The commends in include/power/pmic.h say that once SPL_DM_PMIC exists we
should update things. This has been true for some time, so let us update
this to have the legacy portions in their own header, which should not
be directly included. This cleans up the logic within the file too
slightly.

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

This avoids an error in converting to CONFIG_IS_ENABLED(DM_PMIC).
Many boards SPL code needs these definitions to compile, even if
the functions are not linked.

Signed-off-by: Troy Kisky <troykiskyboundary@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

This converts the following to Kconfig:
   CONFIG_POWER_I2C
   CONFIG_POWER_LEGACY

They are handled at the same time due to a dependency between them.
Update the Makefile rule to use legacy power only in U-Boot proper.
Unfortunately a separate rule is needed in SPL to be able to build
legacy power.  Add SPL related symbols for both, to allow for SPL-only
usage.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
[trini: More SPL related cleanups, reword commit message]
Signed-off-by: Tom Rini <trini@konsulko.com>

This option is used in pre-driver model code and much of it has never
been converted to driver model.

We want to add a new option to enable power support, so we can use a
simple rule in the Makefile. Rename this one, which is really about
a particular implementation of power.

Also update the pmic.h header file so it either includes the legacy
API or the driver model one.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>

The struct uc_pmic_priv's trans_len field stores the number of types to
be transmitted per PMIC transfer.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>

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>

Include dm/ofnode.h.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>

Update the pmic uclass and all pmics to support a live device tree.

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

include/power/pmic.h never used any generic spi code
from include/spi.h, but this has been added in below commit.
"dm: pmic: add implementation of driver model pmic uclass"
(sha1: 4d9057e82be11a862db411c4867e859fe0d4ca2a)

Adding functionalities in include/spi.h will trigger a build
issue as this been added used in include/power/pmic.h

Build issue on trats2 with adding BIT macro on spi.h:
----------------------------------------------------
  CC      lib/asm-offsets.s
In file included from include/power/pmic.h:15:0,
                 from include/power/max77686_pmic.h:11,
                 from include/configs/trats2.h:212,
                 from include/config.h:5,
                 from include/common.h:18,
                 from lib/asm-offsets.c:15:
include/spi.h: In function 'spi_w8r8':
include/spi.h:327:2: warning: implicit declaration of function 'BIT' [-Wimplicit-function-declaration]

Cc: Simon Glass <sjg@chromium.org>
Cc: Przemyslaw Marczak <p.marczak@samsung.com>
Reported-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Acked-by: Simon Glass <sjg@chromium.org>