1 // SPDX-License-Identifier: GPL-2.0
5  * Copyright (C) 2010-2015 Texas Instruments Incorporated - http://www.ti.com
8  *          Hari Kanigeri <h-kanigeri2@ti.com>
9  *          Ohad Ben-Cohen <ohad@wizery.com>
39 	void __iomem *lock_addr = lock->priv;  in omap_hwspinlock_trylock()
47 	void __iomem *lock_addr = lock->priv;  in omap_hwspinlock_unlock()
60  * The number below is taken from an hardware specs example,
76 	struct device_node *node = pdev->dev.of_node;  in omap_hwspinlock_probe()
77 	struct hwspinlock_device *bank;  in omap_hwspinlock_probe()  local
85 		return -ENODEV;  in omap_hwspinlock_probe()
95 	pm_runtime_enable(&pdev->dev);  in omap_hwspinlock_probe()
96 	ret = pm_runtime_get_sync(&pdev->dev);  in omap_hwspinlock_probe()
98 		pm_runtime_put_noidle(&pdev->dev);  in omap_hwspinlock_probe()
102 	/* Determine number of locks */  in omap_hwspinlock_probe()
110 	ret = pm_runtime_put(&pdev->dev);  in omap_hwspinlock_probe()
116 		ret = -EINVAL;  in omap_hwspinlock_probe()
120 	num_locks = i * 32; /* actual number of locks in this device */  in omap_hwspinlock_probe()
122 	bank = devm_kzalloc(&pdev->dev, struct_size(bank, lock, num_locks),  in omap_hwspinlock_probe()
124 	if (!bank) {  in omap_hwspinlock_probe()
125 		ret = -ENOMEM;  in omap_hwspinlock_probe()
129 	platform_set_drvdata(pdev, bank);  in omap_hwspinlock_probe()
131 	for (i = 0, hwlock = &bank->lock[0]; i < num_locks; i++, hwlock++)  in omap_hwspinlock_probe()
132 		hwlock->priv = io_base + LOCK_BASE_OFFSET + sizeof(u32) * i;  in omap_hwspinlock_probe()
134 	ret = hwspin_lock_register(bank, &pdev->dev, &omap_hwspinlock_ops,  in omap_hwspinlock_probe()
139 	dev_dbg(&pdev->dev, "Registered %d locks with HwSpinlock core\n",  in omap_hwspinlock_probe()
145 	pm_runtime_disable(&pdev->dev);  in omap_hwspinlock_probe()
151 	struct hwspinlock_device *bank = platform_get_drvdata(pdev);  in omap_hwspinlock_remove()  local
154 	ret = hwspin_lock_unregister(bank);  in omap_hwspinlock_remove()
156 		dev_err(&pdev->dev, "%s failed: %d\n", __func__, ret);  in omap_hwspinlock_remove()
160 	pm_runtime_disable(&pdev->dev);  in omap_hwspinlock_remove()
166 	{ .compatible = "ti,omap4-hwspinlock", },
167 	{ .compatible = "ti,am654-hwspinlock", },
197 MODULE_AUTHOR("Hari Kanigeri <h-kanigeri2@ti.com>");
198 MODULE_AUTHOR("Ohad Ben-Cohen <ohad@wizery.com>");