1 files changed, 0 insertions, 143 deletions
diff --git a/drivers/usb/misc/onboard_usb_hub_pdevs.c b/drivers/usb/misc/onboard_usb_hub_pdevs.c
deleted file mode 100644
index ed22a18f4ab7..000000000000
--- a/drivers/usb/misc/onboard_usb_hub_pdevs.c
+++ /dev/null
@@ -1,143 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * API for creating and destroying USB onboard hub platform devices
- *
- * Copyright (c) 2022, Google LLC
- */
-
-#include <linux/device.h>
-#include <linux/export.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/of.h>
-#include <linux/of_platform.h>
-#include <linux/platform_device.h>
-#include <linux/usb.h>
-#include <linux/usb/hcd.h>
-#include <linux/usb/of.h>
-#include <linux/usb/onboard_hub.h>
-
-#include "onboard_usb_hub.h"
-
-struct pdev_list_entry {
-	struct platform_device *pdev;
-	struct list_head node;
-};
-
-static bool of_is_onboard_usb_hub(const struct device_node *np)
-{
-	return !!of_match_node(onboard_hub_match, np);
-}
-
-/**
- * onboard_hub_create_pdevs -- create platform devices for onboard USB hubs
- * @parent_hub	: parent hub to scan for connected onboard hubs
- * @pdev_list	: list of onboard hub platform devices owned by the parent hub
- *
- * Creates a platform device for each supported onboard hub that is connected to
- * the given parent hub. The platform device is in charge of initializing the
- * hub (enable regulators, take the hub out of reset, ...) and can optionally
- * control whether the hub remains powered during system suspend or not.
- *
- * To keep track of the platform devices they are added to a list that is owned
- * by the parent hub.
- *
- * Some background about the logic in this function, which can be a bit hard
- * to follow:
- *
- * Root hubs don't have dedicated device tree nodes, but use the node of their
- * HCD. The primary and secondary HCD are usually represented by a single DT
- * node. That means the root hubs of the primary and secondary HCD share the
- * same device tree node (the HCD node). As a result this function can be called
- * twice with the same DT node for root hubs. We only want to create a single
- * platform device for each physical onboard hub, hence for root hubs the loop
- * is only executed for the root hub of the primary HCD. Since the function
- * scans through all child nodes it still creates pdevs for onboard hubs
- * connected to the root hub of the secondary HCD if needed.
- *
- * Further there must be only one platform device for onboard hubs with a peer
- * hub (the hub is a single physical device). To achieve this two measures are
- * taken: pdevs for onboard hubs with a peer are only created when the function
- * is called on behalf of the parent hub that is connected to the primary HCD
- * (directly or through other hubs). For onboard hubs connected to root hubs
- * the function processes the nodes of both peers. A platform device is only
- * created if the peer hub doesn't have one already.
- */
-void onboard_hub_create_pdevs(struct usb_device *parent_hub, struct list_head *pdev_list)
-{
-	int i;
-	struct usb_hcd *hcd = bus_to_hcd(parent_hub->bus);
-	struct device_node *np, *npc;
-	struct platform_device *pdev;
-	struct pdev_list_entry *pdle;
-
-	if (!parent_hub->dev.of_node)
-		return;
-
-	if (!parent_hub->parent && !usb_hcd_is_primary_hcd(hcd))
-		return;
-
-	for (i = 1; i <= parent_hub->maxchild; i++) {
-		np = usb_of_get_device_node(parent_hub, i);
-		if (!np)
-			continue;
-
-		if (!of_is_onboard_usb_hub(np))
-			goto node_put;
-
-		npc = of_parse_phandle(np, "peer-hub", 0);
-		if (npc) {
-			if (!usb_hcd_is_primary_hcd(hcd)) {
-				of_node_put(npc);
-				goto node_put;
-			}
-
-			pdev = of_find_device_by_node(npc);
-			of_node_put(npc);
-
-			if (pdev) {
-				put_device(&pdev->dev);
-				goto node_put;
-			}
-		}
-
-		pdev = of_platform_device_create(np, NULL, &parent_hub->dev);
-		if (!pdev) {
-			dev_err(&parent_hub->dev,
-				"failed to create platform device for onboard hub '%pOF'\n", np);
-			goto node_put;
-		}
-
-		pdle = kzalloc(sizeof(*pdle), GFP_KERNEL);
-		if (!pdle) {
-			of_platform_device_destroy(&pdev->dev, NULL);
-			goto node_put;
-		}
-
-		pdle->pdev = pdev;
-		list_add(&pdle->node, pdev_list);
-
-node_put:
-		of_node_put(np);
-	}
-}
-EXPORT_SYMBOL_GPL(onboard_hub_create_pdevs);
-
-/**
- * onboard_hub_destroy_pdevs -- free resources of onboard hub platform devices
- * @pdev_list	: list of onboard hub platform devices
- *
- * Destroys the platform devices in the given list and frees the memory associated
- * with the list entry.
- */
-void onboard_hub_destroy_pdevs(struct list_head *pdev_list)
-{
-	struct pdev_list_entry *pdle, *tmp;
-
-	list_for_each_entry_safe(pdle, tmp, pdev_list, node) {
-		list_del(&pdle->node);
-		of_platform_device_destroy(&pdle->pdev->dev, NULL);
-		kfree(pdle);
-	}
-}
-EXPORT_SYMBOL_GPL(onboard_hub_destroy_pdevs);