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rk3026 pm.c: fix ctr bits parameter to support help inf,add arm\logic suspend volt parameter

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2013-07-27 15:26:42 +08:00
parent d42f4850f6
commit f67fa56467
1 changed files with 86 additions and 7 deletions
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93
arch/arm/mach-rk2928/pm.c Normal file → Executable file
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@@ -22,6 +22,8 @@
#include <mach/iomux.h>
#include <mach/cru.h>
#include <mach/debug_uart.h>
#include <linux/regulator/machine.h>
#define cru_readl(offset) readl_relaxed(RK2928_CRU_BASE + offset)
#define cru_writel(v, offset) do { writel_relaxed(v, RK2928_CRU_BASE + offset); dsb(); } while (0)
@@ -120,17 +122,29 @@ struct rk_soc_pm_info_st rk_soc_pm_helps[] = {
RK_SOC_PM_HELP_(WAKE_UP_KEY, "send a power key to wake up lcd"),
};
ssize_t rk_soc_pm_helps_print(char *buf)
ssize_t rk_soc_pm_helps_sprintf(char *buf)
{
char *s = buf;
int i;
for (i = 0; i < ARRAY_SIZE(rk_soc_pm_helps); i++) {
s += sprintf(s, "bit(%d): %s\n", rk_soc_pm_helps[i].offset, rk_soc_pm_helps[i].name);
for(i=0;i<ARRAY_SIZE(rk_soc_pm_helps);i++)
{
s += sprintf(s, "bit(%d): %s\n", rk_soc_pm_helps[i].offset,rk_soc_pm_helps[i].name);
}
return (s - buf);
}
return (s-buf);
}
void rk_soc_pm_helps_printk(void)
{
int i;
printk("**************rk_suspend_ctr_bits bits help***********:\n");
for(i=0;i<ARRAY_SIZE(rk_soc_pm_helps);i++)
{
printk("bit(%d): %s\n", rk_soc_pm_helps[i].offset,rk_soc_pm_helps[i].name);
}
}
// pm enter return directly
#define RK_SUSPEND_RET_DIRT_BITS ((1<<RK_PM_CTR_RET_DIRT))
@@ -143,14 +157,27 @@ ssize_t rk_soc_pm_helps_print(char *buf)
static u32 __sramdata rk_soc_pm_ctr_flags_sram = 0;
static u32 rk_soc_pm_ctr_flags = 0;
static int arm_suspend_volt = 0;
static int logic_suspend_volt = 0;
static int __init early_param_rk_soc_pm_ctr(char *str)
{
get_option(&str, &rk_soc_pm_ctr_flags);
printk("early_param_rk_soc_pm_ctr=%x\n", rk_soc_pm_ctr_flags);
printk("********rk_suspend_ctr_bits information is following:*********\n");
printk("rk_suspend_ctr_bits=%x\n",rk_soc_pm_ctr_flags);
if(rk_soc_pm_ctr_flags)
{
rk_soc_pm_helps_printk();
}
printk("********rk_suspend_ctr_bits information end*********\n");
return 0;
}
early_param("rk_soc_pm_ctr", early_param_rk_soc_pm_ctr);
early_param("rk_suspend_ctr_bits", early_param_rk_soc_pm_ctr);
void rk_soc_pm_ctr_bits_set(u32 flags)
{
@@ -189,6 +216,58 @@ void rk_soc_pm_ctr_bits_prepare(void)
}
}
static int __init set_arm_suspend_volt(char *str)
{
get_option(&str, &arm_suspend_volt);
printk("rk_suspend_arm_volt=%dmV\n", arm_suspend_volt);
return 0;
}
early_param("rk_suspend_arm_volt", set_arm_suspend_volt);
static int __init set_logic_suspend_volt(char *str)
{
get_option(&str, &logic_suspend_volt);
printk("rk_suspend_logic_volt=%dmV\n", logic_suspend_volt);
return 0;
}
early_param("rk_suspend_logic_volt", set_logic_suspend_volt);
static int __init pm_suspend_volt_seting(void)
{
struct regulator *regulator;
printk("pmic set pm_suspend_volt:\n");
if (arm_suspend_volt){
regulator = regulator_get(NULL, "vdd_cpu");
if (IS_ERR(regulator)){
printk("%s:get vdd_cpu regulator err\n", __func__);
return 0;
}
regulator_set_suspend_voltage(regulator, arm_suspend_volt);
regulator_put(regulator);
}
if (logic_suspend_volt){
regulator = regulator_get(NULL, "vdd_core");
if (IS_ERR(regulator)){
printk("%s:get vdd_core regulator err\n", __func__);
return 0;
}
regulator_set_suspend_voltage(regulator, logic_suspend_volt);
regulator_put(regulator);
}
return 0;
}
device_initcall_sync(pm_suspend_volt_seting);
/*********************************pm main function******************************************/
__weak void __sramfunc ddr_suspend(void) {}
__weak void __sramfunc ddr_resume(void) {}
__weak uint32_t __sramfunc ddr_change_freq(uint32_t nMHz)