#include <linux/clockchips.h>
#include <linux/interrupt.h>
#include <linux/export.h>
-#include <linux/sysdev.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/i8253.h>
#define HPET_MIN_CYCLES 128
#define HPET_MIN_PROG_DELTA (HPET_MIN_CYCLES + (HPET_MIN_CYCLES >> 1))
-#define EVT_TO_HPET_DEV(evt) container_of(evt, struct hpet_dev, evt)
-
/*
* HPET address is set in acpi/boot.c, when an ACPI entry exists
*/
char name[10];
};
+inline struct hpet_dev *EVT_TO_HPET_DEV(struct clock_event_device *evtdev)
+{
+ return container_of(evtdev, struct hpet_dev, evt);
+}
+
inline unsigned int hpet_readl(unsigned int a)
{
return readl(hpet_virt_address + a);
}
EXPORT_SYMBOL_GPL(hpet_rtc_timer_init);
+static void hpet_disable_rtc_channel(void)
+{
+ unsigned long cfg;
+ cfg = hpet_readl(HPET_T1_CFG);
+ cfg &= ~HPET_TN_ENABLE;
+ hpet_writel(cfg, HPET_T1_CFG);
+}
+
/*
* The functions below are called from rtc driver.
* Return 0 if HPET is not being used.
return 0;
hpet_rtc_flags &= ~bit_mask;
+ if (unlikely(!hpet_rtc_flags))
+ hpet_disable_rtc_channel();
+
return 1;
}
EXPORT_SYMBOL_GPL(hpet_mask_rtc_irq_bit);
static void hpet_rtc_timer_reinit(void)
{
- unsigned int cfg, delta;
+ unsigned int delta;
int lost_ints = -1;
- if (unlikely(!hpet_rtc_flags)) {
- cfg = hpet_readl(HPET_T1_CFG);
- cfg &= ~HPET_TN_ENABLE;
- hpet_writel(cfg, HPET_T1_CFG);
- return;
- }
+ if (unlikely(!hpet_rtc_flags))
+ hpet_disable_rtc_channel();
if (!(hpet_rtc_flags & RTC_PIE) || hpet_pie_limit)
delta = hpet_default_delta;