162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0-only 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * VTI CMA3000_D0x Accelerometer driver 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * Copyright (C) 2010 Texas Instruments 662306a36Sopenharmony_ci * Author: Hemanth V <hemanthv@ti.com> 762306a36Sopenharmony_ci */ 862306a36Sopenharmony_ci 962306a36Sopenharmony_ci#include <linux/types.h> 1062306a36Sopenharmony_ci#include <linux/interrupt.h> 1162306a36Sopenharmony_ci#include <linux/delay.h> 1262306a36Sopenharmony_ci#include <linux/slab.h> 1362306a36Sopenharmony_ci#include <linux/input.h> 1462306a36Sopenharmony_ci#include <linux/input/cma3000.h> 1562306a36Sopenharmony_ci#include <linux/module.h> 1662306a36Sopenharmony_ci 1762306a36Sopenharmony_ci#include "cma3000_d0x.h" 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_ci#define CMA3000_WHOAMI 0x00 2062306a36Sopenharmony_ci#define CMA3000_REVID 0x01 2162306a36Sopenharmony_ci#define CMA3000_CTRL 0x02 2262306a36Sopenharmony_ci#define CMA3000_STATUS 0x03 2362306a36Sopenharmony_ci#define CMA3000_RSTR 0x04 2462306a36Sopenharmony_ci#define CMA3000_INTSTATUS 0x05 2562306a36Sopenharmony_ci#define CMA3000_DOUTX 0x06 2662306a36Sopenharmony_ci#define CMA3000_DOUTY 0x07 2762306a36Sopenharmony_ci#define CMA3000_DOUTZ 0x08 2862306a36Sopenharmony_ci#define CMA3000_MDTHR 0x09 2962306a36Sopenharmony_ci#define CMA3000_MDFFTMR 0x0A 3062306a36Sopenharmony_ci#define CMA3000_FFTHR 0x0B 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_ci#define CMA3000_RANGE2G (1 << 7) 3362306a36Sopenharmony_ci#define CMA3000_RANGE8G (0 << 7) 3462306a36Sopenharmony_ci#define CMA3000_BUSI2C (0 << 4) 3562306a36Sopenharmony_ci#define CMA3000_MODEMASK (7 << 1) 3662306a36Sopenharmony_ci#define CMA3000_GRANGEMASK (1 << 7) 3762306a36Sopenharmony_ci 3862306a36Sopenharmony_ci#define CMA3000_STATUS_PERR 1 3962306a36Sopenharmony_ci#define CMA3000_INTSTATUS_FFDET (1 << 2) 4062306a36Sopenharmony_ci 4162306a36Sopenharmony_ci/* Settling time delay in ms */ 4262306a36Sopenharmony_ci#define CMA3000_SETDELAY 30 4362306a36Sopenharmony_ci 4462306a36Sopenharmony_ci/* Delay for clearing interrupt in us */ 4562306a36Sopenharmony_ci#define CMA3000_INTDELAY 44 4662306a36Sopenharmony_ci 4762306a36Sopenharmony_ci 4862306a36Sopenharmony_ci/* 4962306a36Sopenharmony_ci * Bit weights in mg for bit 0, other bits need 5062306a36Sopenharmony_ci * multiply factor 2^n. Eight bit is the sign bit. 5162306a36Sopenharmony_ci */ 5262306a36Sopenharmony_ci#define BIT_TO_2G 18 5362306a36Sopenharmony_ci#define BIT_TO_8G 71 5462306a36Sopenharmony_ci 5562306a36Sopenharmony_cistruct cma3000_accl_data { 5662306a36Sopenharmony_ci const struct cma3000_bus_ops *bus_ops; 5762306a36Sopenharmony_ci const struct cma3000_platform_data *pdata; 5862306a36Sopenharmony_ci 5962306a36Sopenharmony_ci struct device *dev; 6062306a36Sopenharmony_ci struct input_dev *input_dev; 6162306a36Sopenharmony_ci 6262306a36Sopenharmony_ci int bit_to_mg; 6362306a36Sopenharmony_ci int irq; 6462306a36Sopenharmony_ci 6562306a36Sopenharmony_ci int g_range; 6662306a36Sopenharmony_ci u8 mode; 