u-boot.git/drivers/core/uclass.c, branch v2020.01

dm: core: Update log method for uclass_find_device_by_seq

2019-10-27T19:01:43+00:00

Use log() insted of debug() for uclass_find_device_by_seq function,
since this print is very much and we can filter it out with log()
interface.

Signed-off-by: Kever Yang 
Reviewed-by: Simon Glass 
Move #define to top of file as per docs:
Signed-off-by: Simon Glass

dm: device: Request next sequence number

2019-10-15T14:40:02+00:00

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 
Cc: Bin Meng 
Cc: Simon Glass

dm: core: Correct the return value for uclass_find_first_device()

2019-10-08T05:57:38+00:00

This function returns -ENODEV when there is no device. This is
inconsistent with other functions, such as uclass_find_next_device(),
which returns 0.

Update it and tidy up the incorrect '-1' values in the comments.

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

dm: core: Drop a few early returns

2019-10-08T05:57:37+00:00

Two functions in this file return early for no good reason. Adjust the
code to match the standard DM style of returning 0 at the end of the
function on success.

Oddly enough this save 12 bytes of code size on ARM.

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

drivers: core: use strcmp when find device by name

2019-07-13T01:07:59+00:00

`if (!strncmp(dev->name, name, strlen(name)))` might find out
the wrong device, it might find out `dram_pll_ref_sel`, when name is
`dram_pll`. So use strcmp to avoid such issue.

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

dm: Add a No-op uclass

2019-07-05T12:19:41+00:00

This uclass is intended for devices that do not need any features from the
uclass, including binding children.
This will typically be used by devices that are used to bind child devices
but do not use dm_scan_fdt_dev() to do it. That is for example the case of
several USB wrappers that have 2 child devices (1 for device and 1 for
host) but bind only one at a any given time.

Signed-off-by: Jean-Jacques Hiblot 
Reviewed-by: Simon Glass

dm: device: fail uclass_find_first_device() if list_empty

2019-02-09T12:51:00+00:00

While uclass_find_device() fails with -ENODEV in case of list_empty
strangely uclass_find_first_device() returns 0.

Fix uclass_find_first_device() to also fail with -ENODEV instead.

Signed-off-by: Marcel Ziswiler 
Reviewed-by: Simon Glass

dm: device: Allow using uclass_find_device_by_seq() without OF_CONTROL

2018-12-10T05:05:32+00:00

If OF_CONTROL is not enabled and DM_SEQ_ALIAS is enabled, we must
assign an alias (requested sequence number) to devices that belongs to a
class with the DM_UC_FLAG_SEQ_ALIAS flag. Otherwise
uclass_find_device_by_seq() cannot be used to get/probe a device. In
particular i2c_get_chip_for_busnum() cannot be used.

Signed-off-by: Jean-Jacques Hiblot 
Reviewed-by: Simon Glass 
Reviewed-by: Heiko Schocher

dm: core: Export uclass_find_device_by_phandle()

2018-11-29T16:30:05+00:00

This function may be useful to code outside of the code driver-model
implementation. Export it and add a test.

Signed-off-by: Simon Glass

dm: uclass: Add uclass_next_device_err() to return a valid device

2018-11-16T21:51:55+00:00

Similarly to uclass_first_device_err(), add uclass_next_device_err()
which returns an error if there are no next devices in that uclass.

Signed-off-by: Patrice Chotard 
Reviewed-by: Simon Glass