From: Will Deacon <will.deacon@arm.com>
Date: Thu, 15 Nov 2012 21:28:43 +0000 (+0000)
Subject: ARM: cti: fix manipulation of debug lock registers
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~53^2^2~8^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f600b9fcd2bcb8ee0adb235f54ccdd93c729c442;p=pandora-kernel.git

ARM: cti: fix manipulation of debug lock registers

The LOCKSTATUS register for memory-mapped coresight devices indicates
whether or not the device in question implements hardware locking. If
not, locking is not present (i.e. LSR.SLI == 0) and LAR is write-ignore,
so software doesn't actually need to check the status register at all.

This patch removes the broken LSR checks.

Cc: Ming Lei <ming.lei@canonical.com>
Reported-by: Mike Williams <michael.williams@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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