6762306a36Sopenharmony_ci 6862306a36Sopenharmony_ci struct mutex mutex; 6962306a36Sopenharmony_ci bool opened; 7062306a36Sopenharmony_ci bool suspended; 7162306a36Sopenharmony_ci}; 7262306a36Sopenharmony_ci 7362306a36Sopenharmony_ci#define CMA3000_READ(data, reg, msg) \ 7462306a36Sopenharmony_ci (data->bus_ops->read(data->dev, reg, msg)) 7562306a36Sopenharmony_ci#define CMA3000_SET(data, reg, val, msg) \ 7662306a36Sopenharmony_ci ((data)->bus_ops->write(data->dev, reg, val, msg)) 7762306a36Sopenharmony_ci 7862306a36Sopenharmony_ci/* 7962306a36Sopenharmony_ci * Conversion for each of the eight modes to g, depending 8062306a36Sopenharmony_ci * on G range i.e 2G or 8G. Some modes always operate in 8162306a36Sopenharmony_ci * 8G. 8262306a36Sopenharmony_ci */ 8362306a36Sopenharmony_ci 8462306a36Sopenharmony_cistatic int mode_to_mg[8][2] = { 8562306a36Sopenharmony_ci { 0, 0 }, 8662306a36Sopenharmony_ci { BIT_TO_8G, BIT_TO_2G }, 8762306a36Sopenharmony_ci { BIT_TO_8G, BIT_TO_2G }, 8862306a36Sopenharmony_ci { BIT_TO_8G, BIT_TO_8G }, 8962306a36Sopenharmony_ci { BIT_TO_8G, BIT_TO_8G }, 9062306a36Sopenharmony_ci { BIT_TO_8G, BIT_TO_2G }, 9162306a36Sopenharmony_ci { BIT_TO_8G, BIT_TO_2G }, 9262306a36Sopenharmony_ci { 0, 0}, 9362306a36Sopenharmony_ci}; 9462306a36Sopenharmony_ci 9562306a36Sopenharmony_cistatic void decode_mg(struct cma3000_accl_data *data, int *datax, 9662306a36Sopenharmony_ci int *datay, int *dataz) 9762306a36Sopenharmony_ci{ 9862306a36Sopenharmony_ci /* Data in 2's complement, convert to mg */ 9962306a36Sopenharmony_ci *datax = ((s8)*datax) * data->bit_to_mg; 10062306a36Sopenharmony_ci *datay = ((s8)*datay) * data->bit_to_mg; 10162306a36Sopenharmony_ci *dataz = ((s8)*dataz) * data->bit_to_mg; 10262306a36Sopenharmony_ci} 10362306a36Sopenharmony_ci 10462306a36Sopenharmony_cistatic irqreturn_t cma3000_thread_irq(int irq, void *dev_id) 10562306a36Sopenharmony_ci{ 10662306a36Sopenharmony_ci struct cma3000_accl_data *data = dev_id; 10762306a36Sopenharmony_ci int datax, datay, dataz, intr_status; 10862306a36Sopenharmony_ci u8 ctrl, mode, range; 10962306a36Sopenharmony_ci 11062306a36Sopenharmony_ci intr_status = CMA3000_READ(data, CMA3000_INTSTATUS, "interrupt status"); 11162306a36Sopenharmony_ci if (intr_status < 0) 11262306a36Sopenharmony_ci return IRQ_NONE; 11362306a36Sopenharmony_ci 11462306a36Sopenharmony_ci /* Check if free fall is detected, report immediately */ 11562306a36Sopenharmony_ci if (intr_status & CMA3000_INTSTATUS_FFDET) { 11662306a36Sopenharmony_ci input_report_abs(data->input_dev, ABS_MISC, 1); 11762306a36Sopenharmony_ci input_sync(data->input_dev); 11862306a36Sopenharmony_ci } else { 11962306a36Sopenharmony_ci input_report_abs(data->input_dev, ABS_MISC, 0); 12062306a36Sopenharmony_ci } 12162306a36Sopenharmony_ci 12262306a36Sopenharmony_ci datax = CMA3000_READ(data, CMA3000_DOUTX, "X"); 12362306a36Sopenharmony_ci datay = CMA3000_READ(data, CMA3000_DOUTY, "Y"); 12462306a36Sopenharmony_ci dataz = CMA3000_READ(data, CMA3000_DOUTZ, "Z"); 12562306a36Sopenharmony_ci 12662306a36Sopenharmony_ci ctrl = CMA3000_READ(data, CMA3000_CTRL, "ctrl"); 