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android_kernel_samsung_rube…/drivers/sensorhub/stm/ssp_dev.c
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/*
* Copyright (C) 2012, Samsung Electronics Co. Ltd. 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 as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*
*/
#include "ssp.h"
#ifdef CONFIG_OF
#include <linux/of_gpio.h>
#endif
#if SSP_SEC_DEBUG
#include <mach/sec_debug.h>
#endif
#ifdef CONFIG_HAS_EARLYSUSPEND
static void ssp_early_suspend(struct early_suspend *handler);
static void ssp_late_resume(struct early_suspend *handler);
#endif
#define NORMAL_SENSOR_STATE_K 0x3FEFF
#define GES_LDO_ON 1
#define GES_LDO_OFF 0
void ssp_enable(struct ssp_data *data, bool enable)
{
pr_info("[SSP] %s, enable = %d, old enable = %d\n",
__func__, enable, data->bSspShutdown);
if (enable && data->bSspShutdown) {
data->bSspShutdown = false;
enable_irq(data->iIrq);
enable_irq_wake(data->iIrq);
} else if (!enable && !data->bSspShutdown) {
data->bSspShutdown = true;
disable_irq(data->iIrq);
disable_irq_wake(data->iIrq);
} else
pr_err("[SSP] %s, enable error\n", __func__);
}
/************************************************************************/
/* interrupt happened due to transition/change of SSP MCU */
/************************************************************************/
static irqreturn_t sensordata_irq_thread_fn(int iIrq, void *dev_id)
{
struct ssp_data *data = dev_id;
struct timespec ts;
ts = ktime_to_timespec(alarm_get_elapsed_realtime());
data->timestamp = ts.tv_sec * 1000000000ULL + ts.tv_nsec;
if(gpio_get_value(data->mcu_int1)) {
pr_info("[SSP] MCU int HIGH");
return IRQ_HANDLED;
}
select_irq_msg(data);
data->uIrqCnt++;
return IRQ_HANDLED;
}
/*************************************************************************/
/* initialize sensor hub */
/*************************************************************************/
static void initialize_variable(struct ssp_data *data)
{
int iSensorIndex;
for (iSensorIndex = 0; iSensorIndex < SENSOR_MAX; iSensorIndex++) {
data->adDelayBuf[iSensorIndex] = DEFUALT_POLLING_DELAY;
data->batchLatencyBuf[iSensorIndex] = 0;
data->batchOptBuf[iSensorIndex] = 0;
data->aiCheckStatus[iSensorIndex] = INITIALIZATION_STATE;
data->lastTimestamp[iSensorIndex] = 0;
data->reportedData[iSensorIndex] = false;
}
atomic_set(&data->aSensorEnable, 0);
data->iLibraryLength = 0;
data->uSensorState = NORMAL_SENSOR_STATE_K;
data->uFactoryProxAvg[0] = 0;
data->uMagCntlRegData = 1;
data->uResetCnt = 0;
data->uTimeOutCnt = 0;
data->uComFailCnt = 0;
data->uIrqCnt = 0;
data->bSspShutdown = true;
data->bProximityRawEnabled = false;
data->bGeomagneticRawEnabled = false;
data->bBarcodeEnabled = false;
data->bAccelAlert = false;
data->bTimeSyncing = true;
data->accelcal.x = 0;
data->accelcal.y = 0;
data->accelcal.z = 0;
data->gyrocal.x = 0;
data->gyrocal.y = 0;
data->gyrocal.z = 0;
data->magoffset.x = 0;
data->magoffset.y = 0;
data->magoffset.z = 0;
data->iPressureCal = 0;
data->uProxCanc = 0;
data->uProxHiThresh = 0;
data->uProxLoThresh = 0;
data->uGyroDps = GYROSCOPE_DPS500;
data->uIr_Current = 0;
data->mcu_device = NULL;
data->acc_device = NULL;
data->gyro_device = NULL;
