From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.7 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 42CBCC65BAF for ; Wed, 12 Dec 2018 18:48:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E521F20851 for ; Wed, 12 Dec 2018 18:48:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="2rfJdjX+" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E521F20851 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728169AbeLLSsd (ORCPT ); Wed, 12 Dec 2018 13:48:33 -0500 Received: from merlin.infradead.org ([205.233.59.134]:34920 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727897AbeLLSsd (ORCPT ); Wed, 12 Dec 2018 13:48:33 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To:Subject:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=Ttyo4Kl+9DOlfE2GjxEeKBk86/4qJBO2/V0uJDlF2sU=; b=2rfJdjX+/x4oyv+R3iO8IizOlY QGhym1X/sbb+TARgj5+ylJgfuIvy6CfCmSBkq+f7Vq/4gOsyhUuwRPsJINOmNFrKkF5I18Jx4xfUZ rLa+uprvQOCqPmMOUDvIt0C6xVV3xSCfB++nbjHJrdCNkpt31BW//TKlo5Qph04INfCp3ItRen/8l 2XiHFnETTrPStLK1SuhkmCJ6V/7NvvJcTxzFCpqLhh74JWnjuj8rwYONRmHBbi3qfuzM9f2hZQpOO OoYMWE8YiP6/9pqyJMz+0h1IBqBWb7Y2MlFNejZpev0Qt3oXNXU8elIjNjQDNAX1Aq877rtsiFTjy lmGRcPYg==; Received: from static-50-53-52-16.bvtn.or.frontiernet.net ([50.53.52.16] helo=midway.dunlab) by merlin.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1gX9Yb-0004EM-VQ; Wed, 12 Dec 2018 18:48:30 +0000 Subject: Re: [PATCH v2 2/2] driver: clocksource: Add nxp system counter timer driver support To: Jacky Bai , "daniel.lezcano@linaro.org" , "tglx@linutronix.de" , "robh+dt@kernel.org" , "shawnguo@kernel.org" , "mark.rutland@arm.com" , Aisheng Dong Cc: "linux-kernel@vger.kernel.org" , "devicetree@vger.kernel.org" , dl-linux-imx References: <1544592770-19996-1-git-send-email-ping.bai@nxp.com> <1544592770-19996-2-git-send-email-ping.bai@nxp.com> From: Randy Dunlap Message-ID: Date: Wed, 12 Dec 2018 10:48:22 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.0 MIME-Version: 1.0 In-Reply-To: <1544592770-19996-2-git-send-email-ping.bai@nxp.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On 12/11/18 9:28 PM, Jacky Bai wrote: > diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig > index c57b156..7e5f2de 100644 > --- a/drivers/clocksource/Kconfig > +++ b/drivers/clocksource/Kconfig > @@ -579,6 +579,14 @@ config CLKSRC_IMX_TPM > Enable this option to use IMX Timer/PWM Module (TPM) timer as > clocksource. > > +config CLKSRC_IMX_SYS_CTR > + bool "Clocksource using i.MX system counter" if COMPILE_TEST Looks like a "make *config" user only gets this prompt if COMPILE_TEST is set. If COMPILE_TEST is not set, how does this driver become enabled/set? > + depends on (ARM || ARM64) && CLKDEV_LOOKUP > + select CLKSRC_MMIO > + help > + Enable this option to use IMX system counter timer as > + clocksource. > + > config CLKSRC_ST_LPC > bool "Low power clocksource found in the LPC" if COMPILE_TEST > select TIMER_OF if OF thanks, -- ~Randy