u-boot.git/drivers/core/uclass.c, branch v2018.01

dm: core: Add uclass_first/next_device_check()

2017-07-11T16:08:19+00:00

Sometimes it is useful to iterate through all devices in a uclass and
skip over those which do not work correctly (e.g fail to probe). Add two
new functions to provide this feature.

The caller must check the return value each time to make sure that the
device is valid. But the device pointer is always returned.

Signed-off-by: Simon Glass

dm: core: Clarify uclass_first/next_device() comments

2017-07-11T16:08:19+00:00

These are not as clear as they could be. Tidy them up a bit. Also fix a
tiny code-style nit.

Signed-off-by: Simon Glass

dm: core: Update uclass_find_device_by_phandle() for livetree

2017-06-01T13:03:09+00:00

Adjust this function to work with livetree.

Signed-off-by: Simon Glass

dm: core: Add a way to find a device by ofnode

2017-06-01T13:03:08+00:00

Add a function which looks up a device by its node (either in live tree
or flat tree).

Signed-off-by: Simon Glass

core/uclass: Print name of device in uclass_find_device_by_seq()

2017-04-13T20:44:49+00:00

uclass_find_device_by_seq() prints seq and req_seq when debugging is
enabled, but this information is not very useful by itself. Add the
name of he driver to this information. This improves debugging as it
shows which devices are being considered.

Signed-off-by: Alexandru Gagniuc 
Acked-by: Simon Glass

dm: core: Add flags parameter to device_remove()

2017-04-05T02:15:10+00:00

This patch adds the flags parameter to device_remove() and changes all
calls to this function to provide the default value of DM_REMOVE_NORMAL
for "normal" device removal.

This is in preparation for the driver specific pre-OS (e.g. DMA
cancelling) remove support.

Signed-off-by: Stefan Roese 
Cc: Simon Glass 
Acked-by: Simon Glass

dm: core: Replace of_offset with accessor

2017-02-08T13:12:14+00:00

At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree, which uses a node pointer instead, refactor existing code to
access this field through an inline function.

Signed-off-by: Simon Glass

dm: core: Add a function to get a uclass name

2016-10-11T03:55:33+00:00

It is useful in debug() statements to display the name of the uclass for a
device. Add a simple function to provide this.

Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng

dm: core: Add a way to find a device by its driver

2016-07-26T02:46:43+00:00

Some SoCs have a single clock device. Provide a way to find it given its
driver name. This is handled by the linker so will fail if the name is not
found, avoiding strange errors when names change and do not match. It is
also faster than a string comparison.

Signed-off-by: Simon Glass

dm: core: Add uclass_first_device_err() to return a valid device

2016-03-14T21:34:50+00:00

A common pattern is to call uclass_first_device() and then check if it
actually returns a device. Add a new function which does this, returning
an error if there are no devices in that uclass.

Signed-off-by: Simon Glass