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usb: typec: stusb160x: register role switch before interrupt registration

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During interrupt registration, attach state is checked. If attached,
then the Type-C state is updated with typec_set_xxx functions and role
switch is set with usb_role_switch_set_role().

If the usb_role_switch parameter is error or null, the function simply
returns 0.

So, to update usb_role_switch role if a device is attached before the
irq is registered, usb_role_switch must be registered before irq
registration.

Fixes: da0cb63100 ("usb: typec: add support for STUSB160x Type-C controller family")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Link: https://lore.kernel.org/r/20210716120718.20398-2-amelie.delaunay@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Amelie Delaunay 2021-07-16 14:07:17 +02:00 committed by Greg Kroah-Hartman
parent 6abf2fe6b4
commit 86762ad4ab
1 changed files with 7 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
drivers/usb/typec/stusb160x.c
View file

@ -739,10 +739,6 @@ static int stusb160x_probe(struct i2c_client *client)
typec_set_pwr_opmode(chip->port, chip->pwr_opmode); typec_set_pwr_opmode(chip->port, chip->pwr_opmode);
if (client->irq) { if (client->irq) {
ret = stusb160x_irq_init(chip, client->irq);
if (ret)
goto port_unregister;
chip->role_sw = fwnode_usb_role_switch_get(fwnode); chip->role_sw = fwnode_usb_role_switch_get(fwnode);
if (IS_ERR(chip->role_sw)) { if (IS_ERR(chip->role_sw)) {
ret = PTR_ERR(chip->role_sw); ret = PTR_ERR(chip->role_sw);
@ -752,6 +748,10 @@ static int stusb160x_probe(struct i2c_client *client)
ret); ret);
goto port_unregister; goto port_unregister;
} }
ret = stusb160x_irq_init(chip, client->irq);
if (ret)
goto role_sw_put;
} else { } else {
/* /*
* If Source or Dual power role, need to enable VDD supply * If Source or Dual power role, need to enable VDD supply
@ -775,6 +775,9 @@ static int stusb160x_probe(struct i2c_client *client)
return 0; return 0;
role_sw_put:
if (chip->role_sw)
usb_role_switch_put(chip->role_sw);
port_unregister: port_unregister:
typec_unregister_port(chip->port); typec_unregister_port(chip->port);
all_reg_disable: all_reg_disable: