[patch 29/29] x86/hpet: Use channel for legacy clockevent storage

From: Thomas Gleixner
Date: Sun Jun 23 2019 - 09:28:16 EST


All preparations are done. Use the channel storage for the legacy
clockevent and remove the static variable.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
arch/x86/kernel/hpet.c | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)

--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -66,11 +66,6 @@ bool boot_hpet_disable;
bool hpet_force_user;
static bool hpet_verbose;

-/*
- * The HPET clock event device wrapped in a channel for conversion
- */
-static struct hpet_channel hpet_channel0;
-
static inline
struct hpet_channel *clockevent_to_channel(struct clock_event_device *evt)
{
@@ -903,7 +898,7 @@ int __init hpet_enable(void)
clocksource_register_hz(&clocksource_hpet, (u32)hpet_freq);

if (id & HPET_ID_LEGSUP) {
- hpet_legacy_clockevent_register(&hpet_channel0);
+ hpet_legacy_clockevent_register(&hpet_base.channels[0]);
hpet_base.channels[0].mode = HPET_MODE_LEGACY;
if (IS_ENABLED(CONFIG_HPET_EMULATE_RTC))
hpet_base.channels[1].mode = HPET_MODE_LEGACY;
@@ -1088,7 +1083,7 @@ int hpet_rtc_timer_init(void)
return 0;

if (!hpet_default_delta) {
- struct clock_event_device *evt = &hpet_channel0.evt;
+ struct clock_event_device *evt = &hpet_base.channels[0].evt;
uint64_t clc;

clc = (uint64_t) evt->mult * NSEC_PER_SEC;
@@ -1186,7 +1181,7 @@ int hpet_set_periodic_freq(unsigned long
if (freq <= DEFAULT_RTC_INT_FREQ) {
hpet_pie_limit = DEFAULT_RTC_INT_FREQ / freq;
} else {
- struct clock_event_device *evt = &hpet_channel0.evt;
+ struct clock_event_device *evt = &hpet_base.channels[0].evt;

clc = (uint64_t) evt->mult * NSEC_PER_SEC;
do_div(clc, freq);