| /* Copyright (c) 2014-2015, 2017, The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #define pr_fmt(fmt) "haptics: %s: " fmt, __func__ |
| |
| #include <linux/atomic.h> |
| #include <linux/delay.h> |
| #include <linux/hrtimer.h> |
| #include <linux/interrupt.h> |
| #include <linux/kernel.h> |
| #include <linux/log2.h> |
| #include <linux/leds.h> |
| #include <linux/module.h> |
| #include <linux/of_device.h> |
| #include <linux/platform_device.h> |
| #include <linux/pwm.h> |
| #include <linux/regmap.h> |
| #include <linux/slab.h> |
| #include <linux/qpnp/qpnp-misc.h> |
| #include <linux/qpnp/qpnp-revid.h> |
| |
| /* Register definitions */ |
| #define HAP_STATUS_1_REG(chip) (chip->base + 0x0A) |
| #define HAP_BUSY_BIT BIT(1) |
| #define SC_FLAG_BIT BIT(3) |
| #define AUTO_RES_ERROR_BIT BIT(4) |
| |
| #define HAP_LRA_AUTO_RES_LO_REG(chip) (chip->base + 0x0B) |
| #define HAP_LRA_AUTO_RES_HI_REG(chip) (chip->base + 0x0C) |
| |
| #define HAP_INT_RT_STS_REG(chip) (chip->base + 0x10) |
| #define SC_INT_RT_STS_BIT BIT(0) |
| #define PLAY_INT_RT_STS_BIT BIT(1) |
| |
| #define HAP_EN_CTL_REG(chip) (chip->base + 0x46) |
| #define HAP_EN_BIT BIT(7) |
| |
| #define HAP_EN_CTL2_REG(chip) (chip->base + 0x48) |
| #define BRAKE_EN_BIT BIT(0) |
| |
| #define HAP_AUTO_RES_CTRL_REG(chip) (chip->base + 0x4B) |
| #define AUTO_RES_EN_BIT BIT(7) |
| #define AUTO_RES_ERR_RECOVERY_BIT BIT(3) |
| |
| #define HAP_CFG1_REG(chip) (chip->base + 0x4C) |
| #define HAP_ACT_TYPE_MASK BIT(0) |
| #define HAP_LRA 0 |
| #define HAP_ERM 1 |
| |
| #define HAP_CFG2_REG(chip) (chip->base + 0x4D) |
| #define HAP_WAVE_SINE 0 |
| #define HAP_WAVE_SQUARE 1 |
| #define HAP_LRA_RES_TYPE_MASK BIT(0) |
| |
| #define HAP_SEL_REG(chip) (chip->base + 0x4E) |
| #define HAP_WF_SOURCE_MASK GENMASK(5, 4) |
| #define HAP_WF_SOURCE_SHIFT 4 |
| |
| #define HAP_LRA_AUTO_RES_REG(chip) (chip->base + 0x4F) |
| /* For pmi8998 */ |
| #define LRA_AUTO_RES_MODE_MASK GENMASK(6, 4) |
| #define LRA_AUTO_RES_MODE_SHIFT 4 |
| #define LRA_HIGH_Z_MASK GENMASK(3, 2) |
| #define LRA_HIGH_Z_SHIFT 2 |
| #define LRA_RES_CAL_MASK GENMASK(1, 0) |
| #define HAP_RES_CAL_PERIOD_MIN 4 |
| #define HAP_RES_CAL_PERIOD_MAX 32 |
| /* For pm660 */ |
| #define PM660_AUTO_RES_MODE_BIT BIT(7) |
| #define PM660_AUTO_RES_MODE_SHIFT 7 |
| #define PM660_CAL_DURATION_MASK GENMASK(6, 5) |
| #define PM660_CAL_DURATION_SHIFT 5 |
| #define PM660_QWD_DRIVE_DURATION_BIT BIT(4) |
| #define PM660_QWD_DRIVE_DURATION_SHIFT 4 |
| #define PM660_CAL_EOP_BIT BIT(3) |
| #define PM660_CAL_EOP_SHIFT 3 |
| #define PM660_LRA_RES_CAL_MASK GENMASK(2, 0) |
| #define HAP_PM660_RES_CAL_PERIOD_MAX 256 |
| |
| #define HAP_VMAX_CFG_REG(chip) (chip->base + 0x51) |
| #define HAP_VMAX_OVD_BIT BIT(6) |
| #define HAP_VMAX_MASK GENMASK(5, 1) |
| #define HAP_VMAX_SHIFT 1 |
| #define HAP_VMAX_MIN_MV 116 |
| #define HAP_VMAX_MAX_MV 3596 |
| |
| #define HAP_ILIM_CFG_REG(chip) (chip->base + 0x52) |
| #define HAP_ILIM_SEL_MASK BIT(0) |
| #define HAP_ILIM_400_MA 0 |
| #define HAP_ILIM_800_MA 1 |
| |
| #define HAP_SC_DEB_REG(chip) (chip->base + 0x53) |
| #define HAP_SC_DEB_MASK GENMASK(2, 0) |
| #define HAP_SC_DEB_CYCLES_MIN 0 |
| #define HAP_DEF_SC_DEB_CYCLES 8 |
| #define HAP_SC_DEB_CYCLES_MAX 32 |
| |
| #define HAP_RATE_CFG1_REG(chip) (chip->base + 0x54) |
| #define HAP_RATE_CFG1_MASK GENMASK(7, 0) |
| |
| #define HAP_RATE_CFG2_REG(chip) (chip->base + 0x55) |
| #define HAP_RATE_CFG2_MASK GENMASK(3, 0) |
| /* Shift needed to convert drive period upper bits [11:8] */ |
| #define HAP_RATE_CFG2_SHIFT 8 |
| |
| #define HAP_INT_PWM_REG(chip) (chip->base + 0x56) |
| #define INT_PWM_FREQ_SEL_MASK GENMASK(1, 0) |
| #define INT_PWM_FREQ_253_KHZ 0 |
| #define INT_PWM_FREQ_505_KHZ 1 |
| #define INT_PWM_FREQ_739_KHZ 2 |
| #define INT_PWM_FREQ_1076_KHZ 3 |
| |
| #define HAP_EXT_PWM_REG(chip) (chip->base + 0x57) |
| #define EXT_PWM_FREQ_SEL_MASK GENMASK(1, 0) |
| #define EXT_PWM_FREQ_25_KHZ 0 |
| #define EXT_PWM_FREQ_50_KHZ 1 |
| #define EXT_PWM_FREQ_75_KHZ 2 |
| #define EXT_PWM_FREQ_100_KHZ 3 |
| |
| #define HAP_PWM_CAP_REG(chip) (chip->base + 0x58) |
| |
| #define HAP_SC_CLR_REG(chip) (chip->base + 0x59) |
| #define SC_CLR_BIT BIT(0) |
| |
| #define HAP_BRAKE_REG(chip) (chip->base + 0x5C) |
| #define HAP_BRAKE_PAT_MASK 0x3 |
| |
| #define HAP_WF_REPEAT_REG(chip) (chip->base + 0x5E) |
| #define WF_REPEAT_MASK GENMASK(6, 4) |
| #define WF_REPEAT_SHIFT 4 |
| #define WF_REPEAT_MIN 1 |
| #define WF_REPEAT_MAX 128 |
| #define WF_S_REPEAT_MASK GENMASK(1, 0) |
| #define WF_S_REPEAT_MIN 1 |
| #define WF_S_REPEAT_MAX 8 |
| |
| #define HAP_WF_S1_REG(chip) (chip->base + 0x60) |
| #define HAP_WF_SIGN_BIT BIT(7) |
| #define HAP_WF_OVD_BIT BIT(6) |
| #define HAP_WF_SAMP_MAX GENMASK(5, 1) |
| #define HAP_WF_SAMPLE_LEN 8 |
| |
| #define HAP_PLAY_REG(chip) (chip->base + 0x70) |
| #define PLAY_BIT BIT(7) |
| #define PAUSE_BIT BIT(0) |
| |
| #define HAP_SEC_ACCESS_REG(chip) (chip->base + 0xD0) |
| |
| #define HAP_TEST2_REG(chip) (chip->base + 0xE3) |
| #define HAP_EXT_PWM_DTEST_MASK GENMASK(6, 4) |
| #define HAP_EXT_PWM_DTEST_SHIFT 4 |
| #define PWM_MAX_DTEST_LINES 4 |
| #define HAP_EXT_PWM_PEAK_DATA 0x7F |
| #define HAP_EXT_PWM_HALF_DUTY 50 |
| #define HAP_EXT_PWM_FULL_DUTY 100 |
| #define HAP_EXT_PWM_DATA_FACTOR 39 |
| |
| /* Other definitions */ |
| #define HAP_BRAKE_PAT_LEN 4 |
| #define HAP_WAVE_SAMP_LEN 8 |
| #define NUM_WF_SET 4 |
| #define HAP_WAVE_SAMP_SET_LEN (HAP_WAVE_SAMP_LEN * NUM_WF_SET) |
| #define HAP_RATE_CFG_STEP_US 5 |
| #define HAP_WAVE_PLAY_RATE_US_MIN 0 |
| #define HAP_DEF_WAVE_PLAY_RATE_US 5715 |
| #define HAP_WAVE_PLAY_RATE_US_MAX 20475 |
| #define HAP_MAX_PLAY_TIME_MS 15000 |
| |
| enum hap_brake_pat { |
| NO_BRAKE = 0, |
| BRAKE_VMAX_4, |
| BRAKE_VMAX_2, |
| BRAKE_VMAX, |
| }; |
| |
| enum hap_auto_res_mode { |
| HAP_AUTO_RES_NONE, |
| HAP_AUTO_RES_ZXD, |
| HAP_AUTO_RES_QWD, |
| HAP_AUTO_RES_MAX_QWD, |
| HAP_AUTO_RES_ZXD_EOP, |
| }; |
| |
| enum hap_pm660_auto_res_mode { |
| HAP_PM660_AUTO_RES_ZXD, |
| HAP_PM660_AUTO_RES_QWD, |
| }; |
| |
| /* high Z option lines */ |
| enum hap_high_z { |
| HAP_LRA_HIGH_Z_NONE, /* opt0 for PM660 */ |
| HAP_LRA_HIGH_Z_OPT1, |
| HAP_LRA_HIGH_Z_OPT2, |
| HAP_LRA_HIGH_Z_OPT3, |
| }; |
| |
| /* play modes */ |
| enum hap_mode { |
| HAP_DIRECT, |
| HAP_BUFFER, |
| HAP_AUDIO, |
| HAP_PWM, |
| }; |
| |
| /* wave/sample repeat */ |
| enum hap_rep_type { |
| HAP_WAVE_REPEAT = 1, |
| HAP_WAVE_SAMP_REPEAT, |
| }; |
| |
| /* status flags */ |
| enum hap_status { |
| AUTO_RESONANCE_ENABLED = BIT(0), |
| }; |
| |
| enum hap_play_control { |
| HAP_STOP, |
| HAP_PAUSE, |
| HAP_PLAY, |
| }; |
| |
| /* pwm channel parameters */ |
| struct pwm_param { |
| struct pwm_device *pwm_dev; |
| u32 duty_us; |
| u32 period_us; |
| }; |
| |
| /* |
| * hap_lra_ares_param - Haptic auto_resonance parameters |
| * @ lra_qwd_drive_duration - LRA QWD drive duration |
| * @ calibrate_at_eop - Calibrate at EOP |
| * @ lra_res_cal_period - LRA resonance calibration period |
| * @ auto_res_mode - auto resonace mode |
| * @ lra_high_z - high z option line |
| */ |
| struct hap_lra_ares_param { |
| int lra_qwd_drive_duration; |
| int calibrate_at_eop; |
| enum hap_high_z lra_high_z; |
| u16 lra_res_cal_period; |
| u8 auto_res_mode; |
| }; |
| |
| /* |
| * hap_chip - Haptics data structure |
| * @ pdev - platform device pointer |
| * @ regmap - regmap pointer |
| * @ bus_lock - spin lock for bus read/write |
| * @ play_lock - mutex lock for haptics play/enable control |
| * @ haptics_work - haptics worker |
| * @ stop_timer - hrtimer for stopping haptics |
| * @ auto_res_err_poll_timer - hrtimer for auto-resonance error |
| * @ base - base address |
| * @ play_irq - irq for play |
| * @ sc_irq - irq for short circuit |
| * @ pwm_data - pwm configuration |
| * @ ares_cfg - auto resonance configuration |
| * @ play_time_ms - play time set by the user in ms |
| * @ max_play_time_ms - max play time in ms |
| * @ vmax_mv - max voltage in mv |
| * @ ilim_ma - limiting current in ma |
| * @ sc_deb_cycles - short circuit debounce cycles |
| * @ wave_play_rate_us - play rate for waveform |
| * @ last_rate_cfg - Last rate config updated |
| * @ wave_rep_cnt - waveform repeat count |
| * @ wave_s_rep_cnt - waveform sample repeat count |
| * @ ext_pwm_freq_khz - external pwm frequency in KHz |
| * @ ext_pwm_dtest_line - DTEST line for external pwm |
| * @ status_flags - status |
| * @ play_mode - play mode |
| * @ act_type - actuator type |
| * @ wave_shape - waveform shape |
| * @ wave_samp_idx - wave sample id used to refer start of a sample set |
| * @ wave_samp - array of wave samples |
| * @ brake_pat - pattern for active breaking |
| * @ en_brake - brake state |
| * @ misc_clk_trim_error_reg - MISC clock trim error register if present |
| * @ clk_trim_error_code - MISC clock trim error code |
