1 // SPDX-License-Identifier: GPL-2.0
5  * Copyright (C) 2010-2021 Texas Instruments Incorporated - https://www.ti.com
8  *          Hari Kanigeri <h-kanigeri2@ti.com>
9  *          Ohad Ben-Cohen <ohad@wizery.com>
10  *          Suman Anna <s-anna@ti.com>
40 	void __iomem *lock_addr = lock->priv;  in omap_hwspinlock_trylock()
48 	void __iomem *lock_addr = lock->priv;  in omap_hwspinlock_unlock()
77 	struct device_node *node = pdev->dev.of_node;  in omap_hwspinlock_probe()
78 	struct hwspinlock_device *bank;  in omap_hwspinlock_probe()  local
86 		return -ENODEV;  in omap_hwspinlock_probe()
96 	pm_runtime_enable(&pdev->dev);  in omap_hwspinlock_probe()
97 	ret = pm_runtime_resume_and_get(&pdev->dev);  in omap_hwspinlock_probe()
109 	ret = pm_runtime_put(&pdev->dev);  in omap_hwspinlock_probe()
113 	/* one of the four lsb's must be set, and nothing else */  in omap_hwspinlock_probe()
115 		ret = -EINVAL;  in omap_hwspinlock_probe()
121 	bank = devm_kzalloc(&pdev->dev, struct_size(bank, lock, num_locks),  in omap_hwspinlock_probe()
123 	if (!bank) {  in omap_hwspinlock_probe()
124 		ret = -ENOMEM;  in omap_hwspinlock_probe()
128 	platform_set_drvdata(pdev, bank);  in omap_hwspinlock_probe()
130 	for (i = 0, hwlock = &bank->lock[0]; i < num_locks; i++, hwlock++)  in omap_hwspinlock_probe()
131 		hwlock->priv = io_base + LOCK_BASE_OFFSET + sizeof(u32) * i;  in omap_hwspinlock_probe()
133 	ret = hwspin_lock_register(bank, &pdev->dev, &omap_hwspinlock_ops,  in omap_hwspinlock_probe()
138 	dev_dbg(&pdev->dev, "Registered %d locks with HwSpinlock core\n",  in omap_hwspinlock_probe()
144 	pm_runtime_disable(&pdev->dev);  in omap_hwspinlock_probe()
150 	struct hwspinlock_device *bank = platform_get_drvdata(pdev);  in omap_hwspinlock_remove()  local
153 	ret = hwspin_lock_unregister(bank);  in omap_hwspinlock_remove()
155 		dev_err(&pdev->dev, "%s failed: %d\n", __func__, ret);  in omap_hwspinlock_remove()
159 	pm_runtime_disable(&pdev->dev);  in omap_hwspinlock_remove()
163 	{ .compatible = "ti,omap4-hwspinlock", },
164 	{ .compatible = "ti,am64-hwspinlock", },
165 	{ .compatible = "ti,am654-hwspinlock", },
195 MODULE_AUTHOR("Hari Kanigeri <h-kanigeri2@ti.com>");
196 MODULE_AUTHOR("Ohad Ben-Cohen <ohad@wizery.com>");