243 	int div;  in jz_clk_main_round_rate()  local
245 	div = parent_rate / rate;  in jz_clk_main_round_rate()
246 	if (div > 32)  in jz_clk_main_round_rate()
248 	else if (div < 1)  in jz_clk_main_round_rate()
251 	div &= (0x3 << (ffs(div) - 1));  in jz_clk_main_round_rate()
253 	return parent_rate / div;  in jz_clk_main_round_rate()
259 	uint32_t div;  in jz_clk_main_get_rate()  local
261 	div = jz_clk_reg_read(JZ_REG_CLOCK_CTRL);  in jz_clk_main_get_rate()
263 	div >>= mclk->div_offset;  in jz_clk_main_get_rate()
264 	div &= 0xf;  in jz_clk_main_get_rate()
266 	if (div >= ARRAY_SIZE(jz_clk_main_divs))  in jz_clk_main_get_rate()
267 		div = ARRAY_SIZE(jz_clk_main_divs) - 1;  in jz_clk_main_get_rate()
269 	return jz_clk_pll_get_rate(clk->parent) / jz_clk_main_divs[div];  in jz_clk_main_get_rate()
276 	int div;  in jz_clk_main_set_rate()  local
281 	div = parent_rate / rate;  in jz_clk_main_set_rate()
283 	i = (ffs(div) - 1) << 1;  in jz_clk_main_set_rate()
284 	if (i > 0 && !(div & BIT(i-1)))  in jz_clk_main_set_rate()
449 	int div;  in jz_clk_udc_set_rate()  local
454 	div = clk_get_rate(clk->parent) / rate - 1;  in jz_clk_udc_set_rate()
456 	if (div < 0)  in jz_clk_udc_set_rate()
457 		div = 0;  in jz_clk_udc_set_rate()
458 	else if (div > 63)  in jz_clk_udc_set_rate()
459 		div = 63;  in jz_clk_udc_set_rate()
461 	jz_clk_reg_write_mask(JZ_REG_CLOCK_CTRL, div << JZ_CLOCK_CTRL_UDIV_OFFSET,  in jz_clk_udc_set_rate()
468 	int div;  in jz_clk_udc_get_rate()  local
473 	div = (jz_clk_reg_read(JZ_REG_CLOCK_CTRL) & JZ_CLOCK_CTRL_UDIV_MASK);  in jz_clk_udc_get_rate()
474 	div >>= JZ_CLOCK_CTRL_UDIV_OFFSET;  in jz_clk_udc_get_rate()
475 	div += 1;  in jz_clk_udc_get_rate()
477 	return clk_get_rate(clk->parent) / div;  in jz_clk_udc_get_rate()
483 	int div;  in jz_clk_divided_get_rate()  local
488 	div = (jz_clk_reg_read(dclk->reg) & dclk->mask) + 1;  in jz_clk_divided_get_rate()
490 	return clk_get_rate(clk->parent) / div;  in jz_clk_divided_get_rate()
496 	int div;  in jz_clk_divided_set_rate()  local
501 	div = clk_get_rate(clk->parent) / rate - 1;  in jz_clk_divided_set_rate()
503 	if (div < 0)  in jz_clk_divided_set_rate()
504 		div = 0;  in jz_clk_divided_set_rate()
505 	else if (div > dclk->mask)  in jz_clk_divided_set_rate()
506 		div = dclk->mask;  in jz_clk_divided_set_rate()
508 	jz_clk_reg_write_mask(dclk->reg, div, dclk->mask);  in jz_clk_divided_set_rate()
515 	int div;  in jz_clk_ldclk_round_rate()  local
521 	div = parent_rate / rate;  in jz_clk_ldclk_round_rate()
522 	if (div < 1)  in jz_clk_ldclk_round_rate()
523 		div = 1;  in jz_clk_ldclk_round_rate()
524 	else if (div > 32)  in jz_clk_ldclk_round_rate()
525 		div = 32;  in jz_clk_ldclk_round_rate()
527 	return parent_rate / div;  in jz_clk_ldclk_round_rate()
532 	int div;  in jz_clk_ldclk_set_rate()  local
537 	div = jz_clk_pll_half_get_rate(clk->parent) / rate - 1;  in jz_clk_ldclk_set_rate()
538 	if (div < 0)  in jz_clk_ldclk_set_rate()
539 		div = 0;  in jz_clk_ldclk_set_rate()
540 	else if (div > 31)  in jz_clk_ldclk_set_rate()
541 		div = 31;  in jz_clk_ldclk_set_rate()
543 	jz_clk_reg_write_mask(JZ_REG_CLOCK_CTRL, div << JZ_CLOCK_CTRL_LDIV_OFFSET,  in jz_clk_ldclk_set_rate()
551 	int div;  in jz_clk_ldclk_get_rate()  local
553 	div = jz_clk_reg_read(JZ_REG_CLOCK_CTRL) & JZ_CLOCK_CTRL_LDIV_MASK;  in jz_clk_ldclk_get_rate()
554 	div >>= JZ_CLOCK_CTRL_LDIV_OFFSET;  in jz_clk_ldclk_get_rate()
556 	return jz_clk_pll_half_get_rate(clk->parent) / (div + 1);  in jz_clk_ldclk_get_rate()