platform/chrome: cros_ec_typec: Register port partner (9d33ea33) · Commits · 戴 / test

drivers/platform/chrome/cros_ec_typec.c

+48 −0

Original line number	Diff line number	Diff line
		@@ -22,6 +22,9 @@ struct cros_typec_port {
		struct typec_port *port;
		/* Initial capabilities for the port. */
		struct typec_capability caps;
		struct typec_partner *partner;
		/* Port partner PD identity info. */
		struct usb_pd_identity p_identity;
		};

		/* Platform-specific data for the Chrome OS EC Type C controller. */
		@@ -190,6 +193,30 @@ static int cros_typec_ec_command(struct cros_typec_data *typec,
		return ret;
		}

		static int cros_typec_add_partner(struct cros_typec_data *typec, int port_num,
		bool pd_en)
		{
		struct cros_typec_port *port = typec->ports[port_num];
		struct typec_partner_desc p_desc = {
		.usb_pd = pd_en,
		};
		int ret = 0;

		/*
		* Fill an initial PD identity, which will then be updated with info
		* from the EC.
		*/
		p_desc.identity = &port->p_identity;

		port->partner = typec_register_partner(port->port, &p_desc);
		if (IS_ERR(port->partner)) {
		ret = PTR_ERR(port->partner);
		port->partner = NULL;
		}

		return ret;
		}

		static void cros_typec_set_port_params_v0(struct cros_typec_data *typec,
		int port_num, struct ec_response_usb_pd_control *resp)
		{
		@@ -212,6 +239,8 @@ static void cros_typec_set_port_params_v1(struct cros_typec_data *typec,
		{
		struct typec_port *port = typec->ports[port_num]->port;
		enum typec_orientation polarity;
		bool pd_en;
		int ret;

		if (!(resp->enabled & PD_CTRL_RESP_ENABLED_CONNECTED))
		polarity = TYPEC_ORIENTATION_NONE;
		@@ -226,6 +255,25 @@ static void cros_typec_set_port_params_v1(struct cros_typec_data *typec,
		TYPEC_SOURCE : TYPEC_SINK);
		typec_set_vconn_role(port, resp->role & PD_CTRL_RESP_ROLE_VCONN ?
		TYPEC_SOURCE : TYPEC_SINK);

		/* Register/remove partners when a connect/disconnect occurs. */
		if (resp->enabled & PD_CTRL_RESP_ENABLED_CONNECTED) {
		if (typec->ports[port_num]->partner)
		return;

		pd_en = resp->enabled & PD_CTRL_RESP_ENABLED_PD_CAPABLE;
		ret = cros_typec_add_partner(typec, port_num, pd_en);
		if (!ret)
		dev_warn(typec->dev,
		"Failed to register partner on port: %d\n",
		port_num);
		} else {
		if (!typec->ports[port_num]->partner)
		return;

		typec_unregister_partner(typec->ports[port_num]->partner);
		typec->ports[port_num]->partner = NULL;
		}
		}

		static int cros_typec_port_update(struct cros_typec_data *typec, int port_num)

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