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Commit 75779ed1 authored by Raghavendra Ambadas's avatar Raghavendra Ambadas Committed by raghavendra ambadas
Browse files

fbdev: msm: check for panel status before waiting for pp done 



Panel may go bad during esd test, in such cases do not wait
for PP done when switching from ON to LP1/LP2, which will cause
fifo error's and black screen.

Change-Id: I2a416e2a5e332f0be00215734342405292410c41
Signed-off-by: default avatarRaghavendra Ambadas <rambad@codeaurora.org>
parent 38ec7e0c

drivers/video/fbdev/msm/mdss_mdp_intf_cmd.c

+5 −2
Original line number Diff line number Diff line 
/* Copyright (c) 2013-2018, The Linux Foundation. All rights reserved.

/* Copyright (c) 2013-2019, 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
@@ -3232,6 +3232,7 @@ int mdss_mdp_cmd_stop(struct mdss_mdp_ctl *ctl, int panel_power_state) 
	struct mdss_mdp_cmd_ctx *ctx = ctl->intf_ctx[MASTER_CTX];

	struct mdss_mdp_cmd_ctx *sctx = NULL;

	struct mdss_mdp_ctl *sctl = mdss_mdp_get_split_ctl(ctl);

	struct mdss_panel_data *pdata;

	bool panel_off = false;

	bool turn_off_clocks = false;

	bool send_panel_events = false;
@@ -3242,6 +3243,7 @@ int mdss_mdp_cmd_stop(struct mdss_mdp_ctl *ctl, int panel_power_state) 
		return -ENODEV;

	}



	pdata = ctl->panel_data;

	if (__mdss_mdp_cmd_is_panel_power_off(ctx)) {

		pr_debug("%s: panel already off\n", __func__);

		return 0;
@@ -3278,7 +3280,8 @@ int mdss_mdp_cmd_stop(struct mdss_mdp_ctl *ctl, int panel_power_state) 
		send_panel_events = true;

		if (mdss_panel_is_power_on_ulp(panel_power_state)) {

			turn_off_clocks = true;

		} else if (atomic_read(&ctx->koff_cnt)) {

		} else if (atomic_read(&ctx->koff_cnt) &&

				!pdata->panel_info.panel_dead) {

			/*

			 * Transition from interactive to low power

			 * Wait for kickoffs to finish