evie/android_kernel_oneplus_msm8998
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msm: mdss: add MDSS_EVENT_LINK READY

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At split display case, DSI panel initialization dcs
commands need to be sent to panel when both dsi links
are in LP-11 state. Add MDSS_EVENT_LINK_READY to have
both dsi controller's phy/pll initialized which brings
link to LP-11 state first so that panel initialization
dcs commands be received by panel successfully to bring
panel to display_on state.

Change-Id: I4b33fafd2673be1f068819bee25fc1a335eb0fe8
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
This commit is contained in:
Kuogee Hsieh 2014-10-10 08:42:43 -07:00 • committed by David Keitel
parent f6da3384e3
commit 92d9bcd42e
4 changed files with 14 additions and 4 deletions
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6
drivers/video/fbdev/msm/mdss_dsi.c
View file

@ -1193,15 +1193,17 @@ static int mdss_dsi_event_handler(struct mdss_panel_data *pdata,
}
ctrl_pdata = container_of(pdata, struct mdss_dsi_ctrl_pdata,
panel_data);
pr_debug("%s+:event=%d\n", __func__, event);
pr_debug("%s+: ctrl=%d event=%d\n", __func__, ctrl_pdata->ndx, event);
MDSS_XLOG(event, arg, ctrl_pdata->ndx, 0x3333);
switch (event) {
case MDSS_EVENT_UNBLANK:
case MDSS_EVENT_LINK_READY:
rc = mdss_dsi_on(pdata);
mdss_dsi_op_mode_config(pdata->panel_info.mipi.mode,
pdata);
break;
case MDSS_EVENT_UNBLANK:
if (ctrl_pdata->on_cmds.link_state == DSI_LP_MODE)
rc = mdss_dsi_unblank(pdata);
break;

3
drivers/video/fbdev/msm/mdss_mdp_intf_cmd.c
View file

@ -734,6 +734,9 @@ int mdss_mdp_cmd_kickoff(struct mdss_mdp_ctl *ctl, void *arg)
}
if (__mdss_mdp_cmd_panel_power_off(ctx)) {
rc = mdss_mdp_ctl_intf_event(ctl, MDSS_EVENT_LINK_READY, NULL);
WARN(rc, "intf %d link ready error (%d)\n", ctl->intf_num, rc);
rc = mdss_mdp_ctl_intf_event(ctl, MDSS_EVENT_UNBLANK, NULL);
WARN(rc, "intf %d unblank error (%d)\n", ctl->intf_num, rc);

7
drivers/video/fbdev/msm/mdss_mdp_intf_video.c
View file

@ -926,15 +926,18 @@ static int mdss_mdp_video_display(struct mdss_mdp_ctl *ctl, void *arg)
MDSS_XLOG(ctl->num, ctl->underrun_cnt);
if (!ctx->timegen_en) {
rc = mdss_mdp_ctl_intf_event(ctl, MDSS_EVENT_UNBLANK, NULL);
rc = mdss_mdp_ctl_intf_event(ctl, MDSS_EVENT_LINK_READY, NULL);
if (rc) {
pr_warn("intf #%d unblank error (%d)\n",
pr_warn("intf #%d link ready error (%d)\n",
ctl->intf_num, rc);
video_vsync_irq_disable(ctl);
ctx->wait_pending = 0;
return rc;
}
rc = mdss_mdp_ctl_intf_event(ctl, MDSS_EVENT_UNBLANK, NULL);
WARN(rc, "intf %d unblank error (%d)\n", ctl->intf_num, rc);
pr_debug("enabling timing gen for intf=%d\n", ctl->intf_num);
if (pdata->panel_info.cont_splash_enabled &&

2
drivers/video/fbdev/msm/mdss_panel.h
View file

@ -137,6 +137,7 @@ struct mdss_intf_recovery {
* enum mdss_intf_events - Different events generated by MDP core
*
* @MDSS_EVENT_RESET: MDP control path is being (re)initialized.
* @MDSS_EVENT_LINK_READY Interface data path inited to ready state.
* @MDSS_EVENT_UNBLANK: Sent before first frame update from MDP is
* sent to panel.
* @MDSS_EVENT_PANEL_ON: After first frame update from MDP.
@ -182,6 +183,7 @@ struct mdss_intf_recovery {
*/
enum mdss_intf_events {
MDSS_EVENT_RESET = 1,
MDSS_EVENT_LINK_READY,
MDSS_EVENT_UNBLANK,
MDSS_EVENT_PANEL_ON,
MDSS_EVENT_BLANK,