1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2017-18 Linaro Limited
12 #include <linux/reboot-mode.h>
31 	struct pm8916_pon *pon = container_of  in pm8916_reboot_mode_write()  local
35 	ret = regmap_update_bits(pon->regmap,  in pm8916_reboot_mode_write()
36 				 pon->baseaddr + PON_SOFT_RB_SPARE,  in pm8916_reboot_mode_write()
37 				 GENMASK(7, pon->reason_shift),  in pm8916_reboot_mode_write()
38 				 magic << pon->reason_shift);  in pm8916_reboot_mode_write()
40 		dev_err(pon->dev, "update reboot mode bits failed\n");  in pm8916_reboot_mode_write()
47 	struct pm8916_pon *pon;  in pm8916_pon_probe()  local
50 	pon = devm_kzalloc(&pdev->dev, sizeof(*pon), GFP_KERNEL);  in pm8916_pon_probe()
51 	if (!pon)  in pm8916_pon_probe()
52 		return -ENOMEM;  in pm8916_pon_probe()
54 	pon->dev = &pdev->dev;  in pm8916_pon_probe()
56 	pon->regmap = dev_get_regmap(pdev->dev.parent, NULL);  in pm8916_pon_probe()
57 	if (!pon->regmap) {  in pm8916_pon_probe()
58 		dev_err(&pdev->dev, "failed to locate regmap\n");  in pm8916_pon_probe()
59 		return -ENODEV;  in pm8916_pon_probe()
62 	error = of_property_read_u32(pdev->dev.of_node, "reg",  in pm8916_pon_probe()
63 				     &pon->baseaddr);  in pm8916_pon_probe()
67 	pon->reboot_mode.dev = &pdev->dev;  in pm8916_pon_probe()
68 	pon->reason_shift = (long)of_device_get_match_data(&pdev->dev);  in pm8916_pon_probe()
69 	pon->reboot_mode.write = pm8916_reboot_mode_write;  in pm8916_pon_probe()
70 	error = devm_reboot_mode_register(&pdev->dev, &pon->reboot_mode);  in pm8916_pon_probe()
72 		dev_err(&pdev->dev, "can't register reboot mode\n");  in pm8916_pon_probe()
76 	platform_set_drvdata(pdev, pon);  in pm8916_pon_probe()
78 	return devm_of_platform_populate(&pdev->dev);  in pm8916_pon_probe()
82 	{ .compatible = "qcom,pm8916-pon", .data = (void *)GEN1_REASON_SHIFT },
83 	{ .compatible = "qcom,pms405-pon", .data = (void *)GEN1_REASON_SHIFT },
84 	{ .compatible = "qcom,pm8998-pon", .data = (void *)GEN2_REASON_SHIFT },
85 	{ .compatible = "qcom,pmk8350-pon", .data = (void *)GEN2_REASON_SHIFT },
93 		.name = "pm8916-pon",
99 MODULE_DESCRIPTION("pm8916 Power On driver");