| * @ drive_period_code_max_limit - calculated drive period code with |
| percentage variation on the higher side. |
| * @ drive_period_code_min_limit - calculated drive period code with |
| percentage variation on the lower side |
| * @ drive_period_code_max_var_pct - maximum limit of percentage variation of |
| drive period code |
| * @ drive_period_code_min_var_pct - minimum limit of percentage variation of |
| drive period code |
| * @ last_sc_time - Last time short circuit was detected |
| * @ sc_count - counter to determine the duration of short circuit |
| condition |
| * @ perm_disable - Flag to disable module permanently |
| * @ state - current state of haptics |
| * @ module_en - module enable status of haptics |
| * @ lra_auto_mode - Auto mode selection |
| * @ play_irq_en - Play interrupt enable status |
| * @ auto_res_err_recovery_hw - Enable auto resonance error recovery by HW |
| */ |
| struct hap_chip { |
| struct platform_device *pdev; |
| struct regmap *regmap; |
| struct pmic_revid_data *revid; |
| struct led_classdev cdev; |
| spinlock_t bus_lock; |
| struct mutex play_lock; |
| struct mutex param_lock; |
| struct work_struct haptics_work; |
| struct hrtimer stop_timer; |
| struct hrtimer auto_res_err_poll_timer; |
| u16 base; |
| int play_irq; |
| int sc_irq; |
| struct pwm_param pwm_data; |
| struct hap_lra_ares_param ares_cfg; |
| u32 play_time_ms; |
| u32 max_play_time_ms; |
| u32 vmax_mv; |
| u8 ilim_ma; |
| u32 sc_deb_cycles; |
| u32 wave_play_rate_us; |
| u16 last_rate_cfg; |
| u32 wave_rep_cnt; |
| u32 wave_s_rep_cnt; |
| u32 ext_pwm_freq_khz; |
| u8 ext_pwm_dtest_line; |
| u32 status_flags; |
| enum hap_mode play_mode; |
| u8 act_type; |
| u8 wave_shape; |
| u8 wave_samp_idx; |
| u32 wave_samp[HAP_WAVE_SAMP_SET_LEN]; |
| u32 brake_pat[HAP_BRAKE_PAT_LEN]; |
| bool en_brake; |
| u32 misc_clk_trim_error_reg; |
| u8 clk_trim_error_code; |
| u16 drive_period_code_max_limit; |
| u16 drive_period_code_min_limit; |
| u8 drive_period_code_max_var_pct; |
| u8 drive_period_code_min_var_pct; |
| ktime_t last_sc_time; |
| u8 sc_count; |
| bool perm_disable; |
| atomic_t state; |
| bool module_en; |
| bool lra_auto_mode; |
| bool play_irq_en; |
| bool auto_res_err_recovery_hw; |
| }; |
| |
| static int qpnp_haptics_parse_buffer_dt(struct hap_chip *chip); |
| static int qpnp_haptics_parse_pwm_dt(struct hap_chip *chip); |
| |
| static int qpnp_haptics_read_reg(struct hap_chip *chip, u16 addr, u8 *val, |
| int len) |
| { |
| int rc; |
| |
| rc = regmap_bulk_read(chip->regmap, addr, val, len); |
| if (rc < 0) |
| pr_err("Error reading address: 0x%x - rc %d\n", addr, rc); |
| |
| return rc; |
| } |
| |
| static inline bool is_secure(u16 addr) |
| { |
| return ((addr & 0xFF) > 0xD0); |
| } |
| |
| static int qpnp_haptics_write_reg(struct hap_chip *chip, u16 addr, u8 *val, |
| int len) |
| { |
| unsigned long flags; |
| unsigned int unlock = 0xA5; |
| int rc = 0, i; |
| |
| spin_lock_irqsave(&chip->bus_lock, flags); |
| |
| if (is_secure(addr)) { |
| for (i = 0; i < len; i++) { |
| rc = regmap_write(chip->regmap, |
| HAP_SEC_ACCESS_REG(chip), unlock); |
| if (rc < 0) { |
| pr_err("Error writing unlock code - rc %d\n", |
| rc); |
| goto out; |
| } |
| |
| rc = regmap_write(chip->regmap, addr + i, val[i]); |
| if (rc < 0) { |
| pr_err("Error writing address 0x%x - rc %d\n", |
| addr + i, rc); |
| goto out; |
| } |
| } |
| } else { |
| if (len > 1) |
| rc = regmap_bulk_write(chip->regmap, addr, val, len); |
| else |
| rc = regmap_write(chip->regmap, addr, *val); |
| } |
| |
| if (rc < 0) |
| pr_err("Error writing address: 0x%x - rc %d\n", addr, rc); |
| |
| out: |
| spin_unlock_irqrestore(&chip->bus_lock, flags); |
| return rc; |
| } |
| |
| static int qpnp_haptics_masked_write_reg(struct hap_chip *chip, u16 addr, |
| u8 mask, u8 val) |
| { |
| unsigned long flags; |
| unsigned int unlock = 0xA5; |
| int rc; |
| |
| spin_lock_irqsave(&chip->bus_lock, flags); |
| if (is_secure(addr)) { |
| rc = regmap_write(chip->regmap, HAP_SEC_ACCESS_REG(chip), |
| unlock); |
| if (rc < 0) { |
| pr_err("Error writing unlock code - rc %d\n", rc); |
| goto out; |
| } |
| } |
| |
| rc = regmap_update_bits(chip->regmap, addr, mask, val); |
| if (rc < 0) |
| pr_err("Error writing address: 0x%x - rc %d\n", addr, rc); |
| |
| if (!rc) |
| pr_debug("wrote to address 0x%x = 0x%x\n", addr, val); |
| out: |
| spin_unlock_irqrestore(&chip->bus_lock, flags); |
| return rc; |
| } |
| |
| static bool is_sw_lra_auto_resonance_control(struct hap_chip *chip) |
| { |
| if (chip->act_type != HAP_LRA) |
| return false; |
| |
| if (chip->auto_res_err_recovery_hw) |
| return false; |
| |
| /* |
| * For short pattern in auto mode, we use buffer mode and auto |
| * resonance is not needed. |
| */ |
| if (chip->lra_auto_mode && chip->play_mode == HAP_BUFFER) |
| return false; |
| |
| return true; |
| } |
| |
| #define HAPTICS_BACK_EMF_DELAY_US 20000 |
| static int qpnp_haptics_auto_res_enable(struct hap_chip *chip, bool enable) |
| { |
| int rc = 0; |
| u32 delay_us = HAPTICS_BACK_EMF_DELAY_US; |
| u8 val, auto_res_mode_qwd; |
| |
| if (chip->act_type != HAP_LRA) |
| return 0; |
| |
| if (chip->revid->pmic_subtype == PM660_SUBTYPE) |
| auto_res_mode_qwd = (chip->ares_cfg.auto_res_mode == |
| HAP_PM660_AUTO_RES_QWD); |
| else |
| auto_res_mode_qwd = (chip->ares_cfg.auto_res_mode == |
| HAP_AUTO_RES_QWD); |
| |
| /* |
| * Do not enable auto resonance if auto mode is enabled and auto |
| * resonance mode is QWD, meaning short pattern. |
| */ |
| if (chip->lra_auto_mode && auto_res_mode_qwd && enable) { |
| pr_debug("auto_mode enabled, not enabling auto_res\n"); |
| return 0; |
| } |
| |
| /* |
| * For auto resonance detection to work properly, sufficient back-emf |
| * has to be generated. In general, back-emf takes some time to build |
| * up. When the auto resonance mode is chosen as QWD, high-z will be |
| * applied for every LRA cycle and hence there won't be enough back-emf |
| * at the start-up. Hence, the motor needs to vibrate for few LRA cycles |
| * after the PLAY bit is asserted. Enable the auto resonance after |
| * 'time_required_to_generate_back_emf_us' is completed. |
| */ |
| |
| if (auto_res_mode_qwd && enable) |
| usleep_range(delay_us, delay_us + 1); |
| |
| val = enable ? AUTO_RES_EN_BIT : 0; |
| |
| if (chip->revid->pmic_subtype == PM660_SUBTYPE) |
| rc = qpnp_haptics_masked_write_reg(chip, |
| HAP_AUTO_RES_CTRL_REG(chip), |
| AUTO_RES_EN_BIT, val); |
| else |
| rc = qpnp_haptics_masked_write_reg(chip, HAP_TEST2_REG(chip), |
| AUTO_RES_EN_BIT, val); |
| if (rc < 0) |
| return rc; |
| |
| if (enable) |
| chip->status_flags |= AUTO_RESONANCE_ENABLED; |
| else |
| chip->status_flags &= ~AUTO_RESONANCE_ENABLED; |
| |
| pr_debug("auto_res %sabled\n", enable ? "en" : "dis"); |
| return rc; |
| } |
| |
| static int qpnp_haptics_update_rate_cfg(struct hap_chip *chip, u16 play_rate) |
| { |
| int rc; |
| u8 val[2]; |
| |
| if (chip->last_rate_cfg == play_rate) { |
| pr_debug("Same rate_cfg %x\n", play_rate); |
| return 0; |
| } |
| |
| val[0] = play_rate & HAP_RATE_CFG1_MASK; |
| val[1] = (play_rate >> HAP_RATE_CFG2_SHIFT) & HAP_RATE_CFG2_MASK; |
| rc = qpnp_haptics_write_reg(chip, HAP_RATE_CFG1_REG(chip), val, 2); |
| if (rc < 0) |
| return rc; |
| |
| pr_debug("Play rate code 0x%x\n", play_rate); |
| chip->last_rate_cfg = play_rate; |
| return 0; |
| } |
| |
| static void qpnp_haptics_update_lra_frequency(struct hap_chip *chip) |
| { |
| u8 lra_auto_res[2], val; |
| u32 play_rate_code; |
| u16 rate_cfg; |
| int rc; |
| |
| rc = qpnp_haptics_read_reg(chip, HAP_LRA_AUTO_RES_LO_REG(chip), |
| lra_auto_res, 2); |
| if (rc < 0) { |
| pr_err("Error in reading LRA_AUTO_RES_LO/HI, rc=%d\n", rc); |
| return; |
| } |
| |
| play_rate_code = |
| (lra_auto_res[1] & 0xF0) << 4 | (lra_auto_res[0] & 0xFF); |
| |
| pr_debug("lra_auto_res_lo = 0x%x lra_auto_res_hi = 0x%x play_rate_code = 0x%x\n", |
| lra_auto_res[0], lra_auto_res[1], play_rate_code); |
| |
| rc = qpnp_haptics_read_reg(chip, HAP_STATUS_1_REG(chip), &val, 1); |
| if (rc < 0) |
| return; |
| |
| /* |
| * If the drive period code read from AUTO_RES_LO and AUTO_RES_HI |
| * registers is more than the max limit percent variation or less |
| * than the min limit percent variation specified through DT, then |
| * auto-resonance is disabled. |
| */ |
| |
| if ((val & AUTO_RES_ERROR_BIT) || |
| ((play_rate_code <= chip->drive_period_code_min_limit) || |
| (play_rate_code >= chip->drive_period_code_max_limit))) { |
| if (val & AUTO_RES_ERROR_BIT) |
| pr_debug("Auto-resonance error %x\n", val); |
| else |
| pr_debug("play rate %x out of bounds [min: 0x%x, max: 0x%x]\n", |
| play_rate_code, |
| chip->drive_period_code_min_limit, |
| chip->drive_period_code_max_limit); |
| rc = qpnp_haptics_auto_res_enable(chip, false); |
