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authorWill Deacon <will.deacon@arm.com>2012-11-15 21:28:43 +0000
committerWill Deacon <will.deacon@arm.com>2012-11-15 21:39:34 +0000
commitf600b9fcd2bcb8ee0adb235f54ccdd93c729c442 (patch)
treeece27e6ac0d2b7b27bf8f365990e5af39bd8eef1 /arch/arm/kernel
parentf435ab79928e4d54082e2838c4562a165e37999c (diff)
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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