From: Maxime Ripard Date: Thu, 3 Sep 2020 08:00:38 +0000 (+0200) Subject: drm/vc4: plane: Create more planes X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=0ddd59c56e6b18919dc3f62ebaa615d4ec7daabd;p=linux.git 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 Tested-by: Chanwoo Choi Tested-by: Hoegeun Kwon Tested-by: Stefan Wahren Reviewed-by: Eric Anholt Link: https://patchwork.freedesktop.org/patch/msgid/b41003001541fc2bb23668c699c0369ff7983be8.1599120059.git-series.maxime@cerno.tech --- diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c index 23916814b4e3a..1e38e603f83b9 100644 --- a/drivers/gpu/drm/vc4/vc4_plane.c +++ b/drivers/gpu/drm/vc4/vc4_plane.c @@ -1384,7 +1384,7 @@ int vc4_plane_create_additional_planes(struct drm_device *drm) * 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);