ref_pix
clks[ref_pix] = mxs_clk_ref("ref_pix", "pll", FRAC, 2);
clks[ref_pix] = mxs_clk_ref("ref_pix", "pll0", FRAC1, 0);
u16 ref_pix, ref_line, n_pix, n_line;
ref_pix = 3 + hs_pix_s;
ref_pix += adjusted_mode->hskew;
reg_write16(priv, REG_REFPIX_MSB, ref_pix);