Lines Matching +full:parent +full:- +full:clock +full:- +full:frequency

1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
51 static void	pmufreq_identify(driver_t *driver, device_t parent);
82 pmufreq_identify(driver_t *driver, device_t parent)  in pmufreq_identify()  argument
87 	node = ofw_bus_get_node(parent);  in pmufreq_identify()
88 	if (OF_getprop(node, "min-clock-frequency", &min_freq, sizeof(min_freq)) == -1)  in pmufreq_identify()
92 	if (device_find_child(parent, "pmufreq", DEVICE_UNIT_ANY) != NULL)  in pmufreq_identify()
99 	if (BUS_ADD_CHILD(parent, 10, "pmufreq", DEVICE_UNIT_ANY) == NULL)  in pmufreq_identify()
100 		device_printf(parent, "add pmufreq child failed\n");  in pmufreq_identify()
114 	 * A scalable MPC7455 has min-clock-frequency/max-clock-frequency as OFW  in pmufreq_probe()
117 	if (OF_getprop(node, "min-clock-frequency", &min_freq, sizeof(min_freq)) == -1)  in pmufreq_probe()
119 	device_set_desc(dev, "PMU-based frequency scaling");  in pmufreq_probe()
130 	sc->dev = dev;  in pmufreq_attach()
133 	OF_getprop(node, "min-clock-frequency", &sc->minfreq, sizeof(sc->minfreq));  in pmufreq_attach()
134 	OF_getprop(node, "max-clock-frequency", &sc->maxfreq, sizeof(sc->maxfreq));  in pmufreq_attach()
135 	OF_getprop(node, "rounded-clock-frequency", &sc->curfreq, sizeof(sc->curfreq));  in pmufreq_attach()
136 	sc->minfreq /= 1000000;  in pmufreq_attach()
137 	sc->maxfreq /= 1000000;  in pmufreq_attach()
138 	sc->curfreq /= 1000000;  in pmufreq_attach()
158 	sets[0].freq = sc->maxfreq; sets[0].dev = dev;  in pmufreq_settings()
159 	sets[1].freq = sc->minfreq; sets[1].dev = dev;  in pmufreq_settings()
160 	/* Set high latency for CPU frequency changes, it's a tedious process. */  in pmufreq_settings()
179 	if (set->freq == sc->maxfreq)  in pmufreq_set()
186 		sc->curfreq = set->freq;  in pmufreq_set()
200 	set->freq = sc->curfreq;  in pmufreq_get()
201 	set->dev = dev;  in pmufreq_get()