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| author | Robert Jarzmik <robert.jarzmik@free.fr> | 2016-09-19 21:12:13 +0200 |
|---|---|---|
| committer | Robert Jarzmik <robert.jarzmik@free.fr> | 2016-10-18 09:12:36 +0200 |
| commit | f4e14edf25661f32c9e7323d8a482b8632a6f47f (patch) | |
| tree | a778fa00549bd28efe7c6ed27c56e1348b8d4aff | |
| parent | clk: pxa25x: OSTIMER0 clocks from the main oscillator (diff) | |
| download | linux-f4e14edf25661f32c9e7323d8a482b8632a6f47f.tar.xz linux-f4e14edf25661f32c9e7323d8a482b8632a6f47f.zip | |
ARM: sa11x0/pxa: acquire timer rate from the clock rate
As both pxa and sa1100 provide a clock to the timer, the rate can be
inferred from the clock rather than hard encoded in a functional call.
This patch changes the pxa timer to have a mandatory clock which is used
as the timer rate.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
| -rw-r--r-- | arch/arm/mach-pxa/generic.c | 3 | ||||
| -rw-r--r-- | arch/arm/mach-sa1100/generic.c | 2 | ||||
| -rw-r--r-- | drivers/clocksource/pxa_timer.c | 11 | ||||
| -rw-r--r-- | include/clocksource/pxa.h | 3 |
4 files changed, 8 insertions, 11 deletions
diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c index ec510ecf8370..2a9297991d74 100644 --- a/arch/arm/mach-pxa/generic.c +++ b/arch/arm/mach-pxa/generic.c @@ -69,8 +69,7 @@ void __init pxa_timer_init(void) pxa27x_clocks_init(); if (cpu_is_pxa3xx()) pxa3xx_clocks_init(); - pxa_timer_nodt_init(IRQ_OST0, io_p2v(0x40a00000), - get_clock_tick_rate()); + pxa_timer_nodt_init(IRQ_OST0, io_p2v(0x40a00000)); } /* diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c index 3e09beddb6e8..2eb00691b07d 100644 --- a/arch/arm/mach-sa1100/generic.c +++ b/arch/arm/mach-sa1100/generic.c @@ -378,7 +378,7 @@ void __init sa1100_map_io(void) void __init sa1100_timer_init(void) { - pxa_timer_nodt_init(IRQ_OST0, io_p2v(0x90000000), 3686400); + pxa_timer_nodt_init(IRQ_OST0, io_p2v(0x90000000)); } static struct resource irq_resource = diff --git a/drivers/clocksource/pxa_timer.c b/drivers/clocksource/pxa_timer.c index 3e1cb512f3ce..9cae38eebec2 100644 --- a/drivers/clocksource/pxa_timer.c +++ b/drivers/clocksource/pxa_timer.c @@ -220,17 +220,16 @@ CLOCKSOURCE_OF_DECLARE(pxa_timer, "marvell,pxa-timer", pxa_timer_dt_init); /* * Legacy timer init for non device-tree boards. */ -void __init pxa_timer_nodt_init(int irq, void __iomem *base, - unsigned long clock_tick_rate) +void __init pxa_timer_nodt_init(int irq, void __iomem *base) { struct clk *clk; timer_base = base; clk = clk_get(NULL, "OSTIMER0"); - if (clk && !IS_ERR(clk)) + if (clk && !IS_ERR(clk)) { clk_prepare_enable(clk); - else + pxa_timer_common_init(irq, clk_get_rate(clk)); + } else { pr_crit("%s: unable to get clk\n", __func__); - - pxa_timer_common_init(irq, clock_tick_rate); + } } diff --git a/include/clocksource/pxa.h b/include/clocksource/pxa.h index 1efbe5a66958..a9a0f03024a4 100644 --- a/include/clocksource/pxa.h +++ b/include/clocksource/pxa.h @@ -12,7 +12,6 @@ #ifndef _CLOCKSOURCE_PXA_H #define _CLOCKSOURCE_PXA_H -extern void pxa_timer_nodt_init(int irq, void __iomem *base, - unsigned long clock_tick_rate); +extern void pxa_timer_nodt_init(int irq, void __iomem *base); #endif |