data->mag_device = NULL;
data->prs_device = NULL;
data->prox_device = NULL;
data->light_device = NULL;
data->ges_device = NULL;
data->voice_device = NULL;
#if SSP_SEC_DEBUG
data->bMcuDumpMode = sec_debug_is_enabled();
#endif
INIT_LIST_HEAD(&data->pending_list);
data->step_count_total = 0;
data->sealevelpressure = 0;
initialize_function_pointer(data);
}
int initialize_mcu(struct ssp_data *data)
{
int iRet = 0;
clean_pending_list(data);
iRet = get_chipid(data);
pr_info("[SSP] MCU device ID = %d, reading ID = %d\n", DEVICE_ID, iRet);
if (iRet != DEVICE_ID) {
if (iRet < 0) {
pr_err("[SSP]: %s - MCU is not working : 0x%x\n",
__func__, iRet);
} else {
pr_err("[SSP]: %s - MCU identification failed\n",
__func__);
iRet = -ENODEV;
}
goto out;
}
iRet = set_sensor_position(data);
if (iRet < 0) {
pr_err("[SSP]: %s - set_sensor_position failed\n", __func__);
goto out;
}
iRet = get_fuserom_data(data);
if (iRet < 0)
pr_err("[SSP]: %s - get_fuserom_data failed\n", __func__);
data->uSensorState = get_sensor_scanning_info(data);
if (data->uSensorState == 0) {
pr_err("[SSP]: %s - get_sensor_scanning_info failed\n",
__func__);
iRet = ERROR;
goto out;
}
data->uCurFirmRev = get_firmware_rev(data);
pr_info("[SSP] MCU Firm Rev : New = %8u\n",
data->uCurFirmRev);
iRet = ssp_send_cmd(data, MSG2SSP_AP_MCU_DUMP_CHECK, 0);
out:
return iRet;
}
static int initialize_irq(struct ssp_data *data)
{
int iRet, iIrq;
iIrq = gpio_to_irq(data->mcu_int1);
pr_info("[SSP]: requesting IRQ %d\n", iIrq);
iRet = request_threaded_irq(iIrq, NULL, sensordata_irq_thread_fn,
IRQF_TRIGGER_FALLING|IRQF_ONESHOT, "SSP_Int", data);
if (iRet < 0) {
pr_err("[SSP]: %s - request_irq(%d) failed for gpio %d (%d)\n",
__func__, iIrq, iIrq, iRet);
goto err_request_irq;
}
/* start with interrupts disabled */
data->iIrq = iIrq;
disable_irq(data->iIrq);
return 0;
err_request_irq:
gpio_free(data->mcu_int1);
return iRet;
}
static void work_function_firmware_update(struct work_struct *work)
{
struct ssp_data *data = container_of((struct delayed_work *)work,
struct ssp_data, work_firmware);
int iRet = 0;
pr_info("[SSP] : %s\n", __func__);
iRet = forced_to_download_binary(data, KERNEL_BINARY);
if (iRet < 0) {
ssp_dbg("[SSP]: %s - forced_to_download_binary failed!\n",
__func__);
data->uSensorState = 0;
return;
}
queue_refresh_task(data, SSP_SW_RESET_TIME);
}
static int ssp_parse_dt(struct device *dev,
struct ssp_data *data)
{
struct device_node *np = dev->of_node;
enum of_gpio_flags flags;
int errorno = 0;
data->mcu_int1 = of_get_named_gpio_flags(np, "ssp,mcu_int1-gpio",
0, &flags);
if (data->mcu_int1 < 0) {
errorno = data->mcu_int1;
goto dt_exit;
}
data->mcu_int2 = of_get_named_gpio_flags(np, "ssp,mcu_int2-gpio",
0, &flags);
if (data->mcu_int2 < 0) {
errorno = data->mcu_int2;
goto dt_exit;
}
data->ap_int = of_get_named_gpio_flags(np, "ssp,ap_int-gpio",
0, &flags);
if (data->ap_int < 0) {
errorno = data->ap_int;
goto dt_exit;
}
#if defined(CONFIG_SEC_PATEK_PROJECT)
if (of_property_read_string(np, "ssp,ges_vdd_1p8",
&data->ges_vdd) < 0)
pr_err("%s - get ges_vdd error\n", __func__);
if (of_property_read_string(np, "ssp,ges_led_3p3",
&data->ges_led) < 0)
pr_err("%s - get ges_led error\n", __func__);
