diff options
| author | Enlin Mu <enlin.mu@unisoc.com> | 2025-11-07 14:33:47 +0800 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2025-11-26 11:25:11 +0100 |
| commit | 627f3f3716a3591f5e6a6bd124c95eef85444080 (patch) | |
| tree | c4abe246cbefc6f35654054882ed2f15b240f8c4 | |
| parent | 6a2416892e8942f5e2bfe9b85c0164f410a53a2d (diff) | |
clocksource/drivers/rda: Add sched_clock_register for RDA8810PL SoC
The current system log timestamp accuracy is tick based, which can not
meet the usage requirements and needs to reach nanoseconds.
Therefore, the sched_clock_register function needs to be added.
[ dlezcano: Fixed typos ]
Signed-off-by: Enlin Mu <enlin.mu@unisoc.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://patch.msgid.link/20251107063347.3692-1-enlin.mu@linux.dev
| -rw-r--r-- | drivers/clocksource/timer-rda.c | 9 |
1 files changed, 8 insertions, 1 deletions
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); |