drm_sysfb_get_stride_si
int drm_sysfb_get_stride_si(struct drm_device *dev, const struct screen_info *si,
EXPORT_SYMBOL(drm_sysfb_get_stride_si);
stride = drm_sysfb_get_stride_si(dev, si, format, width, height, resource_size(res));
stride = drm_sysfb_get_stride_si(dev, si, format, width, height, resource_size(res));