From mboxrd@z Thu Jan 1 00:00:00 1970 From: Li Jun Subject: [PATCH resend 06/12] staging: typec: tcpci: enable vbus detection Date: Tue, 26 Sep 2017 12:05:17 +0800 Message-ID: <1506398723-19359-7-git-send-email-jun.li@nxp.com> References: <1506398723-19359-1-git-send-email-jun.li@nxp.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1506398723-19359-1-git-send-email-jun.li-3arQi8VN3Tc@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org, linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, heikki.krogerus-VuQAYsv1563Yd54FQh9/CA@public.gmane.org Cc: yueyao-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, o_leveque-1tsiiZ//OF9QFI55V6+gNQ@public.gmane.org, peter.chen-3arQi8VN3Tc@public.gmane.org, aisheng.dong-3arQi8VN3Tc@public.gmane.org, jun.li-3arQi8VN3Tc@public.gmane.org, linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: devicetree@vger.kernel.org TCPCI implementation may need SW to enable VBUS detection to generate power status events. Signed-off-by: Li Jun --- drivers/staging/typec/tcpci.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/staging/typec/tcpci.c b/drivers/staging/typec/tcpci.c index 6d608b4..851d026 100644 --- a/drivers/staging/typec/tcpci.c +++ b/drivers/staging/typec/tcpci.c @@ -313,6 +313,26 @@ static int tcpci_pd_transmit(struct tcpc_dev *tcpc, return 0; } +static int tcpci_vbus_detect(struct tcpc_dev *tcpc, bool enable) +{ + struct tcpci *tcpci = tcpc_to_tcpci(tcpc); + int ret; + + if (enable) { + ret = regmap_write(tcpci->regmap, TCPC_COMMAND, + TCPC_CMD_ENABLE_VBUS_DETECT); + if (ret < 0) + return ret; + } else { + ret = regmap_write(tcpci->regmap, TCPC_COMMAND, + TCPC_CMD_DISABLE_VBUS_DETECT); + if (ret < 0) + return ret; + } + + return 0; +} + static int tcpci_init(struct tcpc_dev *tcpc) { struct tcpci *tcpci = tcpc_to_tcpci(tcpc); @@ -344,6 +364,9 @@ static int tcpci_init(struct tcpc_dev *tcpc) if (ret < 0) return ret; + /* Enable Vbus detection */ + tcpci_vbus_detect(tcpc, true); + 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; -- 2.6.6 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html