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dm: add DM_FLAG_BOUND flag

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Currently, we only have DM_FLAG_ACTIVATED to indicate the device
status, but we still cannot know in which stage is in progress,
binding or probing.

This commit introduces a new flag, DM_FLAG_BOUND, which is set when
the device is really bound, and cleared when it is unbound.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Masahiro Yamada
2015-07-25 21:52:34 +09:00
committed by Simon Glass
parent f33017716e
commit aed1a4dd88
3 changed files with 8 additions and 0 deletions
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3
drivers/core/device-remove.c
View File

@@ -61,6 +61,9 @@ int device_unbind(struct udevice *dev)
if (dev->flags & DM_FLAG_ACTIVATED) if (dev->flags & DM_FLAG_ACTIVATED)
return -EINVAL; return -EINVAL;
if (!(dev->flags & DM_FLAG_BOUND))
return -EINVAL;
drv = dev->driver; drv = dev->driver;
assert(drv); assert(drv);

2
drivers/core/device.c
View File

@@ -132,6 +132,8 @@ int device_bind(struct udevice *parent, const struct driver *drv,
dm_dbg("Bound device %s to %s\n", dev->name, parent->name); dm_dbg("Bound device %s to %s\n", dev->name, parent->name);
*devp = dev; *devp = dev;
dev->flags |= DM_FLAG_BOUND;
return 0; return 0;
fail_child_post_bind: fail_child_post_bind:

3
include/dm/device.h
View File

@@ -36,6 +36,9 @@ struct driver_info;
/* Allocate driver private data on a DMA boundary */ /* Allocate driver private data on a DMA boundary */
#define DM_FLAG_ALLOC_PRIV_DMA (1 << 5) #define DM_FLAG_ALLOC_PRIV_DMA (1 << 5)
/* Device is bound */
#define DM_FLAG_BOUND (1 << 6)
/** /**
* struct udevice - An instance of a driver * struct udevice - An instance of a driver
* *