Commit 9c4ed4a1 authored Aug 22, 2017 by Tatenda Chipeperekwa

drm/msm/dp: fix handling of unsupported IRQ requests



Fix the handling of unsupported IRQ requests by making these
requests no-ops. This will prevent the DisplayPort driver
from entering into a loop in which the display is repeatedly
powered on unnecessarily.

CRs-Fixed: 2094794
Change-Id: I4eabfb6e50ac405a9ae1110841adc178822e0084
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>

parent 8ce1d5ff

drivers/gpu/drm/msm/dp/dp_display.c

+3 −4

Original line number	Diff line number	Diff line
		@@ -668,13 +668,12 @@ static int dp_display_usbpd_attention_cb(struct device *dev)

		rc = dp->link->process_request(dp->link);
		/* check for any test request issued by sink */
		if (!rc) {
		if (!rc)
		dp_display_handle_hpd_irq(dp);

		dp->hpd_irq_on = false;
		goto end;
		}
		dp->hpd_irq_on = false;
		}

		if (!dp->usbpd->hpd_high) {
		dp_display_process_hpd_low(dp);