Commit 9eb50aa7 authored Jul 19, 2018 by Rashi Bindra

msm: mdss: Change function from disbale_irq_nosync to disbale_irq



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>

parent e981a128

drivers/video/fbdev/msm/mdss_dsi_host.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2218,7 +2218,7 @@ 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",