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

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Date:   Thu,  6 Oct 2016 10:29:14 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
        Russell King <rmk+kernel@...linux.org.uk>
Subject: [PATCH 4.4 44/93] ARM: sa1100: register clocks early

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

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

From: Russell King <rmk+kernel@...linux.org.uk>

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@...il.com>
Signed-off-by: Russell King <rmk+kernel@...linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 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);