omap_encoder
struct omap_encoder *omap_encoder;
omap_encoder = kzalloc_obj(*omap_encoder);
if (!omap_encoder)
omap_encoder->output = output;
encoder = &omap_encoder->base;
#define to_omap_encoder(x) container_of(x, struct omap_encoder, base)
struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
kfree(omap_encoder);
struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
struct omap_dss_device *output = omap_encoder->output;