[GIT PULL] timer fixes

From: Ingo Molnar
Date: Sun Mar 01 2015 - 12:06:53 EST


Linus,

Please pull the latest timers-urgent-for-linus git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers-urgent-for-linus

# HEAD: e3eff6fe7d8a877d94f5dbb8fea46b4f8ca4ce5a Merge branch 'clockevents/4.0-rc1' of git://git.linaro.org/people/daniel.lezcano/linux into timers/urgent

Three clockevents/clocksource driver fixes.

Thanks,

Ingo

------------------>
Daniel Lezcano (1):
clockevents: asm9260: Fix compilation error with sparc/sparc64 allyesconfig

Matthias Brugger (1):
clocksource: mtk: Fix race conditions in probe code

Robert Jarzmik (1):
clocksource: pxa: Fix section mismatch


arch/arm/mach-asm9260/Kconfig | 2 ++
drivers/clocksource/Kconfig | 16 +++++-----------
drivers/clocksource/mtk_timer.c | 9 +++++----
drivers/clocksource/pxa_timer.c | 2 +-
4 files changed, 13 insertions(+), 16 deletions(-)

diff --git a/arch/arm/mach-asm9260/Kconfig b/arch/arm/mach-asm9260/Kconfig
index 8423be76080e..52241207a82a 100644
--- a/arch/arm/mach-asm9260/Kconfig
+++ b/arch/arm/mach-asm9260/Kconfig
@@ -2,5 +2,7 @@ config MACH_ASM9260
bool "Alphascale ASM9260"
depends on ARCH_MULTI_V5
select CPU_ARM926T
+ select ASM9260_TIMER
+ select GENERIC_CLOCKEVENTS
help
Support for Alphascale ASM9260 based platform.
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 1c2506f68122..68161f7a07d6 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -63,6 +63,11 @@ config VT8500_TIMER
config CADENCE_TTC_TIMER
bool

+config ASM9260_TIMER
+ bool
+ select CLKSRC_MMIO
+ select CLKSRC_OF
+
config CLKSRC_NOMADIK_MTU
bool
depends on (ARCH_NOMADIK || ARCH_U8500)
@@ -245,15 +250,4 @@ config CLKSRC_PXA
help
This enables OST0 support available on PXA and SA-11x0
platforms.
-
-config ASM9260_TIMER
- bool "Alphascale ASM9260 timer driver"
- depends on GENERIC_CLOCKEVENTS
- select CLKSRC_MMIO
- select CLKSRC_OF
- default y if MACH_ASM9260
- help
- This enables build of a clocksource and clockevent driver for
- the 32-bit System Timer hardware available on a Alphascale ASM9260.
-
endmenu
diff --git a/drivers/clocksource/mtk_timer.c b/drivers/clocksource/mtk_timer.c
index 32a3d25795d3..68ab42356d0e 100644
--- a/drivers/clocksource/mtk_timer.c
+++ b/drivers/clocksource/mtk_timer.c
@@ -224,6 +224,8 @@ static void __init mtk_timer_init(struct device_node *node)
}
rate = clk_get_rate(clk);

+ mtk_timer_global_reset(evt);
+
if (request_irq(evt->dev.irq, mtk_timer_interrupt,
IRQF_TIMER | IRQF_IRQPOLL, "mtk_timer", evt)) {
pr_warn("failed to setup irq %d\n", evt->dev.irq);
@@ -232,8 +234,6 @@ static void __init mtk_timer_init(struct device_node *node)

evt->ticks_per_jiffy = DIV_ROUND_UP(rate, HZ);

- mtk_timer_global_reset(evt);
-
/* Configure clock source */
mtk_timer_setup(evt, GPT_CLK_SRC, TIMER_CTRL_OP_FREERUN);
clocksource_mmio_init(evt->gpt_base + TIMER_CNT_REG(GPT_CLK_SRC),
@@ -241,10 +241,11 @@ static void __init mtk_timer_init(struct device_node *node)

/* Configure clock event */
mtk_timer_setup(evt, GPT_CLK_EVT, TIMER_CTRL_OP_REPEAT);
- mtk_timer_enable_irq(evt, GPT_CLK_EVT);
-
clockevents_config_and_register(&evt->dev, rate, 0x3,
0xffffffff);
+
+ mtk_timer_enable_irq(evt, GPT_CLK_EVT);
+
return;

err_clk_disable:
diff --git a/drivers/clocksource/pxa_timer.c b/drivers/clocksource/pxa_timer.c
index 941f3f344e08..d9438af2bbd6 100644
--- a/drivers/clocksource/pxa_timer.c
+++ b/drivers/clocksource/pxa_timer.c
@@ -163,7 +163,7 @@ static struct irqaction pxa_ost0_irq = {
.dev_id = &ckevt_pxa_osmr0,
};

-static void pxa_timer_common_init(int irq, unsigned long clock_tick_rate)
+static void __init pxa_timer_common_init(int irq, unsigned long clock_tick_rate)
{
timer_writel(0, OIER);
timer_writel(OSSR_M0 | OSSR_M1 | OSSR_M2 | OSSR_M3, OSSR);
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