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Commit 6254dd2d authored by Kalyan Thota's avatar Kalyan Thota
Browse files

msm: mdss: add xlog for debug in ping_pong timeout 



Add addtional debug info to know the commit count
on pingpong timeout.

Change-Id: I1f40a5eee1a14efbf03487db9d398e04cd2e6f7c
Signed-off-by: default avatarKalyan Thota <kalyant@codeaurora.org>
parent 9da4ddc1

drivers/video/msm/mdss/mdss_mdp_intf_cmd.c

+5 −4
Original line number Diff line number Diff line 
/* Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.

/* Copyright (c) 2013-2016, 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
@@ -1505,10 +1505,10 @@ static int mdss_mdp_cmd_wait4pingpong(struct mdss_mdp_ctl *ctl, void *arg) 


	if (rc <= 0) {

		u32 status, mask;



		mask = BIT(MDSS_MDP_IRQ_PING_PONG_COMP + ctx->current_pp_num);

		status = mask & readl_relaxed(ctl->mdata->mdp_base +

				MDSS_MDP_REG_INTR_STATUS);

		MDSS_XLOG(status, atomic_read(&ctx->koff_cnt), rc);

		if (status) {

			pr_warn("pp done but irq not triggered\n");

			mdss_mdp_irq_clear(ctl->mdata,
@@ -1524,9 +1524,10 @@ static int mdss_mdp_cmd_wait4pingpong(struct mdss_mdp_ctl *ctl, void *arg) 
	}



	if (rc <= 0) {

		pr_err("%s: wait4pingpong timed out. ctl=%d rc=%d cnt=%d\n",

		pr_err("%s:wait4pingpong timed out ctl=%d rc=%d cnt=%d koff_cnt=%d\n",

				__func__,

				ctl->num, rc, ctx->pp_timeout_report_cnt);

				ctl->num, rc, ctx->pp_timeout_report_cnt,

				atomic_read(&ctx->koff_cnt));

		if (ctx->pp_timeout_report_cnt == 0) {

			MDSS_XLOG(0xbad);

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