hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

staging: typec: tcpci: Only touch target bit when enable vconn 

We need regmap_update_bits to avoid touch any other bits when
enable or disable vconn.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Li Jun 2018-06-27 07:45:31 +08:00 committed by Greg Kroah-Hartman
parent 3af50c2933
commit 002514880e
1 changed files with 3 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/staging/typec/tcpci.c
View File

@ -218,12 +218,9 @@ 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,