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authorShawn Guo <shawn.guo@linaro.org>2013-03-25 14:53:08 +0800
committerShawn Guo <shawn.guo@linaro.org>2013-04-01 16:30:01 +0800
commit633ef4c7d18982d184242d42056c622a433d93fe (patch)
tree083c25c02198299cd32d855ffd4b35224e4f7771 /arch/arm
parent3ed628a8122112ee796cd643e2478c4a6def234c (diff)
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: Shawn Guo <shawn.guo@linaro.org>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/Kconfig1
-rw-r--r--arch/arm/mach-mxs/include/mach/common.h1
-rw-r--r--arch/arm/mach-mxs/mach-mxs.c3
-rw-r--r--arch/arm/mach-mxs/timer.c10
4 files changed, 6 insertions, 9 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 865c25ded153..5a1f0c9e0ab0 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -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
diff --git a/arch/arm/mach-mxs/include/mach/common.h b/arch/arm/mach-mxs/include/mach/common.h
index be5a9c93cb2a..e043c4735b5a 100644
--- a/arch/arm/mach-mxs/include/mach/common.h
+++ b/arch/arm/mach-mxs/include/mach/common.h
@@ -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);
diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
index e7b781d3788f..c1c0fb414c28 100644
--- a/arch/arm/mach-mxs/mach-mxs.c
+++ b/arch/arm/mach-mxs/mach-mxs.c
@@ -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 {
diff --git a/arch/arm/mach-mxs/timer.c b/arch/arm/mach-mxs/timer.c
index 421020498a1b..fe2903d7939a 100644
--- a/arch/arm/mach-mxs/timer.c
+++ b/arch/arm/mach-mxs/timer.c
@@ -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)