clocksource: pass clocksource to read() callback

Pass clocksource pointer to the read() callback for clocksources.  This
allows us to share the callback between multiple instances.

[hugh@veritas.com: fix powerpc build of clocksource pass clocksource mods]
[akpm@linux-foundation.org: cleanup]
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Acked-by: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

16 files changed, 18 insertions, 18 deletions

diff --git a/arch/arm/mach-at91/at91rm9200_time.c b/arch/arm/mach-at91/at91rm9200_time.c
index 1ff1bda0a89..309f3511aa2 100644
--- a/arch/arm/mach-at91/at91rm9200_time.c
+++ b/arch/arm/mach-at91/at91rm9200_time.c
@@ -85,7 +85,7 @@ static struct irqaction at91rm9200_timer_irq = {
 	.handler	= at91rm9200_timer_interrupt
 };
 
-static cycle_t read_clk32k(void)
+static cycle_t read_clk32k(struct clocksource *cs)
 {
 	return read_CRTR();
 }
diff --git a/arch/arm/mach-at91/at91sam926x_time.c b/arch/arm/mach-at91/at91sam926x_time.c
index b63e1d5f1ba..4bd56aee437 100644
--- a/arch/arm/mach-at91/at91sam926x_time.c
+++ b/arch/arm/mach-at91/at91sam926x_time.c
@@ -31,7 +31,7 @@ static u32 pit_cnt;		/* access only w/system irq blocked */
  * Clocksource:  just a monotonic counter of MCK/16 cycles.
  * We don't care whether or not PIT irqs are enabled.
  */
-static cycle_t read_pit_clk(void)
+static cycle_t read_pit_clk(struct clocksource *cs)
 {
 	unsigned long flags;
 	u32 elapsed;
diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c
index f8bcd29d17a..6c227d4ba99 100644
--- a/arch/arm/mach-davinci/time.c
+++ b/arch/arm/mach-davinci/time.c
@@ -238,7 +238,7 @@ static void __init timer_init(void)
 /*
  * clocksource
  */
-static cycle_t read_cycles(void)
+static cycle_t read_cycles(struct clocksource *cs)
 {
 	struct timer_s *t = &timers[TID_CLOCKSOURCE];
 
diff --git a/arch/arm/mach-imx/time.c b/arch/arm/mach-imx/time.c
index aff0ebcfa84..5aef18b599e 100644
--- a/arch/arm/mach-imx/time.c
+++ b/arch/arm/mach-imx/time.c
@@ -73,7 +73,7 @@ static void __init imx_timer_hardware_init(void)
 	IMX_TCTL(TIMER_BASE) = TCTL_FRR | TCTL_CLK_PCLK1 | TCTL_TEN;
 }
 
-cycle_t imx_get_cycles(void)
+cycle_t imx_get_cycles(struct clocksource *cs)
 {
 	return IMX_TCN(TIMER_BASE);
 }
diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index f4656d2ac8a..1e93dfee754 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -401,7 +401,7 @@ void __init ixp4xx_sys_init(void)
 /*
  * clocksource
  */
-cycle_t ixp4xx_get_cycles(void)
+cycle_t ixp4xx_get_cycles(struct clocksource *cs)
 {
 	return *IXP4XX_OSTS;
 }
diff --git a/arch/arm/mach-msm/timer.c b/arch/arm/mach-msm/timer.c
index 444d9c0f5ca..4855b8ca510 100644
--- a/arch/arm/mach-msm/timer.c
+++ b/arch/arm/mach-msm/timer.c
@@ -57,12 +57,12 @@ static irqreturn_t msm_timer_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static cycle_t msm_gpt_read(void)
+static cycle_t msm_gpt_read(struct clocksource *cs)
 {
 	return readl(MSM_GPT_BASE + TIMER_COUNT_VAL);
 }
 
-static cycle_t msm_dgt_read(void)
+static cycle_t msm_dgt_read(struct clocksource *cs)
 {
 	return readl(MSM_DGT_BASE + TIMER_COUNT_VAL) >> MSM_DGT_SHIFT;
 }
diff --git a/arch/arm/mach-netx/time.c b/arch/arm/mach-netx/time.c
index f201fddb594..82801dbf057 100644
--- a/arch/arm/mach-netx/time.c
+++ b/arch/arm/mach-netx/time.c
@@ -104,7 +104,7 @@ static struct irqaction netx_timer_irq = {
 	.handler	= netx_timer_interrupt,
 };
 
-cycle_t netx_get_cycles(void)
+cycle_t netx_get_cycles(struct clocksource *cs)
 {
 	return readl(NETX_GPIO_COUNTER_CURRENT(TIMER_CLOCKSOURCE));
 }
diff --git a/arch/arm/mach-ns9xxx/time-ns9360.c b/arch/arm/mach-ns9xxx/time-ns9360.c
index 41df6972176..77281260358 100644
--- a/arch/arm/mach-ns9xxx/time-ns9360.c
+++ b/arch/arm/mach-ns9xxx/time-ns9360.c
@@ -25,7 +25,7 @@
 #define TIMER_CLOCKEVENT 1
 static u32 latch;
 
