linux-kernel - Re: [RFC 1/2] mmc: read mmc alias from device tree

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Message-ID: <CAD=FV=WjfHC_yR=1QrTWz+K5zv02c4sixngfsy8sX5zhDd0ppw@mail.gmail.com>
Date:	Wed, 6 Aug 2014 12:43:10 -0700
From:	Doug Anderson <dianders@...omium.org>
To:	stefan@...er.ch, Chris Ball <chris@...ntf.net>,
	Ulf Hansson <ulf.hansson@...aro.org>
Cc:	"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	Russell King <linux@....linux.org.uk>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Heiko Stübner <heiko@...ech.de>,
	Addy Ke <addy.ke@...k-chips.com>,
	Andrew Bresticker <abrestic@...omium.org>,
	Olof Johansson <olof@...om.net>
Subject: Re: [RFC 1/2] mmc: read mmc alias from device tree

Stefan,

On Tue, Apr 1, 2014 at 1:35 PM,  <stefan@...er.ch> wrote:
> From: Stefan Agner <stefan@...er.ch>
>
> To get the SD/MMC host device ID, read the alias from the device
> tree.
>
> This is useful in case a SoC has multipe SD/MMC host controllers while
> the second controller should logically be the first device (e.g. if
> the second controller is connected to an internal eMMC). Combined
> with block device numbering using MMC/SD host device ID, this
> results in predictable name assignment of the internal eMMC block
> device.
>
> Signed-off-by: Stefan Agner <stefan@...er.ch>

Yes, please.  It is very handy to have mmc devices be enumerated in a
predictable way.

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