| if (rc < 0) |
| pr_debug("Auto-resonance disable failed\n"); |
| return; |
| } |
| |
| /* |
| * bits[7:4] of AUTO_RES_HI should be written to bits[3:0] of RATE_CFG2 |
| */ |
| lra_auto_res[1] >>= 4; |
| rate_cfg = lra_auto_res[1] << 8 | lra_auto_res[0]; |
| rc = qpnp_haptics_update_rate_cfg(chip, rate_cfg); |
| if (rc < 0) |
| pr_debug("Error in updating rate_cfg\n"); |
| } |
| |
| #define MAX_RETRIES 5 |
| #define HAP_CYCLES 4 |
| static bool is_haptics_idle(struct hap_chip *chip) |
| { |
| unsigned long wait_time_us; |
| int rc, i; |
| u8 val; |
| |
| rc = qpnp_haptics_read_reg(chip, HAP_STATUS_1_REG(chip), &val, 1); |
| if (rc < 0) |
| return false; |
| |
| if (!(val & HAP_BUSY_BIT)) |
| return true; |
| |
| if (chip->play_time_ms <= 20) |
| wait_time_us = chip->play_time_ms * 1000; |
| else |
| wait_time_us = chip->wave_play_rate_us * HAP_CYCLES; |
| |
| for (i = 0; i < MAX_RETRIES; i++) { |
| /* wait for play_rate cycles */ |
| usleep_range(wait_time_us, wait_time_us + 1); |
| |
| if (chip->play_mode == HAP_DIRECT || |
| chip->play_mode == HAP_PWM) |
| return true; |
| |
| rc = qpnp_haptics_read_reg(chip, HAP_STATUS_1_REG(chip), &val, |
| 1); |
| if (rc < 0) |
| return false; |
| |
| if (!(val & HAP_BUSY_BIT)) |
| return true; |
| } |
| |
| if (i >= MAX_RETRIES && (val & HAP_BUSY_BIT)) { |
| pr_debug("Haptics Busy after %d retries\n", i); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static int qpnp_haptics_mod_enable(struct hap_chip *chip, bool enable) |
| { |
| u8 val; |
| int rc; |
| |
| if (chip->module_en == enable) |
| return 0; |
| |
| if (!enable) { |
| if (!is_haptics_idle(chip)) |
| pr_debug("Disabling module forcibly\n"); |
| } |
| |
| val = enable ? HAP_EN_BIT : 0; |
| rc = qpnp_haptics_write_reg(chip, HAP_EN_CTL_REG(chip), &val, 1); |
| if (rc < 0) |
| return rc; |
| |
| chip->module_en = enable; |
| return 0; |
| } |
| |
| static int qpnp_haptics_play_control(struct hap_chip *chip, |
| enum hap_play_control ctrl) |
| { |
| u8 val; |
| int rc; |
| |
| switch (ctrl) { |
| case HAP_STOP: |
| val = 0; |
| break; |
| case HAP_PAUSE: |
| val = PAUSE_BIT; |
| break; |
| case HAP_PLAY: |
| val = PLAY_BIT; |
| break; |
| default: |
| return 0; |
| } |
| |
| rc = qpnp_haptics_write_reg(chip, HAP_PLAY_REG(chip), &val, 1); |
| if (rc < 0) { |
| pr_err("Error in writing to PLAY_REG, rc=%d\n", rc); |
| return rc; |
| } |
| |
| pr_debug("haptics play ctrl: %d\n", ctrl); |
| return rc; |
| } |
| |
| #define AUTO_RES_ERR_POLL_TIME_NS (20 * NSEC_PER_MSEC) |
| static int qpnp_haptics_play(struct hap_chip *chip, bool enable) |
| { |
| int rc = 0, time_ms = chip->play_time_ms; |
| |
| if (chip->perm_disable && enable) |
| return 0; |
| |
| mutex_lock(&chip->play_lock); |
| |
| if (enable) { |
| if (chip->play_mode == HAP_PWM) { |
| rc = pwm_enable(chip->pwm_data.pwm_dev); |
| if (rc < 0) { |
| pr_err("Error in enabling PWM, rc=%d\n", rc); |
| goto out; |
| } |
| } |
| |
| rc = qpnp_haptics_auto_res_enable(chip, false); |
| if (rc < 0) { |
| pr_err("Error in disabling auto_res, rc=%d\n", rc); |
| goto out; |
| } |
| |
| rc = qpnp_haptics_mod_enable(chip, true); |
| if (rc < 0) { |
| pr_err("Error in enabling module, rc=%d\n", rc); |
| goto out; |
| } |
| |
| rc = qpnp_haptics_play_control(chip, HAP_PLAY); |
| if (rc < 0) { |
| pr_err("Error in enabling play, rc=%d\n", rc); |
| goto out; |
| } |
| |
| if (chip->play_mode != HAP_BUFFER) |
| hrtimer_start(&chip->stop_timer, |
| ktime_set(time_ms / MSEC_PER_SEC, |
| (time_ms % MSEC_PER_SEC) * NSEC_PER_MSEC), |
| HRTIMER_MODE_REL); |
| |
| rc = qpnp_haptics_auto_res_enable(chip, true); |
| if (rc < 0) { |
| pr_err("Error in enabling auto_res, rc=%d\n", rc); |
| goto out; |
| } |
| |
| if (is_sw_lra_auto_resonance_control(chip)) |
| hrtimer_start(&chip->auto_res_err_poll_timer, |
| ktime_set(0, AUTO_RES_ERR_POLL_TIME_NS), |
| HRTIMER_MODE_REL); |
| } else { |
| rc = qpnp_haptics_play_control(chip, HAP_STOP); |
| if (rc < 0) { |
| pr_err("Error in disabling play, rc=%d\n", rc); |
| goto out; |
| } |
| |
| if (is_sw_lra_auto_resonance_control(chip)) { |
| if (chip->status_flags & AUTO_RESONANCE_ENABLED) |
| qpnp_haptics_update_lra_frequency(chip); |
| hrtimer_cancel(&chip->auto_res_err_poll_timer); |
| } |
| |
| if (chip->play_mode == HAP_PWM) |
| pwm_disable(chip->pwm_data.pwm_dev); |
| } |
| |
| out: |
| mutex_unlock(&chip->play_lock); |
| return rc; |
| } |
| |
| static void qpnp_haptics_work(struct work_struct *work) |
| { |
| struct hap_chip *chip = container_of(work, struct hap_chip, |
| haptics_work); |
| int rc; |
| bool enable; |
| |
| enable = atomic_read(&chip->state); |
| pr_debug("state: %d\n", enable); |
| rc = qpnp_haptics_play(chip, enable); |
| if (rc < 0) |
| pr_err("Error in %sing haptics, rc=%d\n", |
| enable ? "play" : "stopp", rc); |
| } |
| |
| static enum hrtimer_restart hap_stop_timer(struct hrtimer *timer) |
| { |
| struct hap_chip *chip = container_of(timer, struct hap_chip, |
| stop_timer); |
| |
| atomic_set(&chip->state, 0); |
| schedule_work(&chip->haptics_work); |
| |
| return HRTIMER_NORESTART; |
| } |
| |
| static enum hrtimer_restart hap_auto_res_err_poll_timer(struct hrtimer *timer) |
| { |
| struct hap_chip *chip = container_of(timer, struct hap_chip, |
| auto_res_err_poll_timer); |
| |
| if (!(chip->status_flags & AUTO_RESONANCE_ENABLED)) |
| return HRTIMER_NORESTART; |
| |
| qpnp_haptics_update_lra_frequency(chip); |
| hrtimer_forward(&chip->auto_res_err_poll_timer, ktime_get(), |
| ktime_set(0, AUTO_RES_ERR_POLL_TIME_NS)); |
| |
| return HRTIMER_NORESTART; |
| } |
| |
| static int qpnp_haptics_suspend(struct device *dev) |
| { |
| struct hap_chip *chip = dev_get_drvdata(dev); |
| int rc; |
| |
| rc = qpnp_haptics_play(chip, false); |
| if (rc < 0) |
| pr_err("Error in stopping haptics, rc=%d\n", rc); |
| |
| rc = qpnp_haptics_mod_enable(chip, false); |
| if (rc < 0) |
| pr_err("Error in disabling module, rc=%d\n", rc); |
| |
| return 0; |
| } |
| |
| static int qpnp_haptics_wave_rep_config(struct hap_chip *chip, |
| enum hap_rep_type type) |
| { |
| int rc; |
| u8 val = 0, mask = 0; |
| |
| if (type & HAP_WAVE_REPEAT) { |
| if (chip->wave_rep_cnt < WF_REPEAT_MIN) |
| chip->wave_rep_cnt = WF_REPEAT_MIN; |
| else if (chip->wave_rep_cnt > WF_REPEAT_MAX) |
| chip->wave_rep_cnt = WF_REPEAT_MAX; |
| mask = WF_REPEAT_MASK; |
| val = ilog2(chip->wave_rep_cnt) << WF_REPEAT_SHIFT; |
| } |
| |
| if (type & HAP_WAVE_SAMP_REPEAT) { |
| if (chip->wave_s_rep_cnt < WF_S_REPEAT_MIN) |
| chip->wave_s_rep_cnt = WF_S_REPEAT_MIN; |
| else if (chip->wave_s_rep_cnt > WF_S_REPEAT_MAX) |
| chip->wave_s_rep_cnt = WF_S_REPEAT_MAX; |
| mask |= WF_S_REPEAT_MASK; |
| val |= ilog2(chip->wave_s_rep_cnt); |
| } |
| |
| rc = qpnp_haptics_masked_write_reg(chip, HAP_WF_REPEAT_REG(chip), |
| mask, val); |
| return rc; |
| } |
| |
| /* configuration api for buffer mode */ |
| static int qpnp_haptics_buffer_config(struct hap_chip *chip, u32 *wave_samp, |
| bool overdrive) |
| { |
| u8 buf[HAP_WAVE_SAMP_LEN]; |
| u32 *ptr; |
| int rc, i; |
| |
| if (wave_samp) { |
| ptr = wave_samp; |
| } else { |
| if (chip->wave_samp_idx >= ARRAY_SIZE(chip->wave_samp)) { |
| pr_err("Incorrect wave_samp_idx %d\n", |
| chip->wave_samp_idx); |
| return -EINVAL; |
| } |
| |
| ptr = &chip->wave_samp[chip->wave_samp_idx]; |
| } |
| |
| /* Don't set override bit in waveform sample for PM660 */ |
| if (chip->revid->pmic_subtype == PM660_SUBTYPE) |
| overdrive = false; |
| |
| /* Configure WAVE_SAMPLE1 to WAVE_SAMPLE8 register */ |
| for (i = 0; i < HAP_WAVE_SAMP_LEN; i++) { |
| buf[i] = ptr[i]; |
| if (buf[i]) |
| buf[i] |= (overdrive ? HAP_WF_OVD_BIT : 0); |
| } |
| |
| rc = qpnp_haptics_write_reg(chip, HAP_WF_S1_REG(chip), buf, |
| HAP_WAVE_SAMP_LEN); |
| return rc; |
| } |
| |
| /* configuration api for pwm */ |
| static int qpnp_haptics_pwm_config(struct hap_chip *chip) |
| { |
| u8 val = 0; |
| int rc; |
| |
| if (chip->ext_pwm_freq_khz == 0) |
| return 0; |
| |
| /* Configure the EXTERNAL_PWM register */ |
| if (chip->ext_pwm_freq_khz <= EXT_PWM_FREQ_25_KHZ) { |
| chip->ext_pwm_freq_khz = EXT_PWM_FREQ_25_KHZ; |
| val = 0; |
| } else if (chip->ext_pwm_freq_khz <= EXT_PWM_FREQ_50_KHZ) { |
| chip->ext_pwm_freq_khz = EXT_PWM_FREQ_50_KHZ; |
| val = 1; |
| } else if (chip->ext_pwm_freq_khz <= EXT_PWM_FREQ_75_KHZ) { |
| chip->ext_pwm_freq_khz = EXT_PWM_FREQ_75_KHZ; |
| val = 2; |
| } else { |
| chip->ext_pwm_freq_khz = EXT_PWM_FREQ_100_KHZ; |
| val = 3; |
| } |
| |
| rc = qpnp_haptics_masked_write_reg(chip, HAP_EXT_PWM_REG(chip), |
| EXT_PWM_FREQ_SEL_MASK, val); |
| if (rc < 0) |
| return rc; |
| |
| if (chip->ext_pwm_dtest_line < 0 || |
| chip->ext_pwm_dtest_line > PWM_MAX_DTEST_LINES) { |
| pr_err("invalid dtest line\n"); |
| return -EINVAL; |
| } |
| |
| if (chip->ext_pwm_dtest_line > 0) { |
| /* disable auto res for PWM mode */ |
