/* disp_pm_add_refcount - it is called in the early start of the
* update_reg_handler */
int disp_pm_add_refcount(struct display_driver *dispdrv)
{
unsigned long flags;
if (dispdrv->platform_status == DISP_STATUS_PM0) return 0;
if (!dispdrv->pm_status.clock_gating_on) return 0;
if (dispdrv->decon_driver.sfb->power_state == POWER_DOWN)
return 0;
init_gating_idle_count(dispdrv);
flush_kthread_worker(&dispdrv->pm_status.control_clock_gating);
flush_kthread_worker(&dispdrv->pm_status.control_power_gating);
if (dispdrv->decon_driver.sfb->power_state == POWER_HIBER_DOWN)
display_hibernation_power_on(dispdrv);
display_block_clock_on(dispdrv);
spin_lock_irqsave(&dispdrv->pm_status.slock, flags);
if (dispdrv->pm_status.trigger_masked) {
disable_mask(dispdrv);
}
spin_unlock_irqrestore(&dispdrv->pm_status.slock, flags);
return 0;
}
/* disp_pm_sched_power_on - it is called in the early start of the
* fb_ioctl to exit HDM */
int disp_pm_sched_power_on(struct display_driver *dispdrv, unsigned int cmd)
{
struct s3c_fb *sfb = dispdrv->decon_driver.sfb;
init_gating_idle_count(dispdrv);
if (dispdrv->platform_status < DISP_STATUS_PM1) {
if (cmd == S3CFB_WIN_CONFIG)
disp_pm_init_status(dispdrv);
}
flush_kthread_worker(&dispdrv->pm_status.control_power_gating);
if (sfb->power_state == POWER_HIBER_DOWN) {
switch (cmd) {
case S3CFB_WIN_PSR_EXIT:
case S3CFB_WIN_CONFIG:
queue_kthread_work(&dispdrv->pm_status.control_power_gating,
&dispdrv->pm_status.control_power_gating_work);
break;
default:
return -EBUSY;
}
}
return 0;
}
int disp_pm_runtime_get_sync(struct display_driver *dispdrv)
{
if (!dispdrv->pm_status.clock_gating_on) {
pm_runtime_get_sync(dispdrv->display_driver);
return 0;
}
init_gating_idle_count(dispdrv);
/* guarantee clock and power gating */
flush_kthread_worker(&dispdrv->pm_status.control_clock_gating);
flush_kthread_worker(&dispdrv->pm_status.control_power_gating);
pm_runtime_get_sync(dispdrv->display_driver);
display_block_clock_on(dispdrv);
return 0;
}
int disp_pm_runtime_put_sync(struct display_driver *dispdrv)
{
if (!dispdrv->pm_status.clock_gating_on) {
pm_runtime_put_sync(dispdrv->display_driver);
return 0;
}
flush_kthread_worker(&dispdrv->pm_status.control_clock_gating);
pm_runtime_put_sync(dispdrv->display_driver);
return 0;
}
static int __devexit bq2419x_remove(struct i2c_client *client)
{
struct bq2419x_chip *bq2419x = i2c_get_clientdata(client);
free_irq(bq2419x->irq, bq2419x);
bq2419x->stop_thread = true;
flush_kthread_worker(&bq2419x->bq_kworker);
kthread_stop(bq2419x->bq_kworker_task);
regulator_unregister(bq2419x->vbus_rdev);
regulator_unregister(bq2419x->chg_rdev);
mutex_destroy(&bq2419x->mutex);
return 0;
}
/**
* rvt_cq_exit - tear down cq reources
* @rdi: rvt dev structure
*/
void rvt_cq_exit(struct rvt_dev_info *rdi)
{
struct kthread_worker *worker;
worker = rdi->worker;
if (!worker)
return;
/* blocks future queuing from send_complete() */
rdi->worker = NULL;
smp_wmb(); /* See rdi_cq_enter */
flush_kthread_worker(worker);
kthread_stop(worker->task);
kfree(worker);
}
/* disp_pm_sched_power_on - it is called in the early start of the
* fb_ioctl to exit HDM */
int disp_pm_sched_power_on(struct display_driver *dispdrv, unsigned int cmd)
{
struct s3c_fb *sfb = dispdrv->decon_driver.sfb;
init_gating_idle_count(dispdrv);
/* First WIN_CONFIG should be on clock and power-gating */
if (dispdrv->platform_status < DISP_STATUS_PM1) {
if (cmd == S3CFB_WIN_CONFIG)
disp_pm_set_plat_status(dispdrv, true);
}
flush_kthread_worker(&dispdrv->pm_status.control_power_gating);
if (sfb->power_state == POWER_HIBER_DOWN) {
switch (cmd) {
case S3CFB_PLATFORM_RESET:
