74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Fake platform device API for unit testing platform drivers.
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*
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* Copyright (C) 2018, Google LLC.
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* Author: Brendan Higgins <brendanhiggins@google.com>
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*/
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#include <linux/klist.h>
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#include <linux/platform_device_mock.h>
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#include <linux/of_platform.h>
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#include "base.h"
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struct device_node *of_fake_node(struct test *test, const char *name)
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{
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struct device_node *node;
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node = test_kzalloc(test, sizeof(*node), GFP_KERNEL);
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if (!node)
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return NULL;
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of_node_init(node);
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return node;
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}
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struct platform_device *
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of_fake_probe_platform(struct test *test,
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struct platform_driver *driver,
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const char *node_name)
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{
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struct platform_device *pdev;
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struct device_node *of_node;
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int ret;
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of_node = of_fake_node(test, node_name);
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if (!of_node)
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return ERR_PTR(-ENOMEM);
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test_info(test, "Creating device");
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pdev = of_platform_device_create(of_node, node_name, NULL);
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if (!pdev)
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return ERR_PTR(-ENODEV);
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test_info(test, "Probing");
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ret = driver->probe(pdev);
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if (ret)
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return ERR_PTR(ret);
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pdev->dev.driver = &driver->driver;
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klist_add_tail(&pdev->dev.p->knode_driver,
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&pdev->dev.driver->p->klist_devices);
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if (ret)
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return ERR_PTR(ret);
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return pdev;
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}
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struct platform_device *of_fake_probe_platform_by_name(struct test *test,
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const char *driver_name,
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const char *node_name)
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{
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const struct device_driver *driver;
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test_info(test, "Locating driver by name");
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driver = driver_find(driver_name, &platform_bus_type);
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if (!driver)
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return ERR_PTR(-ENODEV);
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return of_fake_probe_platform(test,
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to_platform_driver(driver),
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node_name);
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}
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