From: Gene Chen Date: Fri, 5 Aug 2022 07:17:10 +0000 (+0800) Subject: usb: typec: tcpci_rt1711h: Add initial phy setting X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a2ed34df5a11bd054a6588584cad174d62707f6e;p=linux.git usb: typec: tcpci_rt1711h: Add initial phy setting Add initial phy setting about phy dicard retry, rx filter deglitch time and BMC-encoded wait time Reviewed-by: Guenter Roeck Reviewed-by: Heikki Krogerus Signed-off-by: Gene Chen Link: https://lore.kernel.org/r/20220805071714.150882-5-gene.chen.richtek@gmail.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/typec/tcpm/tcpci_rt1711h.c b/drivers/usb/typec/tcpm/tcpci_rt1711h.c index fb19d7bf9d1c3..5c51d0474cfa4 100644 --- a/drivers/usb/typec/tcpm/tcpci_rt1711h.c +++ b/drivers/usb/typec/tcpm/tcpci_rt1711h.c @@ -19,6 +19,9 @@ #define RT1711H_VID 0x29CF #define RT1711H_PID 0x1711 +#define RT1711H_PHYCTRL1 0x80 +#define RT1711H_PHYCTRL2 0x81 + #define RT1711H_RTCTRL8 0x9B /* Autoidle timeout = (tout * 2 + 1) * 6.4ms */ @@ -106,8 +109,18 @@ static int rt1711h_init(struct tcpci *tcpci, struct tcpci_data *tdata) return ret; /* dcSRC.DRP : 33% */ - return rt1711h_write16(chip, RT1711H_RTCTRL16, 330); + ret = rt1711h_write16(chip, RT1711H_RTCTRL16, 330); + if (ret < 0) + return ret; + + /* Enable phy discard retry, retry count 7, rx filter deglitch 100 us */ + ret = rt1711h_write8(chip, RT1711H_PHYCTRL1, 0xF1); + if (ret < 0) + return ret; + /* Decrease wait time of BMC-encoded 1 bit from 2.67us to 2.55us */ + /* wait time : (val * .4167) us */ + return rt1711h_write8(chip, RT1711H_PHYCTRL2, 62); } static int rt1711h_set_vbus(struct tcpci *tcpci, struct tcpci_data *tdata,