Merge branch 'master' of git://git.denx.de/u-boot-usb

device: expose the functions used to remove and unbind children of a device

Also add a 'drv' parameter to filter the children to remove/unbind.
Exporting those functions is a preparatory work for th

device: expose the functions used to remove and unbind children of a device

Also add a 'drv' parameter to filter the children to remove/unbind.
Exporting those functions is a preparatory work for the addition of the
bind/unbind commands.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>

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SPDX: Convert all of our single license tags to Linux Kernel style

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So

SPDX: Convert all of our single license tags to Linux Kernel style

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>

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Merge git://git.denx.de/u-boot-x86

dm: core: Add DM_FLAG_OS_PREPARE flag

This new flag can be added to DM device drivers, which need to do some
final configuration before U-Boot exits and the OS (e.g. Linux) is
started. The remove fu

dm: core: Add DM_FLAG_OS_PREPARE flag

This new flag can be added to DM device drivers, which need to do some
final configuration before U-Boot exits and the OS (e.g. Linux) is
started. The remove functions of those drivers will get called at
this stage to do these last-stage configuration steps.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>

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Merge git://git.denx.de/u-boot-dm

dm: core: Add dm_remove_devices_flags() and hook it into device_remove()

The new function dm_remove_devices_flags() is intented for driver specific
last-stage cleanup operations before the OS is sta

dm: core: Add dm_remove_devices_flags() and hook it into device_remove()

The new function dm_remove_devices_flags() is intented for driver specific
last-stage cleanup operations before the OS is started. This patch adds
this functionality and hooks it into the common device_remove()
function.

Drivers wanting to use this feature for some last-stage removal calls,
need to add one of the DM_REMOVE_xx flags to their driver .flags.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>

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dm: core: Add flags parameter to device_remove()

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 "n

dm: core: Add flags parameter to device_remove()

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 <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>

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Merge git://git.denx.de/u-boot-dm

dm: core: Rename DM_NAME_ALLOCED to DM_FLAG_NAME_ALLOCED

This is a flag. Adjust the name to be consistent with the other flags.

Signed-off-by: Simon Glass <sjg@chromium.org>

Merge branch 'master' of git://git.denx.de/u-boot

Merge git://git.denx.de/u-boot-dm

dm: core: Allow device names to be freed automatically

Some devices have a name that is stored in allocated memory. At present
there is no mechanism to free this memory when the device is unbound.

dm: core: Allow device names to be freed automatically

Some devices have a name that is stored in allocated memory. At present
there is no mechanism to free this memory when the device is unbound.

Add a device flag to track whether a name is allocated and a function to
add the flag. Free the memory when the device is unbound.

Signed-off-by: Simon Glass <sjg@chromium.org>

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Revert "dm: Export device_remove_children / device_unbind_children"

This reverts commit bb52b367f6ca4a3a918e77737f4ff6a1089912d9.

Signed-off-by: Simon Glass <sjg@chromium.org>

Merge git://git.denx.de/u-boot-dm

devres: introduce Devres (Managed Device Resource) framework

In U-Boot's driver model, memory is basically allocated and freed
in the core framework. So, low level drivers generally only have
to sp

devres: introduce Devres (Managed Device Resource) framework

In U-Boot's driver model, memory is basically allocated and freed
in the core framework. So, low level drivers generally only have
to specify the size of needed memory with .priv_auto_alloc_size,
.platdata_auto_alloc_size, etc. Nevertheless, some drivers still
need to allocate/free memory on their own in case they cannot
statically know the necessary memory size. So, I believe it is
reasonable enough to port Devres into U-boot.

Devres, which originates in Linux, manages device resources for each
device and automatically releases them on driver detach. With devres,
device resources are guaranteed to be freed whether initialization
fails half-way or the device gets detached.

The basic idea is totally the same to that of Linux, but I tweaked
it a bit so that it fits in U-Boot's driver model.

In U-Boot, drivers are activated in two steps: binding and probing.
Binding puts a driver and a device together. It is just data
manipulation on the system memory, so nothing has happened on the
hardware device at this moment. When the device is really used, it
is probed. Probing initializes the real hardware device to make it
really ready for use.

So, the resources acquired during the probing process must be freed
when the device is removed. Likewise, what has been allocated in
binding should be released when the device is unbound. The struct
devres has a member "probe" to remember when the resource was
allocated.

CONFIG_DEBUG_DEVRES is also supported for easier debugging.
If enabled, debug messages are printed each time a resource is
allocated/freed.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Simon Glass <sjg@chromium.org>

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dm: add DM_FLAG_BOUND flag

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 introduce

dm: add DM_FLAG_BOUND flag

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>

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dm: Export device_remove_children / device_unbind_children

These functions are useful to remove all children from an usb bus before
rescanning the bus. Give them a better name and export them.

Sign

dm: Export device_remove_children / device_unbind_children

These functions are useful to remove all children from an usb bus before
rescanning the bus. Give them a better name and export them.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Simon Glass <sjg@chromium.org>

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Merge branch 'u-boot/master' into 'u-boot-arm/master'

Merge branch 'master' of git://git.denx.de/u-boot-dm

dm: core: Extend struct udevice by '.uclass_platdata' field.

This commit adds 'uclass_platdata' field to 'struct udevice', which
can be automatically allocated at bind. The allocation size is define

dm: core: Extend struct udevice by '.uclass_platdata' field.

This commit adds 'uclass_platdata' field to 'struct udevice', which
can be automatically allocated at bind. The allocation size is defined
in 'struct uclass_driver' as 'per_device_platdata_auto_alloc_size'.

New device's flag is added: DM_FLAG_ALLOC_UCLASS_PDATA, which is used
for memory freeing at device unbind method.

As for other udevice's fields, a complementary function is added:
- dev_get_uclass_platdata()

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>

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dm: core: Convert driver_bind() to use const

The driver is not modified by driver model, so update driver_bind() to
recognise that.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek

dm: core: Convert driver_bind() to use const

The driver is not modified by driver model, so update driver_bind() to
recognise that.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>

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Merge remote-tracking branch 'u-boot/master' into 'u-boot-arm/master'

Merge branch 'master' of git://git.denx.de/u-boot

Merge branch 'master' of git://git.denx.de/u-boot-dm