From: khilman@baylibre•com (Kevin Hilman)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH] ARM64: dts: Mediatek: mt8173-evb: fix access MMC fail issue
Date: Mon, 22 Feb 2016 16:32:54 -0800 [thread overview]
Message-ID: <7h37skw9jd.fsf@baylibre.com> (raw)
In-Reply-To: <1455861643-24307-1-git-send-email-eddie.huang@mediatek.com> (Eddie Huang's message of "Fri, 19 Feb 2016 14:00:43 +0800")
Eddie Huang <eddie.huang@mediatek•com> writes:
> MT8173 E1 chip has one bug that if turn off USB power domain, vcore
> power will also be off, thus cause modules using vcore power domain
> fail, like MMC. The E1 chip only found on MT8173-evb board and this
> board only has E1 chip, so implement this as a board specific
> workaround.
>
> Pwrapper use vcore power, so add pwrapper using USB power domain to
> keep USB power domain not to zero and disabled.
>
> Signed-off-by: Eddie Huang <eddie.huang@mediatek•com>
Tested-by: Kevin Hilman <khilman@baylibre•com>
I verified that this gets my mt8173-evb booting again when I enable MMC
support.
Thanks,
Kevin
next prev parent reply other threads:[~2016-02-23 0:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-19 6:00 [PATCH] ARM64: dts: Mediatek: mt8173-evb: fix access MMC fail issue Eddie Huang
2016-02-19 10:05 ` Matthias Brugger
2016-02-23 0:32 ` Kevin Hilman [this message]
2016-02-23 8:53 ` Matthias Brugger
2016-02-23 18:32 ` Kevin Hilman
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