1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2017-18 Linaro Limited
11 #include <linux/reboot.h>
12 #include <linux/reboot-mode.h>
24 static int pm8916_reboot_mode_write(struct reboot_mode_driver *reboot,  in pm8916_reboot_mode_write()  argument
28 			(reboot, struct pm8916_pon, reboot_mode);  in pm8916_reboot_mode_write()
31 	ret = regmap_update_bits(pon->regmap,  in pm8916_reboot_mode_write()
32 				 pon->baseaddr + PON_SOFT_RB_SPARE,  in pm8916_reboot_mode_write()
35 		dev_err(pon->dev, "update reboot mode bits failed\n");  in pm8916_reboot_mode_write()
45 	pon = devm_kzalloc(&pdev->dev, sizeof(*pon), GFP_KERNEL);  in pm8916_pon_probe()
47 		return -ENOMEM;  in pm8916_pon_probe()
49 	pon->dev = &pdev->dev;  in pm8916_pon_probe()
51 	pon->regmap = dev_get_regmap(pdev->dev.parent, NULL);  in pm8916_pon_probe()
52 	if (!pon->regmap) {  in pm8916_pon_probe()
53 		dev_err(&pdev->dev, "failed to locate regmap\n");  in pm8916_pon_probe()
54 		return -ENODEV;  in pm8916_pon_probe()
57 	error = of_property_read_u32(pdev->dev.of_node, "reg",  in pm8916_pon_probe()
58 				     &pon->baseaddr);  in pm8916_pon_probe()
62 	pon->reboot_mode.dev = &pdev->dev;  in pm8916_pon_probe()
63 	pon->reboot_mode.write = pm8916_reboot_mode_write;  in pm8916_pon_probe()
64 	error = devm_reboot_mode_register(&pdev->dev, &pon->reboot_mode);  in pm8916_pon_probe()
66 		dev_err(&pdev->dev, "can't register reboot mode\n");  in pm8916_pon_probe()
72 	return devm_of_platform_populate(&pdev->dev);  in pm8916_pon_probe()
76 	{ .compatible = "qcom,pm8916-pon" },
84 		.name = "pm8916-pon",