From: Li Jun <jun.li@nxp.com>
Date: Tue, 26 Jun 2018 23:45:28 +0000 (+0800)
Subject: staging: typec: tcpci: enable vbus detection
X-Git-Tag: v4.19-rc1~103^2~55
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=21046320b43811fb52787939e4607818687b8b39;p=linux.git

staging: typec: tcpci: enable vbus detection

TCPCI implementation may need SW to enable VBUS detection to generate
power status events.

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/typec/tcpci.c b/drivers/staging/typec/tcpci.c
index 3b35fce62cf2..4d3b0aedd330 100644
--- a/drivers/staging/typec/tcpci.c
+++ b/drivers/staging/typec/tcpci.c
@@ -373,6 +373,12 @@ static int tcpci_init(struct tcpc_dev *tcpc)
 	if (ret < 0)
 		return ret;
 
+	/* Enable Vbus detection */
+	ret = regmap_write(tcpci->regmap, TCPC_COMMAND,
+			   TCPC_CMD_ENABLE_VBUS_DETECT);
+	if (ret < 0)
+		return ret;
+
 	reg = TCPC_ALERT_TX_SUCCESS | TCPC_ALERT_TX_FAILED |
 		TCPC_ALERT_TX_DISCARDED | TCPC_ALERT_RX_STATUS |
 		TCPC_ALERT_RX_HARD_RST | TCPC_ALERT_CC_STATUS;