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common: Move autoprobe out to board init

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Rather than doing autoprobe within the driver model code, move it out to
the board-init code. This makes it clear that it is a separate step from
binding devices.

For now this is always done twice, before and after relocation, but we
should discuss whether it might be possible to drop the post-relocation
probe.

For boards with SPL, the autoprobe is still done there as well.

Note that with this change, autoprobe happens after the
EVT_DM_POST_INIT_R/F events are sent, rather than before.

Link: https://lore.kernel.org/u-boot/20240626235717.272219-1-marex@denx.de/

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2024-11-20 08:36:41 -07:00
committed by Tom Rini
parent 21dd873572
commit 6995f2c8be
6 changed files with 62 additions and 2 deletions
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22
drivers/core/root.c
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@@ -288,6 +288,15 @@ void *dm_priv_to_rw(void *priv)
}
#endif
/**
* dm_probe_devices() - Check whether to probe a device and all children
*
* Probes the device if DM_FLAG_PROBE_AFTER_BIND is enabled for it. Then scans
* all its children recursively to do the same.
*
* @dev: Device to (maybe) probe
* Return 0 if OK, -ve on error
*/
static int dm_probe_devices(struct udevice *dev)
{
struct udevice *child;
@@ -306,6 +315,17 @@ static int dm_probe_devices(struct udevice *dev)
return 0;
}
int dm_autoprobe(void)
{
int ret;
ret = dm_probe_devices(gd->dm_root);
if (ret)
return log_msg_ret("pro", ret);
return 0;
}
/**
* dm_scan() - Scan tables to bind devices
*
@@ -338,7 +358,7 @@ static int dm_scan(bool pre_reloc_only)
if (ret)
return ret;
return dm_probe_devices(gd->dm_root);
return 0;
}
int dm_init_and_scan(bool pre_reloc_only)