From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751522AbeBZULR (ORCPT ); Mon, 26 Feb 2018 15:11:17 -0500 Received: from rnd-relay.smtp.broadcom.com ([192.19.229.170]:41248 "EHLO rnd-relay.smtp.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750814AbeBZULQ (ORCPT ); Mon, 26 Feb 2018 15:11:16 -0500 From: Justin Chen To: linux-rtc@vger.kernel.org Cc: a.zummo@towertech.it, alexandre.belloni@free-electrons.com, computersforpeace@gmail.com, gregory.0xf0@gmail.com, f.fainelli@gmail.com, linux-kernel@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org, Justin Chen , Justin Chen Subject: [PATCH v2] rtc: brcmstb-waketimer: Set wktmr prescaler Date: Mon, 26 Feb 2018 12:09:58 -0800 Message-Id: <1519675798-26720-1-git-send-email-justin.chen@broadcom.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The HW default is one tick per second, however instead of assuming this, lets make sure the waketimer is actually one tick per second before arming the alarm. Reviewed-by: Florian Fainelli Signed-off-by: Justin Chen --- drivers/rtc/rtc-brcmstb-waketimer.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/rtc/rtc-brcmstb-waketimer.c b/drivers/rtc/rtc-brcmstb-waketimer.c index 796ac79..231b2f7 100644 --- a/drivers/rtc/rtc-brcmstb-waketimer.c +++ b/drivers/rtc/rtc-brcmstb-waketimer.c @@ -60,6 +60,9 @@ static void brcmstb_waketmr_set_alarm(struct brcmstb_waketmr *timer, { brcmstb_waketmr_clear_alarm(timer); + /* Make sure we are actually counting in seconds */ + writel_relaxed(timer->rate, timer->base + BRCMSTB_WKTMR_PRESCALER); + writel_relaxed(secs + 1, timer->base + BRCMSTB_WKTMR_ALARM); } -- 2.7.4