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>
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 50dfa3b..340ba4f 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -72,7 +72,7 @@
#ifdef CONFIG_IA64
static void __iomem *hpet_mctr;
-static cycle_t read_hpet(void)
+static cycle_t read_hpet(struct clocksource *cs)
{
return (cycle_t)read_counter((void __iomem *)hpet_mctr);
}
diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c
index ee19b6e..40bd8c6 100644
--- a/drivers/clocksource/acpi_pm.c
+++ b/drivers/clocksource/acpi_pm.c
@@ -57,7 +57,7 @@
return v2;
}
-static cycle_t acpi_pm_read(void)
+static cycle_t acpi_pm_read(struct clocksource *cs)
{
return (cycle_t)read_pmtmr();
}
@@ -83,7 +83,7 @@
}
__setup("acpi_pm_good", acpi_pm_good_setup);
-static cycle_t acpi_pm_read_slow(void)
+static cycle_t acpi_pm_read_slow(struct clocksource *cs)
{
return (cycle_t)acpi_pm_read_verified();
}
@@ -156,9 +156,9 @@
unsigned long count, delta;
mach_prepare_counter();
- value1 = clocksource_acpi_pm.read();
+ value1 = clocksource_acpi_pm.read(&clocksource_acpi_pm);
mach_countup(&count);
- value2 = clocksource_acpi_pm.read();
+ value2 = clocksource_acpi_pm.read(&clocksource_acpi_pm);
delta = (value2 - value1) & ACPI_PM_MASK;
/* Check that the PMTMR delta is within 5% of what we expect */
@@ -195,9 +195,9 @@
/* "verify" this timing source: */
for (j = 0; j < ACPI_PM_MONOTONICITY_CHECKS; j++) {
udelay(100 * j);
- value1 = clocksource_acpi_pm.read();
+ value1 = clocksource_acpi_pm.read(&clocksource_acpi_pm);
for (i = 0; i < ACPI_PM_READ_CHECKS; i++) {
- value2 = clocksource_acpi_pm.read();
+ value2 = clocksource_acpi_pm.read(&clocksource_acpi_pm);
if (value2 == value1)
continue;
if (value2 > value1)
diff --git a/drivers/clocksource/cyclone.c b/drivers/clocksource/cyclone.c
index 8615059..64e528e 100644
--- a/drivers/clocksource/cyclone.c
+++ b/drivers/clocksource/cyclone.c
@@ -19,7 +19,7 @@
int use_cyclone = 0;
static void __iomem *cyclone_ptr;
-static cycle_t read_cyclone(void)
+static cycle_t read_cyclone(struct clocksource *cs)
{
return (cycle_t)readl(cyclone_ptr);
}
diff --git a/drivers/clocksource/scx200_hrt.c b/drivers/clocksource/scx200_hrt.c
index b92da67..27f4d963 100644
--- a/drivers/clocksource/scx200_hrt.c
+++ b/drivers/clocksource/scx200_hrt.c
@@ -43,7 +43,7 @@
/* The base timer frequency, * 27 if selected */
#define HRT_FREQ 1000000
-static cycle_t read_hrt(void)
+static cycle_t read_hrt(struct clocksource *cs)
{
/* Read the timer value */
return (cycle_t) inl(scx200_cb_base + SCx200_TIMER_OFFSET);
diff --git a/drivers/clocksource/tcb_clksrc.c b/drivers/clocksource/tcb_clksrc.c
index 254f106..01b886e 100644
--- a/drivers/clocksource/tcb_clksrc.c
+++ b/drivers/clocksource/tcb_clksrc.c
@@ -39,7 +39,7 @@
static void __iomem *tcaddr;
-static cycle_t tc_get_cycles(void)
+static cycle_t tc_get_cycles(struct clocksource *cs)
{
unsigned long flags;
u32 lower, upper;