diff options
| -rw-r--r-- | drivers/video/fbdev/msm/mdss_fb.c | 22 | ||||
| -rw-r--r-- | drivers/video/fbdev/msm/mdss_fb.h | 1 | ||||
| -rw-r--r-- | drivers/video/fbdev/msm/mdss_mdp.c | 17 |
3 files changed, 40 insertions, 0 deletions
diff --git a/drivers/video/fbdev/msm/mdss_fb.c b/drivers/video/fbdev/msm/mdss_fb.c index f4c4c509410a..636eea3c9bcc 100644 --- a/drivers/video/fbdev/msm/mdss_fb.c +++ b/drivers/video/fbdev/msm/mdss_fb.c @@ -892,6 +892,12 @@ static ssize_t mdss_fb_get_persist_mode(struct device *dev, return ret; } +static ssize_t mdss_fb_idle_pc_notify(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return scnprintf(buf, PAGE_SIZE, "idle power collapsed\n"); +} + static DEVICE_ATTR(msm_fb_type, S_IRUGO, mdss_fb_get_type, NULL); static DEVICE_ATTR(msm_fb_split, S_IRUGO | S_IWUSR, mdss_fb_show_split, mdss_fb_store_split); @@ -912,6 +918,8 @@ static DEVICE_ATTR(measured_fps, S_IRUGO | S_IWUSR | S_IWGRP, mdss_fb_get_fps_info, NULL); static DEVICE_ATTR(msm_fb_persist_mode, S_IRUGO | S_IWUSR, mdss_fb_get_persist_mode, mdss_fb_change_persist_mode); +static DEVICE_ATTR(idle_power_collapse, S_IRUGO, mdss_fb_idle_pc_notify, NULL); + static struct attribute *mdss_fb_attrs[] = { &dev_attr_msm_fb_type.attr, &dev_attr_msm_fb_split.attr, @@ -925,6 +933,7 @@ static struct attribute *mdss_fb_attrs[] = { &dev_attr_msm_fb_dfps_mode.attr, &dev_attr_measured_fps.attr, &dev_attr_msm_fb_persist_mode.attr, + &dev_attr_idle_power_collapse.attr, NULL, }; @@ -5176,3 +5185,16 @@ void mdss_fb_calc_fps(struct msm_fb_data_type *mfd) mfd->fps_info.frame_count = 0; } } + +void mdss_fb_idle_pc(struct msm_fb_data_type *mfd) +{ + struct mdss_overlay_private *mdp5_data = mfd_to_mdp5_data(mfd); + + if (mdss_fb_is_power_off(mfd)) + return; + + if ((mfd->panel_info->type == MIPI_CMD_PANEL) && mdp5_data) { + pr_debug("Notify fb%d idle power collapsed\n", mfd->index); + sysfs_notify(&mfd->fbi->dev->kobj, NULL, "idle_power_collapse"); + } +} diff --git a/drivers/video/fbdev/msm/mdss_fb.h b/drivers/video/fbdev/msm/mdss_fb.h index 111d7cfc7c9a..d64580a35775 100644 --- a/drivers/video/fbdev/msm/mdss_fb.h +++ b/drivers/video/fbdev/msm/mdss_fb.h @@ -468,4 +468,5 @@ void mdss_fb_report_panel_dead(struct msm_fb_data_type *mfd); void mdss_panelinfo_to_fb_var(struct mdss_panel_info *pinfo, struct fb_var_screeninfo *var); void mdss_fb_calc_fps(struct msm_fb_data_type *mfd); +void mdss_fb_idle_pc(struct msm_fb_data_type *mfd); #endif /* MDSS_FB_H */ diff --git a/drivers/video/fbdev/msm/mdss_mdp.c b/drivers/video/fbdev/msm/mdss_mdp.c index d8d11f21f3b2..12f19d5ef728 100644 --- a/drivers/video/fbdev/msm/mdss_mdp.c +++ b/drivers/video/fbdev/msm/mdss_mdp.c @@ -5092,6 +5092,22 @@ vreg_set_voltage_fail: } /** + * mdss_mdp_notify_idle_pc() - Notify fb driver of idle power collapse + * @mdata: MDP private data + * + * This function is called if there are active overlays. + */ +static void mdss_mdp_notify_idle_pc(struct mdss_data_type *mdata) +{ + int i; + + for (i = 0; i < mdata->nctl; i++) + if ((mdata->ctl_off[i].ref_cnt) && + !mdss_mdp_ctl_is_power_off(&mdata->ctl_off[i])) + mdss_fb_idle_pc(mdata->ctl_off[i].mfd); +} + +/** * mdss_mdp_footswitch_ctrl() - Disable/enable MDSS GDSC and CX/Batfet rails * @mdata: MDP private data * @on: 1 to turn on footswitch, 0 to turn off footswitch @@ -5155,6 +5171,7 @@ static void mdss_mdp_footswitch_ctrl(struct mdss_data_type *mdata, int on) mdss_mdp_memory_retention_ctrl(MEM_RETAIN_ON, PERIPH_RETAIN_OFF); mdata->idle_pc = true; + mdss_mdp_notify_idle_pc(mdata); pr_debug("idle pc. active overlays=%d\n", active_cnt); } else { |