/* 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;
}
static void decon_clock_gating_handler(struct kthread_work *work)
{
struct display_driver *dispdrv = get_display_driver();
if (dispdrv->pm_status.clk_idle_count > MAX_CLK_GATING_COUNT)
display_block_clock_off(dispdrv);
init_gating_idle_count(dispdrv);
disp_pm_gate_lock(dispdrv, false);
pm_debug("display_block_clock_off -");
}
static void decon_power_gating_handler(struct kthread_work *work)
{
struct display_driver *dispdrv = get_display_driver();
if (dispdrv->pm_status.pwr_idle_count > MAX_PWR_GATING_COUNT) {
if (!check_camera_is_running()) {
display_hibernation_power_off(dispdrv);
init_gating_idle_count(dispdrv);
}
} else if (dispdrv->decon_driver.sfb->power_state == POWER_HIBER_DOWN) {
display_hibernation_power_on(dispdrv);
}
}
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_power_gating);
pm_runtime_get_sync(dispdrv->display_driver);
display_block_clock_on(dispdrv);
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);
/* 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;
}
/* 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;
}