pr_err("%s - get ges_vcc pass\n", __func__);
#endif
#if defined(CONFIG_MACH_KLTE_JPN) || defined(CONFIG_MACH_KACTIVELTE_DCM)
#if defined(CONFIG_MACH_KLTE_MAX77828_JPN)
data->rst = of_get_named_gpio_flags(np, "ssp,rst-gpio",
0, &flags);
#else
of_property_read_u32(np, "ssp,rst-gpio", &data->rst);
#endif
#else
data->rst = of_get_named_gpio_flags(np, "ssp,rst-gpio",
0, &flags);
#endif
if (data->rst < 0) {
errorno = data->rst ;
goto dt_exit;
}
if (of_property_read_u32(np, "ssp,acc-position", &data->accel_position))
data->accel_position = 0;
if (of_property_read_u32(np, "ssp,mag-position", &data->mag_position))
data->mag_position = 0;
if (of_property_read_u32(np, "ssp,ap-rev", &data->ap_rev))
data->ap_rev = 0;
errorno = gpio_request(data->mcu_int1, "mpu_ap_int1");
if (errorno) {
pr_err("[SSP] failed to request MCU_INT2 for SSP\n");
goto dt_exit;
}
errorno = gpio_direction_input(data->mcu_int1);
if (errorno) {
pr_err("[SSP] failed to set mcu_int1 as input\n");
goto dt_exit;
}
errorno = gpio_request(data->mcu_int2, "MCU_INT2");
if (errorno) {
pr_err("[SSP] failed to request MCU_INT2 for SSP\n");
goto dt_exit;
}
gpio_direction_input(data->mcu_int2);
errorno = gpio_request(data->ap_int, "AP_MCU_INT");
if (errorno) {
pr_err("[SSP] failed to request AP_INT for SSP\n");
goto dt_exit;
}
gpio_direction_output(data->ap_int, 1);
errorno = gpio_request(data->rst, "MCU_RST");
if (errorno) {
pr_err("[SSP] failed to request MCU_RST for SSP\n");
goto dt_exit;
}
gpio_direction_output(data->rst, 1);
data->reg_hub = devm_regulator_get(dev, "hub_vreg");
if (IS_ERR(data->reg_hub)) {
pr_err("[SSP] could not get hub_vreg, %ld\n",
PTR_ERR(data->reg_hub));
} else {
regulator_enable(data->reg_hub);
}
data->reg_sns= devm_regulator_get(dev, "psns_vreg");
if (IS_ERR(data->reg_hub)) {
pr_err("[SSP] could not get psns_vreg, %ld\n",
PTR_ERR(data->reg_sns));
} else {
regulator_enable(data->reg_sns);
}
dt_exit:
return errorno;
}
#if defined(CONFIG_SEC_PATEK_PROJECT)
static int ssp_gesture_regulator_onoff(struct ssp_data *data, int onoff)
{
int rc = 0;
struct regulator *regulator_led_3p3;
struct regulator *regulator_vdd_1p8;
pr_info("[SSP] %s - start = %d\n", __func__, onoff);
regulator_vdd_1p8 = regulator_get(NULL, data->ges_vdd);
if (IS_ERR(regulator_vdd_1p8)) {
pr_err("[SSP] %s - vdd_1p8 regulator_get fail\n", __func__);
return -ENODEV;
}
regulator_led_3p3 = regulator_get(NULL, data->ges_led);
if (IS_ERR(regulator_led_3p3)) {
pr_err("[SSP] %s - vdd_3p3 regulator_get fail\n", __func__);
regulator_put(regulator_vdd_1p8);
return -ENODEV;
}
pr_info("[SSP] %s - onoff = %d\n", __func__, onoff);
if (onoff == GES_LDO_ON) {
regulator_set_voltage(regulator_vdd_1p8, 1800000, 1800000);
rc = regulator_enable(regulator_vdd_1p8);
if (rc) {
pr_err("[SSP] %s - enable vdd_1p8 failed, rc=%d\n",
__func__, rc);
goto done;
}
regulator_set_voltage(regulator_led_3p3, 3300000, 3300000);
rc = regulator_enable(regulator_led_3p3);
if (rc) {
pr_err("[SSP] %s - enable led_3p3 failed, rc=%d\n",
__func__, rc);
goto done;
}
}else {
rc = regulator_disable(regulator_vdd_1p8);
if (rc) {
pr_err("[SSP] %s - disable vdd_1p8 failed, rc=%d\n",
__func__, rc);
goto done;
}
rc = regulator_disable(regulator_led_3p3);
if (rc) {
