clocksource: convert ARM 32-bit up counting clocksources

Convert ixp4xx, lpc32xx, mxc, netx, pxa, sa1100, tcc8k, tegra and u300
to use the generic mmio clocksource recently introduced.

Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Acked-by: "Hans J. Koch" <hjk@hansjkoch.de>
Acked-by: Colin Cross <ccross@android.com>
Cc: Erik Gilling <konkers@android.com>
Cc: Olof Johansson <olof@lixom.net>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 2 insertions, 15 deletions

diff --git a/arch/arm/mach-pxa/time.c b/arch/arm/mach-pxa/time.c
index 428da3ff33a5..de684701449c 100644
--- a/arch/arm/mach-pxa/time.c
+++ b/arch/arm/mach-pxa/time.c
@@ -105,19 +105,6 @@ static struct clock_event_device ckevt_pxa_osmr0 = {
         .set_mode       = pxa_osmr0_set_mode,
 };
 
-static cycle_t pxa_read_oscr(struct clocksource *cs)
-{
-        return OSCR;
-}
-
-static struct clocksource cksrc_pxa_oscr0 = {
-        .name           = "oscr0",
-        .rating         = 200,
-        .read           = pxa_read_oscr,
-        .mask           = CLOCKSOURCE_MASK(32),
-        .flags          = CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
 static struct irqaction pxa_ost0_irq = {
         .name           = "ost0",
         .flags          = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
@@ -134,7 +121,6 @@ static void __init pxa_timer_init(void)
 
         init_sched_clock(&cd, pxa_update_sched_clock, 32, clock_tick_rate);
 
-        clocksource_calc_mult_shift(&cksrc_pxa_oscr0, clock_tick_rate, 4);
         clockevents_calc_mult_shift(&ckevt_pxa_osmr0, clock_tick_rate, 4);
         ckevt_pxa_osmr0.max_delta_ns =
                 clockevent_delta2ns(0x7fffffff, &ckevt_pxa_osmr0);
@@ -144,7 +130,8 @@ static void __init pxa_timer_init(void)
 
         setup_irq(IRQ_OST0, &pxa_ost0_irq);
 
-        clocksource_register_hz(&cksrc_pxa_oscr0, clock_tick_rate);
+        clocksource_mmio_init(&OSCR, "oscr0", clock_tick_rate, 200, 32,
+                clocksource_mmio_readl_up);
         clockevents_register_device(&ckevt_pxa_osmr0);
 }