[U-Boot] [PATCH 1/2] dm: device: Request next sequence number
Thomas Fitzsimmons
fitzsim at fitzsim.org
Fri Sep 6 11:51:18 UTC 2019
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 at fitzsim.org>
Cc: Bin Meng <bmeng.cn at gmail.com>
Cc: Simon Glass <sjg at chromium.org>
---
drivers/core/device.c | 5 +++++
drivers/core/uclass.c | 4 +++-
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/core/device.c b/drivers/core/device.c
index 474c1642ee..ca8be208a9 100644
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -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);
}
diff --git a/drivers/core/uclass.c b/drivers/core/uclass.c
index b33296542f..d7aedac351 100644
--- a/drivers/core/uclass.c
+++ b/drivers/core/uclass.c
@@ -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;
--
2.23.0
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