diff options
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/smb349-charger.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/drivers/power/smb349-charger.c b/drivers/power/smb349-charger.c index 6164905efb70..62d516b374b8 100644 --- a/drivers/power/smb349-charger.c +++ b/drivers/power/smb349-charger.c @@ -170,17 +170,28 @@ static int smb349_configure_otg(struct i2c_client *client, int enable) } if (enable) { - /* Configure PGOOD to be active low */ - ret = smb349_read(client, SMB349_SYSOK_USB3); + /* Configure PGOOD to be active low if no 5V on VBUS */ + ret = smb349_read(client, SMB349_STS_REG_C); if (ret < 0) { dev_err(&client->dev, "%s: err %d\n", __func__, ret); goto error; } - ret = smb349_write(client, SMB349_SYSOK_USB3, (ret & (~(1)))); - if (ret < 0) { - dev_err(&client->dev, "%s: err %d\n", __func__, ret); - goto error; + if (!(ret & 0x01)) { + ret = smb349_read(client, SMB349_SYSOK_USB3); + if (ret < 0) { + dev_err(&client->dev, "%s: err %d\n", + __func__, ret); + goto error; + } + + ret = smb349_write(client, SMB349_SYSOK_USB3, + (ret & (~(1)))); + if (ret < 0) { + dev_err(&client->dev, "%s: err %d\n", + __func__, ret); + goto error; + } } /* Enable OTG */ |