From b79a33509a3aa863cdf54d24e1a4a0cc2c6fe84c Mon Sep 17 00:00:00 2001 From: Maxime Ripard 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 --- 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 @@ -1463,7 +1463,7 @@ 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);