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dm: device: Request next sequence number

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For CONFIG_OF_PRIOR_STAGE, in the absence of a device tree alias for a
given device, use the next request number for that type of device.
This allows aliases to be used when they're available, while still
allowing unaliased devices to be probed.

Signed-off-by: Thomas Fitzsimmons <fitzsim@fitzsim.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
This commit is contained in:
Thomas Fitzsimmons 2019-09-06 07:51:18 -04:00 committed by Simon Glass
parent d8206ff198
commit 7f3289bf6d
2 changed files with 8 additions and 1 deletions
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5
drivers/core/device.c
View File

@ -82,6 +82,11 @@ static int device_bind_common(struct udevice *parent, const struct driver *drv,
if (CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)) {
if (uc->uc_drv->name && ofnode_valid(node))
dev_read_alias_seq(dev, &dev->req_seq);
#if CONFIG_IS_ENABLED(OF_PRIOR_STAGE)
if (dev->req_seq == -1)
dev->req_seq =
uclass_find_next_free_req_seq(drv->id);
#endif
} else {
dev->req_seq = uclass_find_next_free_req_seq(drv->id);
}

4
drivers/core/uclass.c
View File

@ -269,7 +269,9 @@ int uclass_find_device_by_name(enum uclass_id id, const char *name,
return -ENODEV;
}
#if !CONFIG_IS_ENABLED(OF_CONTROL) || CONFIG_IS_ENABLED(OF_PLATDATA)
#if !CONFIG_IS_ENABLED(OF_CONTROL) || \
CONFIG_IS_ENABLED(OF_PLATDATA) || \
CONFIG_IS_ENABLED(OF_PRIOR_STAGE)
int uclass_find_next_free_req_seq(enum uclass_id id)
{
struct uclass *uc;