1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (C) 2014 Google, Inc.
6 #ifndef __PISTACHIO_CLK_H
7 #define __PISTACHIO_CLK_H
9 #include <linux/clk-provider.h>
11 struct pistachio_gate {
19 #define GATE(_id, _name, _pname, _reg, _shift) \
28 struct pistachio_mux {
32 unsigned int num_parents;
37 #define PNAME(x) static const char *x[] __initconst
39 #define MUX(_id, _name, _pnames, _reg, _shift) \
46 .num_parents = ARRAY_SIZE(_pnames) \
50 struct pistachio_div {
54 unsigned int div_flags;
59 #define DIV(_id, _name, _pname, _reg, _width) \
69 #define DIV_F(_id, _name, _pname, _reg, _width, _div_flags) \
74 .div_flags = _div_flags, \
79 struct pistachio_fixed_factor {
86 #define FIXED_FACTOR(_id, _name, _pname, _div) \
94 struct pistachio_pll_rate_table {
95 unsigned long long fref;
96 unsigned long long fout;
97 unsigned long long refdiv;
98 unsigned long long fbdiv;
99 unsigned long long postdiv1;
100 unsigned long long postdiv2;
101 unsigned long long frac;
104 enum pistachio_pll_type {
109 struct pistachio_pll {
111 unsigned long reg_base;
112 enum pistachio_pll_type type;
113 struct pistachio_pll_rate_table *rates;
114 unsigned int nr_rates;
119 #define PLL(_id, _name, _pname, _type, _reg, _rates) \
125 .nr_rates = ARRAY_SIZE(_rates), \
130 #define PLL_FIXED(_id, _name, _pname, _type, _reg) \
141 struct pistachio_clk_provider {
142 struct device_node *node;
144 struct clk_onecell_data clk_data;
147 extern struct pistachio_clk_provider *
148 pistachio_clk_alloc_provider(struct device_node *node, unsigned int num_clks);
149 extern void pistachio_clk_register_provider(struct pistachio_clk_provider *p);
151 extern void pistachio_clk_register_gate(struct pistachio_clk_provider *p,
152 struct pistachio_gate *gate,
154 extern void pistachio_clk_register_mux(struct pistachio_clk_provider *p,
155 struct pistachio_mux *mux,
157 extern void pistachio_clk_register_div(struct pistachio_clk_provider *p,
158 struct pistachio_div *div,
161 pistachio_clk_register_fixed_factor(struct pistachio_clk_provider *p,
162 struct pistachio_fixed_factor *ff,
164 extern void pistachio_clk_register_pll(struct pistachio_clk_provider *p,
165 struct pistachio_pll *pll,
168 extern void pistachio_clk_force_enable(struct pistachio_clk_provider *p,
169 unsigned int *clk_ids, unsigned int num);