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net: ethernet: ti: cpts: drop excessive writes to CTRL and INT_EN regs 

CPTS module and IRQs are always enabled when CPTS is registered,
before starting overflow check work, and disabled during
deregistration, when overflow check work has been canceled already.
So, It doesn't require to (re)enable CPTS module and IRQs in
cpts_overflow_check().

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Grygorii Strashko 2016-12-06 18:00:40 -06:00 committed by David S. Miller
parent e4439fa838
commit 2a79df3ee9
1 changed files with 0 additions and 2 deletions
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2
drivers/net/ethernet/ti/cpts.c
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@ -243,8 +243,6 @@ static void cpts_overflow_check(struct work_struct *work)
struct timespec64 ts;
struct cpts *cpts = container_of(work, struct cpts, overflow_work.work);
cpts_write32(cpts, CPTS_EN, control);
cpts_write32(cpts, TS_PEND_EN, int_enable);
cpts_ptp_gettime(&cpts->info, &ts);
pr_debug("cpts overflow check at %lld.%09lu\n", ts.tv_sec, ts.tv_nsec);
schedule_delayed_work(&cpts->overflow_work, CPTS_OVERFLOW_PERIOD);