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Commit a406b7c2 authored by raghavendra ambadas's avatar raghavendra ambadas
Browse files

fbdev: msm: try recovering from PP timeout without panic 



Driver dumps mdp register and xlog as soon as pingpong timeout
occurs. It is possible to recover device while waiting for TE signal,
so call panic if pingpong timeout happens for 10 consecutive frames.

Change-Id: I1661b21b3179f77a0a8daa8d2cde2115c7a38f5e
Signed-off-by: default avatarRaghavendra Ambadas <rambad@codeaurora.org>
parent 4b34bd70

drivers/video/fbdev/msm/mdss_mdp_intf_cmd.c

+1 −5
Original line number Diff line number Diff line 
/* Copyright (c) 2013-2017, The Linux Foundation. All rights reserved.

/* Copyright (c) 2013-2018, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -2161,10 +2161,6 @@ static int mdss_mdp_cmd_wait4pingpong(struct mdss_mdp_ctl *ctl, void *arg) 
			mdss_fb_report_panel_dead(ctl->mfd);

		} else if (ctx->pp_timeout_report_cnt == 0) {

			MDSS_XLOG(0xbad);

			MDSS_XLOG_TOUT_HANDLER("mdp", "dsi0_ctrl", "dsi0_phy",

				"dsi1_ctrl", "dsi1_phy", "vbif", "vbif_nrt",

				"dbg_bus", "vbif_dbg_bus",

				"dsi_dbg_bus", "panic");

		} else if (ctx->pp_timeout_report_cnt == MAX_RECOVERY_TRIALS) {

			MDSS_XLOG(0xbad2);

			MDSS_XLOG_TOUT_HANDLER("mdp", "dsi0_ctrl", "dsi0_phy",