From 2a79df3ee9679dd1433ef9baa87ec395355eb0b4 Mon Sep 17 00:00:00 2001 From: Grygorii Strashko Date: Tue, 6 Dec 2016 18:00:40 -0600 Subject: [PATCH] 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 Acked-by: Richard Cochran Signed-off-by: David S. Miller --- drivers/net/ethernet/ti/cpts.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/net/ethernet/ti/cpts.c b/drivers/net/ethernet/ti/cpts.c index 7ab1fa73c0c0..fe1bb7f02f2e 100644 --- a/drivers/net/ethernet/ti/cpts.c +++ b/drivers/net/ethernet/ti/cpts.c @@ -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); -- 2.20.1