1 // SPDX-License-Identifier: GPL-2.0
3  * Gemini power management controller
42 	val = readl(gpw->base + GEMINI_PWC_CTRLREG);  in gemini_powerbutton_interrupt()
44 	writel(val, gpw->base + GEMINI_PWC_CTRLREG);  in gemini_powerbutton_interrupt()
46 	val = readl(gpw->base + GEMINI_PWC_STATREG);  in gemini_powerbutton_interrupt()
55 		dev_info(gpw->dev, "infrared poweroff - ignored\n");  in gemini_powerbutton_interrupt()
58 		dev_info(gpw->dev, "RTC poweroff\n");  in gemini_powerbutton_interrupt()
62 		dev_info(gpw->dev, "poweroff button pressed\n");  in gemini_powerbutton_interrupt()
66 		dev_info(gpw->dev, "other power management IRQ\n");  in gemini_powerbutton_interrupt()
81 	dev_crit(gpw->dev, "Gemini power off\n");  in gemini_poweroff()
82 	val = readl(gpw->base + GEMINI_PWC_CTRLREG);  in gemini_poweroff()
84 	writel(val, gpw->base + GEMINI_PWC_CTRLREG);  in gemini_poweroff()
88 	writel(val, gpw->base + GEMINI_PWC_CTRLREG);  in gemini_poweroff()
93 	struct device *dev = &pdev->dev;  in gemini_poweroff_probe()
101 		return -ENOMEM;  in gemini_poweroff_probe()
103 	gpw->base = devm_platform_ioremap_resource(pdev, 0);  in gemini_poweroff_probe()
104 	if (IS_ERR(gpw->base))  in gemini_poweroff_probe()
105 		return PTR_ERR(gpw->base);  in gemini_poweroff_probe()
111 	gpw->dev = dev;  in gemini_poweroff_probe()
113 	val = readl(gpw->base + GEMINI_PWC_IDREG);  in gemini_poweroff_probe()
118 		return -ENODEV;  in gemini_poweroff_probe()
122 	 * Enable the power controller. This is crucial on Gemini  in gemini_poweroff_probe()
127 	val = readl(gpw->base + GEMINI_PWC_CTRLREG);  in gemini_poweroff_probe()
129 	writel(val, gpw->base + GEMINI_PWC_CTRLREG);  in gemini_poweroff_probe()
132 	val = readl(gpw->base + GEMINI_PWC_CTRLREG);  in gemini_poweroff_probe()
134 	writel(val, gpw->base + GEMINI_PWC_CTRLREG);  in gemini_poweroff_probe()
137 	val = readl(gpw->base + GEMINI_PWC_STATREG);  in gemini_poweroff_probe()
139 		val = readl(gpw->base + GEMINI_PWC_STATREG);  in gemini_poweroff_probe()
142 	val = readl(gpw->base + GEMINI_PWC_CTRLREG);  in gemini_poweroff_probe()
144 	writel(val, gpw->base + GEMINI_PWC_CTRLREG);  in gemini_poweroff_probe()
154 	dev_info(dev, "Gemini poweroff driver registered\n");  in gemini_poweroff_probe()
161 		.compatible = "cortina,gemini-power-controller",
169 		.name = "gemini-poweroff",