PD major revision for the port partner is described in
GET_CONNECTOR_CAPABILITY and is only valid on UCSI 2.0 and newer. Update
the pd_revision on the partner if the UCSI version is 2.0 or newer.
Reviewed-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
Reviewed-by: Prashant Malani <pmalani@xxxxxxxxxxxx>
Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@xxxxxxxxxxxx>
---
$ cat /sys/class/typec/port2-partner/usb_power_delivery_revision
3.0
Changes in v4:
- Replace IS_MIN_VERSION macro and just compare version directly.
Changes in v2:
- Formatting changes and update macro to use brackets.
- Fix incorrect guard condition when checking connector capability.
drivers/usb/typec/ucsi/ucsi.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
index d9a345ec62c3..9d49dbeee9d5 100644
--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c
@@ -782,6 +782,7 @@ static int ucsi_register_partner(struct ucsi_connector *con)
}
desc.usb_pd = pwr_opmode == UCSI_CONSTAT_PWR_OPMODE_PD;
+ desc.pd_revision = UCSI_CONCAP_FLAG_PARTNER_PD_MAJOR_REV_AS_BCD(con->cap.flags);
partner = typec_register_partner(con->port, &desc);
if (IS_ERR(partner)) {
@@ -856,6 +857,27 @@ static void ucsi_partner_change(struct ucsi_connector *con)
con->num, u_role);
}
+static int ucsi_check_connector_capability(struct ucsi_connector *con)
+{
+ u64 command;
+ int ret;
+
+ if (!con->partner || con->ucsi->version < UCSI_VERSION_2_0)
+ return 0;
+
+ command = UCSI_GET_CONNECTOR_CAPABILITY | UCSI_CONNECTOR_NUMBER(con->num);
+ ret = ucsi_send_command(con->ucsi, command, &con->cap, sizeof(con->cap));
+ if (ret < 0) {
+ dev_err(con->ucsi->dev, "GET_CONNECTOR_CAPABILITY failed (%d)\n", ret);
+ return ret;
+ }
+
+ typec_partner_set_pd_revision(con->partner,
+ UCSI_CONCAP_FLAG_PARTNER_PD_MAJOR_REV_AS_BCD(con->cap.flags));
+
+ return ret;
+}
+
static int ucsi_check_connection(struct ucsi_connector *con)
{
u8 prev_flags = con->status.flags;
@@ -925,6 +947,7 @@ static void ucsi_handle_connector_change(struct work_struct *work)
if (con->status.flags & UCSI_CONSTAT_CONNECTED) {
ucsi_register_partner(con);
ucsi_partner_task(con, ucsi_check_connection, 1, HZ);
+ ucsi_partner_task(con, ucsi_check_connector_capability, 1, HZ);
if (UCSI_CONSTAT_PWR_OPMODE(con->status.flags) ==
UCSI_CONSTAT_PWR_OPMODE_PD)
--
2.43.0.687.g38aa6559b0-goog
