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Verify PMIC version before trying to interact with it

utp
Martin T. H. Sandsmark 2016-10-19 10:35:19 +02:00
parent be004af0e7
commit e7ffea40ea
1 changed files with 15 additions and 15 deletions
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30
board/reMarkable/zero-gravitas/zero-gravitas.c
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@ -330,6 +330,21 @@ int power_init_board(void)
return ret;
}
/* Get ID, verify it is a supported version */
pmic_reg_read(p, PFUZE100_DEVICEID, &id);
id = id & 0xf;
printf("PMIC: PFUZE100 ID=0x%02x\n", id);
if (id == 0) {
switch_num = 6;
offset = PFUZE100_SW1CMODE;
} else if (id == 1) {
switch_num = 4;
offset = PFUZE100_SW2MODE;
} else {
printf("PMIC: PFUZE100 ID not supported, id=%d\n", id);
return -EINVAL;
}
/* Set SW1AB stanby volage to 0.975V */
pmic_reg_read(p, PFUZE100_SW1ABSTBY, &reg);
reg &= ~SW1x_STBY_MASK;
@ -366,21 +381,6 @@ int power_init_board(void)
reg |= LDOB_3_30V;
pmic_reg_write(p, PFUZE100_VGEN6VOL, reg);
/* Get ID, verify it is a supported version */
pmic_reg_read(p, PFUZE100_DEVICEID, &id);
id = id & 0xf;
printf("PMIC: PFUZE100 ID=0x%02x\n", id);
if (id == 0) {
switch_num = 6;
offset = PFUZE100_SW1CMODE;
} else if (id == 1) {
switch_num = 4;
offset = PFUZE100_SW2MODE;
} else {
printf("PMIC: PFUZE100 ID not supported, id=%d\n", id);
return -EINVAL;
}
/* Set modes */
ret = pmic_reg_write(p, PFUZE100_SW1ABMODE, APS_PFM);
if (ret < 0) {