clocksource/drivers/arm_arch_timer: Drop CNT*_TVAL read accessors
The arch timer driver never reads the various TVAL registers, only writes to them. It is thus pointless to provide accessors for them and to implement errata workarounds. Drop these read-side accessors, and add a couple of BUG() statements for the time being. These statements will be removed further down the line. Reviewed-by: Oliver Upton <oupton@google.com> Reviewed-by: Mark Rutland <mark.rutland@arm.com> Tested-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211017124225.3018098-3-maz@kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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