drivers/acpi/acpi_apd.c

1 // SPDX-License-Identifier: GPL-2.0-only
12 #include <linux/clk-provider.h>
15 #include <linux/platform_data/clk-fch.h>
23  * struct apd_device_desc - a descriptor for apd device
26  * @properties: build-in properties of the device such as UART
48 	const struct apd_device_desc *dev_desc = pdata->dev_desc;  in acpi_apd_setup()
51 	if (dev_desc->fixed_clk_rate) {  in acpi_apd_setup()
52 		clk = clk_register_fixed_rate(&pdata->adev->dev,  in acpi_apd_setup()
53 					dev_name(&pdata->adev->dev),  in acpi_apd_setup()
54 					NULL, 0, dev_desc->fixed_clk_rate);  in acpi_apd_setup()
55 		clk_register_clkdev(clk, NULL, dev_name(&pdata->adev->dev));  in acpi_apd_setup()
56 		pdata->clk = clk;  in acpi_apd_setup()
66 	struct acpi_device *adev = pdata->adev;  in fch_misc_setup()
74 	clk_data = devm_kzalloc(&adev->dev, sizeof(*clk_data), GFP_KERNEL);  in fch_misc_setup()
76 		return -ENOMEM;  in fch_misc_setup()
81 		return -ENOENT;  in fch_misc_setup()
83 	if (!acpi_dev_get_property(adev, "clk-name", ACPI_TYPE_STRING, &obj)) {  in fch_misc_setup()
84 		clk_data->name = devm_kzalloc(&adev->dev, obj->string.length,  in fch_misc_setup()
86 		if (!clk_data->name)  in fch_misc_setup()
87 			return -ENOMEM;  in fch_misc_setup()
89 		strcpy(clk_data->name, obj->string.pointer);  in fch_misc_setup()
92 		clk_data->name = "mclk";  in fch_misc_setup()
96 		clk_data->base = devm_ioremap(&adev->dev, rentry->res->start,  in fch_misc_setup()
97 					      resource_size(rentry->res));  in fch_misc_setup()
100 	if (!clk_data->base)  in fch_misc_setup()
101 		return -ENOMEM;  in fch_misc_setup()
105 	clkdev = platform_device_register_data(&adev->dev, "clk-fch",  in fch_misc_setup()
122 	PROPERTY_ENTRY_U32("reg-io-width", 4),
123 	PROPERTY_ENTRY_U32("reg-shift", 2),
124 	PROPERTY_ENTRY_BOOL("snps,uart-16550-compatible"),
190 	const struct apd_device_desc *dev_desc = (void *)id->driver_data;  in acpi_apd_create_device()
202 		return -ENOMEM;  in acpi_apd_create_device()
204 	pdata->adev = adev;  in acpi_apd_create_device()
205 	pdata->dev_desc = dev_desc;  in acpi_apd_create_device()
207 	if (dev_desc->setup) {  in acpi_apd_create_device()
208 		ret = dev_desc->setup(pdata);  in acpi_apd_create_device()
213 	adev->driver_data = pdata;  in acpi_apd_create_device()
214 	pdev = acpi_create_platform_device(adev, dev_desc->properties);  in acpi_apd_create_device()
219 	adev->driver_data = NULL;  in acpi_apd_create_device()