The irq member of struct nios2_timer is only written to but
never read, thus it can be removed.
Signed-off-by: NTobias Klauser <tklauser@distanz.ch>
Acked-by: NLey Foon Tan <lftan@altera.com>

Return value of irq_of_parse_and_map() is unsigned int, with 0
indicating failure, so testing for negative result never works.
Signed-off-by: NDmitry Torokhov <dtor@chromium.org>
Reviewed-by: NTobias Klauser <tklauser@distanz.ch>
Acked-by: NLey Foon Tan <lftan@altera.com>

Add time keeping code for nios2.
Signed-off-by: NLey Foon Tan <lftan@altera.com>
Reviewed-by: NThomas Gleixner <tglx@linutronix.de>