159 	unsigned int prescale;  in ingenic_tcu_recalc_rate()  local
162 	ret = regmap_read(tcu_clk->tcu->map, info->tcsr_reg, &prescale);  in ingenic_tcu_recalc_rate()
165 	prescale = (prescale & TCU_TCSR_PRESCALE_MASK) >> TCU_TCSR_PRESCALE_LSB;  in ingenic_tcu_recalc_rate()
167 	return parent_rate >> (prescale * 2);  in ingenic_tcu_recalc_rate()
172 	u8 prescale;  in ingenic_tcu_get_prescale()  local
174 	for (prescale = 0; prescale < 5; prescale++)  in ingenic_tcu_get_prescale()
175 		if ((rate >> (prescale * 2)) <= req_rate)  in ingenic_tcu_get_prescale()
176 			return prescale;  in ingenic_tcu_get_prescale()
185 	u8 prescale;  in ingenic_tcu_determine_rate()  local
192 	prescale = ingenic_tcu_get_prescale(rate, req->rate);  in ingenic_tcu_determine_rate()
194 	req->rate = rate >> (prescale * 2);  in ingenic_tcu_determine_rate()
203 	u8 prescale = ingenic_tcu_get_prescale(parent_rate, req_rate);  in ingenic_tcu_set_rate()  local
211 				 prescale << TCU_TCSR_PRESCALE_LSB);  in ingenic_tcu_set_rate()