From: Daniel Lezcano <daniel.lezcano@linaro.org>
To: tglx@linutronix.de
Cc: linux-kernel@vger.kernel.org, Russell King <rmk+kernel@armlinux.org.uk>
Subject: [PATCH 19/29] clocksource/drivers/orion: Read clock rate once
Date: Sun, 16 Apr 2017 22:27:09 +0200 [thread overview]
Message-ID: <1492374441-23336-19-git-send-email-daniel.lezcano@linaro.org> (raw)
In-Reply-To: <1492374441-23336-1-git-send-email-daniel.lezcano@linaro.org>
From: Russell King <rmk+kernel@armlinux.org.uk>
Rather than reading the clock rate three times, read it once - we are
about to add a fourth usage.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
drivers/clocksource/time-orion.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/clocksource/time-orion.c b/drivers/clocksource/time-orion.c
index a28f496..c4818a5 100644
--- a/drivers/clocksource/time-orion.c
+++ b/drivers/clocksource/time-orion.c
@@ -106,6 +106,7 @@ static struct irqaction orion_clkevt_irq = {
static int __init orion_timer_init(struct device_node *np)
{
+ unsigned long rate;
struct clk *clk;
int irq, ret;
@@ -135,6 +136,8 @@ static int __init orion_timer_init(struct device_node *np)
return -EINVAL;
}
+ rate = clk_get_rate(clk);
+
/* setup timer0 as free-running clocksource */
writel(~0, timer_base + TIMER0_VAL);
writel(~0, timer_base + TIMER0_RELOAD);
@@ -142,15 +145,15 @@ static int __init orion_timer_init(struct device_node *np)
TIMER0_RELOAD_EN | TIMER0_EN,
TIMER0_RELOAD_EN | TIMER0_EN);
- ret = clocksource_mmio_init(timer_base + TIMER0_VAL, "orion_clocksource",
- clk_get_rate(clk), 300, 32,
+ ret = clocksource_mmio_init(timer_base + TIMER0_VAL,
+ "orion_clocksource", rate, 300, 32,
clocksource_mmio_readl_down);
if (ret) {
pr_err("Failed to initialize mmio timer");
return ret;
}
- sched_clock_register(orion_read_sched_clock, 32, clk_get_rate(clk));
+ sched_clock_register(orion_read_sched_clock, 32, rate);
/* setup timer1 as clockevent timer */
ret = setup_irq(irq, &orion_clkevt_irq);
@@ -162,7 +165,7 @@ static int __init orion_timer_init(struct device_node *np)
ticks_per_jiffy = (clk_get_rate(clk) + HZ/2) / HZ;
orion_clkevt.cpumask = cpumask_of(0);
orion_clkevt.irq = irq;
- clockevents_config_and_register(&orion_clkevt, clk_get_rate(clk),
+ clockevents_config_and_register(&orion_clkevt, rate,
ORION_ONESHOT_MIN, ORION_ONESHOT_MAX);
return 0;
--
2.7.4
next prev parent reply other threads:[~2017-04-16 20:31 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-16 20:25 [GIT PULL] timers changes for 4.12 Daniel Lezcano
2017-04-16 20:26 ` [PATCH 01/29] arm64: Allow checking of a CPU-local erratum Daniel Lezcano
2017-04-16 20:26 ` [PATCH 02/29] arm64: Add CNTVCT_EL0 trap handler Daniel Lezcano
2017-04-16 20:26 ` [PATCH 03/29] arm64: Define Cortex-A73 MIDR Daniel Lezcano
2017-04-16 20:26 ` [PATCH 04/29] arm64: cpu_errata: Allow an erratum to be match for all revisions of a core Daniel Lezcano
2017-04-16 20:26 ` [PATCH 05/29] arm64: cpu_errata: Add capability to advertise Cortex-A73 erratum 858921 Daniel Lezcano
2017-04-16 20:26 ` [PATCH 06/29] arm64: arch_timer: Add infrastructure for multiple erratum detection methods Daniel Lezcano
2017-04-16 20:26 ` [PATCH 07/29] arm64: arch_timer: Add erratum handler for CPU-specific capability Daniel Lezcano
2017-04-16 20:26 ` [PATCH 08/29] arm64: arch_timer: Move arch_timer_reg_read/write around Daniel Lezcano
2017-04-16 20:26 ` [PATCH 09/29] arm64: arch_timer: Get rid of erratum_workaround_set_sne Daniel Lezcano
2017-04-16 20:27 ` [PATCH 10/29] arm64: arch_timer: Rework the set_next_event workarounds Daniel Lezcano
2017-04-16 20:27 ` [PATCH 11/29] arm64: arch_timer: Make workaround methods optional Daniel Lezcano
2017-04-16 20:27 ` [PATCH 12/29] arm64: arch_timer: Allows a CPU-specific erratum to only affect a subset of CPUs Daniel Lezcano
2017-04-16 20:27 ` [PATCH 13/29] arm64: arch_timer: Move clocksource_counter and co around Daniel Lezcano
2017-04-16 20:27 ` [PATCH 14/29] arm64: arch_timer: Save cntkctl_el1 as a per-cpu variable Daniel Lezcano
2017-04-16 20:27 ` [PATCH 15/29] arm64: arch_timer: Enable CNTVCT_EL0 trap if workaround is enabled Daniel Lezcano
2017-04-16 20:27 ` [PATCH 16/29] arm64: arch_timer: Workaround for Cortex-A73 erratum 858921 Daniel Lezcano
2017-04-16 20:27 ` [PATCH 17/29] arm64: arch_timer: Allow erratum matching with ACPI OEM information Daniel Lezcano
2017-04-16 20:27 ` [PATCH 18/29] arm64: arch_timer: Add HISILICON_ERRATUM_161010101 ACPI matching data Daniel Lezcano
2017-04-16 20:27 ` Daniel Lezcano [this message]
2017-04-16 20:27 ` [PATCH 20/29] clocksource/drivers/orion: Add delay_timer implementation Daniel Lezcano
2017-04-16 20:27 ` [PATCH 21/29] clocksource: Add missing line break to error messages Daniel Lezcano
2017-04-24 7:45 ` Uwe Kleine-König
2017-04-16 20:27 ` [PATCH 22/29] dt-bindings: Clarify compatible property for rockchip timers Daniel Lezcano
2017-04-20 14:12 ` Rob Herring
2017-04-16 20:27 ` [PATCH 23/29] ARM: dts: rockchip: Update compatible property for rk322x timer Daniel Lezcano
2017-04-16 20:27 ` [PATCH 24/29] clocksource/drivers/rockchip_timer: Implement clocksource timer Daniel Lezcano
2017-04-16 20:27 ` [PATCH 25/29] ARM: dts: rockchip: Add timer entries to rk3188 SoC Daniel Lezcano
2017-04-16 20:27 ` [PATCH 26/29] ARM: dts: rockchip: disable arm-global-timer for rk3188 Daniel Lezcano
2017-04-16 20:27 ` [PATCH 27/29] clocksource: Augment bindings for Faraday timer Daniel Lezcano
2017-04-16 20:27 ` [PATCH 28/29] clocksource/drivers/gemini: Rename Gemini timer to Faraday Daniel Lezcano
2017-04-16 20:27 ` [PATCH 29/29] clocksource/drivers/fttmr010: Refactor to handle clock Daniel Lezcano
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