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a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1710934148; 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=M4qZDfeqdgUN7WwW07gOdPYTQ8hzgSGfC9I8vI9ySrQ=; b=A5Ce6O1tFxISLyNmqEAZsC9uJLadVd1q3mUS3sjqQ4msM7jFzzl79ffArFw+5Hvx0kNO4o QPnJExm9F+pf/ZrruBvzkEquNVkyZyRDxIecapw+UAPWH/+V2hQpvbUDKl15gbqoABhlLq +hzuxBEzbsujR4jnk2Xfpjk2IIDQrFPFhY3aJ/ktQsASuYS0VGsAHjQEG679MbXA6/b4xn 9tIuH8P88GR6nzKxlWTRKd7EA/eXU5YGpVs/to5qzFuAqQxJsrrbPRHiNqjnMjs5T9vJ5b suCc3kbrUVmlBwGHnJLosTvbfQ780/i9scNqwwYj7kDawAUignheWsMht8MaTQ== X-Mailman-Original-DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1710934148; 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=M4qZDfeqdgUN7WwW07gOdPYTQ8hzgSGfC9I8vI9ySrQ=; b=6AbpP4VorMVdt2xHPU/GrukrmO9bQSz9DqdX8PyH0teQhWqnYHp1IKhd40ae9cWC2jPdLz UraY84+UL0kipbCg== X-Mailman-Original-Authentication-Results: smtp2.osuosl.org; dmarc=pass (p=none dis=none) header.from=linutronix.de X-Mailman-Original-Authentication-Results: smtp2.osuosl.org; dkim=pass (2048-bit key, unprotected) header.d=linutronix.de header.i=@linutronix.de header.a=rsa-sha256 header.s=2020 header.b=A5Ce6O1t; dkim=pass header.d=linutronix.de header.i=@linutronix.de header.a=ed25519-sha256 header.s=2020e header.b=6AbpP4Vo Subject: Re: [Intel-wired-lan] [PATCH v5 02/11] timekeeping: Add function to convert realtime to base clock X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-doc@vger.kernel.org, mallikarjunappa.sangannavar@intel.com, alexandre.torgue@foss.st.com, perex@perex.cz, basavaraj.goudar@intel.com, thejesh.reddy.t.r@intel.com, christopher.s.hall@intel.com, x86@kernel.org, joabreu@synopsys.com, peter.hilber@opensynergy.com, intel-wired-lan@lists.osuosl.org, subramanian.mohan@intel.com, linux-sound@vger.kernel.org, lakshmi.sowjanya.d@intel.com, andriy.shevchenko@linux.intel.com, netdev@vger.kernel.org, pandith.n@intel.com, eddie.dong@intel.com, mcoquelin.stm32@gmail.com, anthony.l.nguyen@intel.com, davem@davemloft.net Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" On Tue, Mar 19 2024 at 18:35, lakshmi.sowjanya.d@intel.com wrote: > From: Lakshmi Sowjanya D > > PPS(Pulse Per Second) generates signals in realtime, but Timed IO > hardware understands time in base clock reference. Add an interface, > ktime_real_to_base_clock() to convert realtime to base clock. > > Convert the base clock to the system clock using convert_base_to_cs() in > get_device_system_crosststamp(). This really is doing two unrelated things. ktime_real_to_base_clock() has absolutely nothing to do with the clocksource_base related changes to get_device_system_crosststamp() From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 19A363D541; Wed, 20 Mar 2024 