The following commit has been merged into the timers/urgent branch of tip: Commit-ID: bc6717d55d07110d8f3c6d31ec2af50c11b07091 Gitweb: https://git.kernel.org/tip/bc6717d55d07110d8f3c6d31ec2af50c11b07091 Author: Guo Ren <guo...@linux.alibaba.com> AuthorDate: Tue, 18 Aug 2020 07:31:17 Committer: Daniel Lezcano <daniel.lezc...@linaro.org> CommitterDate: Mon, 24 Aug 2020 13:01:39 +02:00
clocksource/drivers/timer-gx6605s: Fixup counter reload When the timer counts to the upper limit, an overflow interrupt is generated, and the count is reset with the value in the TIME_INI register. But the software expects to start counting from 0 when the count overflows, so it forces TIME_INI to 0 to solve the potential interrupt storm problem. Signed-off-by: Guo Ren <guo...@linux.alibaba.com> Tested-by: Xu Kai <xu...@nationalchip.com> Cc: Daniel Lezcano <daniel.lezc...@linaro.org> Cc: Thomas Gleixner <t...@linutronix.de> Signed-off-by: Daniel Lezcano <daniel.lezc...@linaro.org> Link: https://lore.kernel.org/r/1597735877-71115-1-git-send-email-guo...@kernel.org --- drivers/clocksource/timer-gx6605s.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/clocksource/timer-gx6605s.c b/drivers/clocksource/timer-gx6605s.c index 80d0939..8d386ad 100644 --- a/drivers/clocksource/timer-gx6605s.c +++ b/drivers/clocksource/timer-gx6605s.c @@ -28,6 +28,7 @@ static irqreturn_t gx6605s_timer_interrupt(int irq, void *dev) void __iomem *base = timer_of_base(to_timer_of(ce)); writel_relaxed(GX6605S_STATUS_CLR, base + TIMER_STATUS); + writel_relaxed(0, base + TIMER_INI); ce->event_handler(ce);