| val = chip->ext_pwm_dtest_line << HAP_EXT_PWM_DTEST_SHIFT; |
| rc = qpnp_haptics_masked_write_reg(chip, HAP_TEST2_REG(chip), |
| HAP_EXT_PWM_DTEST_MASK | AUTO_RES_EN_BIT, val); |
| if (rc < 0) |
| return rc; |
| } |
| |
| rc = pwm_config(chip->pwm_data.pwm_dev, |
| chip->pwm_data.duty_us * NSEC_PER_USEC, |
| chip->pwm_data.period_us * NSEC_PER_USEC); |
| if (rc < 0) { |
| pr_err("pwm_config failed, rc=%d\n", rc); |
| return rc; |
| } |
| |
| return 0; |
| } |
| |
| static int qpnp_haptics_lra_auto_res_config(struct hap_chip *chip, |
| struct hap_lra_ares_param *tmp_cfg) |
| { |
| struct hap_lra_ares_param *ares_cfg; |
| int rc; |
| u8 val = 0, mask = 0; |
| |
| /* disable auto resonance for ERM */ |
| if (chip->act_type == HAP_ERM) { |
| val = 0x00; |
| rc = qpnp_haptics_write_reg(chip, HAP_LRA_AUTO_RES_REG(chip), |
| &val, 1); |
| return rc; |
| } |
| |
| if (chip->auto_res_err_recovery_hw) { |
| rc = qpnp_haptics_masked_write_reg(chip, |
| HAP_AUTO_RES_CTRL_REG(chip), |
| AUTO_RES_ERR_RECOVERY_BIT, AUTO_RES_ERR_RECOVERY_BIT); |
| if (rc < 0) |
| return rc; |
| } |
| |
| if (tmp_cfg) |
| ares_cfg = tmp_cfg; |
| else |
| ares_cfg = &chip->ares_cfg; |
| |
| if (ares_cfg->lra_res_cal_period < HAP_RES_CAL_PERIOD_MIN) |
| ares_cfg->lra_res_cal_period = HAP_RES_CAL_PERIOD_MIN; |
| |
| if (chip->revid->pmic_subtype == PM660_SUBTYPE) { |
| if (ares_cfg->lra_res_cal_period > |
| HAP_PM660_RES_CAL_PERIOD_MAX) |
| ares_cfg->lra_res_cal_period = |
| HAP_PM660_RES_CAL_PERIOD_MAX; |
| |
| if (ares_cfg->auto_res_mode == HAP_PM660_AUTO_RES_QWD) |
| ares_cfg->lra_res_cal_period = 0; |
| |
| if (ares_cfg->lra_res_cal_period) |
| val = ilog2(ares_cfg->lra_res_cal_period / |
| HAP_RES_CAL_PERIOD_MIN) + 1; |
| } else { |
| if (ares_cfg->lra_res_cal_period > HAP_RES_CAL_PERIOD_MAX) |
| ares_cfg->lra_res_cal_period = |
| HAP_RES_CAL_PERIOD_MAX; |
| |
| if (ares_cfg->lra_res_cal_period) |
| val = ilog2(ares_cfg->lra_res_cal_period / |
| HAP_RES_CAL_PERIOD_MIN); |
| } |
| |
| if (chip->revid->pmic_subtype == PM660_SUBTYPE) { |
| val |= ares_cfg->auto_res_mode << PM660_AUTO_RES_MODE_SHIFT; |
| mask = PM660_AUTO_RES_MODE_BIT; |
| val |= ares_cfg->lra_high_z << PM660_CAL_DURATION_SHIFT; |
| mask |= PM660_CAL_DURATION_MASK; |
| if (ares_cfg->lra_qwd_drive_duration != -EINVAL) { |
| val |= ares_cfg->lra_qwd_drive_duration << |
| PM660_QWD_DRIVE_DURATION_SHIFT; |
| mask |= PM660_QWD_DRIVE_DURATION_BIT; |
| } |
| if (ares_cfg->calibrate_at_eop != -EINVAL) { |
| val |= ares_cfg->calibrate_at_eop << |
| PM660_CAL_EOP_SHIFT; |
| mask |= PM660_CAL_EOP_BIT; |
| } |
| mask |= PM660_LRA_RES_CAL_MASK; |
| } else { |
| val |= (ares_cfg->auto_res_mode << LRA_AUTO_RES_MODE_SHIFT); |
| val |= (ares_cfg->lra_high_z << LRA_HIGH_Z_SHIFT); |
| mask = LRA_AUTO_RES_MODE_MASK | LRA_HIGH_Z_MASK | |
| LRA_RES_CAL_MASK; |
| } |
| |
| pr_debug("mode: %d hi_z period: %d cal_period: %d\n", |
| ares_cfg->auto_res_mode, ares_cfg->lra_high_z, |
| ares_cfg->lra_res_cal_period); |
| |
| rc = qpnp_haptics_masked_write_reg(chip, HAP_LRA_AUTO_RES_REG(chip), |
| mask, val); |
| return rc; |
| } |
| |
| /* configuration api for play mode */ |
| static int qpnp_haptics_play_mode_config(struct hap_chip *chip) |
| { |
| u8 val = 0; |
| int rc; |
| |
| if (!is_haptics_idle(chip)) |
| return -EBUSY; |
| |
| val = chip->play_mode << HAP_WF_SOURCE_SHIFT; |
| rc = qpnp_haptics_masked_write_reg(chip, HAP_SEL_REG(chip), |
| HAP_WF_SOURCE_MASK, val); |
| if (!rc) { |
| if (chip->play_mode == HAP_BUFFER && !chip->play_irq_en) { |
| enable_irq(chip->play_irq); |
| chip->play_irq_en = true; |
| } else if (chip->play_mode != HAP_BUFFER && chip->play_irq_en) { |
| disable_irq(chip->play_irq); |
| chip->play_irq_en = false; |
| } |
| } |
| return rc; |
| } |
| |
| /* configuration api for max voltage */ |
| static int qpnp_haptics_vmax_config(struct hap_chip *chip, int vmax_mv, |
| bool overdrive) |
| { |
| u8 val = 0; |
| int rc; |
| |
| if (vmax_mv < 0) |
| return -EINVAL; |
| |
| /* Allow setting override bit in VMAX_CFG only for PM660 */ |
| if (chip->revid->pmic_subtype != PM660_SUBTYPE) |
| overdrive = false; |
| |
| if (vmax_mv < HAP_VMAX_MIN_MV) |
| vmax_mv = HAP_VMAX_MIN_MV; |
| else if (vmax_mv > HAP_VMAX_MAX_MV) |
| vmax_mv = HAP_VMAX_MAX_MV; |
| |
| val = DIV_ROUND_CLOSEST(vmax_mv, HAP_VMAX_MIN_MV); |
| val <<= HAP_VMAX_SHIFT; |
| if (overdrive) |
| val |= HAP_VMAX_OVD_BIT; |
| |
| rc = qpnp_haptics_masked_write_reg(chip, HAP_VMAX_CFG_REG(chip), |
| HAP_VMAX_MASK | HAP_VMAX_OVD_BIT, val); |
| return rc; |
| } |
| |
| /* configuration api for ilim */ |
| static int qpnp_haptics_ilim_config(struct hap_chip *chip) |
| { |
| int rc; |
| |
| if (chip->ilim_ma < HAP_ILIM_400_MA) |
| chip->ilim_ma = HAP_ILIM_400_MA; |
| else if (chip->ilim_ma > HAP_ILIM_800_MA) |
| chip->ilim_ma = HAP_ILIM_800_MA; |
| |
| rc = qpnp_haptics_masked_write_reg(chip, HAP_ILIM_CFG_REG(chip), |
| HAP_ILIM_SEL_MASK, chip->ilim_ma); |
| return rc; |
| } |
| |
| /* configuration api for short circuit debounce */ |
| static int qpnp_haptics_sc_deb_config(struct hap_chip *chip) |
| { |
| u8 val = 0; |
| int rc; |
| |
| if (chip->sc_deb_cycles < HAP_SC_DEB_CYCLES_MIN) |
| chip->sc_deb_cycles = HAP_SC_DEB_CYCLES_MIN; |
| else if (chip->sc_deb_cycles > HAP_SC_DEB_CYCLES_MAX) |
| chip->sc_deb_cycles = HAP_SC_DEB_CYCLES_MAX; |
| |
| if (chip->sc_deb_cycles != HAP_SC_DEB_CYCLES_MIN) |
| val = ilog2(chip->sc_deb_cycles / |
| HAP_DEF_SC_DEB_CYCLES) + 1; |
| else |
| val = HAP_SC_DEB_CYCLES_MIN; |
| |
| rc = qpnp_haptics_masked_write_reg(chip, HAP_SC_DEB_REG(chip), |
| HAP_SC_DEB_MASK, val); |
| |
| return rc; |
| } |
| |
| static int qpnp_haptics_brake_config(struct hap_chip *chip, u32 *brake_pat) |
| { |
| int rc, i; |
| u32 temp, *ptr; |
| u8 val; |
| |
| /* Configure BRAKE register */ |
| rc = qpnp_haptics_masked_write_reg(chip, HAP_EN_CTL2_REG(chip), |
| BRAKE_EN_BIT, (u8)chip->en_brake); |
| if (rc < 0) |
| return rc; |
| |
| /* If braking is not enabled, skip configuring brake pattern */ |
| if (!chip->en_brake) |
| return 0; |
| |
| if (!brake_pat) |
| ptr = chip->brake_pat; |
| else |
| ptr = brake_pat; |
| |
| for (i = HAP_BRAKE_PAT_LEN - 1, val = 0; i >= 0; i--) { |
| ptr[i] &= HAP_BRAKE_PAT_MASK; |
| temp = i << 1; |
| val |= ptr[i] << temp; |
| } |
| |
| rc = qpnp_haptics_write_reg(chip, HAP_BRAKE_REG(chip), &val, 1); |
| if (rc < 0) |
| return rc; |
| |
| return 0; |
| } |
| |
| static int qpnp_haptics_auto_mode_config(struct hap_chip *chip, int time_ms) |
| { |
| struct hap_lra_ares_param ares_cfg; |
| enum hap_mode old_play_mode; |
| u8 old_ares_mode; |
| u32 brake_pat[HAP_BRAKE_PAT_LEN] = {0}; |
| u32 wave_samp[HAP_WAVE_SAMP_LEN] = {0}; |
| int rc, vmax_mv; |
| |
| if (!chip->lra_auto_mode) |
| return false; |
| |
| /* For now, this is for LRA only */ |
| if (chip->act_type == HAP_ERM) |
| return 0; |
| |
| old_ares_mode = chip->ares_cfg.auto_res_mode; |
| old_play_mode = chip->play_mode; |
| pr_debug("auto_mode, time_ms: %d\n", time_ms); |
| if (time_ms <= 20) { |
| wave_samp[0] = HAP_WF_SAMP_MAX; |
| wave_samp[1] = HAP_WF_SAMP_MAX; |
| if (time_ms > 15) |
| wave_samp[2] = HAP_WF_SAMP_MAX; |
| |
| /* short pattern */ |
| rc = qpnp_haptics_parse_buffer_dt(chip); |
| if (!rc) { |
| rc = qpnp_haptics_wave_rep_config(chip, |
| HAP_WAVE_REPEAT | HAP_WAVE_SAMP_REPEAT); |
| if (rc < 0) { |
| pr_err("Error in configuring wave_rep config %d\n", |
| rc); |
| return rc; |
| } |
| |
| rc = qpnp_haptics_buffer_config(chip, wave_samp, true); |
| if (rc < 0) { |
| pr_err("Error in configuring buffer mode %d\n", |
| rc); |
| return rc; |
| } |
| } |
| |
| ares_cfg.lra_high_z = HAP_LRA_HIGH_Z_OPT1; |
| ares_cfg.lra_res_cal_period = HAP_RES_CAL_PERIOD_MIN; |
| if (chip->revid->pmic_subtype == PM660_SUBTYPE) { |
| ares_cfg.auto_res_mode = HAP_PM660_AUTO_RES_QWD; |
| ares_cfg.lra_qwd_drive_duration = 0; |
| ares_cfg.calibrate_at_eop = 0; |
| } else { |
| ares_cfg.auto_res_mode = HAP_AUTO_RES_QWD; |
| ares_cfg.lra_qwd_drive_duration = -EINVAL; |
| ares_cfg.calibrate_at_eop = -EINVAL; |
| } |
| |
| vmax_mv = HAP_VMAX_MAX_MV; |
| rc = qpnp_haptics_vmax_config(chip, vmax_mv, true); |
| if (rc < 0) |
| return rc; |
| |
| rc = qpnp_haptics_brake_config(chip, brake_pat); |
| if (rc < 0) |
| return rc; |
| |
| /* enable play_irq for buffer mode */ |
| if (chip->play_irq >= 0 && !chip->play_irq_en) { |
| enable_irq(chip->play_irq); |
| chip->play_irq_en = true; |
| } |
| |
| chip->play_mode = HAP_BUFFER; |
| chip->wave_shape = HAP_WAVE_SQUARE; |
| } else { |
| /* long pattern */ |
| ares_cfg.lra_high_z = HAP_LRA_HIGH_Z_OPT1; |
| if (chip->revid->pmic_subtype == PM660_SUBTYPE) { |
| ares_cfg.auto_res_mode = HAP_PM660_AUTO_RES_ZXD; |
| ares_cfg.lra_res_cal_period = |
| HAP_PM660_RES_CAL_PERIOD_MAX; |
| ares_cfg.lra_qwd_drive_duration = 0; |
