A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-07 04:12:04 -04:00
Code Issues Projects Releases Packages Wiki Activity

power: smb1398-charger: Toggle UVLO-config on USB removal and shutdown

Browse source 
To prevent leakage in ship-mode toggle OVP_IGNORE_UVLO after
USB-removal and during shutdown.

Change-Id: Idb482dd63d4939be5b19594385c642a61531e662
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
This commit is contained in:
Anirudh Ghayal 2020-12-06 17:33:13 +05:30
commit ed3ba9ec79
1 changed files with 48 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

48
drivers/power/supply/qcom/smb1398-charger.c
View file

@ -180,6 +180,9 @@
#define PERPH0_CFG_SDCDC_REG 0x267A
#define EN_WIN_UV_BIT BIT(7)
#define PERPH0_SOVP_CFG0_REG 0x2680
#define CFG_OVP_IGNORE_UVLO BIT(5)
#define PERPH0_SSUPPLY_CFG0_REG 0x2682
#define EN_HV_OV_OPTION2_BIT BIT(7)
#define EN_MV_OV_OPTION2_BIT BIT(5)
@ -308,6 +311,7 @@ struct smb1398_chip {
struct power_supply *pre_regulator_psy;
struct power_supply *batt_psy;
struct power_supply *dc_psy;
struct power_supply *usb_psy;
struct notifier_block nb;
struct votable *awake_votable;
@ -355,6 +359,7 @@ struct smb1398_chip {
bool slave_en;
bool in_suspend;
bool disabled;
bool usb_present;
};
struct cp_iio_prop_channels {
@ -1044,6 +1049,23 @@ static char *div2_cp_get_model_name(struct smb1398_chip *chip)
return "SMB1398_V1";
}
static int smb1398_toggle_uvlo(struct smb1398_chip *chip)
{
int rc;
rc = smb1398_masked_write(chip, PERPH0_SOVP_CFG0_REG,
CFG_OVP_IGNORE_UVLO, CFG_OVP_IGNORE_UVLO);
if (rc < 0)
dev_err(chip->dev, "Couldn't write IGNORE_UVLO rc=%d\n", rc);
rc = smb1398_masked_write(chip, PERPH0_SOVP_CFG0_REG,
CFG_OVP_IGNORE_UVLO, 0);
if (rc < 0)
dev_err(chip->dev, "Couldn't write IGNORE_UVLO, rc=%d\n", rc);
return rc;
}
static enum power_supply_property div2_cp_master_props[] = {
POWER_SUPPLY_PROP_MODEL_NAME,
};
@ -1105,6 +1127,14 @@ static bool is_psy_voter_available(struct smb1398_chip *chip)
}
}
if (!chip->usb_psy) {
chip->usb_psy = power_supply_get_by_name("usb");
if (!chip->usb_psy) {
dev_dbg(chip->dev, "Couldn't find usb psy\n");
return false;
}
}
if (!chip->dc_psy) {
chip->dc_psy = power_supply_get_by_name("dc");
if (!chip->dc_psy) {
@ -1590,6 +1620,20 @@ static void smb1398_status_change_work(struct work_struct *work)
if (!is_cutoff_soc_reached(chip))
vote(chip->div2_cp_disable_votable, CUTOFF_SOC_VOTER, false, 0);
rc = power_supply_get_property(chip->usb_psy,
POWER_SUPPLY_PROP_PRESENT, &pval);
if (rc < 0) {
dev_err(chip->dev,
"Couldn't get USB PRESENT status, rc=%d\n", rc);
goto out;
}
if (chip->usb_present != !!pval.intval) {
chip->usb_present = !!pval.intval;
if (!chip->usb_present) /* USB has been removed */
smb1398_toggle_uvlo(chip);
}
rc = cp_read_iio_prop(chip, QPNP_SMB5, SMB_EN_MODE, &val);
if (rc < 0) {
dev_err(chip->dev, "Couldn't get SMB_EN_MODE, rc=%d\n", rc);
@ -2968,6 +3012,10 @@ static void smb1398_shutdown(struct platform_device *pdev)
rc = smb1398_div2_cp_switcher_en(chip, 0);
if (rc < 0)
dev_err(chip->dev, "Couldn't disable chip rc= %d\n", rc);
rc = smb1398_toggle_uvlo(chip);
if (rc < 0)
dev_err(chip->dev, "Couldn't toggle uvlo rc= %d\n", rc);
}
static const struct dev_pm_ops smb1398_pm_ops = {