pr_err("[SSP] %s - disable led_3p3 failed, rc=%d\n",
__func__, rc);
goto done;
}
}
data->regulator_is_enable = (u8)onoff;
done:
regulator_put(regulator_led_3p3);
regulator_put(regulator_vdd_1p8);
return rc;
}
#endif
static int ssp_probe(struct spi_device *spi_dev)
{
int iRet = 0;
struct ssp_data *data;
struct ssp_platform_data *pdata;
#if defined(CONFIG_SEC_PATEK_PROJECT)
int err =-1;
#endif
pr_info("[SSP] %s\n", __func__);
if (poweroff_charging == 1 || boot_mode_recovery == 1) {
pr_err("[SSP] probe exit : lpm %d, recovery %d\n",
poweroff_charging, boot_mode_recovery);
return -ENODEV;
}
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (data == NULL) {
pr_err("[SSP]: %s - failed to allocate memory for data\n",
__func__);
iRet = -ENOMEM;
goto exit;
}
if (spi_dev->dev.of_node) {
iRet = ssp_parse_dt(&spi_dev->dev, data);
if (iRet) {
pr_err("[SSP]: %s - Failed to parse DT\n", __func__);
goto err_setup;
}
data->ssp_changes = SSP_MCU_L5; /* K330, MPU L5*/
} else {
pdata = spi_dev->dev.platform_data;
if (pdata == NULL) {
pr_err("[SSP]: %s - platform_data is null\n", __func__);
iRet = -ENOMEM;
goto err_setup;
}
data->wakeup_mcu = pdata->wakeup_mcu;
data->check_mcu_ready = pdata->check_mcu_ready;
data->check_mcu_busy = pdata->check_mcu_busy;
data->set_mcu_reset = pdata->set_mcu_reset;
data->read_chg = pdata->read_chg;
/* AP system_rev */
if (pdata->check_ap_rev)
data->ap_rev = pdata->check_ap_rev();
else
data->ap_rev = 0;
/* For changed devices */
if (pdata->check_changes)
data->ssp_changes = pdata->check_changes();
else
data->ssp_changes = SSP_MCU_L5; /* K330, MPU L5*/
/* Get sensor positions */
if (pdata->get_positions)
pdata->get_positions(&data->accel_position,
&data->mag_position);
else if (spi_dev->dev.of_node == NULL) {
data->accel_position = 0;
data->mag_position = 0;
}
}
#if defined(CONFIG_SEC_PATEK_PROJECT)
err = ssp_gesture_regulator_onoff(data, GES_LDO_ON);
if (err < 0) {
pr_err("[SSP] %s max88922_regulator_on fail err = %d\n",
__func__, err);
goto err_setup;
}
usleep_range(1000, 1100);
#endif
spi_dev->mode = SPI_MODE_1;
if (spi_setup(spi_dev)) {
pr_err("failed to setup spi for ssp_spi\n");
goto err_setup;
}
data->bProbeIsDone = false;
data->fw_dl_state = FW_DL_STATE_NONE;
data->spi = spi_dev;
spi_set_drvdata(spi_dev, data);
#ifdef CONFIG_SENSORS_SSP_SHTC1
mutex_init(&data->cp_temp_adc_lock);
mutex_init(&data->bulk_temp_read_lock);
#endif
#ifdef CONFIG_SENSORS_SSP_STM
mutex_init(&data->comm_mutex);
mutex_init(&data->pending_mutex);
#endif
if (((data->wakeup_mcu == NULL)
|| (data->check_mcu_ready == NULL)
|| (data->check_mcu_busy == NULL)
|| (data->set_mcu_reset == NULL)
|| (data->read_chg == NULL))
&& (spi_dev->dev.of_node == NULL)) {
pr_err("[SSP]: %s - function callback is null\n", __func__);
iRet = -EIO;
goto err_reset_null;
}
pr_info("\n#####################################################\n");
INIT_DELAYED_WORK(&data->work_firmware, work_function_firmware_update);
wake_lock_init(&data->ssp_wake_lock,
WAKE_LOCK_SUSPEND, "ssp_wake_lock");
iRet = initialize_input_dev(data);
if (iRet < 0) {
pr_err("[SSP]: %s - could not create input device\n", __func__);
goto err_input_register_device;
}
iRet = initialize_debug_timer(data);
