Commit da4a686a authored by Rob Herring's avatar Rob Herring
Browse files

ARM: smp_twd: convert to use CLKSRC_OF init 



Now that we have OF based init with CLKSRC_OF, convert smp_twd init
function to use it and covert all callers of
twd_local_timer_of_register.

Signed-off-by: default avatarRob Herring <rob.herring@calxeda.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-omap@vger.kernel.org
Cc: spear-devel@list.st.com
Reviewed-by: default avatarStephen Warren <swarren@nvidia.com>
Acked-by: default avatarSantosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: default avatarTony Lindgren <tony@atomide.com>
Acked-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 1d16cfb3

arch/arm/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -1597,6 +1597,7 @@ config HAVE_ARM_ARCH_TIMER 
config HAVE_ARM_TWD

	bool

	depends on SMP

	select CLKSRC_OF if OF

	help

	  This options enables support for the ARM timer and watchdog unit

arch/arm/include/asm/smp_twd.h

+0 −8
Original line number Diff line number Diff line
@@ -34,12 +34,4 @@ struct twd_local_timer name __initdata = { \ 


int twd_local_timer_register(struct twd_local_timer *);



#ifdef CONFIG_HAVE_ARM_TWD

void twd_local_timer_of_register(void);

#else

static inline void twd_local_timer_of_register(void)

{

}

#endif



#endif

arch/arm/kernel/smp_twd.c

+4 −13
Original line number Diff line number Diff line
@@ -362,25 +362,13 @@ int __init twd_local_timer_register(struct twd_local_timer *tlt) 
}



#ifdef CONFIG_OF

const static struct of_device_id twd_of_match[] __initconst = {

	{ .compatible = "arm,cortex-a9-twd-timer",	},

	{ .compatible = "arm,cortex-a5-twd-timer",	},

	{ .compatible = "arm,arm11mp-twd-timer",	},

	{ },

};



void __init twd_local_timer_of_register(void)

static void __init twd_local_timer_of_register(struct device_node *np)

{

	struct device_node *np;

	int err;



	if (!is_smp() || !setup_max_cpus)

		return;



	np = of_find_matching_node(NULL, twd_of_match);

	if (!np)

		return;



	twd_ppi = irq_of_parse_and_map(np, 0);

	if (!twd_ppi) {

		err = -EINVAL;
@@ -398,4 +386,7 @@ void __init twd_local_timer_of_register(void) 
out:

	WARN(err, "twd_local_timer_of_register failed (%d)\n", err);

}

CLOCKSOURCE_OF_DECLARE(arm_twd_a9, "arm,cortex-a9-twd-timer", twd_local_timer_of_register);

CLOCKSOURCE_OF_DECLARE(arm_twd_a5, "arm,cortex-a5-twd-timer", twd_local_timer_of_register);

CLOCKSOURCE_OF_DECLARE(arm_twd_11mp, "arm,arm11mp-twd-timer", twd_local_timer_of_register);

#endif

arch/arm/mach-highbank/highbank.c

+2 −3
Original line number Diff line number Diff line
@@ -32,7 +32,6 @@ 
#include <asm/cacheflush.h>

#include <asm/cputype.h>

#include <asm/smp_plat.h>

#include <asm/smp_twd.h>

#include <asm/hardware/arm_timer.h>

#include <asm/hardware/timer-sp.h>

#include <asm/hardware/cache-l2x0.h>
@@ -119,10 +118,10 @@ static void __init highbank_timer_init(void) 
	sp804_clocksource_and_sched_clock_init(timer_base + 0x20, "timer1");

	sp804_clockevents_init(timer_base, irq, "timer0");



	twd_local_timer_of_register();



	arch_timer_of_register();

	arch_timer_sched_clock_init();



	clocksource_of_init();

}



static void highbank_power_off(void)

arch/arm/mach-imx/mach-imx6q.c

+2 −3
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ 


#include <linux/clk.h>

#include <linux/clkdev.h>

#include <linux/clocksource.h>

#include <linux/cpu.h>

#include <linux/delay.h>

#include <linux/export.h>
@@ -28,11 +29,9 @@ 
#include <linux/regmap.h>

#include <linux/micrel_phy.h>

#include <linux/mfd/syscon.h>

#include <asm/smp_twd.h>

#include <asm/hardware/cache-l2x0.h>

#include <asm/mach/arch.h>

#include <asm/mach/map.h>

#include <asm/mach/time.h>

#include <asm/system_misc.h>



#include "common.h"
@@ -292,7 +291,7 @@ static void __init imx6q_init_irq(void) 
static void __init imx6q_timer_init(void)

{

	mx6q_clocks_init();

	twd_local_timer_of_register();

	clocksource_of_init();

	imx_print_silicon_rev("i.MX6Q", imx6q_revision());

}

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