linux-kernel - Re: [PATCH v3] mmc: dw_mmc: Add MSHC compatible for Exynos4412

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Message-Id: <201302182236.43877.arnd@arndb.de>
Date:	Mon, 18 Feb 2013 22:36:43 +0000
From:	Arnd Bergmann <arnd@...db.de>
To:	Dongjin Kim <tobetter@...il.com>
Cc:	Jaehoon Chung <jh80.chung@...sung.com>,
	Sachin Kamat <sachin.kamat@...aro.org>,
	Chris Ball <cjb@...top.org>,
	Thomas Abraham <thomas.abraham@...aro.org>,
	Will Newton <will.newton@...tec.com>,
	linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] mmc: dw_mmc: Add MSHC compatible for Exynos4412

On Monday 18 February 2013, Dongjin Kim wrote:
> 
> This patch adds the compatible string for MSHC controller of Exynos4412, and
> share the controller specific properties with Exynos5250 since they have same
> features. Its driver data name is changed to exynos_drv_data instead SoC
> specific name.
> 
> Cc: Jaehoon Chung <jh80.chung@...sung.com>
> Cc: Sachin Kamat <sachin.kamat@...aro.org>
> Signed-off-by: Dongjin Kim <tobetter@...il.com>

If they are completely compatibly, you can just list
"samsung,exynos4412-dw-mshc" in the compatible property of the
exynos5250 device tree, along with the other ones like:

	compatible = "samsung,exynos5250-dw-mshc", "samsung,exynos4412-dw-mshc", "snps,dw-mshc";

then you don't need to change the driver at all.

	Arnd
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