1 /*-
34 #include <dev/clk/clk.h>
35 #include <dev/clk/clk_div.h>
36 #include <dev/clk/clk_fixed.h>
37 #include <dev/clk/clk_mux.h>
50  * This is a read-only divisor table node.
54  * It likely should just live in the extres/clk code.
66 qcom_clk_ro_div_recalc(struct clknode *clk, uint64_t *freq)  in qcom_clk_ro_div_recalc()  argument
69 	uint32_t reg, idx, div = 1;  in qcom_clk_ro_div_recalc()  local
72 	sc = clknode_get_softc(clk);  in qcom_clk_ro_div_recalc()
79 	CLKDEV_DEVICE_LOCK(clknode_get_device(sc->clknode));  in qcom_clk_ro_div_recalc()
80 	CLKDEV_READ_4(clknode_get_device(sc->clknode), sc->offset, &reg);  in qcom_clk_ro_div_recalc()
81 	CLKDEV_DEVICE_UNLOCK(clknode_get_device(sc->clknode));  in qcom_clk_ro_div_recalc()
83 	idx = (reg >> sc->shift) & ((1U << sc->width) - 1);  in qcom_clk_ro_div_recalc()
85 	for (i = 0; (sc->div_tbl[i].div != 0); i++) {  in qcom_clk_ro_div_recalc()
86 		if (idx == sc->div_tbl[i].val) {  in qcom_clk_ro_div_recalc()
87 			div = sc->div_tbl[i].div;  in qcom_clk_ro_div_recalc()
92 	DPRINTF(clknode_get_device(sc->clknode),  in qcom_clk_ro_div_recalc()
93 	    "%s: freq=%llu, idx=%u, div=%u, out_freq=%llu\n",  in qcom_clk_ro_div_recalc()
97 	    div,  in qcom_clk_ro_div_recalc()
98 	    *freq / div);  in qcom_clk_ro_div_recalc()
100 	*freq = *freq / div;  in qcom_clk_ro_div_recalc()
105 qcom_clk_ro_div_init(struct clknode *clk, device_t dev)  in qcom_clk_ro_div_init()  argument
112 	clknode_init_parent_idx(clk, 0);  in qcom_clk_ro_div_init()
132 	struct clknode *clk;  in qcom_clk_ro_div_register()  local
135 	clk = clknode_create(clkdom, &qcom_clk_ro_div_class,  in qcom_clk_ro_div_register()
136 	    &clkdef->clkdef);  in qcom_clk_ro_div_register()
137 	if (clk == NULL)  in qcom_clk_ro_div_register()
140 	sc = clknode_get_softc(clk);  in qcom_clk_ro_div_register()
141 	sc->clknode = clk;  in qcom_clk_ro_div_register()
142 	sc->offset = clkdef->offset;  in qcom_clk_ro_div_register()
143 	sc->shift = clkdef->shift;  in qcom_clk_ro_div_register()
144 	sc->width = clkdef->width;  in qcom_clk_ro_div_register()
145 	sc->div_tbl = clkdef->div_tbl;  in qcom_clk_ro_div_register()
147 	clknode_register(clkdom, clk);  in qcom_clk_ro_div_register()