[PATCH 4.4 44/93] ARM: sa1100: register clocks early

From: Greg Kroah-Hartman
Date: Thu Oct 06 2016 - 05:00:43 EST


4.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>

commit 198b51e8a6a31d3a6f8e9dd9cade3635d0291f26 upstream.

Since we switched to use pxa_timer, we need to provide the OSTIMER0
clock. However, as the clock is initialised early, we need to provide
the clock early as well, so that pxa_timer can find it. Adding the
clock to the clkdev table at core_initcall() time is way too late.

Move the initialisation earlier.

Fixes: ee3a4020f7c9 ("ARM: 8250/1: sa1100: provide OSTIMER0 clock for pxa_timer")
Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@xxxxxxxxx>
Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
arch/arm/mach-sa1100/clock.c | 3 +--
arch/arm/mach-sa1100/generic.c | 1 +
arch/arm/mach-sa1100/generic.h | 2 ++
3 files changed, 4 insertions(+), 2 deletions(-)

--- a/arch/arm/mach-sa1100/clock.c
+++ b/arch/arm/mach-sa1100/clock.c
@@ -140,9 +140,8 @@ static struct clk_lookup sa11xx_clkregs[
CLKDEV_INIT(NULL, "OSTIMER0", &clk_36864),
};

-static int __init sa11xx_clk_init(void)
+int __init sa11xx_clk_init(void)
{
clkdev_add_table(sa11xx_clkregs, ARRAY_SIZE(sa11xx_clkregs));
return 0;
}
-core_initcall(sa11xx_clk_init);
--- a/arch/arm/mach-sa1100/generic.c
+++ b/arch/arm/mach-sa1100/generic.c
@@ -388,6 +388,7 @@ void __init sa1100_init_irq(void)
sa11x0_init_irq_nodt(IRQ_GPIO0_SC, irq_resource.start);

sa1100_init_gpio();
+ sa11xx_clk_init();
}

/*
--- a/arch/arm/mach-sa1100/generic.h
+++ b/arch/arm/mach-sa1100/generic.h
@@ -44,3 +44,5 @@ int sa11x0_pm_init(void);
#else
static inline int sa11x0_pm_init(void) { return 0; }
#endif
+
+int sa11xx_clk_init(void);