12762306a36Sopenharmony_ci mode = (ctrl & CMA3000_MODEMASK) >> 1; 12862306a36Sopenharmony_ci range = (ctrl & CMA3000_GRANGEMASK) >> 7; 12962306a36Sopenharmony_ci 13062306a36Sopenharmony_ci data->bit_to_mg = mode_to_mg[mode][range]; 13162306a36Sopenharmony_ci 13262306a36Sopenharmony_ci /* Interrupt not for this device */ 13362306a36Sopenharmony_ci if (data->bit_to_mg == 0) 13462306a36Sopenharmony_ci return IRQ_NONE; 13562306a36Sopenharmony_ci 13662306a36Sopenharmony_ci /* Decode register values to milli g */ 13762306a36Sopenharmony_ci decode_mg(data, &datax, &datay, &dataz); 13862306a36Sopenharmony_ci 13962306a36Sopenharmony_ci input_report_abs(data->input_dev, ABS_X, datax); 14062306a36Sopenharmony_ci input_report_abs(data->input_dev, ABS_Y, datay); 14162306a36Sopenharmony_ci input_report_abs(data->input_dev, ABS_Z, dataz); 14262306a36Sopenharmony_ci input_sync(data->input_dev); 14362306a36Sopenharmony_ci 14462306a36Sopenharmony_ci return IRQ_HANDLED; 14562306a36Sopenharmony_ci} 14662306a36Sopenharmony_ci 14762306a36Sopenharmony_cistatic int cma3000_reset(struct cma3000_accl_data *data) 14862306a36Sopenharmony_ci{ 14962306a36Sopenharmony_ci int val; 15062306a36Sopenharmony_ci 15162306a36Sopenharmony_ci /* Reset sequence */ 15262306a36Sopenharmony_ci CMA3000_SET(data, CMA3000_RSTR, 0x02, "Reset"); 15362306a36Sopenharmony_ci CMA3000_SET(data, CMA3000_RSTR, 0x0A, "Reset"); 15462306a36Sopenharmony_ci CMA3000_SET(data, CMA3000_RSTR, 0x04, "Reset"); 15562306a36Sopenharmony_ci 15662306a36Sopenharmony_ci /* Settling time delay */ 15762306a36Sopenharmony_ci mdelay(10); 15862306a36Sopenharmony_ci 15962306a36Sopenharmony_ci val = CMA3000_READ(data, CMA3000_STATUS, "Status"); 16062306a36Sopenharmony_ci if (val < 0) { 16162306a36Sopenharmony_ci dev_err(data->dev, "Reset failed\n"); 16262306a36Sopenharmony_ci return val; 16362306a36Sopenharmony_ci } 16462306a36Sopenharmony_ci 16562306a36Sopenharmony_ci if (val & CMA3000_STATUS_PERR) { 16662306a36Sopenharmony_ci dev_err(data->dev, "Parity Error\n"); 16762306a36Sopenharmony_ci return -EIO; 16862306a36Sopenharmony_ci } 16962306a36Sopenharmony_ci 17062306a36Sopenharmony_ci return 0; 17162306a36Sopenharmony_ci} 17262306a36Sopenharmony_ci 17362306a36Sopenharmony_cistatic int cma3000_poweron(struct cma3000_accl_data *data) 17462306a36Sopenharmony_ci{ 17562306a36Sopenharmony_ci const struct cma3000_platform_data *pdata = data->pdata; 17662306a36Sopenharmony_ci u8 ctrl = 0; 17762306a36Sopenharmony_ci int ret; 17862306a36Sopenharmony_ci 17962306a36Sopenharmony_ci if (data->g_range == CMARANGE_2G) { 18062306a36Sopenharmony_ci ctrl = (data->mode << 1) | CMA3000_RANGE2G; 18162306a36Sopenharmony_ci } else if (data->g_range == CMARANGE_8G) { 18262306a36Sopenharmony_ci ctrl = (data->mode << 1) | CMA3000_RANGE8G; 18362306a36Sopenharmony_ci } else { 18462306a36Sopenharmony_ci dev_info(data->dev, 18562306a36Sopenharmony_ci "Invalid G range specified, assuming 8G\n"); 18662306a36Sopenharmony_ci ctrl = (data->mode << 1) | CMA3000_RANGE8G; 18762306a36Sopenharmony_ci } 18862306a36Sopenharmony_ci 18962306a36Sopenharmony_ci ctrl |= data->bus_ops->ctrl_mod; 