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Merge "qcom: qnovo: allow charger error conditions to disable qnovo"

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Linux Build Service Account 2017-04-18 13:56:51 -07:00 • committed by Gerrit - the friendly Code Review server
commit 9fbdcef1d5
1 changed files with 30 additions and 7 deletions
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37
drivers/power/supply/qcom/qpnp-qnovo.c
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@ -89,7 +89,16 @@
#define QNOVO_STRM_CTRL 0xA8
#define QNOVO_IADC_OFFSET_OVR_VAL 0xA9
#define QNOVO_IADC_OFFSET_OVR 0xAA
#define QNOVO_DISABLE_CHARGING 0xAB
#define ERR_SWITCHER_DISABLED BIT(7)
#define ERR_JEITA_SOFT_CONDITION BIT(6)
#define ERR_BAT_OV BIT(5)
#define ERR_CV_MODE BIT(4)
#define ERR_BATTERY_MISSING BIT(3)
#define ERR_SAFETY_TIMER_EXPIRED BIT(2)
#define ERR_CHARGING_DISABLED BIT(1)
#define ERR_JEITA_HARD_CONDITION BIT(0)
#define QNOVO_TR_IADC_OFFSET_0 0xF1
#define QNOVO_TR_IADC_OFFSET_1 0xF2
@ -1107,24 +1116,28 @@ static int qnovo_update_status(struct qnovo *chip)
{
u8 val = 0;
int rc;
bool charging;
bool ok_to_qnovo;
bool changed = false;
rc = qnovo_read(chip, QNOVO_ERROR_STS2, &val, 1);
if (rc < 0) {
pr_err("Couldn't read error sts rc = %d\n", rc);
charging = false;
ok_to_qnovo = false;
} else {
charging = !(val & QNOVO_ERROR_CHARGING_DISABLED);
/*
* For CV mode keep qnovo enabled, userspace is expected to
* disable it after few runs
*/
ok_to_qnovo = (val == ERR_CV_MODE || val == 0) ? true : false;
}
if (chip->ok_to_qnovo ^ charging) {
if (chip->ok_to_qnovo ^ ok_to_qnovo) {
vote(chip->disable_votable, OK_TO_QNOVO_VOTER, !charging, 0);
if (!charging)
vote(chip->disable_votable, OK_TO_QNOVO_VOTER, !ok_to_qnovo, 0);
if (!ok_to_qnovo)
vote(chip->disable_votable, USER_VOTER, true, 0);
chip->ok_to_qnovo = charging;
chip->ok_to_qnovo = ok_to_qnovo;
changed = true;
}
@ -1247,6 +1260,16 @@ static int qnovo_hw_init(struct qnovo *chip)
chip->v_gain_mega = 1000000000 + (s64)(s8)vadc_gain * GAIN_LSB_FACTOR;
chip->v_gain_mega = div_s64(chip->v_gain_mega, 1000);
/* allow charger error conditions to disable qnovo, CV mode excluded */
val = ERR_SWITCHER_DISABLED | ERR_JEITA_SOFT_CONDITION | ERR_BAT_OV |
ERR_BATTERY_MISSING | ERR_SAFETY_TIMER_EXPIRED |
ERR_CHARGING_DISABLED | ERR_JEITA_HARD_CONDITION;
rc = qnovo_write(chip, QNOVO_DISABLE_CHARGING, &val, 1);
if (rc < 0) {
pr_err("Couldn't write QNOVO_DISABLE_CHARGING rc = %d\n", rc);
return rc;
}
return 0;
}