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msm: mdss: Change function from disbale_irq_nosync to disbale_irq

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Potential deadlock can happen while we disable irq and at the same
time an irq is triggered to request for the same resource. Thus,
it will pre-empt the spin-lock. Hence, change the function call to
disbale_irq to prevent local interrupts.

Change-Id: I7b80810b13660df8801533d418c78f2db75dd5b6
Signed-off-by: Rashi Bindra <rbindra@codeaurora.org>
This commit is contained in:
Rashi Bindra 2018-07-19 12:40:52 +05:30
parent 74891ac5bf
commit fdbc0d26cc
1 changed files with 2 additions and 2 deletions
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4
drivers/video/fbdev/msm/mdss_dsi_host.c
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@ -1,4 +1,4 @@
/* Copyright (c) 2012-2017, The Linux Foundation. All rights reserved.
/* Copyright (c) 2012-2018, 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
@ -2263,7 +2263,7 @@ static int mdss_dsi_cmd_dma_tx(struct mdss_dsi_ctrl_pdata *ctrl,
/* clear CMD DMA and BTA_DONE isr only */
reg_val |= (DSI_INTR_CMD_DMA_DONE | DSI_INTR_BTA_DONE);
MIPI_OUTP(ctrl->ctrl_base + 0x0110, reg_val);
mdss_dsi_disable_irq_nosync(ctrl, DSI_CMD_TERM);
mdss_dsi_disable_irq(ctrl, DSI_CMD_TERM);
complete(&ctrl->dma_comp);
pr_warn("%s: dma tx done but irq not triggered\n",