19062306a36Sopenharmony_ci 19162306a36Sopenharmony_ci CMA3000_SET(data, CMA3000_MDTHR, pdata->mdthr, 19262306a36Sopenharmony_ci "Motion Detect Threshold"); 19362306a36Sopenharmony_ci CMA3000_SET(data, CMA3000_MDFFTMR, pdata->mdfftmr, 19462306a36Sopenharmony_ci "Time register"); 19562306a36Sopenharmony_ci CMA3000_SET(data, CMA3000_FFTHR, pdata->ffthr, 19662306a36Sopenharmony_ci "Free fall threshold"); 19762306a36Sopenharmony_ci ret = CMA3000_SET(data, CMA3000_CTRL, ctrl, "Mode setting"); 19862306a36Sopenharmony_ci if (ret < 0) 19962306a36Sopenharmony_ci return -EIO; 20062306a36Sopenharmony_ci 20162306a36Sopenharmony_ci msleep(CMA3000_SETDELAY); 20262306a36Sopenharmony_ci 20362306a36Sopenharmony_ci return 0; 20462306a36Sopenharmony_ci} 20562306a36Sopenharmony_ci 20662306a36Sopenharmony_cistatic int cma3000_poweroff(struct cma3000_accl_data *data) 20762306a36Sopenharmony_ci{ 20862306a36Sopenharmony_ci int ret; 20962306a36Sopenharmony_ci 21062306a36Sopenharmony_ci ret = CMA3000_SET(data, CMA3000_CTRL, CMAMODE_POFF, "Mode setting"); 21162306a36Sopenharmony_ci msleep(CMA3000_SETDELAY); 21262306a36Sopenharmony_ci 21362306a36Sopenharmony_ci return ret; 21462306a36Sopenharmony_ci} 21562306a36Sopenharmony_ci 21662306a36Sopenharmony_cistatic int cma3000_open(struct input_dev *input_dev) 21762306a36Sopenharmony_ci{ 21862306a36Sopenharmony_ci struct cma3000_accl_data *data = input_get_drvdata(input_dev); 21962306a36Sopenharmony_ci 22062306a36Sopenharmony_ci mutex_lock(&data->mutex); 22162306a36Sopenharmony_ci 22262306a36Sopenharmony_ci if (!data->suspended) 22362306a36Sopenharmony_ci cma3000_poweron(data); 22462306a36Sopenharmony_ci 22562306a36Sopenharmony_ci data->opened = true; 22662306a36Sopenharmony_ci 22762306a36Sopenharmony_ci mutex_unlock(&data->mutex); 22862306a36Sopenharmony_ci 22962306a36Sopenharmony_ci return 0; 23062306a36Sopenharmony_ci} 23162306a36Sopenharmony_ci 23262306a36Sopenharmony_cistatic void cma3000_close(struct input_dev *input_dev) 23362306a36Sopenharmony_ci{ 23462306a36Sopenharmony_ci struct cma3000_accl_data *data = input_get_drvdata(input_dev); 23562306a36Sopenharmony_ci 23662306a36Sopenharmony_ci mutex_lock(&data->mutex); 23762306a36Sopenharmony_ci 23862306a36Sopenharmony_ci if (!data->suspended) 23962306a36Sopenharmony_ci cma3000_poweroff(data); 24062306a36Sopenharmony_ci 24162306a36Sopenharmony_ci data->opened = false; 24262306a36Sopenharmony_ci 24362306a36Sopenharmony_ci mutex_unlock(&data->mutex); 24462306a36Sopenharmony_ci} 24562306a36Sopenharmony_ci 24662306a36Sopenharmony_civoid cma3000_suspend(struct cma3000_accl_data *data) 24762306a36Sopenharmony_ci{ 24862306a36Sopenharmony_ci mutex_lock(&data->mutex); 24962306a36Sopenharmony_ci 25062306a36Sopenharmony_ci if (!data->suspended && data->opened) 25162306a36Sopenharmony_ci cma3000_poweroff(data); 25262306a36Sopenharmony_ci 25362306a36Sopenharmony_ci data->suspended = true; 25462306a36Sopenharmony_ci 25562306a36Sopenharmony_ci mutex_unlock(&data->mutex); 25662306a36Sopenharmony_ci} 25762306a36Sopenharmony_ciEXPORT_SYMBOL(cma3000_suspend); 25862306a36Sopenharmony_ci 25962306a36Sopenharmony_ci 