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rk30:sdk: add arm logic table analysis function in dvfs.c

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chenxing
2012-04-25 16:38:48 +08:00
parent dc8a305138
commit e53c848a80
2 changed files with 26 additions and 0 deletions
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21
arch/arm/mach-rk30/dvfs.c
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@@ -257,6 +257,27 @@ int dvfs_set_depend_table(struct clk *clk, char *vd_name, struct cpufreq_frequen
return 0;
}
int dvfs_set_arm_logic_volt(struct dvfs_arm_table *dvfs_cpu_logic_table,
struct cpufreq_frequency_table *cpu_dvfs_table,
struct cpufreq_frequency_table *dep_cpu2core_table)
{
int i = 0;
for (i = 0; dvfs_cpu_logic_table[i].frequency != CPUFREQ_TABLE_END; i++) {
cpu_dvfs_table[i].frequency = dvfs_cpu_logic_table[i].frequency;
cpu_dvfs_table[i].index = dvfs_cpu_logic_table[i].cpu_volt;
dep_cpu2core_table[i].frequency = dvfs_cpu_logic_table[i].frequency;
dep_cpu2core_table[i].index = dvfs_cpu_logic_table[i].logic_volt;
}
cpu_dvfs_table[i].frequency = CPUFREQ_TABLE_END;
dep_cpu2core_table[i].frequency = CPUFREQ_TABLE_END;
dvfs_set_freq_volt_table(clk_get(NULL, "cpu"), cpu_dvfs_table);
dvfs_set_depend_table(clk_get(NULL, "cpu"), "vd_core", dep_cpu2core_table);
return 0;
}
int clk_enable_dvfs(struct clk *clk)
{
struct regulator *regulator;

5
arch/arm/mach-rk30/include/mach/dvfs.h
View File

@@ -125,6 +125,7 @@ struct clk_node {
struct cpufreq_frequency_table *dvfs_table;
clk_dvfs_target_callback clk_dvfs_target;
};
struct dvfs_arm_table {
unsigned int frequency; /* kHz - doesn't need to be in ascending
* order */
@@ -132,6 +133,7 @@ struct dvfs_arm_table {
unsigned int logic_volt;
};
#ifdef CONFIG_DVFS
int rk30_dvfs_init(void);
int is_support_dvfs(struct clk_node *dvfs_info);
@@ -142,6 +144,7 @@ void dvfs_clk_register_set_rate_callback(struct clk *clk, clk_dvfs_target_callba
struct cpufreq_frequency_table *dvfs_get_freq_volt_table(struct clk *clk);
int dvfs_set_freq_volt_table(struct clk *clk, struct cpufreq_frequency_table *table);
int dvfs_set_depend_table(struct clk *clk, char *vd_name, struct cpufreq_frequency_table *table);
int dvfs_set_arm_logic_volt(struct dvfs_arm_table *dvfs_cpu_logic_table, struct cpufreq_frequency_table *cpu_dvfs_table, struct cpufreq_frequency_table *dep_cpu2core_table);
#else
static inline int rk30_dvfs_init(void) { return 0; }
static inline int is_support_dvfs(struct clk_node *dvfs_info) { return 0; }
@@ -152,6 +155,8 @@ static inline void dvfs_clk_register_set_rate_callback(struct clk *clk, clk_dvfs
static inline struct cpufreq_frequency_table *dvfs_get_freq_volt_table(struct clk *clk) { return NULL; }
static inline int dvfs_set_freq_volt_table(struct clk *clk, struct cpufreq_frequency_table *table) { return 0; }
static inline int dvfs_set_depend_table(struct clk *clk, char *vd_name, struct cpufreq_frequency_table *table) {return 0;}
int dvfs_set_arm_logic_volt(struct dvfs_arm_table *dvfs_cpu_logic_table, struct cpufreq_frequency_table *cpu_dvfs_table, struct cpufreq_frequency_table *dep_cpu2core_table){ return 0; }
#endif
#endif