This source file includes following definitions.
- mmp_clk_init
- mmp_register_fixed_rate_clks
- mmp_register_fixed_factor_clks
- mmp_register_general_gate_clks
- mmp_register_gate_clks
- mmp_register_mux_clks
- mmp_register_div_clks
- mmp_clk_add
1
2 #include <linux/io.h>
3 #include <linux/clk-provider.h>
4 #include <linux/slab.h>
5 #include <linux/of.h>
6 #include <linux/of_address.h>
7
8 #include "clk.h"
9
10 void mmp_clk_init(struct device_node *np, struct mmp_clk_unit *unit,
11 int nr_clks)
12 {
13 struct clk **clk_table;
14
15 clk_table = kcalloc(nr_clks, sizeof(struct clk *), GFP_KERNEL);
16 if (!clk_table)
17 return;
18
19 unit->clk_table = clk_table;
20 unit->nr_clks = nr_clks;
21 unit->clk_data.clks = clk_table;
22 unit->clk_data.clk_num = nr_clks;
23 of_clk_add_provider(np, of_clk_src_onecell_get, &unit->clk_data);
24 }
25
26 void mmp_register_fixed_rate_clks(struct mmp_clk_unit *unit,
27 struct mmp_param_fixed_rate_clk *clks,
28 int size)
29 {
30 int i;
31 struct clk *clk;
32
33 for (i = 0; i < size; i++) {
34 clk = clk_register_fixed_rate(NULL, clks[i].name,
35 clks[i].parent_name,
36 clks[i].flags,
37 clks[i].fixed_rate);
38 if (IS_ERR(clk)) {
39 pr_err("%s: failed to register clock %s\n",
40 __func__, clks[i].name);
41 continue;
42 }
43 if (clks[i].id)
44 unit->clk_table[clks[i].id] = clk;
45 }
46 }
47
48 void mmp_register_fixed_factor_clks(struct mmp_clk_unit *unit,
49 struct mmp_param_fixed_factor_clk *clks,
50 int size)
51 {
52 struct clk *clk;
53 int i;
54
55 for (i = 0; i < size; i++) {
56 clk = clk_register_fixed_factor(NULL, clks[i].name,
57 clks[i].parent_name,
58 clks[i].flags, clks[i].mult,
59 clks[i].div);
60 if (IS_ERR(clk)) {
61 pr_err("%s: failed to register clock %s\n",
62 __func__, clks[i].name);
63 continue;
64 }
65 if (clks[i].id)
66 unit->clk_table[clks[i].id] = clk;
67 }
68 }
69
70 void mmp_register_general_gate_clks(struct mmp_clk_unit *unit,
71 struct mmp_param_general_gate_clk *clks,
72 void __iomem *base, int size)
73 {
74 struct clk *clk;
75 int i;
76
77 for (i = 0; i < size; i++) {
78 clk = clk_register_gate(NULL, clks[i].name,
79 clks[i].parent_name,
80 clks[i].flags,
81 base + clks[i].offset,
82 clks[i].bit_idx,
83 clks[i].gate_flags,
84 clks[i].lock);
85
86 if (IS_ERR(clk)) {
87 pr_err("%s: failed to register clock %s\n",
88 __func__, clks[i].name);
89 continue;
90 }
91 if (clks[i].id)
92 unit->clk_table[clks[i].id] = clk;
93 }
94 }
95
96 void mmp_register_gate_clks(struct mmp_clk_unit *unit,
97 struct mmp_param_gate_clk *clks,
98 void __iomem *base, int size)
99 {
100 struct clk *clk;
101 int i;
102
103 for (i = 0; i < size; i++) {
104 clk = mmp_clk_register_gate(NULL, clks[i].name,
105 clks[i].parent_name,
106 clks[i].flags,
107 base + clks[i].offset,
108 clks[i].mask,
109 clks[i].val_enable,
110 clks[i].val_disable,
111 clks[i].gate_flags,
112 clks[i].lock);
113
114 if (IS_ERR(clk)) {
115 pr_err("%s: failed to register clock %s\n",
116 __func__, clks[i].name);
117 continue;
118 }
119 if (clks[i].id)
120 unit->clk_table[clks[i].id] = clk;
121 }
122 }
123
124 void mmp_register_mux_clks(struct mmp_clk_unit *unit,
125 struct mmp_param_mux_clk *clks,
126 void __iomem *base, int size)
127 {
128 struct clk *clk;
129 int i;
130
131 for (i = 0; i < size; i++) {
132 clk = clk_register_mux(NULL, clks[i].name,
133 clks[i].parent_name,
134 clks[i].num_parents,
135 clks[i].flags,
136 base + clks[i].offset,
137 clks[i].shift,
138 clks[i].width,
139 clks[i].mux_flags,
140 clks[i].lock);
141
142 if (IS_ERR(clk)) {
143 pr_err("%s: failed to register clock %s\n",
144 __func__, clks[i].name);
145 continue;
146 }
147 if (clks[i].id)
148 unit->clk_table[clks[i].id] = clk;
149 }
150 }
151
152 void mmp_register_div_clks(struct mmp_clk_unit *unit,
153 struct mmp_param_div_clk *clks,
154 void __iomem *base, int size)
155 {
156 struct clk *clk;
157 int i;
158
159 for (i = 0; i < size; i++) {
160 clk = clk_register_divider(NULL, clks[i].name,
161 clks[i].parent_name,
162 clks[i].flags,
163 base + clks[i].offset,
164 clks[i].shift,
165 clks[i].width,
166 clks[i].div_flags,
167 clks[i].lock);
168
169 if (IS_ERR(clk)) {
170 pr_err("%s: failed to register clock %s\n",
171 __func__, clks[i].name);
172 continue;
173 }
174 if (clks[i].id)
175 unit->clk_table[clks[i].id] = clk;
176 }
177 }
178
179 void mmp_clk_add(struct mmp_clk_unit *unit, unsigned int id,
180 struct clk *clk)
181 {
182 if (IS_ERR_OR_NULL(clk)) {
183 pr_err("CLK %d has invalid pointer %p\n", id, clk);
184 return;
185 }
186 if (id >= unit->nr_clks) {
187 pr_err("CLK %d is invalid\n", id);
188 return;
189 }
190
191 unit->clk_table[id] = clk;
192 }