dm: doc: Update documentation for new driver model schema

Now that Linux has accepted these tags, move U-Boot over to use them.
Tidy up the comments and formatting, making sure that VPL is mentioned
too.

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

doc: dm: clarify activation.

Explain when devices should get activated.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

Convert CONFIG_SPL_SYS_MALLOC_SIMPLE to Kconfig

This converts the following to Kconfig:
CONFIG_SPL_SYS_MALLOC_SIMPLE

The problem here is that a few platforms have been doing:
#ifdef CONFIG_SPL_BUILD
#define CONFIG_SYS_MALLOC_SIMPLE
#endif

instead of defining CONFIG_SPL_SYS_MALLOC_SIMPLE directly. Correct this
and update the documentation in a few places to match usage.

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

dm: tag: add some document

Some basic stuff about tag support is explained under
doc/devlop/driver-model.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

dm: core: Document the common error codes

Driver model uses quite strong conventions on error codes, but these are
currently not clearly documented. Add a description of the commonly used
errors.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Sean Anderson <seanga2@gmail.com>

doc: Move driver model docs under develop/

These docs are useful for developers, not users. Move them under that
section.

Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>

doc: dm: clarify activation.

Explain when devices should get activated.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

Convert CONFIG_SPL_SYS_MALLOC_SIMPLE to Kconfig

This converts the following to Kconfig:
CONFIG_SPL_SYS_MALLOC_SIMPLE

The problem here is that a few platforms have been doing:
#ifdef CONFIG_SPL_BUILD
#define CONFIG_SYS_MALLOC_SIMPLE
#endif

instead of defining CONFIG_SPL_SYS_MALLOC_SIMPLE directly. Correct this
and update the documentation in a few places to match usage.

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

dm: tag: add some document

Some basic stuff about tag support is explained under
doc/devlop/driver-model.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

dm: core: Document the common error codes

Driver model uses quite strong conventions on error codes, but these are
currently not clearly documented. Add a description of the commonly used
errors.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Sean Anderson <seanga2@gmail.com>

doc: Move driver model docs under develop/

These docs are useful for developers, not users. Move them under that
section.

Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>

Convert CONFIG_SPL_SYS_MALLOC_SIMPLE to Kconfig

This converts the following to Kconfig:
CONFIG_SPL_SYS_MALLOC_SIMPLE

The problem here is that a few platforms have been doing:
#ifdef CONFIG_SPL_BUILD
#define CONFIG_SYS_MALLOC_SIMPLE
#endif

instead of defining CONFIG_SPL_SYS_MALLOC_SIMPLE directly. Correct this
and update the documentation in a few places to match usage.

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

dm: tag: add some document

Some basic stuff about tag support is explained under
doc/devlop/driver-model.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

dm: core: Document the common error codes

Driver model uses quite strong conventions on error codes, but these are
currently not clearly documented. Add a description of the commonly used
errors.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Sean Anderson <seanga2@gmail.com>

doc: Move driver model docs under develop/

These docs are useful for developers, not users. Move them under that
section.

Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>

dm: tag: add some document

Some basic stuff about tag support is explained under
doc/devlop/driver-model.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

dm: core: Document the common error codes

Driver model uses quite strong conventions on error codes, but these are
currently not clearly documented. Add a description of the commonly used
errors.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Sean Anderson <seanga2@gmail.com>

doc: Move driver model docs under develop/

These docs are useful for developers, not users. Move them under that
section.

Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>

dm: core: Document the common error codes

Driver model uses quite strong conventions on error codes, but these are
currently not clearly documented. Add a description of the commonly used
errors.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Sean Anderson <seanga2@gmail.com>

doc: Move driver model docs under develop/

These docs are useful for developers, not users. Move them under that
section.

Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>

doc: Move driver model docs under develop/

These docs are useful for developers, not users. Move them under that
section.

Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>