From: Fabien Dessenne <fabien.dessenne@st.com>
Date: Wed, 24 Apr 2019 14:03:20 +0000 (+0200)
Subject: drm/stm: ltdc: manage the get_irq probe defer case
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=9e759fc7dcd6d416f64567ae8b3b07184c60dedb;p=openwrt%2Fstaging%2Fblogic.git

drm/stm: ltdc: manage the get_irq probe defer case

Manage the -EPROBE_DEFER error case for the ltdc IRQ.

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Acked-by: Philippe Cornu <philippe.cornu@st.com>
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1556114601-30936-2-git-send-email-fabien.dessenne@st.com
---

diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c
index 566b0d8af9b1..521ba83545db 100644
--- a/drivers/gpu/drm/stm/ltdc.c
+++ b/drivers/gpu/drm/stm/ltdc.c
@@ -1174,6 +1174,9 @@ int ltdc_load(struct drm_device *ddev)
 
 	for (i = 0; i < MAX_IRQ; i++) {
 		irq = platform_get_irq(pdev, i);
+		if (irq == -EPROBE_DEFER)
+			goto err;
+
 		if (irq < 0)
 			continue;