From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hanjun Guo Subject: Re: [PATCH 18/20] clocksource / acpi: Add macro CLOCKSOURCE_ACPI_DECLARE Date: Mon, 20 Jan 2014 17:08:32 +0800 Message-ID: <52DCE790.6080809@linaro.org> References: <1389961514-13562-1-git-send-email-hanjun.guo@linaro.org> <1389961514-13562-19-git-send-email-hanjun.guo@linaro.org> <201401171521.35940.arnd@arndb.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Return-path: Received: from mail-pb0-f50.google.com ([209.85.160.50]:45728 "EHLO mail-pb0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753083AbaATJIs (ORCPT ); Mon, 20 Jan 2014 04:08:48 -0500 Received: by mail-pb0-f50.google.com with SMTP id rq2so6733836pbb.23 for ; Mon, 20 Jan 2014 01:08:47 -0800 (PST) In-Reply-To: <201401171521.35940.arnd@arndb.de> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Arnd Bergmann Cc: "Rafael J. Wysocki" , Catalin Marinas , Will Deacon , Russell King - ARM Linux , linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Grant Likely , Matthew Garrett , Olof Johansson , Linus Walleij , Bjorn Helgaas , Rob Herring , Mark Rutland , patches@linaro.org, linux-kernel@vger.kernel.org, linaro-kernel@lists.linaro.org, linaro-acpi@lists.linaro.org, Charles.Garcia-Tobin@arm.com, Amit Daniel Kachhap On 2014-1-17 22:21, Arnd Bergmann wrote: > On Friday 17 January 2014, Hanjun Guo wrote: >> >> From: Amit Daniel Kachhap >> >> This macro does the same job as CLOCKSOURCE_OF_DECLARE. The device >> name from the ACPI timer table is matched with all the registered >> timer controllers and matching initialisation routine is invoked. > > I wouldn't anticipate this infrastructure to be required. Shouldn't all > ARMv8 machines have an architected timer? I not sure of this, could anyone can give some guidance? if only arch timer is available for ARM64, this will make thing very simple. Thanks Hanjun