------>{ DRV260X_A_TO_V_MAX_OUT, DRV260X_AUDIO_HAPTICS_MAX_OUT_VOLT }, <------>{ DRV260X_FEEDBACK_CTRL, DRV260X_FB_REG_LRA_MODE | <------><------>DRV260X_BRAKE_FACTOR_2X | DRV260X_LOOP_GAIN_MED | <------><------>DRV260X_BEMF_GAIN_3 }, <------>{ DRV260X_CTRL1, DRV260X_STARTUP_BOOST }, <------>{ DRV260X_CTRL2, DRV260X_SAMP_TIME_250 }, <------>{ DRV260X_CTRL3, DRV260X_NG_THRESH_2 | DRV260X_ANANLOG_IN }, <------>{ DRV260X_CTRL4, DRV260X_AUTOCAL_TIME_500MS }, }; static const struct reg_sequence drv260x_erm_cal_regs[] = { <------>{ DRV260X_MODE, DRV260X_AUTO_CAL }, <------>{ DRV260X_A_TO_V_MIN_INPUT, DRV260X_AUDIO_HAPTICS_MIN_IN_VOLT }, <------>{ DRV260X_A_TO_V_MAX_INPUT, DRV260X_AUDIO_HAPTICS_MAX_IN_VOLT }, <------>{ DRV260X_A_TO_V_MIN_OUT, DRV260X_AUDIO_HAPTICS_MIN_OUT_VOLT }, <------>{ DRV260X_A_TO_V_MAX_OUT, DRV260X_AUDIO_HAPTICS_MAX_OUT_VOLT }, <------>{ DRV260X_FEEDBACK_CTRL, DRV260X_BRAKE_FACTOR_3X | <------><------>DRV260X_LOOP_GAIN_MED | DRV260X_BEMF_GAIN_2 }, <------>{ DRV260X_CTRL1, DRV260X_STARTUP_BOOST }, <------>{ DRV260X_CTRL2, DRV260X_SAMP_TIME_250 | DRV260X_BLANK_TIME_75 | <------><------>DRV260X_IDISS_TIME_75 }, <------>{ DRV260X_CTRL3, DRV260X_NG_THRESH_2 | DRV260X_ERM_OPEN_LOOP }, <------>{ DRV260X_CTRL4, DRV260X_AUTOCAL_TIME_500MS }, }; static int drv260x_init(struct drv260x_data *haptics) { <------>int error; <------>unsigned int cal_buf; <------>error = regmap_write(haptics->regmap, <------><------><------> DRV260X_RATED_VOLT, haptics->rated_voltage); <------>if (error) { <------><------>dev_err(&haptics->client->dev, <------><------><------>"Failed to write DRV260X_RATED_VOLT register: %d\n", <------><------><------>error); <------><------>return error; <------>} <------>error = regmap_write(haptics->regmap, <------><------><------> DRV260X_OD_CLAMP_VOLT, haptics->overdrive_voltage); <------>if (error) { <------><------>dev_err(&haptics->client->dev, <------><------><------>"Failed to write DRV260X_OD_CLAMP_VOLT register: %d\n", <------><------><------>error); <------><------>return error; <------>} <------>switch (haptics->mode) { <------>case DRV260X_LRA_MODE: <------><------>error = regmap_register_patch(haptics->regmap, <------><------><------><------><------> drv260x_lra_cal_regs, <------><------><------><------><------> ARRAY_SIZE(drv260x_lra_cal_regs)); <------><------>if (error) { <------><------><------>dev_err(&haptics->client->dev, <------><------><------><------>"Failed to write LRA calibration registers: %d\n", <------><------><------><------>error); <------><------><------>return error; <------><------>} <------><------>break; <------>case DRV260X_ERM_MODE: <------><------>error = regmap_register_patch(haptics->regmap, <------><------><------><------><------> drv260x_erm_cal_regs, <------><------><------><------><------> ARRAY_SIZE(drv260x_erm_cal_regs)); <------><------>if (error) { <------><------><------>dev_err(&haptics->client->dev, <------><------><------><------>"Failed to write ERM calibration registers: %d\n", <------><------><------><------>error); <------><------><------>return error; <------><------>} <------><------>error = regmap_update_bits(haptics->regmap, DRV260X_LIB_SEL, <------><------><------><------><------> DRV260X_LIB_SEL_MASK, <------><------><------><------><------> haptics->library); <------><------>if (error) { <------><------><------>dev_err(&haptics->client->dev, <------><------><------><------>"Failed to write DRV260X_LIB_SEL register: %d\n", <------><------><------><------>error); <------><------><------>return error; <------><------>} <------><------>break; <------>default: <------><------>error = regmap_register_patch(haptics->regmap, <------><------><------><------><------> drv260x_lra_init_regs, <------><------><------><------><------> ARRAY_SIZE(drv260x_lra_init_regs)); <------><------>if (error) { <------><------><------>dev_err(&haptics->client->dev, <------><------><------><------>"Failed to write LRA init registers: %d\n", <------><------><------><------>error); <------><------><------>return error; <------><------>} <------><------>error = regmap_update_bits(haptics->regmap, DRV260X_LIB_SEL, <------><------><------><------><------> DRV260X_LIB_SEL_MASK, <------><------><------><------><------> haptics->library); <------><------>if (error) { <------><------><------>dev_err(&haptics->client->dev, <------><------><------><------>"Failed to write DRV260X_LIB_SEL register: %d\n", <------><------><------><------>error); <------><------><------>return error; <------><------>} <------><------>/* No need to set GO bit here */ <------><------>return 0; <------>} <------>error = regmap_write(haptics->regmap, DRV260X_GO, DRV260X_GO_BIT); <------>if (error) { <------><------>dev_err(&haptics->client->dev, <------><------><------>"Failed to write GO register: %d\n", <------><------><------>error); <------><------>return error; <------>} <------>do { <------><------>error = regmap_read(haptics->regmap, DRV260X_GO, &cal_buf); <------><------>if (error) { <------><------><------>dev_err(&haptics->client->dev, <------><------><------><------>"Failed to read GO register: %d\n", <------><------><------><------>error); <------><------><------>return error; <------><------>} <------>} while (cal_buf == DRV260X_GO_BIT); <------>return 0; } static const struct regmap_config drv260x_regmap_config = { <------>.reg_bits = 8, <------>.val_bits = 8, <------>.max_register = DRV260X_MAX_REG, <------>.reg_defaults = drv260x_reg_defs, <------>.num_reg_defaults = ARRAY_SIZE(drv260x_reg_defs), <------>.cache_type = REGCACHE_NONE, }; static int drv260x_probe(struct i2c_client *client, <------><------><------> const struct i2c_device_id *id) { <------>struct device *dev = &client->dev; <------>struct drv260x_data *haptics; <------>u32 voltage; <------>int error; <------>haptics = devm_kzalloc(dev, sizeof(*haptics), GFP_KERNEL); <------>if (!haptics) <------><------>return -ENOMEM; <------>error = device_property_read_u32(dev, "mode", &haptics->mode); <------>if (error) { <------><------>dev_err(dev, "Can't fetch 'mode' property: %d\n", error); <------><------>return error; <------>} <------>if (haptics->mode < DRV260X_LRA_MODE || <------> haptics->mode > DRV260X_ERM_MODE) { <------><------>dev_err(dev, "Vibrator mode is invalid: %i\n", haptics->mode); <------><------>return -EINVAL; <------>} <------>error = device_property_read_u32(dev, "library-sel", &haptics->library); <------>if (error) { <------><------>dev_err(dev, "Can't fetch 'library-sel' property: %d\n", error); <------><------>return error; <------>} <------>if (haptics->library < DRV260X_LIB_EMPTY || <------> haptics->library > DRV260X_ERM_LIB_F) { <------><------>dev_err(dev, <------><------><------>"Library value is invalid: %i\n", haptics->library); <------><------>return -EINVAL; <------>} <------>if (haptics->mode == DRV260X_LRA_MODE && <------> haptics->library != DRV260X_LIB_EMPTY && <------> haptics->library != DRV260X_LIB_LRA) { <------><------>dev_err(dev, "LRA Mode with ERM Library mismatch\n"); <------><------>return -EINVAL; <------>} <------>if (haptics->mode == DRV260X_ERM_MODE && <------> (haptics->library == DRV260X_LIB_EMPTY || <------> haptics->library == DRV260X_LIB_LRA)) { <------><------>dev_err(dev, "ERM Mode with LRA Library mismatch\n"); <------><------>return -EINVAL; <------>} <------>error = device_property_read_u32(dev, "vib-rated-mv", &voltage); <------>haptics->rated_voltage = error ? DRV260X_DEF_RATED_VOLT : <------><------><------><------><------> drv260x_calculate_voltage(voltage); <------>error = device_property_read_u32(dev, "vib-overdrive-mv", &voltage); <------>haptics->overdrive_voltage = error ? DRV260X_DEF_OD_CLAMP_VOLT : <------><------><------><------><------> drv260x_calculate_voltage(voltage); <------>haptics->regulator = devm_regulator_get(dev, "vbat"); <------>if (IS_ERR(haptics->regulator)) { <------><------>error = PTR_ERR(haptics->regulator); <------><------>dev_err(dev, "unable to get regulator, error: %d\n", error); <------><------>return error; <------>} <------>haptics->enable_gpio = devm_gpiod_get_optional(dev, "enable", <------><------><------><------><------><------> GPIOD_OUT_HIGH); <------>if (IS_ERR(haptics->enable_gpio)) <------><------>return PTR_ERR(haptics->enable_gpio); <------>haptics->input_dev = devm_input_allocate_device(dev); <------>if (!haptics->input_dev) { <------><------>dev_err(dev, "Failed to allocate input device\n"); <------><------>return -ENOMEM; <------>} <------>haptics->input_dev->name = "drv260x:haptics"; <------>haptics->input_dev->close = drv260x_close; <------>input_set_drvdata(haptics->input_dev, haptics); <------>input_set_capability(haptics->input_dev, EV_FF, FF_RUMBLE); <------>error = input_ff_create_memless(haptics->input_dev, NULL, <------><------><------><------><------>drv260x_haptics_play); <------>if (error) { <------><------>dev_err(dev, "input_ff_create() failed: %d\n", error); <------><------>return error; <------>} <------>INIT_WORK(&haptics->work, drv260x_worker); <------>haptics->client = client; <------>i2c_set_clientdata(client, haptics); <------>haptics->regmap = devm_regmap_init_i2c(client, &drv260x_regmap_config); <------>if (IS_ERR(haptics->regmap)) { <------><------>error = PTR_ERR(haptics->regmap); <------><------>dev_err(dev, "Failed to allocate register map: %d\n", error); <------><------>return error; <------>} <------>error = drv260x_init(haptics); <------>if (error) { <------><------>dev_err(dev, "Device init failed: %d\n", error); <------><------>return error; <------>} <------>error = input_register_device(haptics->input_dev); <------>if (error) { <------><------>dev_err(dev, "couldn't register input device: %d\n", error); <------><------>return error; <------>} <------>return 0; } static int __maybe_unused drv260x_suspend(struct device *dev) { <------>struct drv260x_data *haptics = dev_get_drvdata(dev); <------>int ret = 0; <------>mutex_lock(&haptics->input_dev->mutex); <------>if (haptics->input_dev->users) { <------><------>ret = regmap_update_bits(haptics->regmap, <------><------><------><------><------> DRV260X_MODE, <------><------><------><------><------> DRV260X_STANDBY_MASK, <------><------><------><------><------> DRV260X_STANDBY); <------><------>if (ret) { <------><------><------>dev_err(dev, "Failed to set standby mode\n"); <------><------><------>goto out; <------><------>} <------><------>gpiod_set_value(haptics->enable_gpio, 0); <------><------>ret = regulator_disable(haptics->regulator); <------><------>if (ret) { <------><------><------>dev_err(dev, "Failed to disable regulator\n"); <------><------><------>regmap_update_bits(haptics->regmap, <------><------><------><------><------> DRV260X_MODE, <------><------><------><------><------> DRV260X_STANDBY_MASK, 0); <------><------>} <------>} out: <------>mutex_unlock(&haptics->input_dev->mutex); <------>return ret; } static int __maybe_unused drv260x_resume(struct device *dev) { <------>struct drv260x_data *haptics = dev_get_drvdata(dev); <------>int ret = 0; <------>mutex_lock(&haptics->input_dev->mutex); <------>if (haptics->input_dev->users) { <------><------>ret = regulator_enable(haptics->regulator); <------><------>if (ret) { <------><------><------>dev_err(dev, "Failed to enable regulator\n"); <------><------><------>goto out; <------><------>} <------><------>ret = regmap_update_bits(haptics->regmap, <------><------><------><------><------> DRV260X_MODE, <------><------><------><------><------> DRV260X_STANDBY_MASK, 0); <------><------>if (ret) { <------><------><------>dev_err(dev, "Failed to unset standby mode\n"); <------><------><------>regulator_disable(haptics->regulator); <------><------><------>goto out; <------><------>} <------><------>gpiod_set_value(haptics->enable_gpio, 1); <------>} out: <------>mutex_unlock(&haptics->input_dev->mutex); <------>return ret; } static SIMPLE_DEV_PM_OPS(drv260x_pm_ops, drv260x_suspend, drv260x_resume); static const struct i2c_device_id drv260x_id[] = { <------>{ "drv2605l", 0 }, <------>{ } }; MODULE_DEVICE_TABLE(i2c, drv260x_id); static const struct of_device_id drv260x_of_match[] = { <------>{ .compatible = "ti,drv2604", }, <------>{ .compatible = "ti,drv2604l", }, <------>{ .compatible = "ti,drv2605", }, <------>{ .compatible = "ti,drv2605l", }, <------>{ } }; MODULE_DEVICE_TABLE(of, drv260x_of_match); static struct i2c_driver drv260x_driver = { <------>.probe = drv260x_probe, <------>.driver = { <------><------>.name = "drv260x-haptics", <------><------>.of_match_table = drv260x_of_match, <------><------>.pm = &drv260x_pm_ops, <------>}, <------>.id_table = drv260x_id, }; module_i2c_driver(drv260x_driver); MODULE_DESCRIPTION("TI DRV260x haptics driver"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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