static int mdp3_ctrl_off(struct msm_fb_data_type *mfd)
{
int rc = 0;
struct mdp3_session_data *mdp3_session;
struct mdss_panel_data *panel;
pr_debug("mdp3_ctrl_off\n");
mdp3_session = (struct mdp3_session_data *)mfd->mdp.private1;
if (!mdp3_session || !mdp3_session->panel || !mdp3_session->dma ||
!mdp3_session->intf) {
pr_err("mdp3_ctrl_on no device");
return -ENODEV;
}
panel = mdp3_session->panel;
mutex_lock(&mdp3_session->lock);
if (panel && panel->set_backlight)
panel->set_backlight(panel, 0);
if (!mdp3_session->status) {
pr_debug("fb%d is off already", mfd->index);
goto off_error;
}
mdp3_ctrl_clk_enable(mfd, 1);
mdp3_histogram_stop(mdp3_session, MDP_BLOCK_DMA_P);
if (panel->event_handler)
rc = panel->event_handler(panel, MDSS_EVENT_PANEL_OFF, NULL);
if (rc)
pr_err("fail to turn off the panel\n");
rc = mdp3_session->dma->stop(mdp3_session->dma, mdp3_session->intf);
if (rc)
pr_debug("fail to stop the MDP3 dma\n");
/* Wait for TG to turn off */
msleep(20);
mdp3_irq_deregister();
pr_debug("mdp3_ctrl_off stop clock\n");
if (mdp3_session->clk_on) {
rc = mdp3_res_update(0, 1, MDP3_CLIENT_DMA_P);
if (rc)
pr_err("mdp clock resource release failed\n");
pr_debug("mdp3_ctrl_off stop dsi controller\n");
if (panel->event_handler)
rc = panel->event_handler(panel,
MDSS_EVENT_BLANK, NULL);
if (rc)
pr_err("fail to turn off the panel\n");
}
mdp3_ctrl_notifier_unregister(mdp3_session,
&mdp3_session->mfd->mdp_sync_pt_data.notifier);
mdp3_enable_regulator(false);
mdp3_session->vsync_enabled = 0;
atomic_set(&mdp3_session->vsync_countdown, 0);
atomic_set(&mdp3_session->dma_done_cnt, 0);
mdp3_session->clk_on = 0;
mdp3_session->in_splash_screen = 0;
off_error:
mdp3_session->status = 0;
mdp3_bufq_deinit(&mdp3_session->bufq_out);
if (mdp3_session->overlay.id != MSMFB_NEW_REQUEST) {
mdp3_session->overlay.id = MSMFB_NEW_REQUEST;
mdp3_bufq_deinit(&mdp3_session->bufq_in);
}
mutex_unlock(&mdp3_session->lock);
return 0;
}
static int mdp3_ctrl_off(struct msm_fb_data_type *mfd)
{
int rc = 0;
struct mdp3_session_data *mdp3_session;
struct mdss_panel_data *panel;
pr_debug("mdp3_ctrl_off\n");
mdp3_session = (struct mdp3_session_data *)mfd->mdp.private1;
if (!mdp3_session || !mdp3_session->panel || !mdp3_session->dma ||
!mdp3_session->intf) {
pr_err("mdp3_ctrl_on no device");
return -ENODEV;
}
panel = mdp3_session->panel;
mutex_lock(&mdp3_session->lock);
if (!mdp3_session->status) {
pr_debug("fb%d is off already", mfd->index);
goto off_error;
}
mdp3_ctrl_clk_enable(mfd, 1);
mdp3_histogram_stop(mdp3_session, MDP_BLOCK_DMA_P);
rc = mdp3_session->dma->stop(mdp3_session->dma, mdp3_session->intf);
if (rc)
pr_debug("fail to stop the MDP3 dma\n");
if (panel->event_handler)
rc = panel->event_handler(panel, MDSS_EVENT_PANEL_OFF, NULL);
if (rc)
pr_err("fail to turn off the panel\n");
mdp3_irq_deregister();
pr_debug("mdp3_ctrl_off stop clock\n");
if (mdp3_session->clk_on) {
rc = mdp3_clk_enable(0, 1);
if (rc)
pr_err("mdp clock resource release failed\n");
pr_debug("mdp3_ctrl_off stop dsi controller\n");
if (panel->event_handler)
rc = panel->event_handler(panel,
MDSS_EVENT_BLANK, NULL);
if (rc)
pr_err("fail to turn off the panel\n");
}
mdp3_clk_unprepare();
pr_debug("mdp3_ctrl_off release bus\n");
rc = mdp3_ctrl_res_req_bus(mfd, 0);
if (rc)
pr_err("mdp bus resource release failed\n");
rc = mdp3_iommu_disable(MDP3_CLIENT_DMA_P);
if (rc)
pr_err("fail to dettach MDP DMA SMMU\n");
mdp3_ctrl_notifier_unregister(mdp3_session,
&mdp3_session->mfd->mdp_sync_pt_data.notifier);
mdp3_batfet_ctrl(false);
mdp3_session->vsync_enabled = 0;
atomic_set(&mdp3_session->vsync_countdown, 0);
mdp3_session->clk_on = 0;
off_error:
mdp3_session->status = 0;
mdp3_bufq_deinit(&mdp3_session->bufq_out);
mutex_unlock(&mdp3_session->lock);
if (mdp3_session->overlay.id != MSMFB_NEW_REQUEST)
mdp3_overlay_unset(mfd, mdp3_session->overlay.id);
return 0;
}