if (iRet < 0) {
pr_err("[SSP]: %s - could not create workqueue\n", __func__);
goto err_create_workqueue;
}
iRet = initialize_irq(data);
if (iRet < 0) {
pr_err("[SSP]: %s - could not create irq\n", __func__);
goto err_setup_irq;
}
iRet = initialize_sysfs(data);
if (iRet < 0) {
pr_err("[SSP]: %s - could not create sysfs\n", __func__);
goto err_sysfs_create;
}
iRet = initialize_event_symlink(data);
if (iRet < 0) {
pr_err("[SSP]: %s - could not create symlink\n", __func__);
goto err_symlink_create;
}
initialize_variable(data);
#ifdef CONFIG_SENSORS_SSP_SENSORHUB
/* init sensorhub device */
iRet = ssp_sensorhub_initialize(data);
if (iRet < 0) {
pr_err("%s: ssp_sensorhub_initialize err(%d)", __func__, iRet);
ssp_sensorhub_remove(data);
}
#endif
ssp_enable(data, true);
/* check boot loader binary */
data->fw_dl_state = check_fwbl(data);
if (data->fw_dl_state == FW_DL_STATE_NONE) {
iRet = initialize_mcu(data);
if (iRet == ERROR) {
toggle_mcu_reset(data);
} else if (iRet < ERROR) {
pr_err("[SSP]: %s - initialize_mcu failed\n", __func__);
goto err_read_reg;
}
}
#ifdef CONFIG_HAS_EARLYSUSPEND
data->early_suspend.suspend = ssp_early_suspend;
data->early_suspend.resume = ssp_late_resume;
register_early_suspend(&data->early_suspend);
#endif
pr_info("[SSP]: %s - probe success!\n", __func__);
enable_debug_timer(data);
iRet = 0;
if (data->fw_dl_state == FW_DL_STATE_NEED_TO_SCHEDULE) {
pr_info("[SSP]: Firmware update is scheduled\n");
schedule_delayed_work(&data->work_firmware,
msecs_to_jiffies(1000));
data->fw_dl_state = FW_DL_STATE_SCHEDULED;
} else if (data->fw_dl_state == FW_DL_STATE_FAIL)
data->bSspShutdown = true;
data->bProbeIsDone = true;
goto exit;
err_read_reg:
err_symlink_create:
remove_sysfs(data);
err_sysfs_create:
free_irq(data->iIrq, data);
gpio_free(data->mcu_int1);
err_setup_irq:
destroy_workqueue(data->debug_wq);
err_create_workqueue:
remove_input_dev(data);
err_input_register_device:
wake_lock_destroy(&data->ssp_wake_lock);
err_reset_null:
#ifdef CONFIG_SENSORS_SSP_SHTC1
mutex_destroy(&data->cp_temp_adc_lock);
mutex_destroy(&data->bulk_temp_read_lock);
#endif
#ifdef CONFIG_SENSORS_SSP_STM
mutex_destroy(&data->comm_mutex);
mutex_destroy(&data->pending_mutex);
#endif
err_setup:
kfree(data);
pr_err("[SSP]: %s - probe failed!\n", __func__);
exit:
pr_info("#####################################################\n\n");
return iRet;
}
static void ssp_shutdown(struct spi_device *spi_dev)
{
struct ssp_data *data = spi_get_drvdata(spi_dev);
func_dbg();
if (data->bProbeIsDone == false)
goto exit;
if (data->fw_dl_state >= FW_DL_STATE_SCHEDULED &&
data->fw_dl_state < FW_DL_STATE_DONE) {
pr_err("%s, cancel_delayed_work_sync state = %d\n",
__func__, data->fw_dl_state);
cancel_delayed_work_sync(&data->work_firmware);
}
disable_debug_timer(data);
if (SUCCESS != ssp_send_cmd(data, MSG2SSP_AP_STATUS_SHUTDOWN, 0))
pr_err("[SSP]: %s MSG2SSP_AP_STATUS_SHUTDOWN failed\n",
__func__);
ssp_enable(data, false);
clean_pending_list(data);
#ifdef CONFIG_HAS_EARLYSUSPEND
unregister_early_suspend(&data->early_suspend);
#endif
free_irq(data->iIrq, data);
gpio_free(data->mcu_int1);
remove_event_symlink(data);
remove_sysfs(data);
remove_input_dev(data);
#ifdef CONFIG_SENSORS_SSP_SENSORHUB
