We currently use dm_scan_fdt_node() to bind devices. It is an internal function and it requires the caller to know whether we are pre- or post- relocation.
This requirement has become quite common in drivers, so the current function is not ideal.
Add a new function with fewer arguments, that does not require internal headers. This can be used directly as a post_bind() method if needed.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v2: - Add new patch to bring in dm_scan_fdt_dev()
drivers/core/root.c | 9 +++++++++ include/dm/device.h | 16 ++++++++++++++++ 2 files changed, 25 insertions(+)
diff --git a/drivers/core/root.c b/drivers/core/root.c index 95886ad..d850bd0 100644 --- a/drivers/core/root.c +++ b/drivers/core/root.c @@ -218,6 +218,15 @@ int dm_scan_fdt_node(struct udevice *parent, const void *blob, int offset, return ret; }
+int dm_scan_fdt_dev(struct udevice *dev) +{ + if (dev->of_offset == -1) + return 0; + + return dm_scan_fdt_node(dev, gd->fdt_blob, dev->of_offset, + gd->flags & GD_FLG_RELOC ? false : true); +} + int dm_scan_fdt(const void *blob, bool pre_reloc_only) { return dm_scan_fdt_node(gd->dm_root, blob, 0, pre_reloc_only); diff --git a/include/dm/device.h b/include/dm/device.h index f03bcd3..15c0564 100644 --- a/include/dm/device.h +++ b/include/dm/device.h @@ -593,6 +593,22 @@ static inline bool device_is_on_pci_bus(struct udevice *dev) #define device_foreach_child_safe(pos, next, parent) \ list_for_each_entry_safe(pos, next, &parent->child_head, sibling_node)
+/** + * dm_scan_fdt_dev() - Bind child device in a the device tree + * + * This handles device which have sub-nodes in the device tree. It scans all + * sub-nodes and binds drivers for each node where a driver can be found. + * + * If this is called prior to relocation, only pre-relocation devices will be + * bound (those marked with u-boot,dm-pre-reloc in the device tree, or where + * the driver has the DM_FLAG_PRE_RELOC flag set). Otherwise, all devices will + * be bound. + * + * @dev: Device to scan + * @return 0 if OK, -ve on error + */ +int dm_scan_fdt_dev(struct udevice *dev); + /* device resource management */ typedef void (*dr_release_t)(struct udevice *dev, void *res); typedef int (*dr_match_t)(struct udevice *dev, void *res, void *match_data);