linux-kernel - Re: [PATCH v2] mmc: dw_mmc: move rockchip related code to a separate file

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Date:	Tue, 19 Aug 2014 10:28:12 -0700
From:	Doug Anderson <dianders@...omium.org>
To:	Addy Ke <addy.ke@...k-chips.com>,
	Ulf Hansson <ulf.hansson@...aro.org>
Cc:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Randy Dunlap <rdunlap@...radead.org>,
	Seungwon Jeon <tgih.jun@...sung.com>,
	Jaehoon Chung <jh80.chung@...sung.com>,
	Chris Ball <chris@...ntf.net>,
	Dinh Nguyen <dinguyen@...era.com>,
	Heiko Stübner <heiko@...ech.de>,
	Olof Johansson <olof@...om.net>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
	"zhenfu.fang" <zhenfu.fang@...k-chips.com>,
	Eddie Cai <cf@...k-chips.com>, lintao <lintao@...k-chips.com>,
	chenfen <chenfen@...k-chips.com>, zyf <zyf@...k-chips.com>,
	Jianqun Xu <xjq@...k-chips.com>,
	Tao Huang <huangtao@...k-chips.com>,
	Chris <zyw@...k-chips.com>,
	姚智情 <yzq@...k-chips.com>,
	han jiang <hj@...k-chips.com>,
	Kever Yang <kever.yang@...k-chips.com>,
	zhangqing <zhangqing@...k-chips.com>,
	Lin Huang <hl@...k-chips.com>
Subject: Re: [PATCH v2] mmc: dw_mmc: move rockchip related code to a separate file

Hi,

On Mon, Aug 18, 2014 at 9:36 PM, Addy Ke <addy.ke@...k-chips.com> wrote:
> To support HS200 and UHS-1, we need add a big hunk of code,
> as shown in the following patches. So a separate file for
> rockchip SOCs is suitable.
>
> Signed-off-by: Addy Ke <addy.ke@...k-chips.com>
> ---
> Changes in v2:
> - Kconfig: depend on ARCH_ROCKCHIP, suggested by Bartlomiej Zolnierkiewicz
> - Kconfig: depend on OF, suggested by Doug Anderson
> - Not change suspend/resume code, suggested by Doug Anderson
> - If pdev->dev.of_node is NULL, then return -ENODEV, suggested by Heiko Stübner
>
>  drivers/mmc/host/Kconfig           |   9 +++
>  drivers/mmc/host/Makefile          |   1 +
>  drivers/mmc/host/dw_mmc-pltfm.c    |  57 ----------------
>  drivers/mmc/host/dw_mmc-rockchip.c | 136 +++++++++++++++++++++++++++++++++++++
>  4 files changed, 146 insertions(+), 57 deletions(-)
>  create mode 100644 drivers/mmc/host/dw_mmc-rockchip.c
>
> diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
> index a565254..f6095f6 100644
> --- a/drivers/mmc/host/Kconfig
> +++ b/drivers/mmc/host/Kconfig
> @@ -621,6 +621,15 @@ config MMC_DW_PCI
>
>           If unsure, say N.
>
> +config MMC_DW_ROCKCHIP
> +       tristate "Rockchip specific extensions for Synopsys DW Memory Card Interface"
> +       depends on MMC_DW && ARCH_ROCKCHIP && OF

Actually, Heiko's change to check if pdev->dev.of_node is NULL means
that you don't need to depend on OF anymore.

Ulf: do you want Addy to spin again, or do you want to just remove
this "&& OF" when applying the patch?

...I've tested this both with and without the "&& OF", and the "&& OF"
won't really hurt anything, so:

Tested-by: Doug Anderson <dianders@...omium.org>
Reviewed-by: Doug Anderson <dianders@...omium.org>
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