disp_pm_gate_lock(dispdrv, true);
queue_kthread_work(&dispdrv->pm_status.control_power_gating,
&dispdrv->pm_status.control_power_gating_work);
/* Prevent next clock and power-gating */
disp_pm_set_plat_status(dispdrv, false);
break;
case S3CFB_WIN_PSR_EXIT:
case S3CFB_WIN_CONFIG:
case S3CFB_SET_VSYNC_INT:
request_dynamic_hotplug(false);
disp_pm_gate_lock(dispdrv, true);
queue_kthread_work(&dispdrv->pm_status.control_power_gating,
&dispdrv->pm_status.control_power_gating_work);
break;
default:
return -EBUSY;
}
} else {
switch (cmd) {
case S3CFB_PLATFORM_RESET:
/* Prevent next clock and power-gating */
disp_pm_set_plat_status(dispdrv, false);
break;
}
}
return 0;
}
static int __devexit bq2419x_remove(struct i2c_client *client)
{
struct bq2419x_chip *bq2419x = i2c_get_clientdata(client);
free_irq(bq2419x->irq, bq2419x);
bq2419x->stop_thread = true;
flush_kthread_worker(&bq2419x->bq_kworker);
kthread_stop(bq2419x->bq_kworker_task);
regulator_unregister(bq2419x->vbus_rdev);
if (bq2419x->use_usb)
power_supply_unregister(&bq2419x->usb);
if (bq2419x->use_mains)
power_supply_unregister(&bq2419x->ac);
regulator_unregister(bq2419x->chg_rdev);
mutex_destroy(&bq2419x->mutex);
mutex_destroy(&bq2419x->otg_mutex);
cancel_delayed_work_sync(&bq2419x->otg_reset_work);
return 0;
}
/**
* adf_interface_set_mode - set interface's display mode
*
* @intf: the interface
* @mode: the new mode
*
* Returns 0 on success or -errno on failure.
*/
int adf_interface_set_mode(struct adf_interface *intf,
struct drm_mode_modeinfo *mode)
{
struct adf_device *dev = adf_interface_parent(intf);
int ret = 0;
if (!intf->ops || !intf->ops->modeset)
return -EOPNOTSUPP;
mutex_lock(&dev->client_lock);
flush_kthread_worker(&dev->post_worker);
ret = intf->ops->modeset(intf, mode);
if (ret < 0)
goto done;
memcpy(&intf->current_mode, mode, sizeof(*mode));
done:
mutex_unlock(&dev->client_lock);
return ret;
}
/* disp_pm_add_refcount - it is called in the early start of the
* update_reg_handler */
int disp_pm_add_refcount(struct display_driver *dispdrv)
{
if (dispdrv->platform_status == DISP_STATUS_PM0) return 0;
if (!dispdrv->pm_status.clock_gating_on) return 0;
if (dispdrv->decon_driver.sfb->power_state == POWER_DOWN)
return 0;
init_gating_idle_count(dispdrv);
flush_kthread_worker(&dispdrv->pm_status.control_power_gating);
if (dispdrv->decon_driver.sfb->power_state == POWER_HIBER_DOWN) {
request_dynamic_hotplug(false);
display_hibernation_power_on(dispdrv);
}
display_block_clock_on(dispdrv);
return 0;
}
/**
* adf_interface_blank - set interface's DPMS state
*
* @intf: the interface
* @state: one of %DRM_MODE_DPMS_*
*
* Returns 0 on success or -errno on failure.
*/
int adf_interface_blank(struct adf_interface *intf, u8 state)
{
struct adf_device *dev = adf_interface_parent(intf);
u8 prev_state;
bool disable_vsync;
bool enable_vsync;
int ret = 0;
struct adf_event_refcount *vsync_refcount;
if (!intf->ops || !intf->ops->blank)
return -EOPNOTSUPP;
if (state > DRM_MODE_DPMS_OFF)
return -EINVAL;
mutex_lock(&dev->client_lock);
if (state != DRM_MODE_DPMS_ON)
flush_kthread_worker(&dev->post_worker);
mutex_lock(&intf->base.event_lock);
vsync_refcount = adf_obj_find_event_refcount(&intf->base,
ADF_EVENT_VSYNC);
if (!vsync_refcount) {
ret = -ENOMEM;
goto done;
}
prev_state = intf->dpms_state;
if (prev_state == state) {
ret = -EBUSY;
goto done;
}
disable_vsync = vsync_active(prev_state) &&
!vsync_active(state) &&
vsync_refcount->refcount;
enable_vsync = !vsync_active(prev_state) &&
vsync_active(state) &&
vsync_refcount->refcount;
if (disable_vsync)
intf->base.ops->set_event(&intf->base, ADF_EVENT_VSYNC,
false);
