int display_hibernation_power_off(struct display_driver *dispdrv)
{
int ret = 0;
struct s3c_fb *sfb = dispdrv->decon_driver.sfb;
disp_pm_gate_lock(dispdrv, true);
mutex_lock(&dispdrv->pm_status.pm_lock);
if (sfb->power_state == POWER_DOWN) {
pr_info("%s, DECON are already power off state\n", __func__);
goto done;
}
if (atomic_read(&dispdrv->pm_status.lock_count) > GATE_LOCK_CNT) {
pr_info("%s, DECON does not need power-off\n", __func__);
goto done;
}
if (get_display_line_count(dispdrv)) {
pm_debug("wait until last frame is totally transferred %d:",
get_display_line_count(dispdrv));
goto done;
}
pm_info("##### +");
sfb->power_state = POWER_HIBER_DOWN;
__display_hibernation_power_off(dispdrv);
disp_pm_runtime_put_sync(dispdrv);
request_dynamic_hotplug(true);
pm_info("##### -\n");
done:
mutex_unlock(&dispdrv->pm_status.pm_lock);
disp_pm_gate_lock(dispdrv, false);
return ret;
}
static int __display_block_clock_off(struct display_driver *dispdrv)
{
if (get_display_line_count(dispdrv)) {
pm_debug("wait until last frame is totally transferred %d:",
get_display_line_count(dispdrv));
return -EBUSY;
}
/* DECON -> MIC -> DSIM */
call_pm_ops(dispdrv, decon_driver, clk_off, dispdrv);
#ifdef CONFIG_DECON_MIC
call_pm_ops(dispdrv, mic_driver, clk_off, dispdrv);
#endif
call_pm_ops(dispdrv, dsi_driver, clk_off, dispdrv);
return 0;
}
static int __display_block_clock_off(struct display_driver *dispdrv)
{
if (get_display_line_count(dispdrv)) {
pm_debug("wait until last frame is totally transferred %d:",
get_display_line_count(dispdrv));
return -EBUSY;
}
/* SMMU -> DECON -> MIC -> DSIM */
#ifdef CONFIG_ION_EXYNOS
if (dispdrv->platform_status > DISP_STATUS_PM0)
iovmm_deactivate(dispdrv->decon_driver.sfb->dev);
#endif
call_pm_ops(dispdrv, decon_driver, clk_off, dispdrv);
#ifdef CONFIG_DECON_MIC
call_pm_ops(dispdrv, mic_driver, clk_off, dispdrv);
#endif
call_pm_ops(dispdrv, dsi_driver, clk_off, dispdrv);
return 0;
}