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()
75 	struct gemini_powercon *gpw = data->cb_data;  in gemini_poweroff()
78 	dev_crit(gpw->dev, "Gemini power off\n");  in gemini_poweroff()
79 	val = readl(gpw->base + GEMINI_PWC_CTRLREG);  in gemini_poweroff()
81 	writel(val, gpw->base + GEMINI_PWC_CTRLREG);  in gemini_poweroff()
85 	writel(val, gpw->base + GEMINI_PWC_CTRLREG);  in gemini_poweroff()
92 	struct device *dev = &pdev->dev;  in gemini_poweroff_probe()
100 		return -ENOMEM;  in gemini_poweroff_probe()
102 	gpw->base = devm_platform_ioremap_resource(pdev, 0);  in gemini_poweroff_probe()
103 	if (IS_ERR(gpw->base))  in gemini_poweroff_probe()
104 		return PTR_ERR(gpw->base);  in gemini_poweroff_probe()
110 	gpw->dev = dev;  in gemini_poweroff_probe()
112 	val = readl(gpw->base + GEMINI_PWC_IDREG);  in gemini_poweroff_probe()
117 		return -ENODEV;  in gemini_poweroff_probe()
121 	 * Enable the power controller. This is crucial on Gemini  in gemini_poweroff_probe()
126 	val = readl(gpw->base + GEMINI_PWC_CTRLREG);  in gemini_poweroff_probe()
128 	writel(val, gpw->base + GEMINI_PWC_CTRLREG);  in gemini_poweroff_probe()
131 	val = readl(gpw->base + GEMINI_PWC_CTRLREG);  in gemini_poweroff_probe()
133 	writel(val, gpw->base + GEMINI_PWC_CTRLREG);  in gemini_poweroff_probe()
136 	val = readl(gpw->base + GEMINI_PWC_STATREG);  in gemini_poweroff_probe()
138 		val = readl(gpw->base + GEMINI_PWC_STATREG);  in gemini_poweroff_probe()
141 	val = readl(gpw->base + GEMINI_PWC_CTRLREG);  in gemini_poweroff_probe()
143 	writel(val, gpw->base + GEMINI_PWC_CTRLREG);  in gemini_poweroff_probe()
156 	dev_info(dev, "Gemini poweroff driver registered\n");  in gemini_poweroff_probe()
163 		.compatible = "cortina,gemini-power-controller",
171 		.name = "gemini-poweroff",