Re: [PATCH 03/03] staging: board: kzm9d: Board staging support for emxx_udc

From: Geert Uytterhoeven
Date: Thu May 22 2014 - 05:19:54 EST


Hi Magnus,

On Thu, May 22, 2014 at 10:54 AM, Magnus Damm <magnus.damm@xxxxxxxxx> wrote:
> Add staging board support for the KZM9D board and add
> an emxx_udc platform device to allow in-tree continous
> development of the driver on the KZM9D board.
>
> When DT bindings are ready for the emxx_udc driver then
> the platform device in the KZM9D staging board code can
> easily be removed. Until then we use platform devices
> to continously improve the driver and integration code.

Nice!

> drivers/staging/Kconfig | 2 ++
> drivers/staging/Makefile | 1 +
> drivers/staging/board/Kconfig | 7 +++++++
> drivers/staging/board/Makefile | 1 +
> drivers/staging/board/board.h | 17 +++++++++++++++++
> drivers/staging/board/kzm9d.c | 18 ++++++++++++++++++
> 6 files changed, 46 insertions(+)

As you're adding infrastructure and a first user, I think this should
be split in two patches:
- Introduction of drivers/staging/board infrastructure,
- Addition of kzm9d board support.

> --- /dev/null
> +++ work/drivers/staging/board/Kconfig 2014-05-22 15:31:58.000000000 +0900
> @@ -0,0 +1,7 @@
> +config STAGING_BOARD
> + boolean "Staging Board Support"
> + help
> + Select to enable per-board staging support code.
> +
> + If in doubt, say N here.
> +

No board-specific Kconfig symbols, so the actual individual board
support itself is
always compiled-in (but see below)?

> --- /dev/null
> +++ work/drivers/staging/board/Makefile 2014-05-22 15:31:58.000000000 +0900
> @@ -0,0 +1 @@
> +obj-$(CONFIG_ARCH_SHMOBILE_MULTI) += kzm9d.o

Ah, it's included in all shmobile multi-platform kernels.

What about testing for CONFIG_ARCH_EMEV2 instead of
CONFIG_ARCH_SHMOBILE_MULTI?
Or adding a KZM9D-specific Kconfig symbol to .../board/Kconfig?

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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