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);
}
ssp_enable(data, false);
clean_pending_list(data);
#ifdef CONFIG_HAS_EARLYSUSPEND
unregister_early_suspend(&data->early_suspend);
#endif
disable_debug_timer(data);
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
del_timer_sync(&data->debug_timer);
cancel_work_sync(&data->work_debug);
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
mutex_destroy(&data->comm_mutex);
mutex_destroy(&data->pending_mutex);
#if defined(CONFIG_MACH_VIKALCU)
proximity_ldo_enable(0);
#endif
toggle_mcu_reset(data);
/* gpio_set_value_cansleep(data->rst, 0); */
pr_info("[SSP]: %s done\n", __func__);
exit:
kfree(data);
}
static int ssp_probe(struct spi_device *spi_dev)
{
int iRet = 0;
struct ssp_data *data;
struct ssp_platform_data *pdata;
if (poweroff_charging == 1 || recovery_mode == 1) {
pr_err("[SSP] probe exit : lpm %d recovery %d \n",
poweroff_charging, recovery_mode);
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 defined (CONFIG_SEC_MONTBLANC_PROJECT)
proximity_ldo_enable(1);
#endif
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;
}
}
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
#if defined(CONFIG_SENSORS_SSP_STM) || defined(CONFIG_SENSORS_SSP_STM_MONTBLANC)
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);
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) {
data->uResetCnt++;
toggle_mcu_reset(data);
msleep(SSP_SW_RESET_TIME);
initialize_mcu(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
#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
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
#if defined(CONFIG_SENSORS_SSP_STM) || defined(CONFIG_SENSORS_SSP_STM_MONTBLANC)
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;
}