diff options
| author | Harsh Sahu <hsahu@codeaurora.org> | 2017-06-02 17:48:10 -0700 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2017-06-08 15:16:24 -0700 |
| commit | 0bb5e6610af845ab5a2a45d550303baa4c4a437f (patch) | |
| tree | 6962515d9b7fab16f51106f69d01c8776a073a80 /drivers/video/fbdev | |
| parent | 9725c4d90bee3b0be78bb1fdc084df1ec08d7d24 (diff) | |
msm: mdss: handle vsync properly during dynamic resolution switch
During resolution switch, the vsync is disabled just before the switch
as part of ctrl stop, but it is not enabled back after the switch. This
change keeps track of vsync before the switch and handles it
appropriately after the switch.
Change-Id: I3eed93d7f7635217bac3c19c61f68154cacef56e
Signed-off-by: Harsh Sahu <hsahu@codeaurora.org>
Diffstat (limited to 'drivers/video/fbdev')
| -rw-r--r-- | drivers/video/fbdev/msm/mdss_mdp.h | 1 | ||||
| -rw-r--r-- | drivers/video/fbdev/msm/mdss_mdp_intf_cmd.c | 12 |
2 files changed, 13 insertions, 0 deletions
diff --git a/drivers/video/fbdev/msm/mdss_mdp.h b/drivers/video/fbdev/msm/mdss_mdp.h index 5a15b557e5c7..feea8986af91 100644 --- a/drivers/video/fbdev/msm/mdss_mdp.h +++ b/drivers/video/fbdev/msm/mdss_mdp.h @@ -586,6 +586,7 @@ struct mdss_mdp_ctl { struct mdss_mdp_avr_info avr_info; bool commit_in_progress; struct mutex ds_lock; + bool need_vsync_on; }; struct mdss_mdp_mixer { diff --git a/drivers/video/fbdev/msm/mdss_mdp_intf_cmd.c b/drivers/video/fbdev/msm/mdss_mdp_intf_cmd.c index 2e017fe5ec02..747b4e3e2f81 100644 --- a/drivers/video/fbdev/msm/mdss_mdp_intf_cmd.c +++ b/drivers/video/fbdev/msm/mdss_mdp_intf_cmd.c @@ -3859,12 +3859,24 @@ static int mdss_mdp_cmd_reconfigure(struct mdss_mdp_ctl *ctl, } ctl->switch_with_handoff = false; } + /* + * keep track of vsync, so it can be enabled as part + * of the post switch sequence + */ + if (ctl->vsync_handler.enabled) + ctl->need_vsync_on = true; mdss_mdp_ctl_stop(ctl, MDSS_PANEL_POWER_OFF); mdss_mdp_ctl_intf_event(ctl, MDSS_EVENT_DSI_DYNAMIC_SWITCH, (void *) mode, CTL_INTF_EVENT_FLAG_DEFAULT); } else { + if (ctl->need_vsync_on && + ctl->ops.add_vsync_handler) { + ctl->ops.add_vsync_handler(ctl, + &ctl->vsync_handler); + ctl->need_vsync_on = false; + } mdss_mdp_clk_ctrl(MDP_BLOCK_POWER_OFF); } } |