1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3  * SP7021 reset driver
13 #include <linux/reset-controller.h>
21 /* SP7021: mo_reset0 ~ mo_reset9 */
115 	struct sp_reset *reset = to_sp_reset(rcdev);  in sp_reset_update()  local
121 	writel(val, reset->base + (index * 4));  in sp_reset_update()
141 	struct sp_reset *reset = to_sp_reset(rcdev);  in sp_reset_status()  local
146 	reg = readl(reset->base + (index * 4));  in sp_reset_status()
160 	struct sp_reset *reset = container_of(nb, struct sp_reset, notifier);  in sp_restart()  local
162 	sp_reset_assert(&reset->rcdev, 0);  in sp_restart()
163 	sp_reset_deassert(&reset->rcdev, 0);  in sp_restart()
170 	struct device *dev = &pdev->dev;  in sp_reset_probe()
171 	struct sp_reset *reset;  in sp_reset_probe()  local
175 	reset = devm_kzalloc(dev, sizeof(*reset), GFP_KERNEL);  in sp_reset_probe()
176 	if (!reset)  in sp_reset_probe()
177 		return -ENOMEM;  in sp_reset_probe()
179 	reset->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);  in sp_reset_probe()
180 	if (IS_ERR(reset->base))  in sp_reset_probe()
181 		return PTR_ERR(reset->base);  in sp_reset_probe()
183 	reset->rcdev.ops = &sp_reset_ops;  in sp_reset_probe()
184 	reset->rcdev.owner = THIS_MODULE;  in sp_reset_probe()
185 	reset->rcdev.of_node = dev->of_node;  in sp_reset_probe()
186 	reset->rcdev.nr_resets = resource_size(res) / 4 * BITS_PER_HWM_REG;  in sp_reset_probe()
188 	ret = devm_reset_controller_register(dev, &reset->rcdev);  in sp_reset_probe()
192 	reset->notifier.notifier_call = sp_restart;  in sp_reset_probe()
193 	reset->notifier.priority = 192;  in sp_reset_probe()
195 	return register_restart_handler(&reset->notifier);  in sp_reset_probe()
199 	{.compatible = "sunplus,sp7021-reset",},
206 		.name			= "sunplus-reset",