target/linux/bcm27xx/patches-5.4/950-0549-drm-vc4-crtc-Use-a-shared-interrupt.patch


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19From 5451dc04ff87dcf514c422f180ea5e23b7b60151 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Thu, 9 Jan 2020 18:40:49 +0100
Subject: [PATCH] drm/vc4: crtc: Use a shared interrupt

Some pixelvalves in vc5 use the same interrupt line so let's register our
interrupt handler as a shared one.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 drivers/gpu/drm/vc4/vc4_crtc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/vc4/vc4_crtc.c
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
@@ -1177,7 +1177,9 @@ static int vc4_crtc_bind(struct device *
 	CRTC_WRITE(PV_INTEN, 0);
 	CRTC_WRITE(PV_INTSTAT, PV_INT_VFP_START);
 	ret = devm_request_irq(dev, platform_get_irq(pdev, 0),
-			       vc4_crtc_irq_handler, 0, "vc4 crtc", vc4_crtc);
+			       vc4_crtc_irq_handler,
+			       IRQF_SHARED,
+			       "vc4 crtc", vc4_crtc);
 	if (ret)
 		goto err_destroy_planes;