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authorRussell King <rmk+kernel@arm.linux.org.uk>2011-05-08 14:09:47 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-05-23 18:04:51 +0100
commit234b6ceddb4fc2a4bc5b9a7670f070f6e69e0868 (patch)
tree891f57ca663b5ec0bb61bb3e38c5306e0d13d2bd /arch/arm/mach-tegra
parent442c8176d2efa468577738e3a99a6e051f6e8e55 (diff)
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>
Diffstat (limited to 'arch/arm/mach-tegra')
-rw-r--r--arch/arm/mach-tegra/timer.c16
1 files changed, 2 insertions, 14 deletions
diff --git a/arch/arm/mach-tegra/timer.c b/arch/arm/mach-tegra/timer.c
index 0fcb1eb4214d..90350420c4e9 100644
--- a/arch/arm/mach-tegra/timer.c
+++ b/arch/arm/mach-tegra/timer.c
@@ -98,11 +98,6 @@ static void tegra_timer_set_mode(enum clock_event_mode mode,
}
}
-static cycle_t tegra_clocksource_read(struct clocksource *cs)
-{
- return timer_readl(TIMERUS_CNTR_1US);
-}
-
static struct clock_event_device tegra_clockevent = {
.name = "timer0",
.rating = 300,
@@ -111,14 +106,6 @@ static struct clock_event_device tegra_clockevent = {
.set_mode = tegra_timer_set_mode,
};
-static struct clocksource tegra_clocksource = {
- .name = "timer_us",
- .rating = 300,
- .read = tegra_clocksource_read,
- .mask = CLOCKSOURCE_MASK(32),
- .flags = CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
static DEFINE_CLOCK_DATA(cd);
/*
@@ -234,7 +221,8 @@ static void __init tegra_init_timer(void)
init_fixed_sched_clock(&cd, tegra_update_sched_clock, 32,
1000000, SC_MULT, SC_SHIFT);
- if (clocksource_register_hz(&tegra_clocksource, 1000000)) {
+ if (clocksource_mmio_init(timer_reg_base + TIMERUS_CNTR_1US,
+ "timer_us", 1000000, 300, 32, clocksource_mmio_readl_up)) {
printk(KERN_ERR "Failed to register clocksource\n");
BUG();
}