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[23.128.96.18]) by mx.google.com with ESMTP id s30si6927313edi.465.2021.01.11.05.05.20; Mon, 11 Jan 2021 05:05:45 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@linutronix.de header.s=2020 header.b=HZ46lrmN; dkim=neutral (no key) header.i=@linutronix.de header.s=2020e; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728966AbhAKKNc (ORCPT + 99 others); Mon, 11 Jan 2021 05:13:32 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:37678 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728862AbhAKKNc (ORCPT ); Mon, 11 Jan 2021 05:13:32 -0500 From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1610359970; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=ELTMBG/piRAicwVwlOp7eFBbH/3LfbXixUnmMHwZ0aU=; b=HZ46lrmNU50/Ja+TXetTWLzIGyNL3iCTC+111NZ66zJcLdRR+VvPrdeicua+9JryMz/xHF vVCyry0uZFyq/sen8wJbQFwNyz8FNfaRdkmbYc00YI0L8O/VmPWMCnGjIsw2jLJLoQSgLe fcGuKEW9ooraOxoGoADUILWsp6u7ccqDGV4FxhBurS7scQJQhVLWZXpNruScnSK021gAOx EGFCbyEPYKIr6TFuNOcZAw07STaKNrDXgiob747cvPznPEGmb+faHkceFyirf58Pz4bmoD Qoi6cNxy+XSwFmcGI8cF7WIvlbq9k7CiZisiqLTSR5OmEyur7ftE3v6EdHRmww== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1610359970; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=ELTMBG/piRAicwVwlOp7eFBbH/3LfbXixUnmMHwZ0aU=; b=36FA3kIrpGPfrJHjkJusvwimGZcvZLrNY8NvUZvKJGO8tl2GxvJBc8x9sjJWa8AT60h7mP 2mFYFVj+1kv4iUCg== To: Geert Uytterhoeven Cc: LKML , Alexandre Belloni , Jason Gunthorpe , Miroslav Lichvar , John Stultz , Prarit Bhargava , Alessandro Zummo , linux-rtc@vger.kernel.org, Peter Zijlstra , Wolfram Sang , Linux-Renesas Subject: Re: [patch 5/8] ntp: Make the RTC synchronization more reliable In-Reply-To: References: <20201206214613.444124194@linutronix.de> <20201206220542.062910520@linutronix.de> Date: Mon, 11 Jan 2021 11:12:49 +0100 Message-ID: <87lfcz7pem.fsf@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Dec 29 2020 at 20:41, Geert Uytterhoeven wrote: > Hi Thomas, >> Reported-by: Miroslav Lichvar >> Signed-off-by: Thomas Gleixner > > Thanks for your patch, which is now commit c9e6189fb03123a7 ("ntp: Make > the RTC synchronization more reliable"). > > Since this commit, the I2C RTC on the R-Car M2-W Koelsch development > board is accessed every two seconds. Sticking a WARN() in the I2C > activation path gives e.g. Huch? Every two seconds? The timer is armed with 11 * 60 * NSEC_PER_SEC, which is 11 minutes. Confused.... Thanks, tglx