[tip:x86/timers] x86/hpet: Coding style cleanup

[tip-bot for Ingo Molnar <tipbot@zytor.com>]

Commit-ID:  0b5c597de6aa30000480d6add2f37ef7de3f9312
Gitweb:     https://git.kernel.org/tip/0b5c597de6aa30000480d6add2f37ef7de3f9312
Author:     Ingo Molnar <mingo@kernel.org>
AuthorDate: Sun, 23 Jun 2019 15:23:57 +0200
Committer:  Thomas Gleixner <tglx@linutronix.de>
CommitDate: Fri, 28 Jun 2019 00:57:21 +0200

x86/hpet: Coding style cleanup

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Andi Kleen <andi.kleen@intel.com>
Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Ravi Shankar <ravi.v.shankar@intel.com>
Link: https://lkml.kernel.org/r/20190623132435.637420368@linutronix.de

---
 arch/x86/kernel/hpet.c | 43 ++++++++++++++++++++++++++-----------------
 1 file changed, 26 insertions(+), 17 deletions(-)

diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index 1a389a2ff42a..ed2d556f2c96 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -131,26 +131,33 @@ EXPORT_SYMBOL_GPL(is_hpet_enabled);
 
 static void _hpet_print_config(const char *function, int line)
 {
-	u32 i, timers, l, h;
+	u32 i, id, period, cfg, status, channels, l, h;
+
 	pr_info("%s(%d):\n", function, line);
-	l = hpet_readl(HPET_ID);
-	h = hpet_readl(HPET_PERIOD);
-	timers = ((l & HPET_ID_NUMBER) >> HPET_ID_NUMBER_SHIFT) + 1;
-	pr_info("ID: 0x%x, PERIOD: 0x%x\n", l, h);
-	l = hpet_readl(HPET_CFG);
-	h = hpet_readl(HPET_STATUS);
-	pr_info("CFG: 0x%x, STATUS: 0x%x\n", l, h);
+
+	id = hpet_readl(HPET_ID);
+	period = hpet_readl(HPET_PERIOD);
+	pr_info("ID: 0x%x, PERIOD: 0x%x\n", id, period);
+
+	cfg = hpet_readl(HPET_CFG);
+	status = hpet_readl(HPET_STATUS);
+	pr_info("CFG: 0x%x, STATUS: 0x%x\n", cfg, status);
+
 	l = hpet_readl(HPET_COUNTER);
 	h = hpet_readl(HPET_COUNTER+4);
 	pr_info("COUNTER_l: 0x%x, COUNTER_h: 0x%x\n", l, h);
 
-	for (i = 0; i < timers; i++) {
+	channels = ((id & HPET_ID_NUMBER) >> HPET_ID_NUMBER_SHIFT) + 1;
+
+	for (i = 0; i < channels; i++) {
 		l = hpet_readl(HPET_Tn_CFG(i));
 		h = hpet_readl(HPET_Tn_CFG(i)+4);
 		pr_info("T%d: CFG_l: 0x%x, CFG_h: 0x%x\n", i, l, h);
+
 		l = hpet_readl(HPET_Tn_CMP(i));
 		h = hpet_readl(HPET_Tn_CMP(i)+4);
 		pr_info("T%d: CMP_l: 0x%x, CMP_h: 0x%x\n", i, l, h);
+
 		l = hpet_readl(HPET_Tn_ROUTE(i));
 		h = hpet_readl(HPET_Tn_ROUTE(i)+4);
 		pr_info("T%d ROUTE_l: 0x%x, ROUTE_h: 0x%x\n", i, l, h);
@@ -216,6 +223,7 @@ static void hpet_reserve_platform_timers(unsigned int id) { }
 static void hpet_stop_counter(void)
 {
 	u32 cfg = hpet_readl(HPET_CFG);
+
 	cfg &= ~HPET_CFG_ENABLE;
 	hpet_writel(cfg, HPET_CFG);
 }
@@ -229,6 +237,7 @@ static void hpet_reset_counter(void)
 static void hpet_start_counter(void)
 {
 	unsigned int cfg = hpet_readl(HPET_CFG);
+
 	cfg |= HPET_CFG_ENABLE;
 	hpet_writel(cfg, HPET_CFG);
 }
@@ -393,7 +402,7 @@ static int hpet_legacy_resume(struct clock_event_device *evt)
 }
 
 static int hpet_legacy_next_event(unsigned long delta,
-			struct clock_event_device *evt)
+				  struct clock_event_device *evt)
 {
 	return hpet_next_event(delta, 0);
 }
@@ -1142,6 +1151,7 @@ EXPORT_SYMBOL_GPL(hpet_rtc_timer_init);
 static void hpet_disable_rtc_channel(void)
 {
 	u32 cfg = hpet_readl(HPET_T1_CFG);
+
 	cfg &= ~HPET_TN_ENABLE;
 	hpet_writel(cfg, HPET_T1_CFG);
 }
@@ -1183,8 +1193,7 @@ int hpet_set_rtc_irq_bit(unsigned long bit_mask)
 }
 EXPORT_SYMBOL_GPL(hpet_set_rtc_irq_bit);
 
-int hpet_set_alarm_time(unsigned char hrs, unsigned char min,
-			unsigned char sec)
+int hpet_set_alarm_time(unsigned char hrs, unsigned char min, unsigned char sec)
 {
 	if (!is_hpet_enabled())
 		return 0;
@@ -1204,15 +1213,16 @@ int hpet_set_periodic_freq(unsigned long freq)
 	if (!is_hpet_enabled())
 		return 0;
 
-	if (freq <= DEFAULT_RTC_INT_FREQ)
+	if (freq <= DEFAULT_RTC_INT_FREQ) {
 		hpet_pie_limit = DEFAULT_RTC_INT_FREQ / freq;
-	else {
+	} else {
 		clc = (uint64_t) hpet_clockevent.mult * NSEC_PER_SEC;
 		do_div(clc, freq);
 		clc >>= hpet_clockevent.shift;
 		hpet_pie_delta = clc;
 		hpet_pie_limit = 0;
 	}
+
 	return 1;
 }
 EXPORT_SYMBOL_GPL(hpet_set_periodic_freq);
@@ -1272,8 +1282,7 @@ irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id)
 		hpet_prev_update_sec = curr_time.tm_sec;
 	}
 
-	if (hpet_rtc_flags & RTC_PIE &&
-	    ++hpet_pie_count >= hpet_pie_limit) {
+	if (hpet_rtc_flags & RTC_PIE && ++hpet_pie_count >= hpet_pie_limit) {
 		rtc_int_flag |= RTC_PF;
 		hpet_pie_count = 0;
 	}
@@ -1282,7 +1291,7 @@ irqreturn_t hpet_rtc_interrupt(int irq, void *dev_id)
 	    (curr_time.tm_sec == hpet_alarm_time.tm_sec) &&
 	    (curr_time.tm_min == hpet_alarm_time.tm_min) &&
 	    (curr_time.tm_hour == hpet_alarm_time.tm_hour))
-			rtc_int_flag |= RTC_AF;
+		rtc_int_flag |= RTC_AF;
 
 	if (rtc_int_flag) {
 		rtc_int_flag |= (RTC_IRQF | (RTC_NUM_INTS << 8));