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usb: typec: ucsi: Fix cable registration

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The Cable PD Revision field in GET_CABLE_PROPERTY was
introduced in UCSI v2.1, so adding check for that.

The cable properties are also not used anywhere after the
cable is registered, so removing the cable_prop member
from struct ucsi_connector while at it.

Fixes: 38ca416597 ("usb: typec: ucsi: Register cables based on GET_CABLE_PROPERTY")
Cc: stable@vger.kernel.org
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240903130945.3395291-1-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Heikki Krogerus 2024-09-03 16:09:44 +03:00 committed by Greg Kroah-Hartman
parent de3d7969f6
commit 87eb3cb4ec
2 changed files with 15 additions and 16 deletions
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30
drivers/usb/typec/ucsi/ucsi.c
View file

@ -965,10 +965,20 @@ static void ucsi_unregister_plug(struct ucsi_connector *con)
static int ucsi_register_cable(struct ucsi_connector *con)
{
struct ucsi_cable_property cable_prop;
struct typec_cable *cable;
struct typec_cable_desc desc = {};
u64 command;
int ret;
switch (UCSI_CABLE_PROP_FLAG_PLUG_TYPE(con->cable_prop.flags)) {
command = UCSI_GET_CABLE_PROPERTY | UCSI_CONNECTOR_NUMBER(con->num);
ret = ucsi_send_command(con->ucsi, command, &cable_prop, sizeof(cable_prop));
if (ret < 0) {
dev_err(con->ucsi->dev, "GET_CABLE_PROPERTY failed (%d)\n", ret);
return ret;
}
switch (UCSI_CABLE_PROP_FLAG_PLUG_TYPE(cable_prop.flags)) {
case UCSI_CABLE_PROPERTY_PLUG_TYPE_A:
desc.type = USB_PLUG_TYPE_A;
break;
@ -984,10 +994,10 @@ static int ucsi_register_cable(struct ucsi_connector *con)
}
desc.identity = &con->cable_identity;
desc.active = !!(UCSI_CABLE_PROP_FLAG_ACTIVE_CABLE &
con->cable_prop.flags);
desc.pd_revision = UCSI_CABLE_PROP_FLAG_PD_MAJOR_REV_AS_BCD(
con->cable_prop.flags);
desc.active = !!(UCSI_CABLE_PROP_FLAG_ACTIVE_CABLE & cable_prop.flags);
if (con->ucsi->version >= UCSI_VERSION_2_1)
desc.pd_revision = UCSI_CABLE_PROP_FLAG_PD_MAJOR_REV_AS_BCD(cable_prop.flags);
cable = typec_register_cable(con->port, &desc);
if (IS_ERR(cable)) {
@ -1193,21 +1203,11 @@ static int ucsi_check_connection(struct ucsi_connector *con)
static int ucsi_check_cable(struct ucsi_connector *con)
{
u64 command;
int ret, num_plug_am;
if (con->cable)
return 0;
command = UCSI_GET_CABLE_PROPERTY | UCSI_CONNECTOR_NUMBER(con->num);
ret = ucsi_send_command(con->ucsi, command, &con->cable_prop,
sizeof(con->cable_prop));
if (ret < 0) {
dev_err(con->ucsi->dev, "GET_CABLE_PROPERTY failed (%d)\n",
ret);
return ret;
}
ret = ucsi_register_cable(con);
if (ret < 0)
return ret;

1
drivers/usb/typec/ucsi/ucsi.h
View file

@ -465,7 +465,6 @@ struct ucsi_connector {
struct ucsi_connector_status status;
struct ucsi_connector_capability cap;
struct ucsi_cable_property cable_prop;
struct power_supply *psy;
struct power_supply_desc psy_desc;
u32 rdo;