From: Stephen Boyd <sboyd@codeaurora.org>
Date: Fri, 14 Nov 2014 18:39:21 +0000 (-0800)
Subject: tty: serial: msm_serial: Don't require DT aliases
X-Git-Tag: omap-for-v3.19/fixes-rc1~86^2~37
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7920408b0c8292831f064ea33f56aa307b221a2c;p=pandora-kernel.git

tty: serial: msm_serial: Don't require DT aliases

If there isn't a DT alias then of_alias_get_id() will return
-ENODEV. This will cause the msm_serial driver to fail probe,
when we want to keep the previous behavior where we generated a
dynamic line number at probe time. Restore this behavior by
generating a dynamic id if the line number is still negative
after checking for an alias or in the non-DT case looking at the
.id field of the platform device.

Reported-by: Kevin Hilman <khilman@kernel.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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