From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa1-f50.google.com (mail-oa1-f50.google.com [209.85.160.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3E74D748E; Thu, 13 Jun 2024 03:25:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.50 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718249135; cv=none; b=LRQFulqRPZmGTClCvelbiumt0NMC9crSWuGnhW9f9/WBa961tfRIr/DS1Ex7N4jsmkspQi1gui41N32c+eG4GHMkC3vemQKJrq9UUpFKrIKeK0OfsNU7HlebsZTwkwkN+3FPQv8UXGjQpVQ+YfbqkvO+rPgwlXJUMCVYx7q+HcU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718249135; c=relaxed/simple; bh=oLuXRIQ99xSi7LAybPdTF3RjeRzcGni9iF8X5uYneDw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ReLeyyKLPCxRy4t/akcXfdTKfV5pnP7n9xKtTPw/HItP9BnzyI1D31ouoxwZtXtvQR/LIgb/tOLBCaYg80Bb3t9WYC8+v2NV9JAApxasbVpzaiGLzYY+83e1bivi8vyGn9p7f6OcfL1t4kT6bd5/oazxopf2/HX6VDnRbEEkfJQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=IEv9HjnJ; arc=none smtp.client-ip=209.85.160.50 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="IEv9HjnJ" Received: by mail-oa1-f50.google.com with SMTP id 586e51a60fabf-254f646b625so98193fac.0; Wed, 12 Jun 2024 20:25:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1718249133; x=1718853933; darn=vger.kernel.org; h=in-reply-to:content-transfer-encoding:content-disposition :mime-version:references:message-id:subject:cc:to:from:date:from:to :cc:subject:date:message-id:reply-to; bh=rZz19BX/k+nGNMmcTEtPVga785qLPUBaZp98ECgi1l0=; b=IEv9HjnJ0yQvmtb+mOAftNoILYVd+xFQudkuJO8Zn9/WVkAHzZg8kI3en/xvvsOxFe QgzxwtgjocI7wm3UOYXok3ZwBuJ2DwsERwx0sWbFWrveZPmGTnuJtU4tra6eOqC14PKW BklcID9fe5d+4UU1YSaD8taJupqlKMcmZENzcP61BYGlch43TARpN6fr/0N1wg7Q0KzD XgyTa22CkzjhrciDVKAir0TuFneCSLDdErLwDfYqza/NAE1xzD80PhICBqPKT8DGWTE0 bKO1YC7cA5Hoop+h3hSMDodbX2RjkoOKL2pNFJdsiQdLwg02ablUjhNFCXk4BV4BAYZZ 1vhA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718249133; x=1718853933; h=in-reply-to:content-transfer-encoding:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=rZz19BX/k+nGNMmcTEtPVga785qLPUBaZp98ECgi1l0=; b=I4hL7oIUc1eLZC+orwFMQbIHRC+lkqbfGoGCktlc+2B7zaZUN8jM95ldhKmTDXoeds B7ZX5lczIzIBmtx7vtesPiLAJACJNG4i4xmod62r7RzLNZjBI4VwKDX1MHenX5Nd7dJ7 tgxArqG+xJQRnOdbTJ8I8E6bf5ghZ2/JFai6U7iMzK/a6/qifgou3kmsT5oYV+y/+hvi DAE3CcKggY8De7Fa8AI4wLJvgtoD5dWMcpF0n76KAYRilXFrEM1pkm8qcUug5qr5wKJ6 uOXIIg+am7iQ4lfWJxDQrlYwNQjZmvlHqERPKtTD4J2WIXj649k59MQtqEU4V9jA1xbB y3AA== X-Forwarded-Encrypted: i=1; AJvYcCUWaks1+xIMyFFZMAc2d5KAanAKcqTi8LUXWbHCvpv0t+vJQN6Zs7srW/Ywwy7gXOoMc17nSApgKH8GNiieLC15eJL4EaYsDBHSU+t7uNAzTjKaIiqHxBS2rGFCF3BBa2pR21nLzs4O X-Gm-Message-State: AOJu0YyM18/mg6MFOFlZvMFPL0Tmc4xdjxxbQE11qCczypdQIWb2lftQ rGL5zL6npu0YHI1ztftJNCMeoQgqXbBmbZHdxa9PSzBSpDPMuCFQ X-Google-Smtp-Source: AGHT+IG+/ESvlCL9CMc/zwdeunXMnj21Xd6wGthRNQ60FTw/px/hboxRX9KTpg5iXzZ93Bw6JpsuFA== X-Received: by 2002:a05:6870:7812:b0:254:7dbe:1b89 with SMTP id 586e51a60fabf-25514be2464mr3870727fac.1.1718249133166; Wed, 12 Jun 2024 20:25:33 -0700 (PDT) Received: from hoboy.vegasvil.org ([2600:1700:2430:6f6f:e2d5:5eff:fea5:802f]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-6fb5b1b0fa8sm102370a34.28.2024.06.12.20.25.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Jun 2024 20:25:32 -0700 (PDT) Date: Wed, 12 Jun 2024 20:25:30 -0700 From: Richard Cochran To: =?iso-8859-1?B?Q3Pza+Fz?= Bence Cc: Miroslav Lichvar , linux-rtc@vger.kernel.org, linux-kernel@vger.kernel.org, =?iso-8859-1?Q?Szentendrei=2C_Tam=E1s?= , Alexandre Belloni Subject: Re: [RFC PATCH v2] rtc: pcf2127: Add PPS capability through Seconds Interrupt Message-ID: References: <20240611150458.684349-1-csokas.bence@prolan.hu> Precedence: bulk X-Mailing-List: linux-rtc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Wed, Jun 12, 2024 at 11:16:02AM +0200, Csókás Bence wrote: > On 6/12/24 09:50, Miroslav Lichvar wrote: > > I think a TCXO-based RTC can be useful to user space to improve > > holdover performance with NTP/PTP. > > Exactly. Oh, the fact that the RTC has a TCXO is useful context to explain your motivation and justify the need for this change. It wouldn't hurt to include that tidbit in the commit message. Thanks, Richard