1 files changed, 0 insertions, 236 deletions
diff --git a/drivers/staging/greybus/module.c b/drivers/staging/greybus/module.c
deleted file mode 100644
index 36f77f9e1d74..000000000000
--- a/drivers/staging/greybus/module.c
+++ /dev/null
@@ -1,236 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Greybus Module code
- *
- * Copyright 2016 Google Inc.
- * Copyright 2016 Linaro Ltd.
- */
-
-#include <linux/greybus.h>
-#include "greybus_trace.h"
-
-static ssize_t eject_store(struct device *dev,
-			   struct device_attribute *attr,
-			   const char *buf, size_t len)
-{
-	struct gb_module *module = to_gb_module(dev);
-	struct gb_interface *intf;
-	size_t i;
-	long val;
-	int ret;
-
-	ret = kstrtol(buf, 0, &val);
-	if (ret)
-		return ret;
-
-	if (!val)
-		return len;
-
-	for (i = 0; i < module->num_interfaces; ++i) {
-		intf = module->interfaces[i];
-
-		mutex_lock(&intf->mutex);
-		/* Set flag to prevent concurrent activation. */
-		intf->ejected = true;
-		gb_interface_disable(intf);
-		gb_interface_deactivate(intf);
-		mutex_unlock(&intf->mutex);
-	}
-
-	/* Tell the SVC to eject the primary interface. */
-	ret = gb_svc_intf_eject(module->hd->svc, module->module_id);
-	if (ret)
-		return ret;
-
-	return len;
-}
-static DEVICE_ATTR_WO(eject);
-
-static ssize_t module_id_show(struct device *dev,
-			      struct device_attribute *attr, char *buf)
-{
-	struct gb_module *module = to_gb_module(dev);
-
-	return sprintf(buf, "%u\n", module->module_id);
-}
-static DEVICE_ATTR_RO(module_id);
-
-static ssize_t num_interfaces_show(struct device *dev,
-				   struct device_attribute *attr, char *buf)
-{
-	struct gb_module *module = to_gb_module(dev);
-
-	return sprintf(buf, "%zu\n", module->num_interfaces);
-}
-static DEVICE_ATTR_RO(num_interfaces);
-
-static struct attribute *module_attrs[] = {
-	&dev_attr_eject.attr,
-	&dev_attr_module_id.attr,
-	&dev_attr_num_interfaces.attr,
-	NULL,
-};
-ATTRIBUTE_GROUPS(module);
-
-static void gb_module_release(struct device *dev)
-{
-	struct gb_module *module = to_gb_module(dev);
-
-	trace_gb_module_release(module);
-
-	kfree(module);
-}
-
-struct device_type greybus_module_type = {
-	.name		= "greybus_module",
-	.release	= gb_module_release,
-};
-
-struct gb_module *gb_module_create(struct gb_host_device *hd, u8 module_id,
-				   size_t num_interfaces)
-{
-	struct gb_interface *intf;
-	struct gb_module *module;
-	int i;
-
-	module = kzalloc(struct_size(module, interfaces, num_interfaces),
-			 GFP_KERNEL);
-	if (!module)
-		return NULL;
-
-	module->hd = hd;
-	module->module_id = module_id;
-	module->num_interfaces = num_interfaces;
-
-	module->dev.parent = &hd->dev;
-	module->dev.bus = &greybus_bus_type;
-	module->dev.type = &greybus_module_type;
-	module->dev.groups = module_groups;
-	module->dev.dma_mask = hd->dev.dma_mask;
-	device_initialize(&module->dev);
-	dev_set_name(&module->dev, "%d-%u", hd->bus_id, module_id);
-
-	trace_gb_module_create(module);
-
-	for (i = 0; i < num_interfaces; ++i) {
-		intf = gb_interface_create(module, module_id + i);
-		if (!intf) {
-			dev_err(&module->dev, "failed to create interface %u\n",
-				module_id + i);
-			goto err_put_interfaces;
-		}
-		module->interfaces[i] = intf;
-	}
-
-	return module;
-
-err_put_interfaces:
-	for (--i; i >= 0; --i)
-		gb_interface_put(module->interfaces[i]);
-
-	put_device(&module->dev);
-
-	return NULL;
-}
-
-/*
- * Register and enable an interface after first attempting to activate it.
- */
-static void gb_module_register_interface(struct gb_interface *intf)
-{
-	struct gb_module *module = intf->module;
-	u8 intf_id = intf->interface_id;
-	int ret;
-
-	mutex_lock(&intf->mutex);
-
-	ret = gb_interface_activate(intf);
-	if (ret) {
-		if (intf->type != GB_INTERFACE_TYPE_DUMMY) {
-			dev_err(&module->dev,
-				"failed to activate interface %u: %d\n",
-				intf_id, ret);
-		}
-
-		gb_interface_add(intf);
-		goto err_unlock;
-	}
-
-	ret = gb_interface_add(intf);
-	if (ret)
-		goto err_interface_deactivate;
-
-	ret = gb_interface_enable(intf);
-	if (ret) {
-		dev_err(&module->dev, "failed to enable interface %u: %d\n",
-			intf_id, ret);
-		goto err_interface_deactivate;
-	}
-
-	mutex_unlock(&intf->mutex);
-
-	return;
-
-err_interface_deactivate:
-	gb_interface_deactivate(intf);
-err_unlock:
-	mutex_unlock(&intf->mutex);
-}
-
-static void gb_module_deregister_interface(struct gb_interface *intf)
-{
-	/* Mark as disconnected to prevent I/O during disable. */
-	if (intf->module->disconnected)
-		intf->disconnected = true;
-
-	mutex_lock(&intf->mutex);
-	intf->removed = true;
-	gb_interface_disable(intf);
-	gb_interface_deactivate(intf);
-	mutex_unlock(&intf->mutex);
-
-	gb_interface_del(intf);
-}
-
-/* Register a module and its interfaces. */
-int gb_module_add(struct gb_module *module)
-{
-	size_t i;
-	int ret;
-
-	ret = device_add(&module->dev);
-	if (ret) {
-		dev_err(&module->dev, "failed to register module: %d\n", ret);
-		return ret;
-	}
-
-	trace_gb_module_add(module);
-
-	for (i = 0; i < module->num_interfaces; ++i)
-		gb_module_register_interface(module->interfaces[i]);
-
-	return 0;
-}
-
-/* Deregister a module and its interfaces. */
-void gb_module_del(struct gb_module *module)
-{
-	size_t i;
-
-	for (i = 0; i < module->num_interfaces; ++i)
-		gb_module_deregister_interface(module->interfaces[i]);
-
-	trace_gb_module_del(module);
-
-	device_del(&module->dev);
-}
-
-void gb_module_put(struct gb_module *module)
-{
-	size_t i;
-
-	for (i = 0; i < module->num_interfaces; ++i)
-		gb_interface_put(module->interfaces[i]);
-
-	put_device(&module->dev);
-}