clocksource/drivers/arm_arch_timer: Introduce generic errata handling infrastructure
Currently we have code inline in the arch timer probe path to cater for Freescale erratum A-008585, complete with ifdeffery. This is a little ugly, and will get worse as we try to add more errata handling. This patch refactors the handling of Freescale erratum A-008585. Now the erratum is described in a generic arch_timer_erratum_workaround structure, and the probe path can iterate over these to detect errata and enable workarounds. This will simplify the addition and maintenance of code handling Hisilicon erratum 161010101. Signed-off-by: NDing Tianhong <dingtianhong@huawei.com> [Mark: split patch, correct Kconfig, reword commit message] Signed-off-by: NMark Rutland <mark.rutland@arm.com> Acked-by: NDaniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: NDaniel Lezcano <daniel.lezcano@linaro.org>
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