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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Drop the log buffer

This does not appear to be used by any boards. Before introducing a new
log system, remove this old one.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bme

Drop the log buffer

This does not appear to be used by any boards. Before introducing a new
log system, remove this old one.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

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Merge branch 'master' of git://git.denx.de/u-boot-i2c

i2c: Finish dropping use of CONFIG_I2C_HARD

Drop use of this long-deprecated option.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>

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

Signed-off-by: Stefano Babic <sbabic@denx.de>

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

stdio: Correct numbering logic in stdio_probe_device()

The current code assumes that the devices are ordered corresponding to
their alias value. But (for example) video1 can come before video0 in th

stdio: Correct numbering logic in stdio_probe_device()

The current code assumes that the devices are ordered corresponding to
their alias value. But (for example) video1 can come before video0 in the
device tree.

Correct this, by always looking for device 0 first. After that we can fall
back to finding the first available device.

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

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stdio: Correct code style nits

Fix a few code style nits in stdio_get_by_name().

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

Convert CONFIG_SYS_STDIO_DEREGISTER to Kconfig

This converts the following to Kconfig:
CONFIG_SYS_STDIO_DEREGISTER

This option should never be enabled in SPL, so use
CONFIG_IS_ENABLED(SYS_STDIO_

Convert CONFIG_SYS_STDIO_DEREGISTER to Kconfig

This converts the following to Kconfig:
CONFIG_SYS_STDIO_DEREGISTER

This option should never be enabled in SPL, so use
CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER) when checking the option.

Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Re-sync]
Signed-off-by: Tom Rini <trini@konsulko.com>

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Merge branch 'master' of git://git.denx.de/u-boot-x86

dm: stdio: Allow lazy probing of video devices

At present all video devices are probed on start-up. It would be better to
probe a device only when it is needed. This can happen if it is referenced
i

dm: stdio: Allow lazy probing of video devices

At present all video devices are probed on start-up. It would be better to
probe a device only when it is needed. This can happen if it is referenced
in the stdout environment variable, for example.

Add support for this by searching for a suitable device when needed, probing
it, and finding the stdio device it creates.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

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stdio: Correct a build error with driver model

When driver model is used for video but not for the keyboard, a compiler
warnings is produced. Fix it.

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

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

dm: stdio: video: Plumb the video uclass into stdio

Register video drivers with stdio so that they can be used for text output.
This needs to be done explicitly for now. At some point we should be a

dm: stdio: video: Plumb the video uclass into stdio

Register video drivers with stdio so that they can be used for text output.
This needs to be done explicitly for now. At some point we should be able to
convert stdio itself to driver model and avoid this step.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>

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dm: stdio: Plumb in the new keyboard uclass

When driver model is used for keyboards we must scan the available keyboards
and register them with stdio. Add code to do this.

At some point (once LCD/v

dm: stdio: Plumb in the new keyboard uclass

When driver model is used for keyboards we must scan the available keyboards
and register them with stdio. Add code to do this.

At some point (once LCD/video is converted) we should be able to convert
stdio to driver model and avoid these dual data structures.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

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

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

video: Drop DEV_FLAGS_SYSTEM flag

DEV_FLAGS_SYSTEM does not have any actual meaning, hence drop it.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

stdio: Fix memleak on stdio_deregister

stdio_register makes a malloc-ed copy of struct stdio_dev through stdio_clone,
free the malloc-ed memory on stdio_deregister.

Signed-off-by: Hans de Goede <hd

stdio: Fix memleak on stdio_deregister

stdio_register makes a malloc-ed copy of struct stdio_dev through stdio_clone,
free the malloc-ed memory on stdio_deregister.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>

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serial: make local functions static

Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>

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

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

stdio: Add force parameter to stdio_deregister

In some cases we really want to move forward with a deregister, add a force
parameter to allow this, and replace the dev with a nulldev in this case.

stdio: Add force parameter to stdio_deregister

In some cases we really want to move forward with a deregister, add a force
parameter to allow this, and replace the dev with a nulldev in this case.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>

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

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