[U-Boot] [U-Boot-Custodians] [PATCH 1/1] dm: MIGRATION: Add migration plan for CONFIG_DM

[Marek Vasut]

On 9/14/19 9:58 AM, Heinrich Schuchardt wrote:
> For many sub-systems we already require the driver model to be used. Yet
> there is still a handful of boards that do not have CONFIG_DM enabled.
> 
> We should make CONFIG_DM compulsory with release v2020.01
> 
> Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
> ---
>  Makefile                       | 8 ++++++++
>  doc/driver-model/migration.rst | 8 ++++++++
>  2 files changed, 16 insertions(+)
> 
> diff --git a/Makefile b/Makefile
> index ae56e47b2c..69a6b503b7 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -936,6 +936,14 @@ ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy)
>  endif
>  endif
>  endif
> +ifneq ($(CONFIG_DM),y)
> +	@echo >&2 "===================== WARNING ======================"
> +	@echo >&2 "This board does not use CONFIG_DM. CONFIG_DM will be"
> +	@echo >&2 "compulsory starting with the v2020.01 release."
> +	@echo >&2 "Failure to update may result in board removal."
> +	@echo >&2 "See doc/driver-model/migration.rst for more info."
> +	@echo >&2 "===================================================="
> +endif
>  ifeq ($(CONFIG_MMC),y)
>  ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
>  	@echo >&2 "===================== WARNING ======================"
> diff --git a/doc/driver-model/migration.rst b/doc/driver-model/migration.rst
> index 75b85235ef..23f3a61c0f 100644
> --- a/doc/driver-model/migration.rst
> +++ b/doc/driver-model/migration.rst
> @@ -7,6 +7,14 @@ U-Boot has been migrating to a new driver model since its introduction in
>  2014. This file describes the schedule for deprecation of pre-driver-model
>  features.
> 
> +CONFIG_DM
> +---------
> +
> +* Status: In progress
> +* Deadline: 2020.01
> +
> +Starting with the 2010.01 release CONFIG_DM will be enabled for all boards.

But only for U-Boot proper, not for SPL. And this should be explicitly
mentioned here.