28 	struct rtc_device *rtc = attr->private;  in rtc_nvram_read()  local
32 	return nvmem_device_read(rtc->nvmem, off, count, buf);  in rtc_nvram_read()
40 	struct rtc_device *rtc = attr->private;  in rtc_nvram_write()  local
44 	return nvmem_device_write(rtc->nvmem, off, count, buf);  in rtc_nvram_write()
47 static int rtc_nvram_register(struct rtc_device *rtc, size_t size)  in rtc_nvram_register()  argument
51 	rtc->nvram = devm_kzalloc(rtc->dev.parent,  in rtc_nvram_register()
54 	if (!rtc->nvram)  in rtc_nvram_register()
57 	rtc->nvram->attr.name = "nvram";  in rtc_nvram_register()
58 	rtc->nvram->attr.mode = 0644;  in rtc_nvram_register()
59 	rtc->nvram->private = rtc;  in rtc_nvram_register()
61 	sysfs_bin_attr_init(rtc->nvram);  in rtc_nvram_register()
63 	rtc->nvram->read = rtc_nvram_read;  in rtc_nvram_register()
64 	rtc->nvram->write = rtc_nvram_write;  in rtc_nvram_register()
65 	rtc->nvram->size = size;  in rtc_nvram_register()
67 	err = sysfs_create_bin_file(&rtc->dev.parent->kobj,  in rtc_nvram_register()
68 				    rtc->nvram);  in rtc_nvram_register()
70 		devm_kfree(rtc->dev.parent, rtc->nvram);  in rtc_nvram_register()
71 		rtc->nvram = NULL;  in rtc_nvram_register()
77 static void rtc_nvram_unregister(struct rtc_device *rtc)  in rtc_nvram_unregister()  argument
79 	sysfs_remove_bin_file(&rtc->dev.parent->kobj, rtc->nvram);  in rtc_nvram_unregister()
85 int rtc_nvmem_register(struct rtc_device *rtc,  in rtc_nvmem_register()  argument
88 	if (!IS_ERR_OR_NULL(rtc->nvmem))  in rtc_nvmem_register()
94 	nvmem_config->dev = rtc->dev.parent;  in rtc_nvmem_register()
95 	nvmem_config->owner = rtc->owner;  in rtc_nvmem_register()
96 	rtc->nvmem = nvmem_register(nvmem_config);  in rtc_nvmem_register()
97 	if (IS_ERR(rtc->nvmem))  in rtc_nvmem_register()
98 		return PTR_ERR(rtc->nvmem);  in rtc_nvmem_register()
101 	if (rtc->nvram_old_abi)  in rtc_nvmem_register()
102 		rtc_nvram_register(rtc, nvmem_config->size);  in rtc_nvmem_register()
108 void rtc_nvmem_unregister(struct rtc_device *rtc)  in rtc_nvmem_unregister()  argument
110 	if (IS_ERR_OR_NULL(rtc->nvmem))  in rtc_nvmem_unregister()
114 	if (rtc->nvram)  in rtc_nvmem_unregister()
115 		rtc_nvram_unregister(rtc);  in rtc_nvmem_unregister()
117 	nvmem_unregister(rtc->nvmem);  in rtc_nvmem_unregister()