Apparently komeda silently assumes that there is only 1 plane in an AFBC buffer. Make this assumption explicit.
Signed-off-by: Andrzej Pietrasiewicz andrzej.p@collabora.com --- drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c b/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c index ce96389e3c40..157b73005ef8 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c @@ -170,6 +170,11 @@ komeda_fb_create(struct drm_device *dev, struct drm_file *file, info = kfb->base.format;
if (kfb->base.modifier) { + if (info->num_planes != 1) { + DRM_DEBUG_KMS("AFBC requires exactly 1 plane.\n"); + kfree(kfb); + return ERR_PTR(-EINVAL); + } ret = komeda_fb_afbc_size_check(kfb, info, file, mode_cmd); } else { if (komeda_fb_check_src_coords(kfb, 0, 0, kfb->base.width,