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usb: typec: fusb302: Implement start_toggling for all port-types 

When in single-role port mode, we must start single-role toggling to
get an interrupt when a device / cable gets plugged into the port.

This commit modifies the fusb302 start_toggling implementation to
start toggling for all port-types, so that connection-detection works
on single-role ports too.

Fixes: ea3b4d5523bc("usb: typec: fusb302: Resolve fixed power role ...")
Cc: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hans de Goede 2019-04-16 22:07:53 +02:00 committed by Greg Kroah-Hartman
parent 7893f9e1c2
commit 6258db14d7
1 changed files with 13 additions and 3 deletions
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16
drivers/usb/typec/tcpm/fusb302.c
View File

@ -882,10 +882,20 @@ static int tcpm_start_toggling(struct tcpc_dev *dev,
{
struct fusb302_chip *chip = container_of(dev, struct fusb302_chip,
tcpc_dev);
enum toggling_mode mode = TOGGLING_MODE_OFF;
int ret = 0;
if (port_type != TYPEC_PORT_DRP)
return -EOPNOTSUPP;
switch (port_type) {
case TYPEC_PORT_SRC:
mode = TOGGLING_MODE_SRC;
break;
case TYPEC_PORT_SNK:
mode = TOGGLING_MODE_SNK;
break;
case TYPEC_PORT_DRP:
mode = TOGGLING_MODE_DRP;
break;
}
mutex_lock(&chip->lock);
ret = fusb302_set_src_current(chip, cc_src_current[cc]);
@ -894,7 +904,7 @@ static int tcpm_start_toggling(struct tcpc_dev *dev,
typec_cc_status_name[cc], ret);
goto done;
}
ret = fusb302_set_toggling(chip, TOGGLING_MODE_DRP);
ret = fusb302_set_toggling(chip, mode);
if (ret < 0) {
fusb302_log(chip,
"unable to start drp toggling, ret=%d", ret);