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author | Bin Meng <bmeng.cn@gmail.com> | 2018-08-03 11:14:35 +0300 |
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committer | Simon Glass <sjg@chromium.org> | 2018-08-08 14:49:31 +0300 |
commit | 7b9cbaddd559830426443340fe4c7e1eacfec57d (patch) | |
tree | 6026628e313d0f3782a6a2b8d25240c0a9382abb /drivers | |
parent | d494131bc6a709a0fc0b12bf6a975af3de27a6e8 (diff) | |
download | u-boot-7b9cbaddd559830426443340fe4c7e1eacfec57d.tar.xz |
dm: core: Add ofnode function to read PCI vendor and device id
We don't have the live-tree version of fdtdec_get_pci_vendev().
This adds the API.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/core/ofnode.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c index 29375397e0..0cfb0fbabb 100644 --- a/drivers/core/ofnode.c +++ b/drivers/core/ofnode.c @@ -623,6 +623,42 @@ fail: return ret; } +int ofnode_read_pci_vendev(ofnode node, u16 *vendor, u16 *device) +{ + const char *list, *end; + int len; + + list = ofnode_get_property(node, "compatible", &len); + if (!list) + return -ENOENT; + + end = list + len; + while (list < end) { + len = strlen(list); + if (len >= strlen("pciVVVV,DDDD")) { + char *s = strstr(list, "pci"); + + /* + * check if the string is something like pciVVVV,DDDD.RR + * or just pciVVVV,DDDD + */ + if (s && s[7] == ',' && + (s[12] == '.' || s[12] == 0)) { + s += 3; + *vendor = simple_strtol(s, NULL, 16); + + s += 5; + *device = simple_strtol(s, NULL, 16); + + return 0; + } + } + list += (len + 1); + } + + return -ENOENT; +} + int ofnode_read_addr_cells(ofnode node) { if (ofnode_is_np(node)) |