diff options
| author | Nicholas Troast <ntroast@codeaurora.org> | 2016-11-09 15:13:38 -0800 |
|---|---|---|
| committer | Nicholas Troast <ntroast@codeaurora.org> | 2016-11-21 11:50:40 -0800 |
| commit | ca271780b481275e52cfa12ba310ff28324c2048 (patch) | |
| tree | c42b22512e96165f7071ee66b1d1ad7010ace317 | |
| parent | e2787f510d8879a6608bf41d0a62e32244da18fc (diff) | |
qpnp-smb2: stay in Attached.SRC state when OC is detected on VCONN
Currently when OC is detected on VCONN the hardware will disable OTG and
exit Attached.SRC state and go back to DRP toggling. If the OC persists
then the hardware will enter an infinite cycle of trying to enable OTG.
Fix this by changing the behavior such that the hardware remains in
Attached.SRC state when OC is detected on VCONN. In this case VBUS will
remain on and the OTG device may continue to work in a limited capacity
without VCONN.
Change-Id: If371ec24040ea6d45d64dec6fa32b7f9f2276dfa
Signed-off-by: Nicholas Troast <ntroast@codeaurora.org>
| -rw-r--r-- | drivers/power/qcom-charger/qpnp-smb2.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/power/qcom-charger/qpnp-smb2.c b/drivers/power/qcom-charger/qpnp-smb2.c index 8248fcee341d..257099895e00 100644 --- a/drivers/power/qcom-charger/qpnp-smb2.c +++ b/drivers/power/qcom-charger/qpnp-smb2.c @@ -1169,12 +1169,14 @@ static int smb2_init_hw(struct smb2 *chip) return rc; } - /* disable Type-C factory mode */ + /* + * disable Type-C factory mode and stay in Attached.SRC state when VCONN + * over-current happens + */ rc = smblib_masked_write(chg, TYPE_C_CFG_REG, - FACTORY_MODE_DETECTION_EN_BIT, 0); + FACTORY_MODE_DETECTION_EN_BIT | VCONN_OC_CFG_BIT, 0); if (rc < 0) { - dev_err(chg->dev, - "Couldn't disable Type-C factory mode rc=%d\n", rc); + dev_err(chg->dev, "Couldn't configure Type-C rc=%d\n", rc); return rc; } |