547 	u32 pll_ref;  in r820t_set_pll()  local
559 	pll_ref = priv->cfg->xtal / 1000;  in r820t_set_pll()
568 			pll_ref /= 2;  in r820t_set_pll()
574 			pll_ref /= 2;  in r820t_set_pll()
633 	nint = vco_freq / (2 * pll_ref);  in r820t_set_pll()
634 	vco_fra = vco_freq - 2 * pll_ref * nint;  in r820t_set_pll()
637 	if (vco_fra < pll_ref / 64) {  in r820t_set_pll()
639 	} else if (vco_fra > pll_ref * 127 / 64) {  in r820t_set_pll()
642 	} else if ((vco_fra > pll_ref * 127 / 128) && (vco_fra < pll_ref)) {  in r820t_set_pll()
643 		vco_fra = pll_ref * 127 / 128;  in r820t_set_pll()
644 	} else if ((vco_fra > pll_ref) && (vco_fra < pll_ref * 129 / 128)) {  in r820t_set_pll()
645 		vco_fra = pll_ref * 129 / 128;  in r820t_set_pll()
667 		if (vco_fra > (2 * pll_ref / n_sdm)) {  in r820t_set_pll()
669 			vco_fra = vco_fra - 2 * pll_ref / n_sdm;  in r820t_set_pll()
677 		  freq, pll_ref, refdiv2 ? " / 2" : "", sdm);  in r820t_set_pll()