| ares_cfg.calibrate_at_eop = 1; |
| } else { |
| ares_cfg.auto_res_mode = HAP_AUTO_RES_ZXD_EOP; |
| ares_cfg.lra_res_cal_period = HAP_RES_CAL_PERIOD_MAX; |
| ares_cfg.lra_qwd_drive_duration = -EINVAL; |
| ares_cfg.calibrate_at_eop = -EINVAL; |
| } |
| |
| vmax_mv = chip->vmax_mv; |
| rc = qpnp_haptics_vmax_config(chip, vmax_mv, false); |
| if (rc < 0) |
| return rc; |
| |
| brake_pat[0] = 0x3; |
| rc = qpnp_haptics_brake_config(chip, brake_pat); |
| if (rc < 0) |
| return rc; |
| |
| /* enable play_irq for direct mode */ |
| if (chip->play_irq >= 0 && chip->play_irq_en) { |
| disable_irq(chip->play_irq); |
| chip->play_irq_en = false; |
| } |
| |
| chip->play_mode = HAP_DIRECT; |
| chip->wave_shape = HAP_WAVE_SINE; |
| } |
| |
| chip->ares_cfg.auto_res_mode = ares_cfg.auto_res_mode; |
| rc = qpnp_haptics_lra_auto_res_config(chip, &ares_cfg); |
| if (rc < 0) { |
| chip->ares_cfg.auto_res_mode = old_ares_mode; |
| return rc; |
| } |
| |
| rc = qpnp_haptics_play_mode_config(chip); |
| if (rc < 0) { |
| chip->play_mode = old_play_mode; |
| return rc; |
| } |
| |
| rc = qpnp_haptics_masked_write_reg(chip, HAP_CFG2_REG(chip), |
| HAP_LRA_RES_TYPE_MASK, chip->wave_shape); |
| if (rc < 0) |
| return rc; |
| |
| return 0; |
| } |
| |
| static irqreturn_t qpnp_haptics_play_irq_handler(int irq, void *data) |
| { |
| struct hap_chip *chip = data; |
| int rc; |
| |
| if (chip->play_mode != HAP_BUFFER) |
| goto irq_handled; |
| |
| if (chip->wave_samp[chip->wave_samp_idx + HAP_WAVE_SAMP_LEN] > 0) { |
| chip->wave_samp_idx += HAP_WAVE_SAMP_LEN; |
| if (chip->wave_samp_idx >= ARRAY_SIZE(chip->wave_samp)) { |
| pr_debug("Samples over\n"); |
| /* fall through to stop playing */ |
| } else { |
| pr_debug("moving to next sample set %d\n", |
| chip->wave_samp_idx); |
| |
| rc = qpnp_haptics_buffer_config(chip, NULL, false); |
| if (rc < 0) { |
| pr_err("Error in configuring buffer, rc=%d\n", |
| rc); |
| goto irq_handled; |
| } |
| |
| /* |
| * Moving to next set of wave sample. No need to stop |
| * or change the play control. Just return. |
| */ |
| goto irq_handled; |
| } |
| } |
| |
| rc = qpnp_haptics_play_control(chip, HAP_STOP); |
| if (rc < 0) { |
| pr_err("Error in disabling play, rc=%d\n", rc); |
| goto irq_handled; |
| } |
| chip->wave_samp_idx = 0; |
| |
| irq_handled: |
| return IRQ_HANDLED; |
| } |
| |
| #define SC_MAX_COUNT 5 |
| #define SC_COUNT_RST_DELAY_US 1000000 |
| static irqreturn_t qpnp_haptics_sc_irq_handler(int irq, void *data) |
| { |
| struct hap_chip *chip = data; |
| int rc; |
| u8 val; |
| s64 sc_delta_time_us; |
| ktime_t temp; |
| |
| rc = qpnp_haptics_read_reg(chip, HAP_STATUS_1_REG(chip), &val, 1); |
| if (rc < 0) |
| goto irq_handled; |
| |
| if (!(val & SC_FLAG_BIT)) { |
| chip->sc_count = 0; |
| goto irq_handled; |
| } |
| |
| pr_debug("SC irq fired\n"); |
| temp = ktime_get(); |
| sc_delta_time_us = ktime_us_delta(temp, chip->last_sc_time); |
| chip->last_sc_time = temp; |
| |
| if (sc_delta_time_us > SC_COUNT_RST_DELAY_US) |
| chip->sc_count = 0; |
| else |
| chip->sc_count++; |
| |
| val = SC_CLR_BIT; |
| rc = qpnp_haptics_write_reg(chip, HAP_SC_CLR_REG(chip), &val, 1); |
| if (rc < 0) { |
| pr_err("Error in writing to SC_CLR_REG, rc=%d\n", rc); |
| goto irq_handled; |
| } |
| |
| /* Permanently disable module if SC condition persists */ |
| if (chip->sc_count > SC_MAX_COUNT) { |
| pr_crit("SC persists, permanently disabling haptics\n"); |
| rc = qpnp_haptics_mod_enable(chip, false); |
| if (rc < 0) { |
| pr_err("Error in disabling module, rc=%d\n", rc); |
| goto irq_handled; |
| } |
| chip->perm_disable = true; |
| } |
| |
| irq_handled: |
| return IRQ_HANDLED; |
| } |
| |
| /* All sysfs show/store functions below */ |
| |
| #define HAP_STR_SIZE 128 |
| static int parse_string(const char *in_buf, char *out_buf) |
| { |
| int i; |
| |
| if (snprintf(out_buf, HAP_STR_SIZE, "%s", in_buf) > HAP_STR_SIZE) |
| return -EINVAL; |
| |
| for (i = 0; i < strlen(out_buf); i++) { |
| if (out_buf[i] == ' ' || out_buf[i] == '\n' || |
| out_buf[i] == '\t') { |
| out_buf[i] = '\0'; |
| break; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static ssize_t qpnp_haptics_show_state(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct led_classdev *cdev = dev_get_drvdata(dev); |
| struct hap_chip *chip = container_of(cdev, struct hap_chip, cdev); |
| |
| return snprintf(buf, PAGE_SIZE, "%d\n", chip->module_en); |
| } |
| |
| static ssize_t qpnp_haptics_store_state(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| |
| /* At present, nothing to do with setting state */ |
| return count; |
| } |
| |
| static ssize_t qpnp_haptics_show_duration(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct led_classdev *cdev = dev_get_drvdata(dev); |
| struct hap_chip *chip = container_of(cdev, struct hap_chip, cdev); |
| ktime_t time_rem; |
| s64 time_us = 0; |
| |
| if (hrtimer_active(&chip->stop_timer)) { |
| time_rem = hrtimer_get_remaining(&chip->stop_timer); |
| time_us = ktime_to_us(time_rem); |
| } |
| |
| return snprintf(buf, PAGE_SIZE, "%lld\n", time_us / 1000); |
| return 0; |
| } |
| |
| static ssize_t qpnp_haptics_store_duration(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| struct led_classdev *cdev = dev_get_drvdata(dev); |
| struct hap_chip *chip = container_of(cdev, struct hap_chip, cdev); |
| u32 val; |
| int rc; |
| |
| rc = kstrtouint(buf, 0, &val); |
| if (rc < 0) |
| return rc; |
| |
| /* setting 0 on duration is NOP for now */ |
| if (val <= 0) |
| return count; |
| |
| if (val > chip->max_play_time_ms) |
| return -EINVAL; |
| |
| mutex_lock(&chip->param_lock); |
| rc = qpnp_haptics_auto_mode_config(chip, val); |
| if (rc < 0) { |
| pr_err("Unable to do auto mode config\n"); |
| mutex_unlock(&chip->param_lock); |
| return rc; |
| } |
| |
| chip->play_time_ms = val; |
| mutex_unlock(&chip->param_lock); |
| |
| return count; |
| } |
| |
| static ssize_t qpnp_haptics_show_activate(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| /* For now nothing to show */ |
| return snprintf(buf, PAGE_SIZE, "%d\n", 0); |
| } |
| |
| static ssize_t qpnp_haptics_store_activate(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| struct led_classdev *cdev = dev_get_drvdata(dev); |
| struct hap_chip *chip = container_of(cdev, struct hap_chip, cdev); |
| u32 val; |
| int rc; |
| |
| rc = kstrtouint(buf, 0, &val); |
| if (rc < 0) |
| return rc; |
| |
| if (val != 0 && val != 1) |
| return count; |
| |
| if (val) { |
| hrtimer_cancel(&chip->stop_timer); |
| if (is_sw_lra_auto_resonance_control(chip)) |
| hrtimer_cancel(&chip->auto_res_err_poll_timer); |
| cancel_work_sync(&chip->haptics_work); |
| |
| atomic_set(&chip->state, 1); |
| schedule_work(&chip->haptics_work); |
| } else { |
| rc = qpnp_haptics_mod_enable(chip, false); |
| if (rc < 0) { |
| pr_err("Error in disabling module, rc=%d\n", rc); |
| return rc; |
| } |
| } |
| |
| return count; |
| } |
| |
| static ssize_t qpnp_haptics_show_play_mode(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct led_classdev *cdev = dev_get_drvdata(dev); |
| struct hap_chip *chip = container_of(cdev, struct hap_chip, cdev); |
| char *str; |
| |
| if (chip->play_mode == HAP_BUFFER) |
| str = "buffer"; |
| else if (chip->play_mode == HAP_DIRECT) |
| str = "direct"; |
| else if (chip->play_mode == HAP_AUDIO) |
| str = "audio"; |
| else if (chip->play_mode == HAP_PWM) |
| str = "pwm"; |
| else |
| return -EINVAL; |
| |
| return snprintf(buf, PAGE_SIZE, "%s\n", str); |
| } |
| |
| static ssize_t qpnp_haptics_store_play_mode(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| struct led_classdev *cdev = dev_get_drvdata(dev); |
| struct hap_chip *chip = container_of(cdev, struct hap_chip, cdev); |
| char str[HAP_STR_SIZE + 1]; |
| int rc = 0, temp, old_mode; |
| |
| rc = parse_string(buf, str); |
| if (rc < 0) |
| return rc; |
| |
| if (strcmp(str, "buffer") == 0) |
| temp = HAP_BUFFER; |
| else if (strcmp(str, "direct") == 0) |
| temp = HAP_DIRECT; |
| else if (strcmp(str, "audio") == 0) |
| temp = HAP_AUDIO; |
| else if (strcmp(str, "pwm") == 0) |
| temp = HAP_PWM; |
| else |
| return -EINVAL; |
| |
| if (temp == chip->play_mode) |
| return count; |
| |
| if (temp == HAP_BUFFER) { |
| rc = qpnp_haptics_parse_buffer_dt(chip); |
| if (!rc) { |
| rc = qpnp_haptics_wave_rep_config(chip, |
| HAP_WAVE_REPEAT | HAP_WAVE_SAMP_REPEAT); |
| if (rc < 0) { |
| pr_err("Error in configuring wave_rep config %d\n", |
| rc); |
| return rc; |
| } |
| } |
| |
| rc = qpnp_haptics_buffer_config(chip, NULL, true); |
| } else if (temp == HAP_PWM) { |
| rc = qpnp_haptics_parse_pwm_dt(chip); |
| if (!rc) |
| rc = qpnp_haptics_pwm_config(chip); |
| } |
| |
| if (rc < 0) |
| return rc; |
| |
| rc = qpnp_haptics_mod_enable(chip, false); |
| if (rc < 0) |
| return rc; |
| |
| old_mode = chip->play_mode; |
| chip->play_mode = temp; |
