2  * TI Divider Clock
40 static void _setup_mask(struct clk_omap_divider *divider)  in _setup_mask()  argument
46 	if (divider->table) {  in _setup_mask()
49 		for (clkt = divider->table; clkt->div; clkt++)  in _setup_mask()
53 		max_val = divider->max;  in _setup_mask()
55 		if (!(divider->flags & CLK_DIVIDER_ONE_BASED) &&  in _setup_mask()
56 		    !(divider->flags & CLK_DIVIDER_POWER_OF_TWO))  in _setup_mask()
60 	if (divider->flags & CLK_DIVIDER_POWER_OF_TWO)  in _setup_mask()
65 	divider->mask = (1 << fls(mask)) - 1;  in _setup_mask()
68 static unsigned int _get_div(struct clk_omap_divider *divider, unsigned int val)  in _get_div()  argument
70 	if (divider->flags & CLK_DIVIDER_ONE_BASED)  in _get_div()
72 	if (divider->flags & CLK_DIVIDER_POWER_OF_TWO)  in _get_div()
74 	if (divider->table)  in _get_div()
75 		return _get_table_div(divider->table, val);  in _get_div()
90 static unsigned int _get_val(struct clk_omap_divider *divider, u8 div)  in _get_val()  argument
92 	if (divider->flags & CLK_DIVIDER_ONE_BASED)  in _get_val()
94 	if (divider->flags & CLK_DIVIDER_POWER_OF_TWO)  in _get_val()
96 	if (divider->table)  in _get_val()
97 		return  _get_table_val(divider->table, div);  in _get_val()
104 	struct clk_omap_divider *divider = to_clk_omap_divider(hw);  in ti_clk_divider_recalc_rate()  local
107 	val = ti_clk_ll_ops->clk_readl(&divider->reg) >> divider->shift;  in ti_clk_divider_recalc_rate()
108 	val &= divider->mask;  in ti_clk_divider_recalc_rate()
110 	div = _get_div(divider, val);  in ti_clk_divider_recalc_rate()
112 		WARN(!(divider->flags & CLK_DIVIDER_ALLOW_ZERO),  in ti_clk_divider_recalc_rate()
138 static bool _is_valid_div(struct clk_omap_divider *divider, unsigned int div)  in _is_valid_div()  argument
140 	if (divider->flags & CLK_DIVIDER_POWER_OF_TWO)  in _is_valid_div()
142 	if (divider->table)  in _is_valid_div()
143 		return _is_valid_table_div(divider->table, div);  in _is_valid_div()
179 	struct clk_omap_divider *divider = to_clk_omap_divider(hw);  in ti_clk_divider_bestdiv()  local
187 	maxdiv = divider->max;  in ti_clk_divider_bestdiv()
191 		bestdiv = _div_round(divider->table, parent_rate, rate);  in ti_clk_divider_bestdiv()
198 	 * The maximum divider we can use without overflowing  in ti_clk_divider_bestdiv()
204 		if (!_is_valid_div(divider, i))  in ti_clk_divider_bestdiv()
210 			 * parent rate, so return the divider immediately.  in ti_clk_divider_bestdiv()
226 		bestdiv = divider->max;  in ti_clk_divider_bestdiv()
246 	struct clk_omap_divider *divider;  in ti_clk_divider_set_rate()  local
253 	divider = to_clk_omap_divider(hw);  in ti_clk_divider_set_rate()
257 	if (div > divider->max)  in ti_clk_divider_set_rate()
258 		div = divider->max;  in ti_clk_divider_set_rate()
259 	if (div < divider->min)  in ti_clk_divider_set_rate()
260 		div = divider->min;  in ti_clk_divider_set_rate()
262 	value = _get_val(divider, div);  in ti_clk_divider_set_rate()
264 	val = ti_clk_ll_ops->clk_readl(&divider->reg);  in ti_clk_divider_set_rate()
265 	val &= ~(divider->mask << divider->shift);  in ti_clk_divider_set_rate()
266 	val |= value << divider->shift;  in ti_clk_divider_set_rate()
267 	ti_clk_ll_ops->clk_writel(val, &divider->reg);  in ti_clk_divider_set_rate()
269 	ti_clk_latch(&divider->reg, divider->latch);  in ti_clk_divider_set_rate()
275  * clk_divider_save_context - Save the divider value
278  * Save the divider value
282 	struct clk_omap_divider *divider = to_clk_omap_divider(hw);  in clk_divider_save_context()  local
285 	val = ti_clk_ll_ops->clk_readl(&divider->reg) >> divider->shift;  in clk_divider_save_context()
286 	divider->context = val & divider->mask;  in clk_divider_save_context()
292  * clk_divider_restore_context - restore the saved the divider value
295  * Restore the saved the divider value
299 	struct clk_omap_divider *divider = to_clk_omap_divider(hw);  in clk_divider_restore_context()  local
302 	val = ti_clk_ll_ops->clk_readl(&divider->reg);  in clk_divider_restore_context()
303 	val &= ~(divider->mask << divider->shift);  in clk_divider_restore_context()
304 	val |= divider->context << divider->shift;  in clk_divider_restore_context()
305 	ti_clk_ll_ops->clk_writel(val, &divider->reg);  in clk_divider_restore_context()
344 			      u8 flags, struct clk_omap_divider *divider)  in ti_clk_parse_divider_data()  argument
352 		divider->min = 1;  in ti_clk_parse_divider_data()
353 		divider->max = max_div;  in ti_clk_parse_divider_data()
354 		_setup_mask(divider);  in ti_clk_parse_divider_data()
387 	divider->min = min_div;  in ti_clk_parse_divider_data()
388 	divider->max = max_div;  in ti_clk_parse_divider_data()
389 	divider->table = tmp;  in ti_clk_parse_divider_data()
390 	_setup_mask(divider);  in ti_clk_parse_divider_data()
414 	/* Determine required size for divider table */  in ti_clk_get_div_table()
447 				     struct clk_omap_divider *divider)  in _populate_divider_min_max()  argument
454 	if (!divider->table) {  in _populate_divider_min_max()
455 		/* Clk divider table not provided, determine min/max divs */  in _populate_divider_min_max()
465 		for (clkt = divider->table; clkt->div; clkt++) {  in _populate_divider_min_max()
474 	divider->min = min_div;  in _populate_divider_min_max()
475 	divider->max = max_div;  in _populate_divider_min_max()
476 	_setup_mask(divider);  in _populate_divider_min_max()
525  * Sets up a basic divider clock.
551 CLK_OF_DECLARE(divider_clk, "ti,divider-clock", of_ti_divider_clk_setup);
572 CLK_OF_DECLARE(ti_composite_divider_clk, "ti,composite-divider-clock",