202 	u64 ratio;  in cs2000_rate_to_ratio()  local
206 	 * ratio = rate_out / rate_in * 2^multiplier  in cs2000_rate_to_ratio()
211 	ratio = (u64)rate_out << multiplier;  in cs2000_rate_to_ratio()
212 	do_div(ratio, rate_in);  in cs2000_rate_to_ratio()
214 	return ratio;  in cs2000_rate_to_ratio()
217 static unsigned long cs2000_ratio_to_rate(u32 ratio, u32 rate_in, bool lf_ratio)  in cs2000_ratio_to_rate()  argument
223 	 * ratio = rate_out / rate_in * 2^multiplier  in cs2000_ratio_to_rate()
229 	rate_out = (u64)ratio * rate_in;  in cs2000_ratio_to_rate()
301 	u32 ratio;  in cs2000_recalc_rate()  local
303 	ratio = cs2000_ratio_get(priv, ch);  in cs2000_recalc_rate()
305 	return cs2000_ratio_to_rate(ratio, parent_rate, priv->lf_ratio);  in cs2000_recalc_rate()
312 	u32 ratio;  in cs2000_round_rate()  local
314 	ratio = cs2000_rate_to_ratio(*parent_rate, rate, priv->lf_ratio);  in cs2000_round_rate()
316 	return cs2000_ratio_to_rate(ratio, *parent_rate, priv->lf_ratio);  in cs2000_round_rate()
327 	 * | utilized whenever the desired ratio is less than 4096 since  in cs2000_select_ratio_mode()
497 		 * otherwise .set_rate which setup ratio  in cs2000_clk_register()