From: Mark A. Greer <mgreer@animalcreek.com>
Date: Fri, 8 Aug 2014 00:41:46 +0000 (-0700)
Subject: NFC: trf7970a: Document the 'en2-rf-quirk' DT property
X-Git-Tag: fixes-against-v3.18-rc2~144^2~39^2~72^2~71
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6afed0eb8c4158c99845f8d30cd5c3fd8e4855d9;p=pandora-kernel.git

NFC: trf7970a: Document the 'en2-rf-quirk' DT property

Current versions of the trf7970a have an erratum where
the EN2 pin must be kept low.  If it isn't kept low,
it will generate an RF field even when in passive
target mode.  To work around this issue, create the
'en2-rf-quirk' device tree property to indicate that
the trf7970a that the driver is using has this erratum.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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