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power: force hvdcp 5v charging

Browse source 
Only allow hvdcp 5V charging for QC2.0 and QC3.0
chargers, and increase hvdcp voltage within 5.5V
to maintain stable 15W charging.

Mot-CRs-fixed: (CR)

Change-Id: Ie2292e3215263fac30f98542a68620cc21a6c5d4
Signed-off-by: Yonghua Yan <yanyh2@motorola.com>
Reviewed-on: https://gerrit.mot.com/1351497
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Kenneth Kessler <kennykessler@motorola.com>
Submit-Approved: Jira Key
Reviewed-on: https://gerrit.mot.com/1355884
This commit is contained in:
Yonghua Yan 2019-05-09 21:43:37 +08:00
commit 6ef5c86105
1 changed files with 96 additions and 0 deletions
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96
drivers/power/qpnp-smbcharger-mmi/qpnp-smbcharger-mmi.c
View file

@ -91,6 +91,9 @@ static struct smb_mmi_charger *this_chip = NULL;
#define USBIN_PLUGIN_RT_STS_BIT BIT(4)
#define USBIN_CMD_ICL_OVERRIDE_REG (USBIN_BASE + 0x42)
#define USBIN_ICL_OVERRIDE_BIT BIT(0)
#define HVDCP_PULSE_COUNT_MAX_REG (USBIN_BASE + 0x5B)
#define HVDCP_PULSE_COUNT_MAX_QC2_MASK GENMASK(7, 6)
#define HVDCP_PULSE_COUNT_MAX_QC3_MASK GENMASK(5, 0)
#define USBIN_ICL_OPTIONS_REG (USBIN_BASE + 0x66)
#define USBIN_MODE_CHG_BIT BIT(0)
#define USBIN_LOAD_CFG_REG (USBIN_BASE + 0x65)
@ -334,6 +337,9 @@ struct smb_mmi_charger {
bool *debug_enabled;
void *ipc_log;
bool force_hvdcp_5v;
int inc_hvdcp_cnt;
};
#define CHGR_FAST_CHARGE_CURRENT_CFG_REG (CHGR_BASE + 0x61)
@ -1532,6 +1538,71 @@ static int get_prop_charger_present(struct smb_mmi_charger *chg,
return rc;
}
#define HVDCP_VOLTAGE_NOM 5000
#define HVDCP_VOLTAGE_MAX 5400
#define HVDCP_VOLTAGE_MIN 4000
#define HVDCP_VOLTAGE_TARGET 5200
#define HVDCP_PULSE_COUNT_MAX 4
static void mmi_chrg_usb_vin_config(struct smb_mmi_charger *chg, int cur_mv)
{
int rc = -EINVAL;
union power_supply_propval val = {0, };
if (!chg->usb_psy || !chg->qcom_psy)
return;
if (cur_mv < HVDCP_VOLTAGE_MIN)
return;
rc = power_supply_get_property(chg->usb_psy,
POWER_SUPPLY_PROP_PD_ACTIVE, &val);
if (rc < 0) {
mmi_err(chg, "Couldn't read PD active rc=%d\n", rc);
} else if (val.intval) {
mmi_dbg(chg, "Skip usb vbus voltage config for PD charger\n");
return;
}
rc = power_supply_get_property(chg->usb_psy,
POWER_SUPPLY_PROP_REAL_TYPE, &val);
if (rc < 0) {
mmi_err(chg, "Couldn't read charger type rc=%d\n", rc);
return;
}
if (val.intval != POWER_SUPPLY_TYPE_USB_HVDCP_3)
return;
/* Maintain vbus voltage for QC3.0 5V/3A 15W charging */
rc = power_supply_get_property(chg->qcom_psy,
POWER_SUPPLY_PROP_DP_DM, &val);
if (rc < 0) {
mmi_err(chg, "Couldn't read dpdm pulse count rc=%d\n", rc);
return;
}
if (cur_mv < HVDCP_VOLTAGE_NOM && val.intval < chg->inc_hvdcp_cnt)
val.intval = POWER_SUPPLY_DP_DM_DP_PULSE;
else if (cur_mv > HVDCP_VOLTAGE_MAX && val.intval > 0)
val.intval = POWER_SUPPLY_DP_DM_DM_PULSE;
else {
mmi_dbg(chg, "No need to change hvdcp voltage\n");
return;
}
rc = power_supply_set_property(chg->qcom_psy,
POWER_SUPPLY_PROP_DP_DM, &val);
if (rc < 0) {
mmi_err(chg, "Couldn't set dpdm pulse rc=%d\n", rc);
return;
}
power_supply_changed(chg->usb_psy);
}
static void mmi_chrg_input_config(struct smb_mmi_charger *chg,
struct smb_mmi_chg_status *stat)
{
if (chg->force_hvdcp_5v)
mmi_chrg_usb_vin_config(chg, stat->usb_mv);
}
#define WEAK_CHRG_THRSH 450
#define TURBO_CHRG_THRSH 2500
void mmi_chrg_rate_check(struct smb_mmi_charger *chg)
@ -2593,6 +2664,8 @@ static void mmi_heartbeat_work(struct work_struct *work)
if (chip->charging_limit_modes == CHARGING_LIMIT_RUN)
mmi_warn(chip, "Factory Mode/Image so Limiting Charging!!!\n");
mmi_chrg_input_config(chip, &chg_stat);
if (chip->max_main_psy && chip->max_flip_psy) {
cap_err = 0;
rc = power_supply_get_property(chip->max_main_psy,
@ -3042,6 +3115,10 @@ static int batt_set_prop(struct power_supply *psy,
case POWER_SUPPLY_PROP_CYCLE_COUNT:
chip->cycles += val->intval * 100;
break;
case POWER_SUPPLY_PROP_DP_DM:
/* Skip the hvdcp request from hvdcp daemon */
if (chip->force_hvdcp_5v)
break;
default:
rc = power_supply_set_property(chip->qcom_psy, prop, val);
if (rc < 0) {
@ -3171,6 +3248,12 @@ static int parse_mmi_dt(struct smb_mmi_charger *chg)
if (rc)
chg->dc_cl_ma = -EINVAL;
chg->force_hvdcp_5v = of_property_read_bool(node, "qcom,force-hvdcp-5v");
rc = of_property_read_u32(node, "qcom,inc-hvdcp-cnt",
&chg->inc_hvdcp_cnt);
if (rc)
chg->inc_hvdcp_cnt = HVDCP_PULSE_COUNT_MAX;
return rc;
}
@ -3500,6 +3583,19 @@ static int smb_mmi_probe(struct platform_device *pdev)
USBIN_ADAPTER_ALLOW_5V_TO_9V))
mmi_err(chip, "Could Not set USB Adapter CFG\n");
/*
* Only 5V is allowed for QC2.0 and QC3.0, so set pulse count max
* accordingly to limit voltage increment.
*/
if (chip->force_hvdcp_5v) {
rc = smblib_masked_write_mmi(chip, HVDCP_PULSE_COUNT_MAX_REG,
HVDCP_PULSE_COUNT_MAX_QC2_MASK |
HVDCP_PULSE_COUNT_MAX_QC3_MASK,
chip->inc_hvdcp_cnt);
if (rc < 0)
mmi_err(chip, "Could not set HVDCP pulse count max\n");
}
chip->factory_mode = mmi_factory_check();
chip->is_factory_image = false;
chip->charging_limit_modes = CHARGING_LIMIT_UNKNOWN;