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Commit 01abbca9 authored by Kuogee Hsieh's avatar Kuogee Hsieh
Browse files

msm: mdss: add MDSS_EVENT_LINK READY 



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: default avatarKuogee Hsieh <khsieh@codeaurora.org>
parent 093d9369

drivers/video/msm/mdss/mdss_dsi.c

+4 −2
Original line number Diff line number Diff line
@@ -1185,15 +1185,17 @@ 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;

drivers/video/msm/mdss/mdss_mdp_intf_cmd.c

+3 −0
Original line number Diff line number Diff line
@@ -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);

drivers/video/msm/mdss/mdss_mdp_intf_video.c

+5 −2
Original line number Diff line number Diff line
@@ -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 &&

drivers/video/msm/mdss/mdss_panel.h

+2 −0
Original line number Diff line number Diff line
@@ -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.
@@ -180,6 +181,7 @@ 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,