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path: root/drivers/platform/chrome
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-rw-r--r--drivers/platform/chrome/cros_ec_typec.c50
1 files changed, 40 insertions, 10 deletions
diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c
index afba902b6491..fd446f9029a0 100644
--- a/drivers/platform/chrome/cros_ec_typec.c
+++ b/drivers/platform/chrome/cros_ec_typec.c
@@ -67,6 +67,7 @@ struct cros_typec_port {
bool sop_prime_disc_done;
struct ec_response_typec_discovery *disc_data;
struct list_head partner_mode_list;
+ struct list_head plug_mode_list;
};
/* Platform-specific data for the Chrome OS EC Type C controller. */
@@ -186,12 +187,15 @@ static int cros_typec_add_partner(struct cros_typec_data *typec, int port_num,
return ret;
}
-static void cros_typec_unregister_altmodes(struct cros_typec_data *typec, int port_num)
+static void cros_typec_unregister_altmodes(struct cros_typec_data *typec, int port_num,
+ bool is_partner)
{
struct cros_typec_port *port = typec->ports[port_num];
struct cros_typec_altmode_node *node, *tmp;
+ struct list_head *head;
- list_for_each_entry_safe(node, tmp, &port->partner_mode_list, list) {
+ head = is_partner ? &port->partner_mode_list : &port->plug_mode_list;
+ list_for_each_entry_safe(node, tmp, head, list) {
list_del(&node->list);
typec_unregister_altmode(node->amode);
devm_kfree(typec->dev, node);
@@ -203,7 +207,7 @@ static void cros_typec_remove_partner(struct cros_typec_data *typec,
{
struct cros_typec_port *port = typec->ports[port_num];
- cros_typec_unregister_altmodes(typec, port_num);
+ cros_typec_unregister_altmodes(typec, port_num, true);
port->state.alt = NULL;
port->state.mode = TYPEC_STATE_USB;
@@ -224,6 +228,8 @@ static void cros_typec_remove_cable(struct cros_typec_data *typec,
{
struct cros_typec_port *port = typec->ports[port_num];
+ cros_typec_unregister_altmodes(typec, port_num, false);
+
typec_unregister_plug(port->plug);
port->plug = NULL;
typec_unregister_cable(port->cable);
@@ -352,6 +358,7 @@ static int cros_typec_init_ports(struct cros_typec_data *typec)
}
INIT_LIST_HEAD(&cros_port->partner_mode_list);
+ INIT_LIST_HEAD(&cros_port->plug_mode_list);
}
return 0;
@@ -637,7 +644,11 @@ static int cros_typec_get_mux_info(struct cros_typec_data *typec, int port_num,
sizeof(req), resp, sizeof(*resp));
}
-static int cros_typec_register_altmodes(struct cros_typec_data *typec, int port_num)
+/*
+ * Helper function to register partner/plug altmodes.
+ */
+static int cros_typec_register_altmodes(struct cros_typec_data *typec, int port_num,
+ bool is_partner)
{
struct cros_typec_port *port = typec->ports[port_num];
struct ec_response_typec_discovery *sop_disc = port->disc_data;
@@ -655,7 +666,11 @@ static int cros_typec_register_altmodes(struct cros_typec_data *typec, int port_
desc.mode = j;
desc.vdo = sop_disc->svids[i].mode_vdo[j];
- amode = typec_partner_register_altmode(port->partner, &desc);
+ if (is_partner)
+ amode = typec_partner_register_altmode(port->partner, &desc);
+ else
+ amode = typec_plug_register_altmode(port->plug, &desc);
+
if (IS_ERR(amode)) {
ret = PTR_ERR(amode);
goto err_cleanup;
@@ -670,21 +685,30 @@ static int cros_typec_register_altmodes(struct cros_typec_data *typec, int port_
}
node->amode = amode;
- list_add_tail(&node->list, &port->partner_mode_list);
+
+ if (is_partner)
+ list_add_tail(&node->list, &port->partner_mode_list);
+ else
+ list_add_tail(&node->list, &port->plug_mode_list);
num_altmodes++;
}
}
- ret = typec_partner_set_num_altmodes(port->partner, num_altmodes);
+ if (is_partner)
+ ret = typec_partner_set_num_altmodes(port->partner, num_altmodes);
+ else
+ ret = typec_plug_set_num_altmodes(port->plug, num_altmodes);
+
if (ret < 0) {
- dev_err(typec->dev, "Unable to set partner num_altmodes for port: %d\n", port_num);
+ dev_err(typec->dev, "Unable to set %s num_altmodes for port: %d\n",
+ is_partner ? "partner" : "plug", port_num);
goto err_cleanup;
}
return 0;
err_cleanup:
- cros_typec_unregister_altmodes(typec, port_num);
+ cros_typec_unregister_altmodes(typec, port_num, is_partner);
return ret;
}
@@ -772,6 +796,12 @@ static int cros_typec_handle_sop_prime_disc(struct cros_typec_data *typec, int p
goto sop_prime_disc_exit;
}
+ ret = cros_typec_register_altmodes(typec, port_num, false);
+ if (ret < 0) {
+ dev_err(typec->dev, "Failed to register plug altmodes, port: %d\n", port_num);
+ goto sop_prime_disc_exit;
+ }
+
return 0;
sop_prime_disc_exit:
@@ -813,7 +843,7 @@ static int cros_typec_handle_sop_disc(struct cros_typec_data *typec, int port_nu
goto disc_exit;
}
- ret = cros_typec_register_altmodes(typec, port_num);
+ ret = cros_typec_register_altmodes(typec, port_num, true);
if (ret < 0) {
dev_err(typec->dev, "Failed to register partner altmodes, port: %d\n", port_num);
goto disc_exit;