23 #include "sclk-div.h"
31 static int sclk_div_maxval(struct meson_sclk_div_data *sclk)  in sclk_div_maxval()  argument
33 	return (1 << sclk->div.width) - 1;  in sclk_div_maxval()
36 static int sclk_div_maxdiv(struct meson_sclk_div_data *sclk)  in sclk_div_maxdiv()  argument
38 	return sclk_div_maxval(sclk) + 1;  in sclk_div_maxdiv()
51 			    struct meson_sclk_div_data *sclk)  in sclk_div_bestdiv()  argument
61 	maxdiv = sclk_div_maxdiv(sclk);  in sclk_div_bestdiv()
92 		bestdiv = sclk_div_maxdiv(sclk);  in sclk_div_bestdiv()
103 	struct meson_sclk_div_data *sclk = meson_sclk_div_data(clk);  in sclk_div_round_rate()  local
106 	div = sclk_div_bestdiv(hw, rate, prate, sclk);  in sclk_div_round_rate()
112 			     struct meson_sclk_div_data *sclk)  in sclk_apply_ratio()  argument
114 	unsigned int hi = DIV_ROUND_CLOSEST(sclk->cached_div *  in sclk_apply_ratio()
115 					    sclk->cached_duty.num,  in sclk_apply_ratio()
116 					    sclk->cached_duty.den);  in sclk_apply_ratio()
121 	meson_parm_write(clk->map, &sclk->hi, hi);  in sclk_apply_ratio()
128 	struct meson_sclk_div_data *sclk = meson_sclk_div_data(clk);  in sclk_div_set_duty_cycle()  local
130 	if (MESON_PARM_APPLICABLE(&sclk->hi)) {  in sclk_div_set_duty_cycle()
131 		memcpy(&sclk->cached_duty, duty, sizeof(*duty));  in sclk_div_set_duty_cycle()
132 		sclk_apply_ratio(clk, sclk);  in sclk_div_set_duty_cycle()
142 	struct meson_sclk_div_data *sclk = meson_sclk_div_data(clk);  in sclk_div_get_duty_cycle()  local
145 	if (!MESON_PARM_APPLICABLE(&sclk->hi)) {  in sclk_div_get_duty_cycle()
151 	hi = meson_parm_read(clk->map, &sclk->hi);  in sclk_div_get_duty_cycle()
153 	duty->den = sclk->cached_div;  in sclk_div_get_duty_cycle()
158 			       struct meson_sclk_div_data *sclk)  in sclk_apply_divider()  argument
160 	if (MESON_PARM_APPLICABLE(&sclk->hi))  in sclk_apply_divider()
161 		sclk_apply_ratio(clk, sclk);  in sclk_apply_divider()
163 	meson_parm_write(clk->map, &sclk->div, sclk->cached_div - 1);  in sclk_apply_divider()
170 	struct meson_sclk_div_data *sclk = meson_sclk_div_data(clk);  in sclk_div_set_rate()  local
171 	unsigned long maxdiv = sclk_div_maxdiv(sclk);  in sclk_div_set_rate()
173 	sclk->cached_div = sclk_div_getdiv(hw, rate, prate, maxdiv);  in sclk_div_set_rate()
176 		sclk_apply_divider(clk, sclk);  in sclk_div_set_rate()
185 	struct meson_sclk_div_data *sclk = meson_sclk_div_data(clk);  in sclk_div_recalc_rate()  local
187 	return DIV_ROUND_UP_ULL((u64)prate, sclk->cached_div);  in sclk_div_recalc_rate()
193 	struct meson_sclk_div_data *sclk = meson_sclk_div_data(clk);  in sclk_div_enable()  local
195 	sclk_apply_divider(clk, sclk);  in sclk_div_enable()
203 	struct meson_sclk_div_data *sclk = meson_sclk_div_data(clk);  in sclk_div_disable()  local
205 	meson_parm_write(clk->map, &sclk->div, 0);  in sclk_div_disable()
211 	struct meson_sclk_div_data *sclk = meson_sclk_div_data(clk);  in sclk_div_is_enabled()  local
213 	if (meson_parm_read(clk->map, &sclk->div))  in sclk_div_is_enabled()
222 	struct meson_sclk_div_data *sclk = meson_sclk_div_data(clk);  in sclk_div_init()  local
225 	val = meson_parm_read(clk->map, &sclk->div);  in sclk_div_init()
229 		sclk->cached_div = sclk_div_maxdiv(sclk);  in sclk_div_init()
231 		sclk->cached_div = val + 1;  in sclk_div_init()
233 	sclk_div_get_duty_cycle(hw, &sclk->cached_duty);  in sclk_div_init()