u-boot.git/drivers/core/device.c, branch v2020.01-rc1

dm: core: Allow for not controlling the power-domain by DM framework

2019-10-15T14:40:03+00:00

In some remoteproc cases, enabling the power domain of the core will
start running the core. In such cases image should be loaded before
enabling the power domain. But the current DM framework enables the
power-domain by default during probe. This is causing the remotecore
to start and crash as there is no valid image loaded.

In order to avoid this introduce a DM flag that doesn't allow for
enabling/disabling the power-domain by DM framework.

Signed-off-by: Lokesh Vutla 
Reviewed-by: Simon Glass

core: device: use dev_power_domain_on

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

When multiple power domains attached to a device, need power on
them all, so use dev_power_domain_on to do that.

Signed-off-by: Peng Fan

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: Add a function to count the children of a device

2019-10-11T14:07:33+00:00

Add a function to count the available children of a device.

Signed-off-by: Lokesh Vutla

dm: core: Call ofdata_to_platdata() with of-platdata

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

At present this function is never called when of-platdata is enabled since
we never have a device tree. However, this function is responsible for
copying over the of-platdata, so we must call it. Otherwise the probe()
method would have to be used.

Correct this and fix the sandbox serial driver to not read from the device
tree and try to write to what is read-only platdata on some platforms.

Fixes: 396e343b3d (dm: core: Allow binding a device from a live tree)
Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng

dm: core: Decouple DM from DT

2019-09-02T15:38:42+00:00

Some of the DM functions depend on OF_CONTROL, which is incorrect.
DM and DT are orthogonal. Add macro guards around such functions to
avoid compiling them in when DM is enabled, while OF_CONTROL is not.

Signed-off-by: Marek Vasut 
Cc: Simon Glass

dm: device: make power domain calls optional

2019-07-24T19:54:08+00:00

Reduce power domain calls when CONFIG_POWER_DOMAIN is disabled.
With gcc v8.2, this change saves 104 bytes.

Signed-off-by: Anatolij Gustschin 
Reviewed-by: Peng Fan

dm: core: Call clk_set_defaults() during probe() only for a valid ofnode

2019-07-24T19:54:08+00:00

Without a valid ofnode, it's meaningless to call clk_set_defaults()
to process various properties.

Signed-off-by: Bin Meng 
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: Add a few more specific child-finding functions

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

Add two functions which can find a child device by uclass or by name.
The first is useful with Multi-Function-Devices (MFDs) to find one of a
particular type. The second is useful when only the name is known.

Signed-off-by: Simon Glass