sunxi_mixer_crtc
struct sunxi_mixer_crtc sc_crtc;
#define to_sunxi_mixer_crtc(x) container_of(x, struct sunxi_mixer_crtc, base)
struct sunxi_mixer_crtc *mixer_crtc = to_sunxi_mixer_crtc(crtc);
struct sunxi_mixer_crtc *mixer_crtc = to_sunxi_mixer_crtc(crtc);