11:29:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710934151; cv=none; b=B/7C4mGHtuWVKt2NlMNKeqsaTjGdY0SRa+7CBHEHpYCgeKiQzr1z/bqXqBXE9s6LuTcthkJOIW5ZU9SLed1QzIwss31Nve8jMUmXyebTEJigJvMkovopxefFrwSUebe0pPPx9a85jZSc8ppyKxqtn4IObehKawbaXACJJRTYpcE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710934151; c=relaxed/simple; bh=M4qZDfeqdgUN7WwW07gOdPYTQ8hzgSGfC9I8vI9ySrQ=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=Pbhkvagy/oJmYgSZmasExGQ9maLGZ8bcSz4GP2dDbaGsnUoRq7Ge1pmjweSXeG0+sV3Er0Gu/Lu2LOkcuewY1crcqFe26by1hU2soyAG5cEtSEw/dS21c965fJtp5A5XGI39XGaco6P8Ql7PN1ypaJpPitK7fL2ZPSNwipQhdbc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=A5Ce6O1t; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=6AbpP4Vo; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="A5Ce6O1t"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="6AbpP4Vo" From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1710934148; 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=M4qZDfeqdgUN7WwW07gOdPYTQ8hzgSGfC9I8vI9ySrQ=; b=A5Ce6O1tFxISLyNmqEAZsC9uJLadVd1q3mUS3sjqQ4msM7jFzzl79ffArFw+5Hvx0kNO4o QPnJExm9F+pf/ZrruBvzkEquNVkyZyRDxIecapw+UAPWH/+V2hQpvbUDKl15gbqoABhlLq +hzuxBEzbsujR4jnk2Xfpjk2IIDQrFPFhY3aJ/ktQsASuYS0VGsAHjQEG679MbXA6/b4xn 9tIuH8P88GR6nzKxlWTRKd7EA/eXU5YGpVs/to5qzFuAqQxJsrrbPRHiNqjnMjs5T9vJ5b suCc3kbrUVmlBwGHnJLosTvbfQ780/i9scNqwwYj7kDawAUignheWsMht8MaTQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1710934148; 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=M4qZDfeqdgUN7WwW07gOdPYTQ8hzgSGfC9I8vI9ySrQ=; b=6AbpP4VorMVdt2xHPU/GrukrmO9bQSz9DqdX8PyH0teQhWqnYHp1IKhd40ae9cWC2jPdLz UraY84+UL0kipbCg== To: lakshmi.sowjanya.d@intel.com, jstultz@google.com, giometti@enneenne.com, corbet@lwn.net, linux-kernel@vger.kernel.org Cc: x86@kernel.org, netdev@vger.kernel.org, linux-doc@vger.kernel.org, intel-wired-lan@lists.osuosl.org, andriy.shevchenko@linux.intel.com, eddie.dong@intel.com, christopher.s.hall@intel.com, jesse.brandeburg@intel.com, davem@davemloft.net, alexandre.torgue@foss.st.com, joabreu@synopsys.com, mcoquelin.stm32@gmail.com, perex@perex.cz, linux-sound@vger.kernel.org, anthony.l.nguyen@intel.com, peter.hilber@opensynergy.com, pandith.n@intel.com, mallikarjunappa.sangannavar@intel.com, subramanian.mohan@intel.com, basavaraj.goudar@intel.com, thejesh.reddy.t.r@intel.com, lakshmi.sowjanya.d@intel.com Subject: Re: [PATCH v5 02/11] timekeeping: Add function to convert realtime to base clock In-Reply-To: <20240319130547.4195-3-lakshmi.sowjanya.d@intel.com> References: <20240319130547.4195-1-lakshmi.sowjanya.d@intel.com> <20240319130547.4195-3-lakshmi.sowjanya.d@intel.com> Date: Wed, 20 Mar 2024 12:29:07 +0100 Message-ID: <8734sli1ks.ffs@tglx> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain On Tue, Mar 19 2024 at 18:35, lakshmi.sowjanya.d@intel.com wrote: > From: Lakshmi Sowjanya D > > PPS(Pulse Per Second) generates signals in realtime, but Timed IO > hardware understands time in base clock reference. Add an interface, > ktime_real_to_base_clock() to convert realtime to base clock. > > Convert the base clock to the system clock using convert_base_to_cs() in > get_device_system_crosststamp(). This really is doing two unrelated things. ktime_real_to_base_clock() has absolutely nothing to do with the clocksource_base related changes to get_device_system_crosststamp()