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Commit 633ef4c7 authored by Shawn Guo's avatar Shawn Guo
Browse files

ARM: mxs: use CLKSRC_OF helper to initialize timer 



Select CLKSRC_OF and use clocksource_of_init() to initialize timer, so
that the call to mxs_timer_init() in clock driver can be removed.

Signed-off-by: default avatarShawn Guo <shawn.guo@linaro.org>
parent 3ed628a8

arch/arm/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -473,6 +473,7 @@ config ARCH_MXS 
	select ARCH_REQUIRE_GPIOLIB

	select CLKDEV_LOOKUP

	select CLKSRC_MMIO

	select CLKSRC_OF

	select COMMON_CLK

	select GENERIC_CLOCKEVENTS

	select HAVE_CLK_PREPARE

arch/arm/mach-mxs/include/mach/common.h

+0 −1
Original line number Diff line number Diff line
@@ -13,7 +13,6 @@ 


extern const u32 *mxs_get_ocotp(void);

extern int mxs_reset_block(void __iomem *);

extern void mxs_timer_init(void);

extern void mxs_restart(char, const char *);

extern int mxs_saif_clkmux_select(unsigned int clkmux);

arch/arm/mach-mxs/mach-mxs.c

+3 −0
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/can/platform/flexcan.h>

#include <linux/delay.h>

#include <linux/err.h>
@@ -168,11 +169,13 @@ static struct of_dev_auxdata mxs_auxdata_lookup[] __initdata = { 
static void __init imx23_timer_init(void)

{

	mx23_clocks_init();

	clocksource_of_init();

}



static void __init imx28_timer_init(void)

{

	mx28_clocks_init();

	clocksource_of_init();

}



enum mac_oui {

arch/arm/mach-mxs/timer.c

+2 −8
Original line number Diff line number Diff line
@@ -242,18 +242,11 @@ static int __init mxs_clocksource_init(struct clk *timer_clk) 
	return 0;

}



void __init mxs_timer_init(void)

static void __init mxs_timer_init(struct device_node *np)

{

	struct device_node *np;

	struct clk *timer_clk;

	int irq;



	np = of_find_compatible_node(NULL, NULL, "fsl,timrot");

	if (!np) {

		pr_err("%s: failed find timrot node\n", __func__);

		return;

	}



	timer_clk = clk_get_sys("timrot", NULL);

	if (IS_ERR(timer_clk)) {

		pr_err("%s: failed to get clk\n", __func__);
@@ -304,3 +297,4 @@ void __init mxs_timer_init(void) 
	irq = irq_of_parse_and_map(np, 0);

	setup_irq(irq, &mxs_timer_irq);

}

CLOCKSOURCE_OF_DECLARE(mxs, "fsl,timrot", mxs_timer_init)

drivers/clk/mxs/clk-imx23.c

+0 −3
Original line number Diff line number Diff line
@@ -15,7 +15,6 @@ 
#include <linux/init.h>

#include <linux/io.h>

#include <linux/of.h>

#include <mach/common.h>

#include <mach/mx23.h>

#include "clk.h"
@@ -165,7 +164,5 @@ int __init mx23_clocks_init(void) 
	for (i = 0; i < ARRAY_SIZE(clks_init_on); i++)

		clk_prepare_enable(clks[clks_init_on[i]]);



	mxs_timer_init();



	return 0;

}