u-boot.git/include/dm/device.h, branch v2020.10

pci: Avoid a crash in device_is_on_pci_bus()

2020-07-17T06:32:24+00:00

This function cannot currently be called on the root node. Add a check
for this as well as a test.

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

core: extend struct driver_info to point to device

2020-07-10T04:00:29+00:00

Currently when creating an U_BOOT_DEVICE entry a struct driver_info
is declared, which contains the data needed to instantiate the device.
However, the actual device is created at runtime and there is no proper
way to get the device based on its struct driver_info.

This patch extends struct driver_info adding a pointer to udevice which
is populated during the bind process, allowing to generate a set of
functions to get the device based on its struct driver_info.

Signed-off-by: Walter Lozano 
Reviewed-by: Simon Glass

core: add support for U_BOOT_DRIVER_ALIAS

2020-07-10T00:57:22+00:00

Currently when using OF_PLATDATA the binding between devices and drivers
is done trying to match the compatible string in the node with a driver
name. However, usually a single driver supports multiple compatible strings
which causes that only devices which its compatible string matches a
driver name get bound.

To overcome this issue, this patch adds the U_BOOT_DRIVER_ALIAS macro,
which generates no code at all, but allows an easy way to declare driver
name aliases. Thanks to this, dtoc could be improve to look for the driver
name based on its alias when it populates the U_BOOT_DEVICE entry.

Signed-off-by: Walter Lozano 
Reviewed-by: Simon Glass

Merge tag 'dm-pull-10apr20-take2' of git://git.denx.de/u-boot-dm

2020-04-16T17:45:03+00:00

Functions for reading indexed values from device tree
Enhancements to 'dm' command
Log test enhancements and syslog driver
DM change to read parent ofdata before children
Minor fixes

dm: core: Add a way to skip powering down power domains

2020-04-16T14:07:58+00:00

When removing a device the power domains it uses are generally powered
off. But when we are trying to unbind all devices (e.g. for running tests)
we don't want to probe a device in the 'remove' path.

Add a new flag to skip this power-down step.

Signed-off-by: Simon Glass

dm: core: Add basic ACPI support

2020-04-16T06:36:28+00:00

ACPI (Advanced Configuration and Power Interface) is a standard for
specifying information about a platform. It is a little like device
tree but the bindings are part of the specification and it supports an
interpreted bytecode language.

Driver model does not use ACPI for U-Boot's configuration, but it is
convenient to have it support generation of ACPI tables for passing to
Linux, etc.

As a starting point, add an optional set of ACPI operations to each
device. Initially only a single operation is available, to obtain the
ACPI name for the device. More operations are added later.

Enable ACPI for sandbox to ensure build coverage and so that we can add
tests.

Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng 
Reviewed-by: Wolfgang Wallner 
Reviewed-by: Andy Shevchenko

dm: core: Add a flag for power domain control on device removal

2020-03-03T02:47:38+00:00

In various cases a power domain must stay enabled after device
removal when booting OS (i.e. serial debug console or display).
Add a flag to selectively skip switching off a power domain.

Fixes: 52edfed65de9 ("dm: core: device: switch off power domain after device removal")
Signed-off-by: Anatolij Gustschin 
Acked-by: Neil Armstrong 
Tested-by: Guillaume La Roque 
Reviewed-by: Simon Glass

dm: core: Drop the inclusion of linux/compat.h in dm.h

2020-02-06T04:48:22+00:00

Most files don't need this header and it pulls in quite of lots of stuff,
malloc() in particular. Drop it.

Signed-off-by: Simon Glass

dm: core: Create a new header file for 'compat' features

2020-02-06T02:33:46+00:00

At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.

Move the compatibility features into a separate header file.

Signed-off-by: Simon Glass

dm: core: Require users of devres to include the header

2020-02-06T02:33:46+00:00

At present devres.h is included in all files that include dm.h but few
make use of it. Also this pulls in linux/compat which adds several more
headers. Drop the automatic inclusion and require files to include devres
themselves. This provides a good indication of which files use devres.

Signed-off-by: Simon Glass 
Reviewed-by: Anatolij Gustschin