-static cycle_t ns9360_clocksource_read(void)
+static cycle_t ns9360_clocksource_read(struct clocksource *cs)
 {
 	return __raw_readl(SYS_TR(TIMER_CLOCKSOURCE));
 }
diff --git a/arch/arm/mach-omap1/time.c b/arch/arm/mach-omap1/time.c
index 495a32c287b..4d56408d3cf 100644
--- a/arch/arm/mach-omap1/time.c
+++ b/arch/arm/mach-omap1/time.c
@@ -198,7 +198,7 @@ static struct irqaction omap_mpu_timer2_irq = {
 	.handler	= omap_mpu_timer2_interrupt,
 };
 
-static cycle_t mpu_read(void)
+static cycle_t mpu_read(struct clocksource *cs)
 {
 	return ~omap_mpu_timer_read(1);
 }
diff --git a/arch/arm/mach-omap2/timer-gp.c b/arch/arm/mach-omap2/timer-gp.c
index 9fc13a2cc3f..1cb2c0909c2 100644
--- a/arch/arm/mach-omap2/timer-gp.c
+++ b/arch/arm/mach-omap2/timer-gp.c
@@ -138,7 +138,7 @@ static inline void __init omap2_gp_clocksource_init(void) {}
  * clocksource
  */
 static struct omap_dm_timer *gpt_clocksource;
-static cycle_t clocksource_read_cycles(void)
+static cycle_t clocksource_read_cycles(struct clocksource *cs)
 {
 	return (cycle_t)omap_dm_timer_read_counter(gpt_clocksource);
 }
diff --git a/arch/arm/mach-pxa/time.c b/arch/arm/mach-pxa/time.c
index 8eb3830fbb0..750c448db67 100644
--- a/arch/arm/mach-pxa/time.c
+++ b/arch/arm/mach-pxa/time.c
@@ -125,7 +125,7 @@ static struct clock_event_device ckevt_pxa_osmr0 = {
 	.set_mode	= pxa_osmr0_set_mode,
 };
 
-static cycle_t pxa_read_oscr(void)
+static cycle_t pxa_read_oscr(struct clocksource *cs)
 {
 	return OSCR;
 }
diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c
index 9ab947c14f2..942e1a7eb9b 100644
--- a/arch/arm/mach-realview/core.c
+++ b/arch/arm/mach-realview/core.c
@@ -715,7 +715,7 @@ static struct irqaction realview_timer_irq = {
 	.handler	= realview_timer_interrupt,
 };
 
-static cycle_t realview_get_cycles(void)
+static cycle_t realview_get_cycles(struct clocksource *cs)
 {
 	return ~readl(timer3_va_base + TIMER_VALUE);
 }
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index 565776680d8..1f929c391af 100644
--- a/arch/arm/mach-versatile/core.c
+++ b/arch/arm/mach-versatile/core.c
@@ -948,7 +948,7 @@ static struct irqaction versatile_timer_irq = {
 	.handler	= versatile_timer_interrupt,
 };
 
-static cycle_t versatile_get_cycles(void)
+static cycle_t versatile_get_cycles(struct clocksource *cs)
 {
 	return ~readl(TIMER3_VA_BASE + TIMER_VALUE);
 }
diff --git a/arch/arm/plat-mxc/time.c b/arch/arm/plat-mxc/time.c
index ef1b3cd85bd..dab3357196f 100644
--- a/arch/arm/plat-mxc/time.c
+++ b/arch/arm/plat-mxc/time.c
@@ -36,7 +36,7 @@ static enum clock_event_mode clockevent_mode = CLOCK_EVT_MODE_UNUSED;
 
 /* clock source */
 
-static cycle_t mxc_get_cycles(void)
+static cycle_t mxc_get_cycles(struct clocksource *cs)
 {
 	return __raw_readl(TIMER_BASE + MXC_TCN);
 }
diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c
index d1797147732..433021f3d7c 100644
--- a/arch/arm/plat-omap/common.c
+++ b/arch/arm/plat-omap/common.c
@@ -185,7 +185,7 @@ console_initcall(omap_add_serial_console);
 
 #include <linux/clocksource.h>
 
-static cycle_t omap_32k_read(void)
+static cycle_t omap_32k_read(struct clocksource *cs)
 {
 	return omap_readl(TIMER_32K_SYNCHRONIZED);
 }
@@ -207,7 +207,7 @@ unsigned long long sched_clock(void)
 {
 	unsigned long long ret;
 
-	ret = (unsigned long long)omap_32k_read();
+	ret = (unsigned long long)omap_32k_read(&clocksource_32k);
 	ret = (ret * clocksource_32k.mult_orig) >> clocksource_32k.shift;
 	return ret;
 }
diff --git a/arch/arm/plat-orion/time.c b/arch/arm/plat-orion/time.c
index 6fa2923e6dc..2faf9dba4ef 100644
--- a/arch/arm/plat-orion/time.c
+++ b/arch/arm/plat-orion/time.c
@@ -41,7 +41,7 @@ static u32 ticks_per_jiffy;
 /*
  * Clocksource handling.
  */
-static cycle_t orion_clksrc_read(void)
+static cycle_t orion_clksrc_read(struct clocksource *cs)
 {
 	return 0xffffffff - readl(TIMER0_VAL);
 }