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Subject[PATCH] clocksource/drivers/rda: Add sched_clock_register for RDA8810PL SoC
Date
From: Enlin Mu <enlin.mu@unisoc.com>

Add sched_clock_register during init
bootup log before this patch:
[ 8.044000] UBIFS (ubi0:4): Mounting in unauthenticated mode
[ 8.044000] UBIFS error (ubi0:4 pid 176): ubifs_read_superblock: bad superblock, error 4
[ 8.048000] magic 0x6101831
[ 8.048000] crc 0x68cacdd8

bootup log after this patch:
[ 8.131116] UBIFS (ubi0:4): Mounting in unauthenticated mode
[ 8.132096] UBIFS error (ubi0:4 pid 176): ubifs_read_superblock: bad superblock, error 4
[ 8.133352] magic 0x6101831
[ 8.133905] crc 0x68cacdd8

Signed-off-by: Enlin Mu <enlin.mu@unisoc.com>
---
drivers/clocksource/timer-rda.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/clocksource/timer-rda.c b/drivers/clocksource/timer-rda.c
index fd1199c189bf..0be8e05970e2 100644
--- a/drivers/clocksource/timer-rda.c
+++ b/drivers/clocksource/timer-rda.c
@@ -13,6 +13,7 @@

#include <linux/init.h>
#include <linux/interrupt.h>
+#include <linux/sched_clock.h>

#include "timer-of.h"

@@ -153,7 +154,7 @@ static struct timer_of rda_ostimer_of = {
},
};

-static u64 rda_hwtimer_read(struct clocksource *cs)
+static u64 rda_hwtimer_clocksource_read(void)
{
void __iomem *base = timer_of_base(&rda_ostimer_of);
u32 lo, hi;
@@ -167,6 +168,11 @@ static u64 rda_hwtimer_read(struct clocksource *cs)
return ((u64)hi << 32) | lo;
}

+static u64 rda_hwtimer_read(struct clocksource *cs)
+{
+ return rda_hwtimer_clocksource_read();
+}
+
static struct clocksource rda_hwtimer_clocksource = {
.name = "rda-timer",
.rating = 400,
@@ -185,6 +191,7 @@ static int __init rda_timer_init(struct device_node *np)
return ret;

clocksource_register_hz(&rda_hwtimer_clocksource, rate);
+ sched_clock_register(rda_hwtimer_clocksource_read, 64, rate);

clockevents_config_and_register(&rda_ostimer_of.clkevt, rate,
0x2, UINT_MAX);
--
2.39.2

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