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authorSuzuki K Poulose <suzuki.poulose@arm.com>2021-02-01 19:13:25 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-02-04 17:00:32 +0100
commit6e736c60a9fe905b3e4f4b07171a31ad602d56d2 (patch)
treeaf28bea596e4d2e1fafe0abc792c79323eec6321 /drivers/bus/arm-integrator-lm.c
parentcoresight: etm4x: Skip accessing TRCPDCR in save/restore (diff)
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coresight: Introduce device access abstraction
We are about to introduce support for sysreg access to ETMv4.4+ component. Since there are generic routines that access the registers (e.g, CS_LOCK/UNLOCK , claim/disclaim operations, timeout) and in order to preserve the logic of these operations at a single place we introduce an abstraction layer for the accesses to a given device. Link: https://lore.kernel.org/r/20210110224850.1880240-4-suzuki.poulose@arm.com Cc: Mike Leach <mike.leach@linaro.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20210201181351.1475223-6-mathieu.poirier@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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