clocksource: add common mmio clocksource

Add a generic mmio clocksource, covering both 32-bit and 16-bit register
access sizes, for up or down counters.  This can be used to easily
create clocksources for simple counter-based implementations.

Cc: Alessandro Rubini <[email protected]>
Cc: Colin Cross <[email protected]>
Cc: Eric Miao <[email protected]>
Cc: Erik Gilling <[email protected]>
Acked-by: "Hans J. Koch" <[email protected]>
Cc: Imre Kaloz <[email protected]>
Cc: Krzysztof Halasa <[email protected]>
Cc: Kukjin Kim <[email protected]>
Cc: Lennert Buytenhek <[email protected]>
Cc: Linus Walleij <[email protected]>
Cc: [email protected]
Acked-by: Nicolas Pitre <[email protected]>
Cc: Olof Johansson <[email protected]>
Tested-by: Sascha Hauer <[email protected]>
Reviewed-by: Thomas Gleixner <[email protected]>
Tested-by: Tony Lindgren <[email protected]>
Reviewed-by: Viresh Kumar <[email protected]>
Cc: Wan ZongShun <[email protected]>
Signed-off-by: Russell King <[email protected]>

0 files changed, 0 insertions, 0 deletions