1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
42  * clk = clkin * n / m0 / m1
51 	struct aw_clk_factor	m1;  member
85 	if ((sc->flags & AW_CLK_HAS_GATE) == 0)  in aw_clk_nmm_set_gate()
89 	READ4(clk, sc->offset, &val);  in aw_clk_nmm_set_gate()
91 		val |= (1 << sc->gate_shift);  in aw_clk_nmm_set_gate()
93 		val &= ~(1 << sc->gate_shift);  in aw_clk_nmm_set_gate()
94 	WRITE4(clk, sc->offset, val);  in aw_clk_nmm_set_gate()
105 	uint32_t n, m0, m1;  in aw_clk_nmm_find_best()  local
111 	max_n = aw_clk_factor_get_max(&sc->n);  in aw_clk_nmm_find_best()
112 	min_n = aw_clk_factor_get_min(&sc->n);  in aw_clk_nmm_find_best()
113 	max_m0 = aw_clk_factor_get_max(&sc->m0);  in aw_clk_nmm_find_best()
114 	min_m0 = aw_clk_factor_get_min(&sc->m0);  in aw_clk_nmm_find_best()
115 	max_m1 = aw_clk_factor_get_max(&sc->m1);  in aw_clk_nmm_find_best()
116 	min_m1 = aw_clk_factor_get_min(&sc->m1);  in aw_clk_nmm_find_best()
119 		for (m1 = min_m1; m1 <= max_m1; ) {  in aw_clk_nmm_find_best()
121 				cur = fparent * n / m0 / m1;  in aw_clk_nmm_find_best()
122 				if (abs(*fout - cur) < abs(*fout - best)) {  in aw_clk_nmm_find_best()
126 					*factor_m1 = m1;  in aw_clk_nmm_find_best()
130 			m1++;  in aw_clk_nmm_find_best()
144 	uint32_t val, n, m0, m1, best_n, best_m0, best_m1;  in aw_clk_nmm_set_freq()  local
172 	READ4(clk, sc->offset, &val);  in aw_clk_nmm_set_freq()
174 	n = aw_clk_factor_get_value(&sc->n, best_n);  in aw_clk_nmm_set_freq()
175 	m0 = aw_clk_factor_get_value(&sc->m0, best_m0);  in aw_clk_nmm_set_freq()
176 	m1 = aw_clk_factor_get_value(&sc->m1, best_m1);  in aw_clk_nmm_set_freq()
177 	val &= ~sc->n.mask;  in aw_clk_nmm_set_freq()
178 	val &= ~sc->m0.mask;  in aw_clk_nmm_set_freq()
179 	val &= ~sc->m1.mask;  in aw_clk_nmm_set_freq()
180 	val |= n << sc->n.shift;  in aw_clk_nmm_set_freq()
181 	val |= m0 << sc->m0.shift;  in aw_clk_nmm_set_freq()
182 	val |= m1 << sc->m1.shift;  in aw_clk_nmm_set_freq()
184 	WRITE4(clk, sc->offset, val);  in aw_clk_nmm_set_freq()
187 	if ((sc->flags & AW_CLK_HAS_LOCK) != 0) {  in aw_clk_nmm_set_freq()
188 		for (retry = 0; retry < sc->lock_retries; retry++) {  in aw_clk_nmm_set_freq()
189 			READ4(clk, sc->offset, &val);  in aw_clk_nmm_set_freq()
190 			if ((val & (1 << sc->lock_shift)) != 0)  in aw_clk_nmm_set_freq()
206 	uint32_t val, n, m0, m1;  in aw_clk_nmm_recalc()  local
211 	READ4(clk, sc->offset, &val);  in aw_clk_nmm_recalc()
214 	n = aw_clk_get_factor(val, &sc->n);  in aw_clk_nmm_recalc()
215 	m0 = aw_clk_get_factor(val, &sc->m0);  in aw_clk_nmm_recalc()
216 	m1 = aw_clk_get_factor(val, &sc->m1);  in aw_clk_nmm_recalc()
218 	*freq = *freq * n / m0 / m1;  in aw_clk_nmm_recalc()
241 	clk = clknode_create(clkdom, &aw_nmm_clknode_class, &clkdef->clkdef);  in aw_clk_nmm_register()
247 	sc->offset = clkdef->offset;  in aw_clk_nmm_register()
249 	sc->n.shift = clkdef->n.shift;  in aw_clk_nmm_register()
250 	sc->n.width = clkdef->n.width;  in aw_clk_nmm_register()
251 	sc->n.mask = ((1 << sc->n.width) - 1) << sc->n.shift;  in aw_clk_nmm_register()
252 	sc->n.value = clkdef->n.value;  in aw_clk_nmm_register()
253 	sc->n.flags = clkdef->n.flags;  in aw_clk_nmm_register()
255 	sc->m0.shift = clkdef->m0.shift;  in aw_clk_nmm_register()
256 	sc->m0.width = clkdef->m0.width;  in aw_clk_nmm_register()
257 	sc->m0.mask = ((1 << sc->m0.width) - 1) << sc->m0.shift;  in aw_clk_nmm_register()
258 	sc->m0.value = clkdef->m0.value;  in aw_clk_nmm_register()
259 	sc->m0.flags = clkdef->m0.flags;  in aw_clk_nmm_register()
261 	sc->m1.shift = clkdef->m1.shift;  in aw_clk_nmm_register()
262 	sc->m1.width = clkdef->m1.width;  in aw_clk_nmm_register()
263 	sc->m1.mask = ((1 << sc->m1.width) - 1) << sc->m1.shift;  in aw_clk_nmm_register()
264 	sc->m1.value = clkdef->m1.value;  in aw_clk_nmm_register()
265 	sc->m1.flags = clkdef->m1.flags;  in aw_clk_nmm_register()
267 	sc->gate_shift = clkdef->gate_shift;  in aw_clk_nmm_register()
269 	sc->lock_shift = clkdef->lock_shift;  in aw_clk_nmm_register()
270 	sc->lock_retries = clkdef->lock_retries;  in aw_clk_nmm_register()
272 	sc->flags = clkdef->flags;  in aw_clk_nmm_register()