We don't have the live-tree version of fdtdec_get_pci_vendev().
This adds the API.
Signed-off-by: Bin Meng <bmeng...@gmail.com>
Reviewed-by: Simon Glass <s...@chromium.org>
---
Changes in v3: None
Changes in v2: None
drivers/core/ofnode.c | 36 ++++++++++++++++++++++++++++++++++++
include/dm/ofnode.h | 13 +++++++++++++
2 files changed, 49 insertions(+)
diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c
index 2937539..0cfb0fb 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))
diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h
index cd08a7e..ab36b74 100644
--- a/include/dm/ofnode.h
+++ b/include/dm/ofnode.h
@@ -586,6 +586,19 @@ int ofnode_read_pci_addr(ofnode node, enum fdt_pci_space
type,
const char *propname, struct fdt_pci_addr *addr);
/**
+ * ofnode_read_pci_vendev() - look up PCI vendor and device id
+ *
+ * Look at the compatible property of a device node that represents a PCI
+ * device and extract pci vendor id and device id from it.
+ *
+ * @param node node to examine
+ * @param vendor vendor id of the pci device
+ * @param device device id of the pci device
+ * @return 0 if ok, negative on error
+ */
+int ofnode_read_pci_vendev(ofnode node, u16 *vendor, u16 *device);
+
+/**
* ofnode_read_addr_cells() - Get the number of address cells for a node
*
* This walks back up the tree to find the closest #address-cells property
--
2.7.4
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