26062306a36Sopenharmony_civoid cma3000_resume(struct cma3000_accl_data *data) 26162306a36Sopenharmony_ci{ 26262306a36Sopenharmony_ci mutex_lock(&data->mutex); 26362306a36Sopenharmony_ci 26462306a36Sopenharmony_ci if (data->suspended && data->opened) 26562306a36Sopenharmony_ci cma3000_poweron(data); 26662306a36Sopenharmony_ci 26762306a36Sopenharmony_ci data->suspended = false; 26862306a36Sopenharmony_ci 26962306a36Sopenharmony_ci mutex_unlock(&data->mutex); 27062306a36Sopenharmony_ci} 27162306a36Sopenharmony_ciEXPORT_SYMBOL(cma3000_resume); 27262306a36Sopenharmony_ci 27362306a36Sopenharmony_cistruct cma3000_accl_data *cma3000_init(struct device *dev, int irq, 27462306a36Sopenharmony_ci const struct cma3000_bus_ops *bops) 27562306a36Sopenharmony_ci{ 27662306a36Sopenharmony_ci const struct cma3000_platform_data *pdata = dev_get_platdata(dev); 27762306a36Sopenharmony_ci struct cma3000_accl_data *data; 27862306a36Sopenharmony_ci struct input_dev *input_dev; 27962306a36Sopenharmony_ci int rev; 28062306a36Sopenharmony_ci int error; 28162306a36Sopenharmony_ci 28262306a36Sopenharmony_ci if (!pdata) { 28362306a36Sopenharmony_ci dev_err(dev, "platform data not found\n"); 28462306a36Sopenharmony_ci error = -EINVAL; 28562306a36Sopenharmony_ci goto err_out; 28662306a36Sopenharmony_ci } 28762306a36Sopenharmony_ci 28862306a36Sopenharmony_ci 28962306a36Sopenharmony_ci /* if no IRQ return error */ 29062306a36Sopenharmony_ci if (irq == 0) { 29162306a36Sopenharmony_ci error = -EINVAL; 29262306a36Sopenharmony_ci goto err_out; 29362306a36Sopenharmony_ci } 29462306a36Sopenharmony_ci 29562306a36Sopenharmony_ci data = kzalloc(sizeof(struct cma3000_accl_data), GFP_KERNEL); 29662306a36Sopenharmony_ci input_dev = input_allocate_device(); 29762306a36Sopenharmony_ci if (!data || !input_dev) { 29862306a36Sopenharmony_ci error = -ENOMEM; 29962306a36Sopenharmony_ci goto err_free_mem; 30062306a36Sopenharmony_ci } 30162306a36Sopenharmony_ci 30262306a36Sopenharmony_ci data->dev = dev; 30362306a36Sopenharmony_ci data->input_dev = input_dev; 30462306a36Sopenharmony_ci data->bus_ops = bops; 30562306a36Sopenharmony_ci data->pdata = pdata; 30662306a36Sopenharmony_ci data->irq = irq; 30762306a36Sopenharmony_ci mutex_init(&data->mutex); 30862306a36Sopenharmony_ci 30962306a36Sopenharmony_ci data->mode = pdata->mode; 31062306a36Sopenharmony_ci if (data->mode > CMAMODE_POFF) { 31162306a36Sopenharmony_ci data->mode = CMAMODE_MOTDET; 31262306a36Sopenharmony_ci dev_warn(dev, 31362306a36Sopenharmony_ci "Invalid mode specified, assuming Motion Detect\n"); 31462306a36Sopenharmony_ci } 31562306a36Sopenharmony_ci 31662306a36Sopenharmony_ci data->g_range = pdata->g_range; 31762306a36Sopenharmony_ci if (data->g_range != CMARANGE_2G && data->g_range != CMARANGE_8G) { 31862306a36Sopenharmony_ci dev_info(dev, 31962306a36Sopenharmony_ci "Invalid G range specified, assuming 8G\n"); 32062306a36Sopenharmony_ci data->g_range = CMARANGE_8G; 32162306a36Sopenharmony_ci } 32262306a36Sopenharmony_ci 32362306a36Sopenharmony_ci input_dev->name = "cma3000-accelerometer"; 32462306a36Sopenharmony_ci input_dev->id.bustype = bops->bustype; 32562306a36Sopenharmony_ci input_dev->open = cma3000_open; 32662306a36Sopenharmony_ci input_dev->close = cma3000_close; 32762306a36Sopenharmony_ci 32862306a36Sopenharmony_ci input_set_abs_params(input_dev, ABS_X, 32962306a36Sopenharmony_ci -data->g_range, data->g_range, pdata->fuzz_x, 0); 33062306a36Sopenharmony_ci input_set_abs_params(input_dev, ABS_Y, 33162306a36Sopenharmony_ci -data->g_range, data->g_range, pdata->fuzz_y, 0); 33262306a36Sopenharmony_ci input_set_abs_params(input_dev, ABS_Z, 33362306a36Sopenharmony_ci -data->g_range, data->g_range, pdata->fuzz_z, 0); 33462306a36Sopenharmony_ci input_set_abs_params(input_dev, ABS_MISC, 0, 1, 0, 0); 33562306a36Sopenharmony_ci 33662306a36Sopenharmony_ci input_set_drvdata(input_dev, data); 33762306a36Sopenharmony_ci 33862306a36Sopenharmony_ci error = cma3000_reset(data); 33962306a36Sopenharmony_ci if (error) 34062306a36Sopenharmony_ci goto err_free_mem; 34162306a36Sopenharmony_ci 34262306a36Sopenharmony_ci rev = CMA3000_READ(data, CMA3000_REVID, "Revid"); 34362306a36Sopenharmony_ci if (rev < 0) { 34462306a36Sopenharmony_ci error = rev; 34562306a36Sopenharmony_ci goto err_free_mem; 34662306a36Sopenharmony_ci } 34762306a36Sopenharmony_ci 34862306a36Sopenharmony_ci pr_info("CMA3000 Accelerometer: Revision %x\n", rev); 34962306a36Sopenharmony_ci 35062306a36Sopenharmony_ci error = request_threaded_irq(irq, NULL, cma3000_thread_irq, 35162306a36Sopenharmony_ci pdata->irqflags | IRQF_ONESHOT, 35262306a36Sopenharmony_ci "cma3000_d0x", data); 35362306a36Sopenharmony_ci if (error) { 35462306a36Sopenharmony_ci dev_err(dev, "request_threaded_irq failed\n"); 35562306a36Sopenharmony_ci goto err_free_mem; 35662306a36Sopenharmony_ci } 35762306a36Sopenharmony_ci 35862306a36Sopenharmony_ci error = input_register_device(data->input_dev); 35962306a36Sopenharmony_ci if (error) { 36062306a36Sopenharmony_ci dev_err(dev, "Unable to register input device\n"); 36162306a36Sopenharmony_ci goto err_free_irq; 36262306a36Sopenharmony_ci } 36362306a36Sopenharmony_ci 36462306a36Sopenharmony_ci return data; 36562306a36Sopenharmony_ci 36662306a36Sopenharmony_cierr_free_irq: 36762306a36Sopenharmony_ci free_irq(irq, data); 36862306a36Sopenharmony_cierr_free_mem: 36962306a36Sopenharmony_ci input_free_device(input_dev); 37062306a36Sopenharmony_ci kfree(data); 37162306a36Sopenharmony_cierr_out: 37262306a36Sopenharmony_ci return ERR_PTR(error); 37362306a36Sopenharmony_ci} 37462306a36Sopenharmony_ciEXPORT_SYMBOL(cma3000_init); 37562306a36Sopenharmony_ci 37662306a36Sopenharmony_civoid cma3000_exit(struct cma3000_accl_data *data) 37762306a36Sopenharmony_ci{ 37862306a36Sopenharmony_ci free_irq(data->irq, data); 37962306a36Sopenharmony_ci input_unregister_device(data->input_dev); 38062306a36Sopenharmony_ci kfree(data); 38162306a36Sopenharmony_ci} 38262306a36Sopenharmony_ciEXPORT_SYMBOL(cma3000_exit); 38362306a36Sopenharmony_ci 38462306a36Sopenharmony_ciMODULE_DESCRIPTION("CMA3000-D0x Accelerometer Driver"); 38562306a36Sopenharmony_ciMODULE_LICENSE("GPL"); 38662306a36Sopenharmony_ciMODULE_AUTHOR("Hemanth V <hemanthv@ti.com>"); 387