bcm27xx: remove linux 5.10 compatibility

[openwrt/staging/chunkeey.git] / target / linux / bcm27xx / patches-5.10 / 950-0677-drm-vc4-hdmi-Only-call-into-DRM-framework-if-registe.patch

diff --git a/target/linux/bcm27xx/patches-5.10/950-0677-drm-vc4-hdmi-Only-call-into-DRM-framework-if-registe.patch b/target/linux/bcm27xx/patches-5.10/950-0677-drm-vc4-hdmi-Only-call-into-DRM-framework-if-registe.patch
deleted file mode 100644 (file)
index 6297691..0000000
--- a/target/linux/bcm27xx/patches-5.10/950-0677-drm-vc4-hdmi-Only-call-into-DRM-framework-if-registe.patch
+++ /dev/null
@@ -1,35 +0,0 @@
-From a4ea60641c2e5ac11d3472e723b33b36f16e6bcb Mon Sep 17 00:00:00 2001
-From: Maxime Ripard <maxime@cerno.tech>
-Date: Mon, 5 Jul 2021 16:15:56 +0200
-Subject: [PATCH] drm/vc4: hdmi: Only call into DRM framework if
- registered
-
-Our hotplug handler will currently call the drm_kms_helper_hotplug_event
-every time a hotplug interrupt is called.
-
-However, since the device is registered after all the drivers have
-finished their bind callback, we have a window between when we install
-our interrupt handler and when drm_dev_register() is eventually called
-where our handler can run and call drm_kms_helper_hotplug_event but the
-device hasn't been registered yet, causing a null pointer dereference.
-
-Fix this by making sure we only call drm_kms_helper_hotplug_event if our
-device has been properly registered.
-
-Fixes: f4790083c7c2 ("drm/vc4: hdmi: Rely on interrupts to handle hotplug")
-Signed-off-by: Maxime Ripard <maxime@cerno.tech>
----
- drivers/gpu/drm/vc4/vc4_hdmi.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
---- a/drivers/gpu/drm/vc4/vc4_hdmi.c
-+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
-@@ -1603,7 +1603,7 @@ static irqreturn_t vc4_hdmi_hpd_irq_thre
-       struct vc4_hdmi *vc4_hdmi = priv;
-       struct drm_device *dev = vc4_hdmi->connector.dev;
- 
--      if (dev)
-+      if (dev && dev->registered)
-               drm_kms_helper_hotplug_event(dev);
- 
-       return IRQ_HANDLED;