ret = intf->ops->blank(intf, state);
if (ret < 0) {
if (disable_vsync)
intf->base.ops->set_event(&intf->base, ADF_EVENT_VSYNC,
true);
goto done;
}
if (enable_vsync)
intf->base.ops->set_event(&intf->base, ADF_EVENT_VSYNC,
true);
intf->dpms_state = state;
done:
mutex_unlock(&intf->base.event_lock);
mutex_unlock(&dev->client_lock);
return ret;
}
static int __devinit bq2419x_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct bq2419x_chip *bq2419x;
struct bq2419x_platform_data *pdata;
int ret = 0;
pdata = client->dev.platform_data;
if (!pdata) {
dev_err(&client->dev, "No Platform data");
return -EINVAL;
}
bq2419x = devm_kzalloc(&client->dev, sizeof(*bq2419x), GFP_KERNEL);
if (!bq2419x) {
dev_err(&client->dev, "Memory allocation failed\n");
return -ENOMEM;
}
bq2419x->regmap = devm_regmap_init_i2c(client, &bq2419x_regmap_config);
if (IS_ERR(bq2419x->regmap)) {
ret = PTR_ERR(bq2419x->regmap);
dev_err(&client->dev, "regmap init failed with err %d\n", ret);
return ret;
}
bq2419x->dev = &client->dev;
if (pdata->bcharger_pdata) {
bq2419x->update_status = pdata->bcharger_pdata->update_status;
bq2419x->rtc_alarm_time = pdata->bcharger_pdata->rtc_alarm_time;
bq2419x->wdt_time_sec = pdata->bcharger_pdata->wdt_timeout;
bq2419x->chg_restart_time =
pdata->bcharger_pdata->chg_restart_time;
bq2419x->chg_enable = true;
}
bq2419x->wdt_refresh_timeout = 25;
i2c_set_clientdata(client, bq2419x);
bq2419x->irq = client->irq;
if (bq2419x->rtc_alarm_time)
bq2419x->rtc = alarmtimer_get_rtcdev();
mutex_init(&bq2419x->mutex);
bq2419x->suspended = 0;
bq2419x->chg_restart_timeout = 0;
ret = bq2419x_show_chip_version(bq2419x);
if (ret < 0) {
dev_err(&client->dev, "version read failed %d\n", ret);
return ret;
}
ret = bq2419x_charger_init(bq2419x);
if (ret < 0) {
dev_err(bq2419x->dev, "Charger init failed: %d\n", ret);
return ret;
}
ret = bq2419x_init_charger_regulator(bq2419x, pdata);
if (ret < 0) {
dev_err(&client->dev,
"Charger regualtor init failed %d\n", ret);
return ret;
}
ret = bq2419x_init_vbus_regulator(bq2419x, pdata);
if (ret < 0) {
dev_err(&client->dev,
"VBUS regualtor init failed %d\n", ret);
goto scrub_chg_reg;
}
init_kthread_worker(&bq2419x->bq_kworker);
bq2419x->bq_kworker_task = kthread_run(kthread_worker_fn,
&bq2419x->bq_kworker,
dev_name(bq2419x->dev));
if (IS_ERR(bq2419x->bq_kworker_task)) {
ret = PTR_ERR(bq2419x->bq_kworker_task);
dev_err(&client->dev, "Kworker task creation failed %d\n", ret);
goto scrub_vbus_reg;
}
init_kthread_work(&bq2419x->bq_wdt_work, bq2419x_work_thread);
sched_setscheduler(bq2419x->bq_kworker_task,
SCHED_FIFO, &bq2419x_param);
queue_kthread_work(&bq2419x->bq_kworker, &bq2419x->bq_wdt_work);
ret = bq2419x_watchdog_init(bq2419x, bq2419x->wdt_time_sec, "PROBE");
if (ret < 0) {
dev_err(bq2419x->dev, "BQWDT init failed %d\n", ret);
goto scrub_kthread;
}
ret = bq2419x_fault_clear_sts(bq2419x);
if (ret < 0) {
dev_err(bq2419x->dev, "fault clear status failed %d\n", ret);
goto scrub_kthread;
}
ret = request_threaded_irq(bq2419x->irq, NULL,
bq2419x_irq, IRQF_TRIGGER_FALLING,
dev_name(bq2419x->dev), bq2419x);
if (ret < 0) {
dev_err(bq2419x->dev, "request IRQ %d fail, err = %d\n",
bq2419x->irq, ret);
goto scrub_kthread;
}
/* enable charging */
ret = bq2419x_charger_enable(bq2419x);
if (ret < 0)
goto scrub_irq;
return 0;
scrub_irq:
free_irq(bq2419x->irq, bq2419x);
scrub_kthread:
bq2419x->stop_thread = true;
flush_kthread_worker(&bq2419x->bq_kworker);
kthread_stop(bq2419x->bq_kworker_task);
scrub_vbus_reg:
regulator_unregister(bq2419x->vbus_rdev);
scrub_chg_reg:
regulator_unregister(bq2419x->chg_rdev);
mutex_destroy(&bq2419x->mutex);
return ret;
}
