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path: root/drivers/sh/clk/cpg.c
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Diffstat (limited to 'drivers/sh/clk/cpg.c')
-rw-r--r--drivers/sh/clk/cpg.c46
1 files changed, 35 insertions, 11 deletions
diff --git a/drivers/sh/clk/cpg.c b/drivers/sh/clk/cpg.c
index f0d015dd0fef..9dea32907795 100644
--- a/drivers/sh/clk/cpg.c
+++ b/drivers/sh/clk/cpg.c
@@ -71,6 +71,22 @@ static long sh_clk_div_round_rate(struct clk *clk, unsigned long rate)
71 return clk_rate_table_round(clk, clk->freq_table, rate); 71 return clk_rate_table_round(clk, clk->freq_table, rate);
72} 72}
73 73
74/*
75 * Div/mult table lookup helpers
76 */
77static inline struct clk_div_table *clk_to_div_table(struct clk *clk)
78{
79 return clk->priv;
80}
81
82static inline struct clk_div_mult_table *clk_to_div_mult_table(struct clk *clk)
83{
84 return clk_to_div_table(clk)->div_mult_table;
85}
86
87/*
88 * div6 support
89 */
74static int sh_clk_div6_divisors[64] = { 90static int sh_clk_div6_divisors[64] = {
75 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 91 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
76 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 92 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32,
@@ -78,14 +94,18 @@ static int sh_clk_div6_divisors[64] = {
78 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64 94 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64
79}; 95};
80 96
81static struct clk_div_mult_table sh_clk_div6_table = { 97static struct clk_div_mult_table div6_div_mult_table = {
82 .divisors = sh_clk_div6_divisors, 98 .divisors = sh_clk_div6_divisors,
83 .nr_divisors = ARRAY_SIZE(sh_clk_div6_divisors), 99 .nr_divisors = ARRAY_SIZE(sh_clk_div6_divisors),
84}; 100};
85 101
102static struct clk_div_table sh_clk_div6_table = {
103 .div_mult_table = &div6_div_mult_table,
104};
105
86static unsigned long sh_clk_div6_recalc(struct clk *clk) 106static unsigned long sh_clk_div6_recalc(struct clk *clk)
87{ 107{
88 struct clk_div_mult_table *table = &sh_clk_div6_table; 108 struct clk_div_mult_table *table = clk_to_div_mult_table(clk);
89 unsigned int idx; 109 unsigned int idx;
90 110
91 clk_rate_table_build(clk, clk->freq_table, table->nr_divisors, 111 clk_rate_table_build(clk, clk->freq_table, table->nr_divisors,
@@ -98,7 +118,7 @@ static unsigned long sh_clk_div6_recalc(struct clk *clk)
98 118
99static int sh_clk_div6_set_parent(struct clk *clk, struct clk *parent) 119static int sh_clk_div6_set_parent(struct clk *clk, struct clk *parent)
100{ 120{
101 struct clk_div_mult_table *table = &sh_clk_div6_table; 121 struct clk_div_mult_table *table = clk_to_div_mult_table(clk);
102 u32 value; 122 u32 value;
103 int ret, i; 123 int ret, i;
104 124
@@ -223,7 +243,8 @@ static int __init sh_clk_div6_register_ops(struct clk *clks, int nr,
223{ 243{
224 struct clk *clkp; 244 struct clk *clkp;
225 void *freq_table; 245 void *freq_table;
226 int nr_divs = sh_clk_div6_table.nr_divisors; 246 struct clk_div_table *table = &sh_clk_div6_table;
247 int nr_divs = table->div_mult_table->nr_divisors;
227 int freq_table_size = sizeof(struct cpufreq_frequency_table); 248 int freq_table_size = sizeof(struct cpufreq_frequency_table);
228 int ret = 0; 249 int ret = 0;
229 int k; 250 int k;
@@ -239,6 +260,7 @@ static int __init sh_clk_div6_register_ops(struct clk *clks, int nr,
239 clkp = clks + k; 260 clkp = clks + k;
240 261
241 clkp->ops = ops; 262 clkp->ops = ops;
263 clkp->priv = table;
242 clkp->freq_table = freq_table + (k * freq_table_size); 264 clkp->freq_table = freq_table + (k * freq_table_size);
243 clkp->freq_table[nr_divs].frequency = CPUFREQ_TABLE_END; 265 clkp->freq_table[nr_divs].frequency = CPUFREQ_TABLE_END;
244 ret = clk_register(clkp); 266 ret = clk_register(clkp);
@@ -262,10 +284,12 @@ int __init sh_clk_div6_reparent_register(struct clk *clks, int nr)
262 &sh_clk_div6_reparent_clk_ops); 284 &sh_clk_div6_reparent_clk_ops);
263} 285}
264 286
287/*
288 * div4 support
289 */
265static unsigned long sh_clk_div4_recalc(struct clk *clk) 290static unsigned long sh_clk_div4_recalc(struct clk *clk)
266{ 291{
267 struct clk_div4_table *d4t = clk->priv; 292 struct clk_div_mult_table *table = clk_to_div_mult_table(clk);
268 struct clk_div_mult_table *table = d4t->div_mult_table;
269 unsigned int idx; 293 unsigned int idx;
270 294
271 clk_rate_table_build(clk, clk->freq_table, table->nr_divisors, 295 clk_rate_table_build(clk, clk->freq_table, table->nr_divisors,
@@ -278,8 +302,7 @@ static unsigned long sh_clk_div4_recalc(struct clk *clk)
278 302
279static int sh_clk_div4_set_parent(struct clk *clk, struct clk *parent) 303static int sh_clk_div4_set_parent(struct clk *clk, struct clk *parent)
280{ 304{
281 struct clk_div4_table *d4t = clk->priv; 305 struct clk_div_mult_table *table = clk_to_div_mult_table(clk);
282 struct clk_div_mult_table *table = d4t->div_mult_table;
283 u32 value; 306 u32 value;
284 int ret; 307 int ret;
285 308
@@ -308,7 +331,7 @@ static int sh_clk_div4_set_parent(struct clk *clk, struct clk *parent)
308 331
309static int sh_clk_div4_set_rate(struct clk *clk, unsigned long rate) 332static int sh_clk_div4_set_rate(struct clk *clk, unsigned long rate)
310{ 333{
311 struct clk_div4_table *d4t = clk->priv; 334 struct clk_div_table *dt = clk_to_div_table(clk);
312 unsigned long value; 335 unsigned long value;
313 int idx = clk_rate_table_find(clk, clk->freq_table, rate); 336 int idx = clk_rate_table_find(clk, clk->freq_table, rate);
314 if (idx < 0) 337 if (idx < 0)
@@ -319,8 +342,9 @@ static int sh_clk_div4_set_rate(struct clk *clk, unsigned long rate)
319 value |= (idx << clk->enable_bit); 342 value |= (idx << clk->enable_bit);
320 sh_clk_write(value, clk); 343 sh_clk_write(value, clk);
321 344
322 if (d4t->kick) 345 /* XXX: Should use a post-change notifier */
323 d4t->kick(clk); 346 if (dt->kick)
347 dt->kick(clk);
324 348
325 return 0; 349 return 0;
326} 350}