^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * apple-properties.c - EFI device properties on Macs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (C) 2016 Lukas Wunner <lukas@wunner.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Properties are stored either as:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * u8 arrays which can be retrieved with device_property_read_u8_array() or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * booleans which can be queried with device_property_present().
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define pr_fmt(fmt) "apple-properties: " fmt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/memblock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/efi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/platform_data/x86/apple.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/property.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/ucs2_string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <asm/setup.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) static bool dump_properties __initdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) static int __init dump_properties_enable(char *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) dump_properties = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) __setup("dump_apple_properties", dump_properties_enable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct dev_header {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) u32 len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) u32 prop_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct efi_dev_path path[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) * followed by key/value pairs, each key and value preceded by u32 len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) * len includes itself, value may be empty (in which case its len is 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) struct properties_header {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) u32 len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) u32 version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) u32 dev_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) struct dev_header dev_header[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static void __init unmarshal_key_value_pairs(struct dev_header *dev_header,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct device *dev, const void *ptr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) struct property_entry entry[])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) for (i = 0; i < dev_header->prop_count; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) int remaining = dev_header->len - (ptr - (void *)dev_header);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) u32 key_len, val_len, entry_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) const u8 *entry_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) char *key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) if (sizeof(key_len) > remaining)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) key_len = *(typeof(key_len) *)ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) if (key_len + sizeof(val_len) > remaining ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) key_len < sizeof(key_len) + sizeof(efi_char16_t) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) *(efi_char16_t *)(ptr + sizeof(key_len)) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) dev_err(dev, "invalid property name len at %#zx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) ptr - (void *)dev_header);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) val_len = *(typeof(val_len) *)(ptr + key_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) if (key_len + val_len > remaining ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) val_len < sizeof(val_len)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) dev_err(dev, "invalid property val len at %#zx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) ptr - (void *)dev_header + key_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) /* 4 bytes to accommodate UTF-8 code points + null byte */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) key = kzalloc((key_len - sizeof(key_len)) * 4 + 1, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) if (!key) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) dev_err(dev, "cannot allocate property name\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) ucs2_as_utf8(key, ptr + sizeof(key_len),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) key_len - sizeof(key_len));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) entry_data = ptr + key_len + sizeof(val_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) entry_len = val_len - sizeof(val_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) if (entry_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) entry[i] = PROPERTY_ENTRY_U8_ARRAY_LEN(key, entry_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) entry_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) entry[i] = PROPERTY_ENTRY_BOOL(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) if (dump_properties) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) dev_info(dev, "property: %s\n", key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) print_hex_dump(KERN_INFO, pr_fmt(), DUMP_PREFIX_OFFSET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 16, 1, entry_data, entry_len, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) ptr += key_len + val_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) if (i != dev_header->prop_count) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) dev_err(dev, "got %d device properties, expected %u\n", i,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) dev_header->prop_count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) print_hex_dump(KERN_ERR, pr_fmt(), DUMP_PREFIX_OFFSET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 16, 1, dev_header, dev_header->len, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) dev_info(dev, "assigning %d device properties\n", i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) static int __init unmarshal_devices(struct properties_header *properties)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) size_t offset = offsetof(struct properties_header, dev_header[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) while (offset + sizeof(struct dev_header) < properties->len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) struct dev_header *dev_header = (void *)properties + offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) struct property_entry *entry = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) const struct efi_dev_path *ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) size_t len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) int ret, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) if (offset + dev_header->len > properties->len ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) dev_header->len <= sizeof(*dev_header)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) pr_err("invalid len in dev_header at %#zx\n", offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) ptr = dev_header->path;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) len = dev_header->len - sizeof(*dev_header);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) dev = efi_get_device_by_path(&ptr, &len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) if (IS_ERR(dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) pr_err("device path parse error %ld at %#zx:\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) PTR_ERR(dev), (void *)ptr - (void *)dev_header);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) print_hex_dump(KERN_ERR, pr_fmt(), DUMP_PREFIX_OFFSET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 16, 1, dev_header, dev_header->len, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) dev = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) goto skip_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) entry = kcalloc(dev_header->prop_count + 1, sizeof(*entry),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) if (!entry) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) dev_err(dev, "cannot allocate properties\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) goto skip_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) unmarshal_key_value_pairs(dev_header, dev, ptr, entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) if (!entry[0].name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) goto skip_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) ret = device_add_properties(dev, entry); /* makes deep copy */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) dev_err(dev, "error %d assigning properties\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) for (i = 0; entry[i].name; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) kfree(entry[i].name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) skip_device:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) kfree(entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) put_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) offset += dev_header->len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) static int __init map_properties(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) struct properties_header *properties;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) struct setup_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) u32 data_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) u64 pa_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) if (!x86_apple_machine)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) pa_data = boot_params.hdr.setup_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) while (pa_data) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) data = memremap(pa_data, sizeof(*data), MEMREMAP_WB);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) if (!data) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) pr_err("cannot map setup_data header\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) if (data->type != SETUP_APPLE_PROPERTIES) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) pa_data = data->next;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) memunmap(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) data_len = data->len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) memunmap(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) data = memremap(pa_data, sizeof(*data) + data_len, MEMREMAP_WB);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) if (!data) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) pr_err("cannot map setup_data payload\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) properties = (struct properties_header *)data->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) if (properties->version != 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) pr_err("unsupported version:\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) print_hex_dump(KERN_ERR, pr_fmt(), DUMP_PREFIX_OFFSET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 16, 1, properties, data_len, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) ret = -ENOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) } else if (properties->len != data_len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) pr_err("length mismatch, expected %u\n", data_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) print_hex_dump(KERN_ERR, pr_fmt(), DUMP_PREFIX_OFFSET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 16, 1, properties, data_len, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) ret = unmarshal_devices(properties);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) * Can only free the setup_data payload but not its header
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) * to avoid breaking the chain of ->next pointers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) data->len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) memunmap(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) memblock_free_late(pa_data + sizeof(*data), data_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) fs_initcall(map_properties);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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