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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Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTR

We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added

Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTR

We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.

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

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

sandbox: Rename 'num-gpios' property to avoid dtc warning

At present dtc produces these warnings when compiling sandbox:

arch/sandbox/dts/test.dtb: Warning (gpios_property):
Could not get phandle

sandbox: Rename 'num-gpios' property to avoid dtc warning

At present dtc produces these warnings when compiling sandbox:

arch/sandbox/dts/test.dtb: Warning (gpios_property):
Could not get phandle node for /base-gpios:num-gpios(cell 0)
arch/sandbox/dts/test.dtb: Warning (gpios_property):
Missing property '#gpio-cells' in node /reset-ctl or bad phandle
(referred from /extra-gpios:num-gpios[0])

Both are due to it assuming that the 'num-gpios' property holds a phandle
pointing to a GPIO node.

To avoid these warnings, rename the sandbox property so that it does not
include the string 'gpios'.

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

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dm: gpio: sandbox: Use dev_read...() functions to access DT

Use the new dev_read...() functions to access the device tree, so that a
live tree can be used.

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

dm: gpio: sandbox: Use dev_read...() functions to access DT

Use the new dev_read...() functions to access the device tree, so that a
live tree can be used.

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

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dm: gpio: Refactor to prepare for live tree support

Move the main part of the GPIO request function into a separate function
so that it can be used by the live tree function when added. Update the
x

dm: gpio: Refactor to prepare for live tree support

Move the main part of the GPIO request function into a separate function
so that it can be used by the live tree function when added. Update the
xlate method to use a node reference.

Update all GPIO drivers to handle the modified xlate() method.

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

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

dm: core: Replace of_offset with accessor

At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree,

dm: core: Replace of_offset with accessor

At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree, which uses a node pointer instead, refactor existing code to
access this field through an inline function.

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

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

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

Merge branch 'master' of git://git.denx.de/u-boot-mpc85xx

dm: test: Add GPIO open drain tests

Add some tests for the new open drain setting feature of the GPIO
uclass, and extend the capabilities of the sandbox GPIO driver
accordingly.

Signed-off-by: Mari

dm: test: Add GPIO open drain tests

Add some tests for the new open drain setting feature of the GPIO
uclass, and extend the capabilities of the sandbox GPIO driver
accordingly.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: York Sun <york.sun@nxp.com>

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

dm: core: Add dev_get_uclass_priv() to access uclass private data

Add a convenience function to access the private data that a uclass stores
for each of its devices. Convert over most existing uses

dm: core: Add dev_get_uclass_priv() to access uclass private data

Add a convenience function to access the private data that a uclass stores
for each of its devices. Convert over most existing uses for consistency
and to provide an example for others.

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

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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

dm: gpio: Add better functions to request GPIOs

At present U-Boot sort-of supports the standard way of reading GPIOs from
device tree nodes, but the support is incomplete, a bit clunky and only
work

dm: gpio: Add better functions to request GPIOs

At present U-Boot sort-of supports the standard way of reading GPIOs from
device tree nodes, but the support is incomplete, a bit clunky and only
works for GPIO bindings where #gpio-cells is 2.

Add new functions to request GPIOs, taking full account of the device
tree binding. These permit requesting a GPIO with a simple call like:

gpio_request_by_name(dev, "cd-gpios", 0, &desc, GPIOD_IS_IN);

This will request the GPIO, looking at the device's node which might be
this, for example:

cd-gpios = <&gpio TEGRA_GPIO(B, 3) GPIO_ACTIVE_LOW>;

The GPIO will be set to input mode in this case and polarity will be
honoured by the GPIO calls.

It is also possible to request and free a list of GPIOs.

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

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

Fix a trivial conflict over adding <dm.h>

Conflicts:
arch/arm/cpu/armv7/omap3/board.c

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

dm: gpio: sandbox: Drop request()/free() in the driver

Now that the uclass supports gpio_request/free() there is no need for the
driver to implement it too. Drop this unnecessary code.

Signed-off-b

dm: gpio: sandbox: Drop request()/free() in the driver

Now that the uclass supports gpio_request/free() there is no need for the
driver to implement it too. Drop this unnecessary code.

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

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dm: gpio: sandbox: Implement the remove() method

This method frees memory so we must make sure to implement it.

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

dm: gpio: sandbox: Implement the get_function() method

Implement this method so that the 'gpio' command can do its job correctly.
For sandbox we only support input and output states for a gpio.

Sig

dm: gpio: sandbox: Implement the get_function() method

Implement this method so that the 'gpio' command can do its job correctly.
For sandbox we only support input and output states for a gpio.

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

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

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

Conflicts:
boards.cfg

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

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

dm: Rename struct device_id to udevice_id

It is best to avoid having any occurence of 'struct device' in driver
model, so rename to achieve this.

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