linux-kernel - Re: [PATCH] mmc: dw_mmc: Remove architecture dependency

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Message-ID: <CAGOxZ51_cr_j5vWrNO_ZnfAQsvt8zfEjQZC2f-nWv4w9b5R1kQ@mail.gmail.com>
Date:	Thu, 14 Aug 2014 03:51:43 +0530
From:	Alim Akhtar <alim.akhtar@...il.com>
To:	Andrew Bresticker <abrestic@...omium.org>
Cc:	Chris Ball <chris@...ntf.net>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Seungwon Jeon <tgih.jun@...sung.com>,
	Jaehoon Chung <jh80.chung@...sung.com>,
	Doug Anderson <dianders@...omium.org>,
	"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mmc: dw_mmc: Remove architecture dependency

Hi Andrew,

On Wed, Aug 13, 2014 at 11:02 PM, Andrew Bresticker
<abrestic@...omium.org> wrote:
> The dw_mmc host may also be present on non-ARC/ARM SoCs (e.g. MIPS)
> and the driver itself does not appear to depend on any particular
> architecture(s).
>
> Signed-off-by: Andrew Bresticker <abrestic@...omium.org>
> ---
>  drivers/mmc/host/Kconfig | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
> index a565254..15b110a 100644
> --- a/drivers/mmc/host/Kconfig
> +++ b/drivers/mmc/host/Kconfig
> @@ -563,7 +563,6 @@ config SDH_BFIN_MISSING_CMD_PULLUP_WORKAROUND
>
>  config MMC_DW
>         tristate "Synopsys DesignWare Memory Card Interface"
> -       depends on ARC || ARM

I am not sure if just removing _depends_ is good vs adding another
architecture(s) dependency here.
There are n number of places in Kconfig where this _depends_ runs up
to well over 10 entries.
What about config like MMC_DW_EXYNOS and MMC_DW_K3 which depends on
MMC_DW? Is it ok to expose them as well for architectures which might
not contains these variants?

One way I found this useful, one need not worry about finding MMC_DW
in there arch default menu-config, this will just appear, go and
select it.

Lets see what others think about this.

>         help
>           This selects support for the Synopsys DesignWare Mobile Storage IP
>           block, this provides host support for SD and MMC interfaces, in both
> --
> 2.1.0.rc2.206.gedb03e5
>
> --
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-- 
Regards,
Alim
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