| rc = qpnp_haptics_play_mode_config(chip); |
| if (rc < 0) { |
| chip->play_mode = old_mode; |
| return rc; |
| } |
| |
| if (chip->play_mode == HAP_AUDIO) { |
| rc = qpnp_haptics_mod_enable(chip, true); |
| if (rc < 0) { |
| chip->play_mode = old_mode; |
| return rc; |
| } |
| } |
| |
| return count; |
| } |
| |
| static ssize_t qpnp_haptics_show_wf_samp(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct led_classdev *cdev = dev_get_drvdata(dev); |
| struct hap_chip *chip = container_of(cdev, struct hap_chip, cdev); |
| char str[HAP_STR_SIZE + 1]; |
| char *ptr = str; |
| int i, len = 0; |
| |
| for (i = 0; i < ARRAY_SIZE(chip->wave_samp); i++) { |
| len = scnprintf(ptr, HAP_STR_SIZE, "%x ", chip->wave_samp[i]); |
| ptr += len; |
| } |
| ptr[len] = '\0'; |
| |
| return snprintf(buf, PAGE_SIZE, "%s\n", str); |
| } |
| |
| static ssize_t qpnp_haptics_store_wf_samp(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| struct led_classdev *cdev = dev_get_drvdata(dev); |
| struct hap_chip *chip = container_of(cdev, struct hap_chip, cdev); |
| u8 samp[HAP_WAVE_SAMP_SET_LEN] = {0}; |
| int bytes_read, rc; |
| unsigned int data, pos = 0, i = 0; |
| |
| while (pos < count && i < ARRAY_SIZE(samp) && |
| sscanf(buf + pos, "%x%n", &data, &bytes_read) == 1) { |
| /* bit 0 is not used in WF_Sx */ |
| samp[i++] = data & GENMASK(7, 1); |
| pos += bytes_read; |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(chip->wave_samp); i++) |
| chip->wave_samp[i] = samp[i]; |
| |
| rc = qpnp_haptics_buffer_config(chip, NULL, false); |
| if (rc < 0) { |
| pr_err("Error in configuring buffer mode %d\n", rc); |
| return rc; |
| } |
| |
| return count; |
| } |
| |
| static ssize_t qpnp_haptics_show_wf_rep_count(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct led_classdev *cdev = dev_get_drvdata(dev); |
| struct hap_chip *chip = container_of(cdev, struct hap_chip, cdev); |
| |
| return snprintf(buf, PAGE_SIZE, "%d\n", chip->wave_rep_cnt); |
| } |
| |
| static ssize_t qpnp_haptics_store_wf_rep_count(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| struct led_classdev *cdev = dev_get_drvdata(dev); |
| struct hap_chip *chip = container_of(cdev, struct hap_chip, cdev); |
| int data, rc, old_wave_rep_cnt; |
| |
| rc = kstrtoint(buf, 10, &data); |
| if (rc < 0) |
| return rc; |
| |
| old_wave_rep_cnt = chip->wave_rep_cnt; |
| chip->wave_rep_cnt = data; |
| rc = qpnp_haptics_wave_rep_config(chip, HAP_WAVE_REPEAT); |
| if (rc < 0) { |
| chip->wave_rep_cnt = old_wave_rep_cnt; |
| return rc; |
| } |
| |
| return count; |
| } |
| |
| static ssize_t qpnp_haptics_show_wf_s_rep_count(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct led_classdev *cdev = dev_get_drvdata(dev); |
| struct hap_chip *chip = container_of(cdev, struct hap_chip, cdev); |
| |
| return snprintf(buf, PAGE_SIZE, "%d\n", chip->wave_s_rep_cnt); |
| } |
| |
| static ssize_t qpnp_haptics_store_wf_s_rep_count(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| struct led_classdev *cdev = dev_get_drvdata(dev); |
| struct hap_chip *chip = container_of(cdev, struct hap_chip, cdev); |
| int data, rc, old_wave_s_rep_cnt; |
| |
| rc = kstrtoint(buf, 10, &data); |
| if (rc < 0) |
| return rc; |
| |
| old_wave_s_rep_cnt = chip->wave_s_rep_cnt; |
| chip->wave_s_rep_cnt = data; |
| rc = qpnp_haptics_wave_rep_config(chip, HAP_WAVE_SAMP_REPEAT); |
| if (rc < 0) { |
| chip->wave_s_rep_cnt = old_wave_s_rep_cnt; |
| return rc; |
| } |
| |
| return count; |
| } |
| |
| static ssize_t qpnp_haptics_show_vmax(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct led_classdev *cdev = dev_get_drvdata(dev); |
| struct hap_chip *chip = container_of(cdev, struct hap_chip, cdev); |
| |
| return snprintf(buf, PAGE_SIZE, "%d\n", chip->vmax_mv); |
| } |
| |
| static ssize_t qpnp_haptics_store_vmax(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| struct led_classdev *cdev = dev_get_drvdata(dev); |
| struct hap_chip *chip = container_of(cdev, struct hap_chip, cdev); |
| int data, rc, old_vmax_mv; |
| |
| rc = kstrtoint(buf, 10, &data); |
| if (rc < 0) |
| return rc; |
| |
| old_vmax_mv = chip->vmax_mv; |
| chip->vmax_mv = data; |
| rc = qpnp_haptics_vmax_config(chip, chip->vmax_mv, false); |
| if (rc < 0) { |
| chip->vmax_mv = old_vmax_mv; |
| return rc; |
| } |
| |
| return count; |
| } |
| |
| static ssize_t qpnp_haptics_show_lra_auto_mode(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct led_classdev *cdev = dev_get_drvdata(dev); |
| struct hap_chip *chip = container_of(cdev, struct hap_chip, cdev); |
| |
| return snprintf(buf, PAGE_SIZE, "%d\n", chip->lra_auto_mode); |
| } |
| |
| static ssize_t qpnp_haptics_store_lra_auto_mode(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t count) |
| { |
| struct led_classdev *cdev = dev_get_drvdata(dev); |
| struct hap_chip *chip = container_of(cdev, struct hap_chip, cdev); |
| int rc, data; |
| |
| rc = kstrtoint(buf, 10, &data); |
| if (rc < 0) |
| return rc; |
| |
| if (data != 0 && data != 1) |
| return count; |
| |
| chip->lra_auto_mode = !!data; |
| return count; |
| } |
| |
| static struct device_attribute qpnp_haptics_attrs[] = { |
| __ATTR(state, 0664, qpnp_haptics_show_state, qpnp_haptics_store_state), |
| __ATTR(duration, 0664, qpnp_haptics_show_duration, |
| qpnp_haptics_store_duration), |
| __ATTR(activate, 0664, qpnp_haptics_show_activate, |
| qpnp_haptics_store_activate), |
| __ATTR(play_mode, 0664, qpnp_haptics_show_play_mode, |
| qpnp_haptics_store_play_mode), |
| __ATTR(wf_samp, 0664, qpnp_haptics_show_wf_samp, |
| qpnp_haptics_store_wf_samp), |
| __ATTR(wf_rep_count, 0664, qpnp_haptics_show_wf_rep_count, |
| qpnp_haptics_store_wf_rep_count), |
| __ATTR(wf_s_rep_count, 0664, qpnp_haptics_show_wf_s_rep_count, |
| qpnp_haptics_store_wf_s_rep_count), |
| __ATTR(vmax_mv, 0664, qpnp_haptics_show_vmax, qpnp_haptics_store_vmax), |
| __ATTR(lra_auto_mode, 0664, qpnp_haptics_show_lra_auto_mode, |
| qpnp_haptics_store_lra_auto_mode), |
| }; |
| |
| /* Dummy functions for brightness */ |
| static |
| enum led_brightness qpnp_haptics_brightness_get(struct led_classdev *cdev) |
| { |
| return 0; |
| } |
| |
| static void qpnp_haptics_brightness_set(struct led_classdev *cdev, |
| enum led_brightness level) |
| { |
| } |
| |
| static int qpnp_haptics_config(struct hap_chip *chip) |
| { |
| u8 rc_clk_err_deci_pct; |
| u16 play_rate = 0; |
| int rc; |
| |
| /* Configure the CFG1 register for actuator type */ |
| rc = qpnp_haptics_masked_write_reg(chip, HAP_CFG1_REG(chip), |
| HAP_ACT_TYPE_MASK, chip->act_type); |
| if (rc < 0) |
| return rc; |
| |
| /* Configure auto resonance parameters */ |
| rc = qpnp_haptics_lra_auto_res_config(chip, NULL); |
| if (rc < 0) |
| return rc; |
| |
| /* Configure the PLAY MODE register */ |
| rc = qpnp_haptics_play_mode_config(chip); |
| if (rc < 0) |
| return rc; |
| |
| /* Configure the VMAX register */ |
| rc = qpnp_haptics_vmax_config(chip, chip->vmax_mv, false); |
| if (rc < 0) |
| return rc; |
| |
| /* Configure the ILIM register */ |
| rc = qpnp_haptics_ilim_config(chip); |
| if (rc < 0) |
| return rc; |
| |
| /* Configure the short circuit debounce register */ |
| rc = qpnp_haptics_sc_deb_config(chip); |
| if (rc < 0) |
| return rc; |
| |
| /* Configure the WAVE SHAPE register */ |
| rc = qpnp_haptics_masked_write_reg(chip, HAP_CFG2_REG(chip), |
| HAP_LRA_RES_TYPE_MASK, chip->wave_shape); |
| if (rc < 0) |
| return rc; |
| |
| play_rate = chip->wave_play_rate_us / HAP_RATE_CFG_STEP_US; |
| |
| /* |
| * The frequency of 19.2 MHz RC clock is subject to variation. Currently |
| * some PMI chips have MISC_TRIM_ERROR_RC19P2_CLK register present in |
| * MISC peripheral. This register holds the trim error of RC clock. |
| */ |
| if (chip->act_type == HAP_LRA && chip->misc_clk_trim_error_reg) { |
| /* |
| * Error is available in bits[3:0] and each LSB is 0.7%. |
| * Bit 7 is the sign bit for error code. If it is set, then a |
| * negative error correction needs to be made. Otherwise, a |
| * positive error correction needs to be made. |
| */ |
| rc_clk_err_deci_pct = (chip->clk_trim_error_code & 0x0F) * 7; |
| if (chip->clk_trim_error_code & BIT(7)) |
| play_rate = (play_rate * |
| (1000 - rc_clk_err_deci_pct)) / 1000; |
| else |
| play_rate = (play_rate * |
| (1000 + rc_clk_err_deci_pct)) / 1000; |
| |
| pr_debug("TRIM register = 0x%x, play_rate=%d\n", |
| chip->clk_trim_error_code, play_rate); |
| } |
| |
| /* |
| * Configure RATE_CFG1 and RATE_CFG2 registers. |
| * Note: For ERM these registers act as play rate and |
| * for LRA these represent resonance period |
| */ |
| rc = qpnp_haptics_update_rate_cfg(chip, play_rate); |
| if (chip->act_type == HAP_LRA) { |
| chip->drive_period_code_max_limit = (play_rate * |
| (100 + chip->drive_period_code_max_var_pct)) / 100; |
| chip->drive_period_code_min_limit = (play_rate * |
