dss_set_fck_rate
r = dss_set_fck_rate(dpi->dss, ctx.fck);
r = dss_set_fck_rate(dss, fck);
int dss_set_fck_rate(struct dss_device *dss, unsigned long rate);
r = dss_set_fck_rate(sdi->dss, fck);
r = dss_set_fck_rate(ctx.fck);
r = dss_set_fck_rate(fck);
int dss_set_fck_rate(unsigned long rate);
r = dss_set_fck_rate(fck);