drivers/mfd/altera-sysmgr.c

1 // SPDX-License-Identifier: GPL-2.0
3  *  Copyright (C) 2018-2019, Intel Corporation.
7  *  Based on syscon driver.
10 #include <linux/arm-smccc.h>
13 #include <linux/mfd/altera-sysmgr.h>
14 #include <linux/mfd/syscon.h>
22  * struct altr_sysmgr - Altera SOCFPGA System Manager
108 		return ERR_PTR(-ENODEV);  in altr_sysmgr_regmap_lookup_by_phandle()
116 		return ERR_PTR(-EPROBE_DEFER);  in altr_sysmgr_regmap_lookup_by_phandle()
120 	return sysmgr->regmap;  in altr_sysmgr_regmap_lookup_by_phandle()
130 	struct device *dev = &pdev->dev;  in sysmgr_probe()
131 	struct device_node *np = dev->of_node;  in sysmgr_probe()
136 		return -ENOMEM;  in sysmgr_probe()
140 		return -ENOENT;  in sysmgr_probe()
142 	sysmgr_config.max_register = resource_size(res) -  in sysmgr_probe()
144 	if (of_device_is_compatible(np, "altr,sys-mgr-s10")) {  in sysmgr_probe()
150 					  (void *)(uintptr_t)res->start,  in sysmgr_probe()
153 		base = devm_ioremap(dev, res->start, resource_size(res));  in sysmgr_probe()
155 			return -ENOMEM;  in sysmgr_probe()
157 		sysmgr_config.max_register = resource_size(res) - 4;  in sysmgr_probe()
166 	sysmgr->regmap = regmap;  in sysmgr_probe()
174 	{ .compatible = "altr,sys-mgr" },
175 	{ .compatible = "altr,sys-mgr-s10" },