From patchwork Wed Jun 13 11:32:33 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Baolin Wang X-Patchwork-Id: 928835 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="DHjcCH44"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 415Pmq0Nhtz9s3C for ; Wed, 13 Jun 2018 21:34:51 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935477AbeFMLdx (ORCPT ); Wed, 13 Jun 2018 07:33:53 -0400 Received: from mail-pg0-f66.google.com ([74.125.83.66]:34870 "EHLO mail-pg0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935476AbeFMLdu (ORCPT ); Wed, 13 Jun 2018 07:33:50 -0400 Received: by mail-pg0-f66.google.com with SMTP id 15-v6so1150632pge.2 for ; Wed, 13 Jun 2018 04:33:49 -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=2jKomMyu3aPBvQwHnJ5xi/PxkWHSmOUr0jIrlPwlqUo=; b=DHjcCH44PAE//jlj19ah6Lf6VjIsxwDZljyjvo8mQDpaISZEmORUdgHGSx4ht3wvIo pNE8+itgpZQ4tEBXVSCgOJGMq8RAxczNzXxO4kOtXjs0s0uoyPuMMkwm2LD6nr6tiWdT 1b9HW6mWoxEHvbOSLIhKIRT/00Lf48AZgpap0= 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=2jKomMyu3aPBvQwHnJ5xi/PxkWHSmOUr0jIrlPwlqUo=; b=m/iXn7UDjepbz7c2o1oT8Bh7oNxRdeVIrL7bxlW1hxZBLhI0Hz+2WM5TK4oItbv4Mf axN12WOFCHuLROnZb22rntr21uVN2vUhmlJQRXWUeKyFclaEoZOzpb3a6NqAvtxqMRls 3eu5w+jxc7kIykW73++IoisXTlGESDFdsDEnbc+6KoLNO8VE6ZD9ISaz+T9m8c4zV4CL 7H87v5gbUz7xCdQhZKco+TLeh0zU851nVGs7FIqpg7YmRV97MEQc/DoLh/3P4z1V7rAz zv0R0zZfbSAvXPW25e793j0IUrpNM+/sA5BelQneLWl/SWMedi7ciUu9Eiddz/v38yJd 0htQ== X-Gm-Message-State: APt69E15/DdOA5E8UNHs+7EEobFZABhzpT3H8WeMl5bLgT6mg8yQ/R0J F5rNwZLUAnRbeeIVjJehmOOUyw== X-Google-Smtp-Source: ADUXVKLTizWTXbXFsSjgSErRHW7sVMXM1YRtFLO1ja/eanjd30bHW28hZhyerTht2cfBRKmYv0wYgA== X-Received: by 2002:a63:7707:: with SMTP id s7-v6mr3862017pgc.426.1528889629540; Wed, 13 Jun 2018 04:33:49 -0700 (PDT) Received: from baolinwangubtpc.spreadtrum.com ([117.18.48.102]) by smtp.gmail.com with ESMTPSA id h8-v6sm2745370pgq.35.2018.06.13.04.33.41 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 13 Jun 2018 04:33:49 -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: [PATCH 6/8] clocksource: time-pistachio: Register the persistent clock Date: Wed, 13 Jun 2018 19:32:33 +0800 Message-Id: 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 Since the timer on pistachio platform is always available, we can register it as one persistent clock to compensate the suspend time for the OS time. Signed-off-by: Baolin Wang --- drivers/clocksource/Kconfig | 1 + drivers/clocksource/time-pistachio.c | 3 +++ 2 files changed, 4 insertions(+) diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig index 3cd136f..af552ba 100644 --- a/drivers/clocksource/Kconfig +++ b/drivers/clocksource/Kconfig @@ -255,6 +255,7 @@ config CLKSRC_PISTACHIO bool "Clocksource for Pistachio SoC" if COMPILE_TEST depends on HAS_IOMEM select TIMER_OF + select PERSISTENT_CLOCK help Enables the clocksource for the Pistachio SoC. diff --git a/drivers/clocksource/time-pistachio.c b/drivers/clocksource/time-pistachio.c index a2dd85d..5c3eb71 100644 --- a/drivers/clocksource/time-pistachio.c +++ b/drivers/clocksource/time-pistachio.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -212,6 +213,8 @@ static int __init pistachio_clksrc_of_init(struct device_node *node) raw_spin_lock_init(&pcs_gpt.lock); sched_clock_register(pistachio_read_sched_clock, 32, rate); + persistent_clock_init_and_register(pistachio_read_sched_clock, + CLOCKSOURCE_MASK(32), rate, 0); return clocksource_register_hz(&pcs_gpt.cs, rate); } TIMER_OF_DECLARE(pistachio_gptimer, "img,pistachio-gptimer",