On Tue, Mar 13, 2018 at 05:34:37PM +0800, Li Jun wrote: > We need regmap_update_bits to avoid touch any other bits when > enable or disable vconn. > > Signed-off-by: Li Jun <jun.li@xxxxxxx> Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx> > --- > drivers/staging/typec/tcpci.c | 9 +++------ > 1 file changed, 3 insertions(+), 6 deletions(-) > > diff --git a/drivers/staging/typec/tcpci.c b/drivers/staging/typec/tcpci.c > index 6fdb179..46c4cff 100644 > --- a/drivers/staging/typec/tcpci.c > +++ b/drivers/staging/typec/tcpci.c > @@ -219,12 +219,9 @@ static int tcpci_set_vconn(struct tcpc_dev *tcpc, bool enable) > return ret; > } > > - ret = regmap_write(tcpci->regmap, TCPC_POWER_CTRL, > - enable ? TCPC_POWER_CTRL_VCONN_ENABLE : 0); > - if (ret < 0) > - return ret; > - > - return 0; > + return regmap_update_bits(tcpci->regmap, TCPC_POWER_CTRL, > + TCPC_POWER_CTRL_VCONN_ENABLE, > + enable ? TCPC_POWER_CTRL_VCONN_ENABLE : 0); > } > > static int tcpci_set_roles(struct tcpc_dev *tcpc, bool attached, > -- > 2.7.4 > -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