ssp_sensorhub_remove(data);
#endif
cancel_delayed_work_sync(&data->work_refresh);
destroy_workqueue(data->debug_wq);
wake_lock_destroy(&data->ssp_wake_lock);
#ifdef CONFIG_SENSORS_SSP_SHTC1
mutex_destroy(&data->cp_temp_adc_lock);
mutex_destroy(&data->bulk_temp_read_lock);
#endif
#ifdef CONFIG_SENSORS_SSP_STM
mutex_destroy(&data->comm_mutex);
mutex_destroy(&data->pending_mutex);
#endif
toggle_mcu_reset(data);
/* gpio_set_value_cansleep(data->rst, 0); */
pr_info("[SSP]: %s done\n", __func__);
exit:
kfree(data);
}
#ifdef CONFIG_HAS_EARLYSUSPEND
static void ssp_early_suspend(struct early_suspend *handler)
{
struct ssp_data *data;
data = container_of(handler, struct ssp_data, early_suspend);
func_dbg();
disable_debug_timer(data);
#ifdef CONFIG_SENSORS_SSP_SENSORHUB
/* give notice to user that AP goes to sleep */
ssp_sensorhub_report_notice(data, MSG2SSP_AP_STATUS_SLEEP);
ssp_sleep_mode(data);
data->uLastAPState = MSG2SSP_AP_STATUS_SLEEP;
#else
if (atomic_read(&data->aSensorEnable) > 0)
ssp_sleep_mode(data);
#endif
}
static void ssp_late_resume(struct early_suspend *handler)
{
struct ssp_data *data;
data = container_of(handler, struct ssp_data, early_suspend);
func_dbg();
enable_debug_timer(data);
#ifdef CONFIG_SENSORS_SSP_SENSORHUB
/* give notice to user that AP goes to sleep */
ssp_sensorhub_report_notice(data, MSG2SSP_AP_STATUS_WAKEUP);
ssp_resume_mode(data);
data->uLastAPState = MSG2SSP_AP_STATUS_WAKEUP;
#else
if (atomic_read(&data->aSensorEnable) > 0)
ssp_resume_mode(data);
#endif
}
#else /* CONFIG_HAS_EARLYSUSPEND */
static int ssp_suspend(struct device *dev)
{
struct spi_device *spi_dev = to_spi_device(dev);
struct ssp_data *data = spi_get_drvdata(spi_dev);
func_dbg();
data->uLastResumeState = MSG2SSP_AP_STATUS_SUSPEND;
disable_debug_timer(data);
if (SUCCESS != ssp_send_cmd(data, MSG2SSP_AP_STATUS_SUSPEND, 0))
pr_err("[SSP]: %s MSG2SSP_AP_STATUS_SUSPEND failed\n",
__func__);
data->bTimeSyncing = false;
disable_irq(data->iIrq);
return 0;
}
static int ssp_resume(struct device *dev)
{
struct spi_device *spi_dev = to_spi_device(dev);
struct ssp_data *data = spi_get_drvdata(spi_dev);
enable_irq(data->iIrq);
func_dbg();
enable_debug_timer(data);
if (SUCCESS != ssp_send_cmd(data, MSG2SSP_AP_STATUS_RESUME, 0))
pr_err("[SSP]: %s MSG2SSP_AP_STATUS_RESUME failed\n",
__func__);
data->uLastResumeState = MSG2SSP_AP_STATUS_RESUME;
return 0;
}
static const struct dev_pm_ops ssp_pm_ops = {
.suspend = ssp_suspend,
.resume = ssp_resume
};
#endif /* CONFIG_HAS_EARLYSUSPEND */
static const struct spi_device_id ssp_id[] = {
{"ssp", 0},
{}
};
MODULE_DEVICE_TABLE(spi, ssp_id);
#ifdef CONFIG_OF
static struct of_device_id ssp_match_table[] = {
{ .compatible = "ssp,STM32F",},
{},
};
#else
#define mpu6500_match_table NULL
#endif
static struct spi_driver ssp_driver = {
.probe = ssp_probe,
.shutdown = ssp_shutdown,
.id_table = ssp_id,
.driver = {
#ifndef CONFIG_HAS_EARLYSUSPEND
.pm = &ssp_pm_ops,
#endif
.owner = THIS_MODULE,
.name = "ssp",
.of_match_table = ssp_match_table
},
};
module_spi_driver(ssp_driver);
MODULE_DESCRIPTION("ssp driver");
MODULE_AUTHOR("Samsung Electronics");
MODULE_LICENSE("GPL");
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