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Date: Wed, 31 Oct 2018 13:14:09 +0000
From: Wolfram Sang <wsa@the-dreams.de>
To: Simon Horman <horms@verge.net.au>
Cc: Marek Vasut <marek.vasut@gmail.com>, linux-mmc@vger.kernel.org,
        Marek Vasut <marek.vasut+renesas@gmail.com>,
        Geert Uytterhoeven <geert+renesas@glider.be>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
        linux-renesas-soc@vger.kernel.org
Subject: Re: [PATCH 2/2] arm64: dts: renesas: salvator: Switch eMMC bus to 1V8
Message-ID: <20181031131409.GB1487@kunai>
References: <20181027163410.7417-1-marek.vasut+renesas@gmail.com>
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> But can we discuss this in the context of describing the hardware?

The SDHI node needs two kinds of pinmux settings, one for normal speeds
and one for highspeeds. They might differ in supplied voltage, i.e. 3v3
and 1v8. This eMMC always works with 1v8, so both settings needed by the
SDHI node are the same currently. That might change if we add new
features to pinmux nodes like TDSEL/capacity support. My guess is that
this is not so likely to happen so I suggested using just one node.

But it has a taste of bike-shedding to it :)


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