bcm27xx: update patches from RPi foundation

[openwrt/staging/luka.git] / target / linux / bcm27xx / patches-5.4 / 950-0557-drm-vc4-crtc-Use-a-shared-interrupt.patch

diff --git a/target/linux/bcm27xx/patches-5.4/950-0557-drm-vc4-crtc-Use-a-shared-interrupt.patch b/target/linux/bcm27xx/patches-5.4/950-0557-drm-vc4-crtc-Use-a-shared-interrupt.patch
new file mode 100644 (file)
index 0000000..b517b54
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0557-drm-vc4-crtc-Use-a-shared-interrupt.patch
@@ -0,0 +1,26 @@
+From 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;
+