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authorÁlvaro Fernández Rojas <noltari@gmail.com>2016-12-02 11:50:26 +0100
committerÁlvaro Fernández Rojas <noltari@gmail.com>2016-12-04 12:32:04 +0100
commit011f2c26f1b62e309f2eac6a3101bfe0a3c76c7e (patch)
treebe53d4f11f7625508ee3aea9889e854ab5b5f263 /target/linux/brcm2708/patches-4.4/0517-drm-vc4-Reject-doublescan-modes.patch
parent4257f6548b9480cdb436115b63d5c134c5e91303 (diff)
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brcm2708: update linux 4.4 patches to latest version
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0517-drm-vc4-Reject-doublescan-modes.patch')
-rw-r--r--target/linux/brcm2708/patches-4.4/0517-drm-vc4-Reject-doublescan-modes.patch30
1 files changed, 30 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0517-drm-vc4-Reject-doublescan-modes.patch b/target/linux/brcm2708/patches-4.4/0517-drm-vc4-Reject-doublescan-modes.patch
new file mode 100644
index 0000000000..79d0d39780
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0517-drm-vc4-Reject-doublescan-modes.patch
@@ -0,0 +1,30 @@
+From 30f69de2c6e1dedc4d071a24a0690e81118421d9 Mon Sep 17 00:00:00 2001
+From: Mario Kleiner <mario.kleiner.de@gmail.com>
+Date: Tue, 19 Jul 2016 20:58:59 +0200
+Subject: [PATCH] drm/vc4: Reject doublescan modes.
+
+We can't handle doublescan modes at the moment, so if
+userspace tries to set one, reject the mode set.
+
+Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
+Signed-off-by: Eric Anholt <eric@anholt.net>
+---
+ drivers/gpu/drm/vc4/vc4_crtc.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+--- a/drivers/gpu/drm/vc4/vc4_crtc.c
++++ b/drivers/gpu/drm/vc4/vc4_crtc.c
+@@ -542,6 +542,13 @@ static bool vc4_crtc_mode_fixup(struct d
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+ {
++ /* Do not allow doublescan modes from user space */
++ if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN) {
++ DRM_DEBUG_KMS("[CRTC:%d] Doublescan mode rejected.\n",
++ crtc->base.id);
++ return false;
++ }
++
+ /*
+ * Interlaced video modes got CRTC_INTERLACE_HALVE_V applied when
+ * coming from user space. We don't want this, as it screws up