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qpnp-smbcharger-mmi: Offer hvdcp_power_max setting by sysfs

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To proivde a sysfs node to reset hvdcp_power_max setting,
and rerun HVDCP process after that

Change-Id: I497a22d3e6974f27396595f894d868b55f4a80f0
Signed-off-by: xuwt2 <xuwt2@lenovo.com>
Reviewed-on: https://gerrit.mot.com/1686918
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Haijian Ma <mahj8@motorola.com>
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
xuwt2 2020-07-16 19:44:00 +08:00 • committed by Wentao Xu
commit 1bf5c78fff
1 changed files with 73 additions and 1 deletions
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74
drivers/power/qpnp-smbcharger-mmi/qpnp-smbcharger-mmi.c
View file

@ -1916,8 +1916,9 @@ static int mmi_increase_vbus_power(struct smb_mmi_charger *chg, int cur_mv)
}
/* Maintain vbus voltage for QC3.0 power/3A charging */
if (pulse_cnt == 0) {
if (pulse_cnt == 0 || chg->inc_hvdcp_cnt != HVDCP_PULSE_COUNT_MAX) {
chg->inc_hvdcp_cnt = HVDCP_PULSE_COUNT_MAX;
vote(chg->chg_dis_votable, MMI_HB_VOTER, true, 0);
while (cur_mv < HVDCP_VOLTAGE_NOM && pulse_cnt < chg->inc_hvdcp_cnt) {
@ -1962,6 +1963,72 @@ static int mmi_increase_vbus_power(struct smb_mmi_charger *chg, int cur_mv)
return cur_mv;
}
static ssize_t force_hvdcp_power_max_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
unsigned long r;
unsigned long power;
struct platform_device *pdev = to_platform_device(dev);
struct smb_mmi_charger *mmi_chip = platform_get_drvdata(pdev);
r = kstrtoul(buf, 0, &power);
if (r) {
pr_err("SMBMMI: Invalid hvdcp_power_max value = %lu\n", power);
return -EINVAL;
}
if (!mmi_chip) {
pr_err("SMBMMI: chip not valid\n");
return -ENODEV;
}
if ((power >= CHARGER_POWER_15W) &&
(power <= CHARGER_POWER_20W) &&
(mmi_chip->hvdcp_power_max != power)) {
mmi_chip->hvdcp_power_max = power;
r = smblib_masked_write_mmi(mmi_chip, HVDCP_PULSE_COUNT_MAX_REG,
HVDCP_PULSE_COUNT_MAX_QC2_MASK |
HVDCP_PULSE_COUNT_MAX_QC3_MASK,
HVDCP_PULSE_COUNT_MAX);
if (r < 0) {
mmi_err(mmi_chip, "Could not set HVDCP pulse count max\n");
return r;
}
cancel_delayed_work(&mmi_chip->heartbeat_work);
schedule_delayed_work(&mmi_chip->heartbeat_work,
msecs_to_jiffies(100));
mmi_info(mmi_chip, "Reset hvdcp power max as %d, "
"Reschedule heartbeat\n",
mmi_chip->hvdcp_power_max);
}
return r ? r : count;
}
static ssize_t force_hvdcp_power_max_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int power;
struct platform_device *pdev = to_platform_device(dev);
struct smb_mmi_charger *mmi_chip = platform_get_drvdata(pdev);
if (!mmi_chip) {
pr_err("SMBMMI: chip not valid\n");
return -ENODEV;
}
power = mmi_chip->hvdcp_power_max;
return scnprintf(buf, CHG_SHOW_MAX_SIZE, "%d\n", power);
}
static DEVICE_ATTR(force_hvdcp_power_max, 0644,
force_hvdcp_power_max_show,
force_hvdcp_power_max_store);
static void mmi_chrg_usb_vin_config(struct smb_mmi_charger *chg, int cur_mv)
{
int rc = -EINVAL;
@ -4302,6 +4369,11 @@ static int smb_mmi_probe(struct platform_device *pdev)
if (rc)
mmi_err(chip, "Couldn't create factory_charge_upper\n");
rc = device_create_file(chip->dev,
&dev_attr_force_hvdcp_power_max);
if (rc)
mmi_err(chip, "Couldn't create force_hvdcp_power_max\n");
/* Register the notifier for the psy updates*/
chip->mmi_psy_notifier.notifier_call = mmi_psy_notifier_call;
rc = power_supply_reg_notifier(&chip->mmi_psy_notifier);