ARM: AT91: update clock source registration

In d7e81c2 (clocksource: Add clocksource_register_hz/khz interface) new
interfaces were added which simplify (and optimize) the selection of the
divisor shift/mult constants.  Switch over to using this new interface.

Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2 files changed, 2 insertions, 6 deletions

diff --git a/arch/arm/mach-at91/at91rm9200_time.c b/arch/arm/mach-at91/at91rm9200_time.c
index 2500f41d8d2d..1dd69c85dfec 100644
--- a/arch/arm/mach-at91/at91rm9200_time.c
+++ b/arch/arm/mach-at91/at91rm9200_time.c
@@ -101,7 +101,6 @@ static struct clocksource clk32k = {
         .rating         = 150,
         .read           = read_clk32k,
         .mask           = CLOCKSOURCE_MASK(20),
-        .shift          = 10,
         .flags          = CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
@@ -201,8 +200,7 @@ void __init at91rm9200_timer_init(void)
         clockevents_register_device(&clkevt);
 
         /* register clocksource */
-        clk32k.mult = clocksource_hz2mult(AT91_SLOW_CLOCK, clk32k.shift);
-        clocksource_register(&clk32k);
+        clocksource_register_hz(&clk32k, AT91_SLOW_CLOCK);
 }
 
 struct sys_timer at91rm9200_timer = {
diff --git a/arch/arm/mach-at91/at91sam926x_time.c b/arch/arm/mach-at91/at91sam926x_time.c
index 608a63240b64..4ba85499fa97 100644
--- a/arch/arm/mach-at91/at91sam926x_time.c
+++ b/arch/arm/mach-at91/at91sam926x_time.c
@@ -51,7 +51,6 @@ static struct clocksource pit_clk = {
         .name           = "pit",
         .rating         = 175,
         .read           = read_pit_clk,
-        .shift          = 20,
         .flags          = CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
@@ -163,10 +162,9 @@ static void __init at91sam926x_pit_init(void)
          * Register clocksource.  The high order bits of PIV are unused,
          * so this isn't a 32-bit counter unless we get clockevent irqs.
          */
-        pit_clk.mult = clocksource_hz2mult(pit_rate, pit_clk.shift);
         bits = 12 /* PICNT */ + ilog2(pit_cycle) /* PIV */;
         pit_clk.mask = CLOCKSOURCE_MASK(bits);
-        clocksource_register(&pit_clk);
+        clocksource_register_hz(&pit_clk, pit_rate);
 
         /* Set up irq handler */
         setup_irq(AT91_ID_SYS, &at91sam926x_pit_irq);