2015-05-16 9:58 GMT+02:00 Yingjoe Chen <yingjoe.chen@xxxxxxxxxxxx>:
> Spurious mtk timer interrupt is noticed at boot and cause kernel
> crash. It seems if GPT is enabled, it will latch irq status even
> when its IRQ is disabled. When irq is enabled afterward, we see
> spurious interrupt.
> Change init flow to only enable GPT_CLK_SRC at mtk_timer_init.
>
> Signed-off-by: Yingjoe Chen <yingjoe.chen@xxxxxxxxxxxx>
> ---
> drivers/clocksource/mtk_timer.c | 15 ++++++++++-----
> 1 file changed, 10 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/clocksource/mtk_timer.c b/drivers/clocksource/mtk_timer.c
> index 68ab423..91206f9 100644
> --- a/drivers/clocksource/mtk_timer.c
> +++ b/drivers/clocksource/mtk_timer.c
> @@ -157,8 +157,11 @@ static void mtk_timer_global_reset(struct mtk_clock_event_device *evt)
> }
>
> static void
> -mtk_timer_setup(struct mtk_clock_event_device *evt, u8 timer, u8 option)
> +mtk_timer_setup(struct mtk_clock_event_device *evt,
> + u8 timer, u8 option, u8 enable)
Nicer would be:
static void mtk_timer_setup(struct mtk_clock_event_device *evt, u8 timer,
u8 option, u8 enable)
Apart from that parameter enable should be of type bool.
Thanks,
Matthias
--
motzblog.wordpress.com
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