clk/ti/divider.c

26 	for (clkt = table; clkt->div; clkt++)
28 			return clkt->div;
41 		for (clkt = divider->table; clkt->div; clkt++)
72 				   unsigned int div)
76 	for (clkt = table; clkt->div; clkt++)
77 		if (clkt->div == div)
82 static unsigned int _get_val(struct clk_omap_divider *divider, u8 div)
85 		return div;
87 		return __ffs(div);
89 		return  _get_table_val(divider->table, div);
90 	return div - 1;
97 	unsigned int div, val;
102 	div = _get_div(divider, val);
103 	if (!div) {
110 	return DIV_ROUND_UP(parent_rate, div);
120 				unsigned int div)
124 	for (clkt = table; clkt->div; clkt++)
125 		if (clkt->div == div)
130 static bool _is_valid_div(struct clk_omap_divider *divider, unsigned int div)
133 		return is_power_of_2(div);
135 		return _is_valid_table_div(divider->table, div);
144 	int div = DIV_ROUND_UP_ULL((u64)parent_rate, rate);
146 	for (clkt = table; clkt->div; clkt++) {
147 		if (clkt->div == div)
148 			return clkt->div;
149 		else if (clkt->div < div)
152 		if ((clkt->div - div) < (up - div))
153 			up = clkt->div;
229 	int div;
230 	div = ti_clk_divider_bestdiv(hw, rate, prate);
232 	return DIV_ROUND_UP(*prate, div);
239 	unsigned int div, value;
247 	div = DIV_ROUND_UP(parent_rate, rate);
249 	if (div > divider->max)
250 		div = divider->max;
251 	if (div < divider->min)
252 		div = divider->min;
254 	value = _get_val(divider, div);
310 				     struct clk_omap_divider *div)
325 	div->hw.init = &init;
328 	return of_ti_clk_register(node, &div->hw, name);
366 			tmp[valid_div].div = div_table[i];
384 				       struct clk_omap_divider *div)
423 			table[valid_div].div = val;
429 	div->table = table;
444 		if (of_property_read_u32(node, "ti,min-div", &min_div))
447 		if (of_property_read_u32(node, "ti,max-div", &max_div)) {
448 			pr_err("no max-div for %pOFn!\n", node);
453 		for (clkt = divider->table; clkt->div; clkt++) {
454 			val = clkt->div;
470 					  struct clk_omap_divider *div,
476 	ret = ti_clk_get_reg_addr(node, 0, &div->reg);
480 	div->shift = div->reg.bit;
483 		div->latch = val;
485 		div->latch = -EINVAL;
488 	div->flags = 0;
491 		div->flags |= CLK_DIVIDER_ONE_BASED;
494 		div->flags |= CLK_DIVIDER_POWER_OF_TWO;
499 	ret = ti_clk_get_div_table(node, div);
503 	return _populate_divider_min_max(node, div);
507  * of_ti_divider_clk_setup - Setup function for simple div rate clock
516 	struct clk_omap_divider *div;
518 	div = kzalloc(sizeof(*div), GFP_KERNEL);
519 	if (!div)
522 	if (ti_clk_divider_populate(node, div, &flags))
525 	clk = _register_divider(node, flags, div);
533 	kfree(div->table);
534 	kfree(div);
540 	struct clk_omap_divider *div;
543 	div = kzalloc(sizeof(*div), GFP_KERNEL);
544 	if (!div)
547 	if (ti_clk_divider_populate(node, div, &tmp))
550 	if (!ti_clk_add_component(node, &div->hw, CLK_COMPONENT_TYPE_DIVIDER))
554 	kfree(div->table);
555 	kfree(div);