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[v7,10/14] staging: typec: tcpci: enable vbus detection

Message ID 1529914126-22550-11-git-send-email-jun.li@nxp.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jun Li June 25, 2018, 8:08 a.m. UTC 
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>
---
 drivers/staging/typec/tcpci.c | 6 ++++++
 1 file changed, 6 insertions(+)
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Patch

diff --git a/drivers/staging/typec/tcpci.c b/drivers/staging/typec/tcpci.c
index 3b35fce..4d3b0ae 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;