linux-kernel - [PATCH v6 32/35] usb: typec: port-mapper: Migrate to aggregate driver

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Message-Id: <20220127200141.1295328-33-swboyd@chromium.org>
Date:   Thu, 27 Jan 2022 12:01:38 -0800
From:   Stephen Boyd <swboyd@...omium.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Douglas Anderson <dianders@...omium.org>
Cc:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Rob Clark <robdclark@...il.com>,
        Russell King <rmk+kernel@....linux.org.uk>,
        Saravana Kannan <saravanak@...gle.com>
Subject: [PATCH v6 32/35] usb: typec: port-mapper: Migrate to aggregate driver

Use an aggregate driver instead of component ops so that we can get
proper driver probe ordering of the aggregate device with respect to all
the component devices that make up the aggregate device.

Cc: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Cc: Daniel Vetter <daniel.vetter@...ll.ch>
Cc: "Rafael J. Wysocki" <rafael@...nel.org>
Cc: Rob Clark <robdclark@...il.com>
Cc: Russell King <rmk+kernel@....linux.org.uk>
Cc: Saravana Kannan <saravanak@...gle.com>
Signed-off-by: Stephen Boyd <swboyd@...omium.org>
---
 drivers/usb/typec/port-mapper.c | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/typec/port-mapper.c b/drivers/usb/typec/port-mapper.c
index 07d307418b47..33fbebc6a85b 100644
--- a/drivers/usb/typec/port-mapper.c
+++ b/drivers/usb/typec/port-mapper.c
@@ -11,19 +11,27 @@
 
 #include "class.h"
 
-static int typec_aggregate_bind(struct device *dev)
+static int typec_aggregate_probe(struct aggregate_device *adev)
 {
+	struct device *dev = aggregate_device_parent(adev);
+
 	return component_bind_all(dev, NULL);
 }
 
-static void typec_aggregate_unbind(struct device *dev)
+static void typec_aggregate_remove(struct aggregate_device *adev)
 {
+	struct device *dev = aggregate_device_parent(adev);
+
 	component_unbind_all(dev, NULL);
 }
 
-static const struct component_master_ops typec_aggregate_ops = {
-	.bind = typec_aggregate_bind,
-	.unbind = typec_aggregate_unbind,
+static struct aggregate_driver typec_aggregate_driver = {
+	.probe = typec_aggregate_probe,
+	.remove = typec_aggregate_remove,
+	.driver = {
+		.name = "typec_aggregate",
+		.owner = THIS_MODULE,
+	},
 };
 
 struct each_port_arg {
@@ -69,10 +77,10 @@ int typec_link_ports(struct typec_port *con)
 	 * improvements to the component framework. Right now you can only have
 	 * one master per device.
 	 */
-	return component_master_add_with_match(&con->dev, &typec_aggregate_ops, arg.match);
+	return component_aggregate_register(&con->dev, &typec_aggregate_driver, arg.match);
 }
 
 void typec_unlink_ports(struct typec_port *con)
 {
-	component_master_del(&con->dev, &typec_aggregate_ops);
+	component_aggregate_unregister(&con->dev, &typec_aggregate_driver);
 }
-- 
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