| (100 - chip->drive_period_code_min_var_pct)) / 100; |
| pr_debug("Drive period code max limit %x min limit %x\n", |
| chip->drive_period_code_max_limit, |
| chip->drive_period_code_min_limit); |
| } |
| |
| rc = qpnp_haptics_brake_config(chip, NULL); |
| if (rc < 0) |
| return rc; |
| |
| if (chip->play_mode == HAP_BUFFER) { |
| rc = qpnp_haptics_wave_rep_config(chip, |
| HAP_WAVE_REPEAT | HAP_WAVE_SAMP_REPEAT); |
| if (rc < 0) |
| return rc; |
| |
| rc = qpnp_haptics_buffer_config(chip, NULL, false); |
| } else if (chip->play_mode == HAP_PWM) { |
| rc = qpnp_haptics_pwm_config(chip); |
| } else if (chip->play_mode == HAP_AUDIO) { |
| rc = qpnp_haptics_mod_enable(chip, true); |
| } |
| |
| if (rc < 0) |
| return rc; |
| |
| /* setup play irq */ |
| if (chip->play_irq >= 0) { |
| rc = devm_request_threaded_irq(&chip->pdev->dev, chip->play_irq, |
| NULL, qpnp_haptics_play_irq_handler, IRQF_ONESHOT, |
| "haptics_play_irq", chip); |
| if (rc < 0) { |
| pr_err("Unable to request play(%d) IRQ(err:%d)\n", |
| chip->play_irq, rc); |
| return rc; |
| } |
| |
| /* use play_irq only for buffer mode */ |
| if (chip->play_mode != HAP_BUFFER) { |
| disable_irq(chip->play_irq); |
| chip->play_irq_en = false; |
| } |
| } |
| |
| /* setup short circuit irq */ |
| if (chip->sc_irq >= 0) { |
| rc = devm_request_threaded_irq(&chip->pdev->dev, chip->sc_irq, |
| NULL, qpnp_haptics_sc_irq_handler, IRQF_ONESHOT, |
| "haptics_sc_irq", chip); |
| if (rc < 0) { |
| pr_err("Unable to request sc(%d) IRQ(err:%d)\n", |
| chip->sc_irq, rc); |
| return rc; |
| } |
| } |
| |
| return rc; |
| } |
| |
| static int qpnp_haptics_parse_buffer_dt(struct hap_chip *chip) |
| { |
| struct device_node *node = chip->pdev->dev.of_node; |
| u32 temp; |
| int rc, i, wf_samp_len; |
| |
| if (chip->wave_rep_cnt > 0 || chip->wave_s_rep_cnt > 0) |
| return 0; |
| |
| chip->wave_rep_cnt = WF_REPEAT_MIN; |
| rc = of_property_read_u32(node, "qcom,wave-rep-cnt", &temp); |
| if (!rc) { |
| chip->wave_rep_cnt = temp; |
| } else if (rc != -EINVAL) { |
| pr_err("Unable to read rep cnt rc=%d\n", rc); |
| return rc; |
| } |
| |
| chip->wave_s_rep_cnt = WF_S_REPEAT_MIN; |
| rc = of_property_read_u32(node, |
| "qcom,wave-samp-rep-cnt", &temp); |
| if (!rc) { |
| chip->wave_s_rep_cnt = temp; |
| } else if (rc != -EINVAL) { |
| pr_err("Unable to read samp rep cnt rc=%d\n", rc); |
| return rc; |
| } |
| |
| wf_samp_len = of_property_count_elems_of_size(node, |
| "qcom,wave-samples", sizeof(u32)); |
| if (wf_samp_len > 0) { |
| if (wf_samp_len > HAP_WAVE_SAMP_SET_LEN) { |
| pr_err("Invalid length for wave samples\n"); |
| return -EINVAL; |
| } |
| |
| rc = of_property_read_u32_array(node, "qcom,wave-samples", |
| chip->wave_samp, wf_samp_len); |
| if (rc < 0) { |
| pr_err("Error in reading qcom,wave-samples, rc=%d\n", |
| rc); |
| return rc; |
| } |
| } else { |
| /* Use default values */ |
| for (i = 0; i < HAP_WAVE_SAMP_LEN; i++) |
| chip->wave_samp[i] = HAP_WF_SAMP_MAX; |
| } |
| |
| return 0; |
| } |
| |
| static int qpnp_haptics_parse_pwm_dt(struct hap_chip *chip) |
| { |
| struct device_node *node = chip->pdev->dev.of_node; |
| u32 temp; |
| int rc; |
| |
| if (chip->pwm_data.period_us > 0 && chip->pwm_data.duty_us > 0) |
| return 0; |
| |
| chip->pwm_data.pwm_dev = of_pwm_get(node, NULL); |
| if (IS_ERR(chip->pwm_data.pwm_dev)) { |
| rc = PTR_ERR(chip->pwm_data.pwm_dev); |
| pr_err("Cannot get PWM device rc=%d\n", rc); |
| chip->pwm_data.pwm_dev = NULL; |
| return rc; |
| } |
| |
| rc = of_property_read_u32(node, "qcom,period-us", &temp); |
| if (!rc) { |
| chip->pwm_data.period_us = temp; |
| } else { |
| pr_err("Cannot read PWM period rc=%d\n", rc); |
| return rc; |
| } |
| |
| rc = of_property_read_u32(node, "qcom,duty-us", &temp); |
| if (!rc) { |
| chip->pwm_data.duty_us = temp; |
| } else { |
| pr_err("Cannot read PWM duty rc=%d\n", rc); |
| return rc; |
| } |
| |
| rc = of_property_read_u32(node, "qcom,ext-pwm-dtest-line", &temp); |
| if (!rc) |
| chip->ext_pwm_dtest_line = temp; |
| |
| rc = of_property_read_u32(node, "qcom,ext-pwm-freq-khz", &temp); |
| if (!rc) { |
| chip->ext_pwm_freq_khz = temp; |
| } else if (rc != -EINVAL) { |
| pr_err("Unable to read ext pwm freq rc=%d\n", rc); |
| return rc; |
| } |
| |
| return 0; |
| } |
| |
| static int qpnp_haptics_parse_dt(struct hap_chip *chip) |
| { |
| struct device_node *node = chip->pdev->dev.of_node; |
| struct device_node *revid_node, *misc_node; |
| const char *temp_str; |
| int rc, temp; |
| |
| rc = of_property_read_u32(node, "reg", &temp); |
| if (rc < 0) { |
| pr_err("Couldn't find reg in node = %s rc = %d\n", |
| node->full_name, rc); |
| return rc; |
| } |
| |
| if (temp <= 0) { |
| pr_err("Invalid base address %x\n", temp); |
| return -EINVAL; |
| } |
| chip->base = (u16)temp; |
| |
| revid_node = of_parse_phandle(node, "qcom,pmic-revid", 0); |
| if (!revid_node) { |
| pr_err("Missing qcom,pmic-revid property\n"); |
| return -EINVAL; |
| } |
| |
| chip->revid = get_revid_data(revid_node); |
| of_node_put(revid_node); |
| if (IS_ERR_OR_NULL(chip->revid)) { |
| pr_err("Unable to get pmic_revid rc=%ld\n", |
| PTR_ERR(chip->revid)); |
| /* |
| * the revid peripheral must be registered, any failure |
| * here only indicates that the rev-id module has not |
| * probed yet. |
| */ |
| return -EPROBE_DEFER; |
| } |
| |
| if (of_find_property(node, "qcom,pmic-misc", NULL)) { |
| misc_node = of_parse_phandle(node, "qcom,pmic-misc", 0); |
| if (!misc_node) |
| return -EINVAL; |
| |
| rc = of_property_read_u32(node, "qcom,misc-clk-trim-error-reg", |
| &chip->misc_clk_trim_error_reg); |
| if (rc < 0 || !chip->misc_clk_trim_error_reg) { |
| pr_err("Invalid or missing misc-clk-trim-error-reg\n"); |
| of_node_put(misc_node); |
| return rc; |
| } |
| |
| rc = qpnp_misc_read_reg(misc_node, |
| chip->misc_clk_trim_error_reg, |
| &chip->clk_trim_error_code); |
| if (rc < 0) { |
| pr_err("Couldn't get clk_trim_error_code, rc=%d\n", rc); |
| of_node_put(misc_node); |
| return -EPROBE_DEFER; |
| } |
| of_node_put(misc_node); |
| } |
| |
| chip->play_irq = platform_get_irq_byname(chip->pdev, "hap-play-irq"); |
| if (chip->play_irq < 0) { |
| pr_err("Unable to get play irq\n"); |
| return chip->play_irq; |
| } |
| |
| chip->sc_irq = platform_get_irq_byname(chip->pdev, "hap-sc-irq"); |
| if (chip->sc_irq < 0) { |
| pr_err("Unable to get sc irq\n"); |
| return chip->sc_irq; |
| } |
| |
| chip->act_type = HAP_LRA; |
| rc = of_property_read_u32(node, "qcom,actuator-type", &temp); |
| if (!rc) { |
| if (temp != HAP_LRA && temp != HAP_ERM) { |
| pr_err("Incorrect actuator type\n"); |
| return -EINVAL; |
| } |
| chip->act_type = temp; |
| } |
| |
| chip->lra_auto_mode = of_property_read_bool(node, "qcom,lra-auto-mode"); |
| |
| rc = of_property_read_string(node, "qcom,play-mode", &temp_str); |
| if (!rc) { |
| if (strcmp(temp_str, "direct") == 0) |
| chip->play_mode = HAP_DIRECT; |
| else if (strcmp(temp_str, "buffer") == 0) |
| chip->play_mode = HAP_BUFFER; |
| else if (strcmp(temp_str, "pwm") == 0) |
| chip->play_mode = HAP_PWM; |
| else if (strcmp(temp_str, "audio") == 0) |
| chip->play_mode = HAP_AUDIO; |
| else { |
| pr_err("Invalid play mode\n"); |
| return -EINVAL; |
| } |
| } else { |
| if (rc == -EINVAL && chip->act_type == HAP_LRA) { |
| pr_info("Play mode not specified, using auto mode\n"); |
| chip->lra_auto_mode = true; |
| } else { |
| pr_err("Unable to read play mode\n"); |
| return rc; |
| } |
| } |
| |
| chip->max_play_time_ms = HAP_MAX_PLAY_TIME_MS; |
| rc = of_property_read_u32(node, "qcom,max-play-time-ms", &temp); |
| if (!rc) { |
| chip->max_play_time_ms = temp; |
| } else if (rc != -EINVAL) { |
| pr_err("Unable to read max-play-time rc=%d\n", rc); |
| return rc; |
| } |
| |
| chip->vmax_mv = HAP_VMAX_MAX_MV; |
| rc = of_property_read_u32(node, "qcom,vmax-mv", &temp); |
| if (!rc) { |
| chip->vmax_mv = temp; |
| } else if (rc != -EINVAL) { |
| pr_err("Unable to read Vmax rc=%d\n", rc); |
| return rc; |
| } |
| |
| chip->ilim_ma = HAP_ILIM_400_MA; |
| rc = of_property_read_u32(node, "qcom,ilim-ma", &temp); |
| if (!rc) { |
| chip->ilim_ma = (u8)temp; |
| } else if (rc != -EINVAL) { |
| pr_err("Unable to read ILIM rc=%d\n", rc); |
| return rc; |
| } |
| |
| chip->sc_deb_cycles = HAP_DEF_SC_DEB_CYCLES; |
| rc = of_property_read_u32(node, "qcom,sc-dbc-cycles", &temp); |
| if (!rc) { |
| chip->sc_deb_cycles = temp; |
| } else if (rc != -EINVAL) { |
| pr_err("Unable to read sc debounce rc=%d\n", rc); |
| return rc; |
| } |
| |
| chip->wave_shape = HAP_WAVE_SQUARE; |
| rc = of_property_read_string(node, "qcom,wave-shape", &temp_str); |
| if (!rc) { |
| if (strcmp(temp_str, "sine") == 0) |
| chip->wave_shape = HAP_WAVE_SINE; |
| else if (strcmp(temp_str, "square") == 0) |
| chip->wave_shape = HAP_WAVE_SQUARE; |
| else { |
