static ssize_t dcm_state_store(struct kobject *kobj, struct kobj_attribute *attr,const char *buf, size_t n)
{
char cmd[10];
unsigned int mask;
if (sscanf(buf, "%s %x", cmd, &mask) == 2) {
mask &= ALL_DCM;
/*
Need to enable MM clock before setting Smi_secure register
to avoid system crash while screen is off(screen off with USB cable)
*/
enable_mux(MT_MUX_MM, "DCM");
if (!strcmp(cmd, "enable")) {
dcm_dump_regs(mask);
dcm_enable(mask);
dcm_dump_regs(mask);
} else if (!strcmp(cmd, "disable")) {
dcm_dump_regs(mask);
dcm_disable(mask);
dcm_dump_regs(mask);
} else if (!strcmp(cmd, "dump")) {
dcm_dump_regs(mask);
}
disable_mux(MT_MUX_MM, "DCM");
return n;
}
return -EINVAL;
}
void mt_dcm_init(void)
{
int err = 0;
dcm_info("[%s]entry!!,ALL_DCM=%d\n", __func__,ALL_DCM);
dcm_enable(ALL_DCM);
//dcm_enable(ALL_DCM & (~IFR_DCM));
err = sysfs_create_file(power_kobj, &dcm_state_attr.attr);
if (err) {
dcm_err("[%s]: fail to create sysfs\n", __func__);
}
}
static ssize_t dcm_state_store(struct kobject *kobj, struct kobj_attribute *attr,const char *buf, size_t n)
{
char cmd[16];
unsigned int mask;
if (sscanf(buf, "%15s %x", cmd, &mask) == 2) {
mask &= ALL_DCM;
if (!strcmp(cmd, "enable")) {
dcm_dump_regs(mask);
dcm_enable(mask);
dcm_dump_regs(mask);
} else if (!strcmp(cmd, "disable")) {
dcm_dump_regs(mask);
dcm_disable(mask);
dcm_dump_regs(mask);
} else if (!strcmp(cmd, "dump")) {
dcm_dump_regs(mask);
}
return n;
}
return -EINVAL;
}
void power_saving_init(void)
{
unsigned int reg_val = 0;
dcm_enable();
/* Power Controlled by SW */
DRV_SetReg32(SC_PWR_CON5, (0x1 << PWR_CTRL));
/* pull up PWR_ISO */
DRV_SetReg32(SC_PWR_CON5, (0x1 << PWR_ISO));
/* pull down PWR_RST_B, pull up PWR_MEM_OFF and PWR_CLK_DIS */
reg_val = DRV_Reg32(SC_PWR_CON5);
reg_val = (reg_val & ~(0x1 << PWR_RST_B)) | (0x1 << PWR_MEM_OFF) | (0x1 << PWR_CLK_DIS);
DRV_WriteReg32(SC_PWR_CON5, reg_val);
/* pull down PWR_ON */
DRV_ClrReg32(SC_PWR_CON5, (0x1 << PWR_ON));
/* wait for PWR_STA update */
while ((DRV_Reg32(SC_PWR_STA) & (0x1 << MM2_SUBSYS))) {
}
}
void dcm_enable_all(void)
{
dcm_enable(ALL_DCM);
}