1 // SPDX-License-Identifier: GPL-2.0-or-later
18 static struct regmap *map;  variable
21 static u32 mask;  variable
26 	regmap_update_bits(map, offset, mask, value);  in syscon_poweroff()
33 static int syscon_poweroff_probe(struct platform_device *pdev)  in syscon_poweroff_probe()
35 	int mask_err, value_err;  in syscon_poweroff_probe()
37 	map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, "regmap");  in syscon_poweroff_probe()
38 	if (IS_ERR(map)) {  in syscon_poweroff_probe()
39 		dev_err(&pdev->dev, "unable to get syscon");  in syscon_poweroff_probe()
40 		return PTR_ERR(map);  in syscon_poweroff_probe()
43 	if (of_property_read_u32(pdev->dev.of_node, "offset", &offset)) {  in syscon_poweroff_probe()
44 		dev_err(&pdev->dev, "unable to read 'offset'");  in syscon_poweroff_probe()
45 		return -EINVAL;  in syscon_poweroff_probe()
48 	value_err = of_property_read_u32(pdev->dev.of_node, "value", &value);  in syscon_poweroff_probe()
49 	mask_err = of_property_read_u32(pdev->dev.of_node, "mask", &mask);  in syscon_poweroff_probe()
51 		dev_err(&pdev->dev, "unable to read 'value' and 'mask'");  in syscon_poweroff_probe()
52 		return -EINVAL;  in syscon_poweroff_probe()
57 		value = mask;  in syscon_poweroff_probe()
58 		mask = 0xFFFFFFFF;  in syscon_poweroff_probe()
60 		/* support value without mask*/  in syscon_poweroff_probe()
61 		mask = 0xFFFFFFFF;  in syscon_poweroff_probe()
65 		dev_err(&pdev->dev, "pm_power_off already claimed for %ps",  in syscon_poweroff_probe()
67 		return -EBUSY;  in syscon_poweroff_probe()
75 static int syscon_poweroff_remove(struct platform_device *pdev)  in syscon_poweroff_remove()
84 	{ .compatible = "syscon-poweroff" },
92 		.name = "syscon-poweroff",
97 static int __init syscon_poweroff_register(void)  in syscon_poweroff_register()