| pr_err("Unsupported wave shape\n"); |
| return -EINVAL; |
| } |
| } else if (rc != -EINVAL) { |
| pr_err("Unable to read wave shape rc=%d\n", rc); |
| return rc; |
| } |
| |
| chip->wave_play_rate_us = HAP_DEF_WAVE_PLAY_RATE_US; |
| rc = of_property_read_u32(node, |
| "qcom,wave-play-rate-us", &temp); |
| if (!rc) { |
| chip->wave_play_rate_us = temp; |
| } else if (rc != -EINVAL) { |
| pr_err("Unable to read play rate rc=%d\n", rc); |
| return rc; |
| } |
| |
| if (chip->wave_play_rate_us < HAP_WAVE_PLAY_RATE_US_MIN) |
| chip->wave_play_rate_us = HAP_WAVE_PLAY_RATE_US_MIN; |
| else if (chip->wave_play_rate_us > HAP_WAVE_PLAY_RATE_US_MAX) |
| chip->wave_play_rate_us = HAP_WAVE_PLAY_RATE_US_MAX; |
| |
| chip->en_brake = of_property_read_bool(node, "qcom,en-brake"); |
| |
| rc = of_property_count_elems_of_size(node, |
| "qcom,brake-pattern", sizeof(u32)); |
| if (rc > 0) { |
| if (rc != HAP_BRAKE_PAT_LEN) { |
| pr_err("Invalid length for brake pattern\n"); |
| return -EINVAL; |
| } |
| |
| rc = of_property_read_u32_array(node, "qcom,brake-pattern", |
| chip->brake_pat, HAP_BRAKE_PAT_LEN); |
| if (rc < 0) { |
| pr_err("Error in reading qcom,brake-pattern, rc=%d\n", |
| rc); |
| return rc; |
| } |
| } |
| |
| /* Read the following properties only for LRA */ |
| if (chip->act_type == HAP_LRA) { |
| rc = of_property_read_string(node, "qcom,lra-auto-res-mode", |
| &temp_str); |
| if (!rc) { |
| if (chip->revid->pmic_subtype == PM660_SUBTYPE) { |
| chip->ares_cfg.auto_res_mode = |
| HAP_PM660_AUTO_RES_QWD; |
| if (strcmp(temp_str, "zxd") == 0) |
| chip->ares_cfg.auto_res_mode = |
| HAP_PM660_AUTO_RES_ZXD; |
| else if (strcmp(temp_str, "qwd") == 0) |
| chip->ares_cfg.auto_res_mode = |
| HAP_PM660_AUTO_RES_QWD; |
| } else { |
| chip->ares_cfg.auto_res_mode = |
| HAP_AUTO_RES_ZXD_EOP; |
| if (strcmp(temp_str, "none") == 0) |
| chip->ares_cfg.auto_res_mode = |
| HAP_AUTO_RES_NONE; |
| else if (strcmp(temp_str, "zxd") == 0) |
| chip->ares_cfg.auto_res_mode = |
| HAP_AUTO_RES_ZXD; |
| else if (strcmp(temp_str, "qwd") == 0) |
| chip->ares_cfg.auto_res_mode = |
| HAP_AUTO_RES_QWD; |
| else if (strcmp(temp_str, "max-qwd") == 0) |
| chip->ares_cfg.auto_res_mode = |
| HAP_AUTO_RES_MAX_QWD; |
| else |
| chip->ares_cfg.auto_res_mode = |
| HAP_AUTO_RES_ZXD_EOP; |
| } |
| } else if (rc != -EINVAL) { |
| pr_err("Unable to read auto res mode rc=%d\n", rc); |
| return rc; |
| } |
| |
| chip->ares_cfg.lra_high_z = HAP_LRA_HIGH_Z_OPT3; |
| rc = of_property_read_string(node, "qcom,lra-high-z", |
| &temp_str); |
| if (!rc) { |
| if (strcmp(temp_str, "none") == 0) |
| chip->ares_cfg.lra_high_z = |
| HAP_LRA_HIGH_Z_NONE; |
| else if (strcmp(temp_str, "opt1") == 0) |
| chip->ares_cfg.lra_high_z = |
| HAP_LRA_HIGH_Z_OPT1; |
| else if (strcmp(temp_str, "opt2") == 0) |
| chip->ares_cfg.lra_high_z = |
| HAP_LRA_HIGH_Z_OPT2; |
| else |
| chip->ares_cfg.lra_high_z = |
| HAP_LRA_HIGH_Z_OPT3; |
| if (chip->revid->pmic_subtype == PM660_SUBTYPE) { |
| if (strcmp(temp_str, "opt0") == 0) |
| chip->ares_cfg.lra_high_z = |
| HAP_LRA_HIGH_Z_NONE; |
| } |
| } else if (rc != -EINVAL) { |
| pr_err("Unable to read LRA high-z rc=%d\n", rc); |
| return rc; |
| } |
| |
| chip->ares_cfg.lra_res_cal_period = HAP_RES_CAL_PERIOD_MAX; |
| rc = of_property_read_u32(node, |
| "qcom,lra-res-cal-period", &temp); |
| if (!rc) { |
| chip->ares_cfg.lra_res_cal_period = temp; |
| } else if (rc != -EINVAL) { |
| pr_err("Unable to read cal period rc=%d\n", rc); |
| return rc; |
| } |
| |
| chip->ares_cfg.lra_qwd_drive_duration = -EINVAL; |
| chip->ares_cfg.calibrate_at_eop = -EINVAL; |
| if (chip->revid->pmic_subtype == PM660_SUBTYPE) { |
| rc = of_property_read_u32(node, |
| "qcom,lra-qwd-drive-duration", |
| &chip->ares_cfg.lra_qwd_drive_duration); |
| if (rc && rc != -EINVAL) { |
| pr_err("Unable to read LRA QWD drive duration rc=%d\n", |
| rc); |
| return rc; |
| } |
| |
| rc = of_property_read_u32(node, |
| "qcom,lra-calibrate-at-eop", |
| &chip->ares_cfg.calibrate_at_eop); |
| if (rc && rc != -EINVAL) { |
| pr_err("Unable to read Calibrate at EOP rc=%d\n", |
| rc); |
| return rc; |
| } |
| } |
| |
| chip->drive_period_code_max_var_pct = 25; |
| rc = of_property_read_u32(node, |
| "qcom,drive-period-code-max-variation-pct", &temp); |
| if (!rc) { |
| if (temp > 0 && temp < 100) |
| chip->drive_period_code_max_var_pct = (u8)temp; |
| } else if (rc != -EINVAL) { |
| pr_err("Unable to read drive period code max var pct rc=%d\n", |
| rc); |
| return rc; |
| } |
| |
| chip->drive_period_code_min_var_pct = 25; |
| rc = of_property_read_u32(node, |
| "qcom,drive-period-code-min-variation-pct", &temp); |
| if (!rc) { |
| if (temp > 0 && temp < 100) |
| chip->drive_period_code_min_var_pct = (u8)temp; |
| } else if (rc != -EINVAL) { |
| pr_err("Unable to read drive period code min var pct rc=%d\n", |
| rc); |
| return rc; |
| } |
| |
| chip->auto_res_err_recovery_hw = |
| of_property_read_bool(node, |
| "qcom,auto-res-err-recovery-hw"); |
| |
| if (chip->revid->pmic_subtype != PM660_SUBTYPE) |
| chip->auto_res_err_recovery_hw = false; |
| } |
| |
| if (rc == -EINVAL) |
| rc = 0; |
| |
| if (chip->play_mode == HAP_BUFFER) |
| rc = qpnp_haptics_parse_buffer_dt(chip); |
| else if (chip->play_mode == HAP_PWM) |
| rc = qpnp_haptics_parse_pwm_dt(chip); |
| |
| return rc; |
| } |
| |
| static int qpnp_haptics_probe(struct platform_device *pdev) |
| { |
| struct hap_chip *chip; |
| int rc, i; |
| |
| chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL); |
| if (!chip) |
| return -ENOMEM; |
| |
| chip->regmap = dev_get_regmap(pdev->dev.parent, NULL); |
| if (!chip->regmap) { |
| dev_err(&pdev->dev, "Couldn't get parent's regmap\n"); |
| return -EINVAL; |
| } |
| |
| chip->pdev = pdev; |
| rc = qpnp_haptics_parse_dt(chip); |
| if (rc < 0) { |
| dev_err(&pdev->dev, "Error in parsing DT parameters, rc=%d\n", |
| rc); |
| return rc; |
| } |
| |
| spin_lock_init(&chip->bus_lock); |
| mutex_init(&chip->play_lock); |
| mutex_init(&chip->param_lock); |
| INIT_WORK(&chip->haptics_work, qpnp_haptics_work); |
| |
| rc = qpnp_haptics_config(chip); |
| if (rc < 0) { |
| dev_err(&pdev->dev, "Error in configuring haptics, rc=%d\n", |
| rc); |
| goto fail; |
| } |
| |
| hrtimer_init(&chip->stop_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); |
| chip->stop_timer.function = hap_stop_timer; |
| hrtimer_init(&chip->auto_res_err_poll_timer, CLOCK_MONOTONIC, |
| HRTIMER_MODE_REL); |
| chip->auto_res_err_poll_timer.function = hap_auto_res_err_poll_timer; |
| dev_set_drvdata(&pdev->dev, chip); |
| |
| chip->cdev.name = "vibrator"; |
| chip->cdev.brightness_get = qpnp_haptics_brightness_get; |
| chip->cdev.brightness_set = qpnp_haptics_brightness_set; |
| chip->cdev.max_brightness = 100; |
| rc = devm_led_classdev_register(&pdev->dev, &chip->cdev); |
| if (rc < 0) { |
| dev_err(&pdev->dev, "Error in registering led class device, rc=%d\n", |
| rc); |
| goto register_fail; |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(qpnp_haptics_attrs); i++) { |
| rc = sysfs_create_file(&chip->cdev.dev->kobj, |
| &qpnp_haptics_attrs[i].attr); |
| if (rc < 0) { |
| dev_err(&pdev->dev, "Error in creating sysfs file, rc=%d\n", |
| rc); |
| goto sysfs_fail; |
| } |
| } |
| |
| return 0; |
| |
| sysfs_fail: |
| for (--i; i >= 0; i--) |
| sysfs_remove_file(&chip->cdev.dev->kobj, |
| &qpnp_haptics_attrs[i].attr); |
| register_fail: |
| cancel_work_sync(&chip->haptics_work); |
| hrtimer_cancel(&chip->auto_res_err_poll_timer); |
| hrtimer_cancel(&chip->stop_timer); |
| fail: |
| mutex_destroy(&chip->play_lock); |
| mutex_destroy(&chip->param_lock); |
| if (chip->pwm_data.pwm_dev) |
| pwm_put(chip->pwm_data.pwm_dev); |
| dev_set_drvdata(&pdev->dev, NULL); |
| return rc; |
| } |
| |
| static int qpnp_haptics_remove(struct platform_device *pdev) |
| { |
| struct hap_chip *chip = dev_get_drvdata(&pdev->dev); |
| |
| cancel_work_sync(&chip->haptics_work); |
| hrtimer_cancel(&chip->auto_res_err_poll_timer); |
| hrtimer_cancel(&chip->stop_timer); |
| mutex_destroy(&chip->play_lock); |
| mutex_destroy(&chip->param_lock); |
| if (chip->pwm_data.pwm_dev) |
| pwm_put(chip->pwm_data.pwm_dev); |
| dev_set_drvdata(&pdev->dev, NULL); |
| |
| return 0; |
| } |
| |
| static const struct dev_pm_ops qpnp_haptics_pm_ops = { |
| .suspend = qpnp_haptics_suspend, |
| }; |
| |
| static const struct of_device_id hap_match_table[] = { |
| { .compatible = "qcom,qpnp-haptics" }, |
| { }, |
| }; |
| |
| static struct platform_driver qpnp_haptics_driver = { |
| .driver = { |
| .name = "qcom,qpnp-haptics", |
| .of_match_table = hap_match_table, |
| .pm = &qpnp_haptics_pm_ops, |
| }, |
| .probe = qpnp_haptics_probe, |
| .remove = qpnp_haptics_remove, |
| }; |
| module_platform_driver(qpnp_haptics_driver); |
| |
| MODULE_DESCRIPTION("QPNP haptics driver"); |
| MODULE_LICENSE("GPL v2"); |