diff options
| author | Gene Chen <gene_chen@richtek.com> | 2022-08-05 15:17:10 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-19 11:05:12 +0200 |
| commit | a2ed34df5a11bd054a6588584cad174d62707f6e (patch) | |
| tree | 9394fe90d2c7ed8963ce6977ee019a43c44d43a9 /drivers/usb/typec | |
| parent | 1e50ceb0397c14d7e934c65d862b499013847d9f (diff) | |
| download | linux-a2ed34df5a11bd054a6588584cad174d62707f6e.tar.gz linux-a2ed34df5a11bd054a6588584cad174d62707f6e.tar.bz2 linux-a2ed34df5a11bd054a6588584cad174d62707f6e.zip | |
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 <linux@roeck-us.net>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Gene Chen <gene_chen@richtek.com>
Link: https://lore.kernel.org/r/20220805071714.150882-5-gene.chen.richtek@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/typec')
| -rw-r--r-- | drivers/usb/typec/tcpm/tcpci_rt1711h.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/usb/typec/tcpm/tcpci_rt1711h.c b/drivers/usb/typec/tcpm/tcpci_rt1711h.c index fb19d7bf9d1c..5c51d0474cfa 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, |