linux-kernel - [PATCH 03/10] platform/chrome: cros_ec

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Date:   Wed, 28 Dec 2022 00:45:06 +0000
From:   Prashant Malani <pmalani@...omium.org>
To:     linux-kernel@...r.kernel.org, chrome-platform@...ts.linux.dev
Cc:     heikki.krogerus@...ux.intel.com,
        Prashant Malani <pmalani@...omium.org>,
        Benson Leung <bleung@...omium.org>,
        Daisuke Nojiri <dnojiri@...omium.org>,
        "Dustin L. Howett" <dustin@...ett.net>,
        Evan Green <evgreen@...omium.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Guenter Roeck <groeck@...omium.org>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Lee Jones <lee.jones@...aro.org>, Lee Jones <lee@...nel.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Tinghan Shen <tinghan.shen@...iatek.com>,
        Tzung-Bi Shih <tzungbi@...nel.org>,
        Xiang wangx <wangxiang@...rlc.com>
Subject: [PATCH 03/10] platform/chrome: cros_ec_typec: Stash port driver info

Stash port number and a pointer to the driver-specific struct in the
local typec port struct.

These can be useful to the port driver to figure out how to communicate
with the Chrome EC when an altmode-driver related callback is invoked
from the Type-C class code.

Signed-off-by: Prashant Malani <pmalani@...omium.org>
---
 drivers/platform/chrome/cros_ec_typec.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c
index 001b0de95a46..bc8dc8bd90b3 100644
--- a/drivers/platform/chrome/cros_ec_typec.c
+++ b/drivers/platform/chrome/cros_ec_typec.c
@@ -45,6 +45,7 @@ struct cros_typec_altmode_node {
 /* Per port data. */
 struct cros_typec_port {
 	struct typec_port *port;
+	int port_num;
 	/* Initial capabilities for the port. */
 	struct typec_capability caps;
 	struct typec_partner *partner;
@@ -78,6 +79,8 @@ struct cros_typec_port {
 	struct usb_power_delivery *partner_pd;
 	struct usb_power_delivery_capabilities *partner_src_caps;
 	struct usb_power_delivery_capabilities *partner_sink_caps;
+
+	struct cros_typec_data *typec_data;
 };
 
 /* Platform-specific data for the Chrome OS EC Type C controller. */
@@ -408,6 +411,8 @@ static int cros_typec_init_ports(struct cros_typec_data *typec)
 			goto unregister_ports;
 		}
 
+		cros_port->port_num = port_num;
+		cros_port->typec_data = typec;
 		typec->ports[port_num] = cros_port;
 		cap = &cros_port->caps;
 
-- 
2.39.0.314.g84b9a713c41-goog