diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0551-drm-vc4-plane-Create-more-planes.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0551-drm-vc4-plane-Create-more-planes.patch | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0551-drm-vc4-plane-Create-more-planes.patch b/target/linux/bcm27xx/patches-5.4/950-0551-drm-vc4-plane-Create-more-planes.patch new file mode 100644 index 0000000000..08383e3708 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0551-drm-vc4-plane-Create-more-planes.patch @@ -0,0 +1,32 @@ +From b79a33509a3aa863cdf54d24e1a4a0cc2c6fe84c Mon Sep 17 00:00:00 2001 +From: Maxime Ripard <maxime@cerno.tech> +Date: Thu, 6 Feb 2020 14:52:42 +0100 +Subject: [PATCH] drm/vc4: plane: Create more planes + +Let's now create more planes that can be affected to all the CRTCs. + +vc4 has 3 CRTCs, 1 primary and 1 cursor each, and was having 24 (8 +planes per CRTC) overlays. + +However, vc5 has 5 CRTCs, so keeping the same logic would put us at 50 +planes which is well above the 32 planes limit imposed by DRM. + +Using 16 seems like a good tradeoff between staying under 32 and yet +providing enough planes. + +Signed-off-by: Maxime Ripard <maxime@cerno.tech> +--- + drivers/gpu/drm/vc4/vc4_plane.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/gpu/drm/vc4/vc4_plane.c ++++ b/drivers/gpu/drm/vc4/vc4_plane.c +@@ -1453,7 +1453,7 @@ int vc4_plane_create_additional_planes(s + * modest number of planes to expose, that should hopefully + * still cover any sane usecase. + */ +- for (i = 0; i < 8; i++) { ++ for (i = 0; i < 16; i++) { + struct drm_plane *plane = + vc4_plane_init(drm, DRM_PLANE_TYPE_OVERLAY); + |