tree 89b604c987b7f6a0eaaa16af7a9d8f45711349a7
parent a1b2dde70419ae947fd7c9c8fcad7da005dc600e
author Jonathan Austin <Jonathan.Austin@arm.com> 1348249904 +0100
committer Russell King <rmk+kernel@arm.linux.org.uk> 1348696672 +0100

ARM: 7538/1: delay: add registration mechanism for delay timer sources

The current timer-based delay loop relies on the architected timer to
initiate the switch away from the polling-based implementation. This is
unfortunate for platforms without the architected timers but with a
suitable delay source (that is, constant frequency, always powered-up
and ticking as long as the CPUs are online).

This patch introduces a registration mechanism for the delay timer
(which provides an unconditional read_current_timer implementation) and
updates the architected timer code to use the new interface.

Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Jonathan Austin <jonathan.austin@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>