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

i2c: lpc32xx: Force consistent bus numbering

Normally, this would probably be done by adding devicetree aliases
to the main dtsi file for the lpc32xx and using bus->req_seq instead.

Since we want t

i2c: lpc32xx: Force consistent bus numbering

Normally, this would probably be done by adding devicetree aliases
to the main dtsi file for the lpc32xx and using bus->req_seq instead.

Since we want to have consistent i2c numbering, we cannot force the
bus->req_seq because. If for instance we have 3 buses numbered
from 0 to 2 with i2c0 enabled, i2c1 disabled and i2c2 enabled;
i2c2 can be selected using 'i2c dev 1' and 'i2c dev 2' commands
because a bus can be probed using req_seq or seq interchangeably.

Signed-off-by: Liam Beguin <lbeguin@tycoint.com>
Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>

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i2c: lpc32xx: Move definitions to header file

Since the lpc32xx i2c driver does not yet support the devicetree bindings,
this structure is also needed by the board file as the hardware description
i

i2c: lpc32xx: Move definitions to header file

Since the lpc32xx i2c driver does not yet support the devicetree bindings,
this structure is also needed by the board file as the hardware description
is done there.

Signed-off-by: Liam Beguin <lbeguin@tycoint.com>
Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>

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i2c: lpc32xx: Remove note for DM conversation

Removed note in the LPC32xx I2C driver for DM conversation.

Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>

i2c: lpc32xx: Add DM for lpc32xx I2C

Adding DM specific wrapper functions and definitions.

Signed-off-by: Liam Beguin <lbeguin@tycoint.com>
Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>

i2c: lpc32xx: Factor out i2c_adapter parameter

This is part of the prep work for the migration to the driver model.
It will enable the driver to support DM and non-DM configurations
using the same f

i2c: lpc32xx: Factor out i2c_adapter parameter

This is part of the prep work for the migration to the driver model.
It will enable the driver to support DM and non-DM configurations
using the same functions.

Signed-off-by: Liam Beguin <lbeguin@tycoint.com>
Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>

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i2c: lpc32xx: Prepare compatibility functions

This is part of the prep work for the migration to the driver model.

Signed-off-by: Liam Beguin <lbeguin@tycoint.com>
Signed-off-by: Sylvain Lemieux <s

i2c: lpc32xx: Prepare compatibility functions

This is part of the prep work for the migration to the driver model.

Signed-off-by: Liam Beguin <lbeguin@tycoint.com>
Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>

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i2c: lpc32xx: Rename probe function

This is part of the prep work for the migration to the driver model.
What used to be the probe function is now called probe_chip.

Signed-off-by: Liam Beguin <lbe

i2c: lpc32xx: Rename probe function

This is part of the prep work for the migration to the driver model.
What used to be the probe function is now called probe_chip.

Signed-off-by: Liam Beguin <lbeguin@tycoint.com>
Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>

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

Merge git://www.denx.de/git/u-boot-i2c

dm: i2c: Add a note to I2C drivers which need conversion

Maintainers need to be notified more directly of the need to convert these
drivers. Add a note to the top each affected file.

Signed-off-by:

dm: i2c: Add a note to I2C drivers which need conversion

Maintainers need to be notified more directly of the need to convert these
drivers. Add a note to the top each affected file.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>

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treewide: replace #include <asm/errno.h> with <linux/errno.h>

Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have
the same content. (both just wrap <asm-generic/errno.h>)

Replace

treewide: replace #include <asm/errno.h> with <linux/errno.h>

Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have
the same content. (both just wrap <asm-generic/errno.h>)

Replace all include directives for <asm/errno.h> with <linux/errno.h>.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
[trini: Fixup include/clk.]
Signed-off-by: Tom Rini <trini@konsulko.com>

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i2c: lpc32xx: correct sanity check for requested bus speed

LPC32xx has 3 I2C bus controllers, 2 of them are used as generic ones
and their parent clock is HCLK and CLK_HI/CLK_LO registers are 10 bit

i2c: lpc32xx: correct sanity check for requested bus speed

LPC32xx has 3 I2C bus controllers, 2 of them are used as generic ones
and their parent clock is HCLK and CLK_HI/CLK_LO registers are 10 bit
wide. This means that if HCLK is 104MHz, then minimal configurable I2C
clock speed is about 51KHz.

Only USB OTG I2C bus controller CLK registers are 8 bit wide, thus in
assumption that peripheral clock is 13MHz it allows to set the minimal
bus speed about 25.5KHz.

Check for negative half clock value is removed since it is always false.

The change fixes the following problem for I2C busses 0 and 1:

=> i2c dev 0
Setting bus to 0
=> i2c speed 100000
Setting bus speed to 100000 Hz
Failure changing bus speed (-22)

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Tested-by: Sylvain Lemieux <slemieux@tycoint.com>

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i2c: lpc32xx: add support for OTG I2C

Updated the LPC32xx I2C driver to support
the OTG I2C that is part of the USB module.

Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
Acked-by: Marek Vas

i2c: lpc32xx: add support for OTG I2C

Updated the LPC32xx I2C driver to support
the OTG I2C that is part of the USB module.

Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>
Acked-by: Marek Vasut <marex@denx.de>

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i2c: lpc32xx: fix write timeout

Fix a condition that generate watchdog timeout inside "lpc32xx_i2c_write" when parameters alen = 0 and len = 0.

Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>

i2c: lpc32xx: fix read timeout

Fix a condition that generate watchdog timeout inside "lpc32xx_i2c_read" when parameters alen != 0 and len = 0.

Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>

i2c: lpc32xx: use api to get hclk instead of fix value

The HCLK is not constant and can take different value; use the api function to get the value of the HCLK for the I2C clock high and low computa

i2c: lpc32xx: use api to get hclk instead of fix value

The HCLK is not constant and can take different value; use the api function to get the value of the HCLK for the I2C clock high and low computation.

Signed-off-by: Sylvain Lemieux <slemieux@tycoint.com>

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

lpc32xx: i2c: add LPC32xx I2C interface support

Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>