From patchwork Mon May 14 08:55:31 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Baolin Wang X-Patchwork-Id: 912764 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-tegra-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.b="T1bQBNI3"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 40kvk55dk6z9ryk for ; Mon, 14 May 2018 18:58:21 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752245AbeENI4y (ORCPT ); Mon, 14 May 2018 04:56:54 -0400 Received: from mail-pf0-f193.google.com ([209.85.192.193]:41318 "EHLO mail-pf0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752251AbeENI4w (ORCPT ); Mon, 14 May 2018 04:56:52 -0400 Received: by mail-pf0-f193.google.com with SMTP id v63-v6so5687060pfk.8 for ; Mon, 14 May 2018 01:56:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :in-reply-to:references; bh=Eel7Cy1vzjSfGnvDW7hlCZjLq+FDPDHooRhbIXHnQjA=; b=T1bQBNI3qh7v/08aIXQZItbjVSsI4O/VAnj/GGeXw5A8C0iWI15KOjDIcmN1EkUPCy U6Z02C3QxtMZAAedhY8YQYPaPTrffMqPV6mhiwncXgZfLcsdY3gaVPOf3UX+B5wGzi6j 328r6o0s3pXMjhPYXOGpUP6kfUZ5s6nm47MEY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:in-reply-to:references; bh=Eel7Cy1vzjSfGnvDW7hlCZjLq+FDPDHooRhbIXHnQjA=; b=ckiiY+LKz41zkOpRE3enTautbwE2vbp+XtvuGNj4abQpsUjLK4alsh3HOYYcq/HnYx A8OBNx8ov6lpVd2j5XvR4OUHFhLOK5VK4dqAQ2oCPy1JVI20wHovOfMhFK8rB0Ft3Smm i4YCy1csKIlWcQcHuDZiSK8ds3tMdA9LB+uLovJqO7IhnCdxxNCfwp2Gq3ByN+fulfJ9 AEGnj8liPFRH+GVj7s3ZQnKgJpRO5slbP42a4w62O5Dax+0hbNQvWN6yPNKsE8UPBHQ6 G45UGdQ7zG+n/Av+l7N+vGtZEse2JqLexzbMA2VOKuqS1GqhcTCX/Rk+pYaboGyWf2fB DfwQ== X-Gm-Message-State: ALKqPwfPk4dv6rtKI8xc9b74VOnO/5sMsKToNP+SclrVYedzCVwdKpnx SXLoOQkiJXBGMXC8b9WqMcmeTg== X-Google-Smtp-Source: AB8JxZpdNQik0jChNqY6KcTP2cM/CssVWVYNluBZ6mhnQXBoMPBFg5q1HsTiEbQZ63sbAmdhPie37w== X-Received: by 2002:a62:ac14:: with SMTP id v20-v6mr9654715pfe.101.1526288211529; Mon, 14 May 2018 01:56:51 -0700 (PDT) Received: from baolinwangubtpc.spreadtrum.com ([117.18.48.102]) by smtp.gmail.com with ESMTPSA id x71-v6sm23308158pfe.47.2018.05.14.01.56.42 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 14 May 2018 01:56:51 -0700 (PDT) From: Baolin Wang To: tglx@linutronix.de, john.stultz@linaro.org, daniel.lezcano@linaro.org, arnd@arndb.de, tony@atomide.com, aaro.koskinen@iki.fi, linux@armlinux.org.uk, mark.rutland@arm.com, marc.zyngier@arm.com Cc: baolin.wang@linaro.org, broonie@kernel.org, paulmck@linux.vnet.ibm.com, mlichvar@redhat.com, rdunlap@infradead.org, kstewart@linuxfoundation.org, gregkh@linuxfoundation.org, pombredanne@nexb.com, thierry.reding@gmail.com, jonathanh@nvidia.com, heiko@sntech.de, linus.walleij@linaro.org, viresh.kumar@linaro.org, mingo@kernel.org, hpa@zytor.com, peterz@infradead.org, douly.fnst@cn.fujitsu.com, len.brown@intel.com, rajvi.jingar@intel.com, alexandre.belloni@bootlin.com, x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org Subject: [RFC PATCH 05/10] arm: time: Remove the persistent clock support for ARM Date: Mon, 14 May 2018 16:55:31 +0800 Message-Id: <8d74ba31d4d2b14f21bea7a9cbc4f029bc59f60f.1526285602.git.baolin.wang@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: In-Reply-To: References: Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org We have converted all drivers to use common persistent clock framework to compensate the suspend time, so we can remove the persistent clock, which only supports the ARM architecture. Moreover there are no drivers will register read_boot_clock64(), so remove it too. Signed-off-by: Baolin Wang --- arch/arm/include/asm/mach/time.h | 4 ---- arch/arm/kernel/time.c | 36 ------------------------------------ 2 files changed, 40 deletions(-) diff --git a/arch/arm/include/asm/mach/time.h b/arch/arm/include/asm/mach/time.h index 0f79e4d..3cbcafc 100644 --- a/arch/arm/include/asm/mach/time.h +++ b/arch/arm/include/asm/mach/time.h @@ -12,8 +12,4 @@ extern void timer_tick(void); -typedef void (*clock_access_fn)(struct timespec64 *); -extern int register_persistent_clock(clock_access_fn read_boot, - clock_access_fn read_persistent); - #endif diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c index cf2701c..713905c 100644 --- a/arch/arm/kernel/time.c +++ b/arch/arm/kernel/time.c @@ -76,42 +76,6 @@ void timer_tick(void) } #endif -static void dummy_clock_access(struct timespec64 *ts) -{ - ts->tv_sec = 0; - ts->tv_nsec = 0; -} - -static clock_access_fn __read_persistent_clock = dummy_clock_access; -static clock_access_fn __read_boot_clock = dummy_clock_access; - -void read_persistent_clock64(struct timespec64 *ts) -{ - __read_persistent_clock(ts); -} - -void read_boot_clock64(struct timespec64 *ts) -{ - __read_boot_clock(ts); -} - -int __init register_persistent_clock(clock_access_fn read_boot, - clock_access_fn read_persistent) -{ - /* Only allow the clockaccess functions to be registered once */ - if (__read_persistent_clock == dummy_clock_access && - __read_boot_clock == dummy_clock_access) { - if (read_boot) - __read_boot_clock = read_boot; - if (read_persistent) - __read_persistent_clock = read_persistent; - - return 0; - } - - return -EINVAL; -} - void __init time_init(void) { if (machine_desc->init_time) {