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[209.132.180.67]) by mx.google.com with ESMTP id y124-v6si2148447pgb.61.2018.06.13.04.33.45; Wed, 13 Jun 2018 04:33:45 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=GwSPbK0O; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935475AbeFMLdo (ORCPT + 30 others); Wed, 13 Jun 2018 07:33:44 -0400 Received: from mail-pl0-f66.google.com ([209.85.160.66]:34794 "EHLO mail-pl0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935459AbeFMLdl (ORCPT ); Wed, 13 Jun 2018 07:33:41 -0400 Received: by mail-pl0-f66.google.com with SMTP id g20-v6so1388594plq.1 for ; Wed, 13 Jun 2018 04:33:41 -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=VFxhbhsSuXUmiZ9cQAUkdhNUFAU4y120/7wyv8wzRCU=; b=GwSPbK0OGf/jDreDhJlTg4vRKQl2zMu36mc/NSHeoDaHQ8K0xkwMYZBWZamkImUBzo qWOOGdi/faD9AkLS16WjIwAahe+/R5LAloQxJ1UBATQ6iz27y0U66bAh/7Ll9Td1xoi+ 6nOFrd3OlxGVfclu7h330U4UkuZTY/m8deJE8= 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=VFxhbhsSuXUmiZ9cQAUkdhNUFAU4y120/7wyv8wzRCU=; b=IRlKGgbHUOdfHh1nHFNCyxp1YDb7LpH3AIrCN5ZxsiVaz2sTso19v06quPEw5Yrdrx SDiC1LJEj8CSDyl7XrjLKc6FUZ305dYD2txAK7RJxsi+L35XwyIQNtETi2JlM+Jdy7JA Ol4o7TgzoVRcqCMwExgASNNILQdwAABEENpflpYUoENfPrFr6b1ImLAMWStMU3q2rkOw DiJxpwtBMMXLXe7ciiNqdaKNfnDF3Mzy9mJRIJiINGSJqA9T7eEjNX/omeb/Xw7XfTsY zpRV4UgG5xFlojbNiH73cNYWGjLieJfRQ6KlMmIXOvR5V0xWFwe+fZK9Gee/Sh2gsM3U G8dA== X-Gm-Message-State: APt69E3Bl6L9MKKtr1PzPJaRrU/P8UhaETokCpU8qSQ0ShnzVjLmuyv/ kjKvtYVbe8GbbwY13mOcZpCzkg== X-Received: by 2002:a17:902:7406:: with SMTP id g6-v6mr4745245pll.90.1528889620901; Wed, 13 Jun 2018 04:33:40 -0700 (PDT) Received: from baolinwangubtpc.spreadtrum.com ([117.18.48.102]) by smtp.gmail.com with ESMTPSA id h8-v6sm2745370pgq.35.2018.06.13.04.33.32 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 13 Jun 2018 04:33:40 -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 5/8] clocksource: timer-ti-32k: Register the persistent clock Date: Wed, 13 Jun 2018 19:32:32 +0800 Message-Id: <904493423cadb90576a712acdb3b512b4ed44887.1528878545.git.baolin.wang@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Since the 32K counter is always available, then we can register the persistent clock to compensate the suspend time for the OS time. Signed-off-by: Baolin Wang --- drivers/clocksource/Kconfig | 1 + drivers/clocksource/timer-ti-32k.c | 4 ++++ 2 files changed, 5 insertions(+) -- 1.7.9.5 diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig index 5e51fcf..3cd136f 100644 --- a/drivers/clocksource/Kconfig +++ b/drivers/clocksource/Kconfig @@ -262,6 +262,7 @@ config CLKSRC_TI_32K bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST depends on GENERIC_SCHED_CLOCK select TIMER_OF if OF + select PERSISTENT_CLOCK help This option enables support for Texas Instruments 32.768 Hz clocksource available on many OMAP-like platforms. diff --git a/drivers/clocksource/timer-ti-32k.c b/drivers/clocksource/timer-ti-32k.c index 880a861..353ff9d 100644 --- a/drivers/clocksource/timer-ti-32k.c +++ b/drivers/clocksource/timer-ti-32k.c @@ -41,6 +41,7 @@ #include #include #include +#include /* * 32KHz clocksource ... always available, on pretty most chips except @@ -120,6 +121,9 @@ static int __init ti_32k_timer_init(struct device_node *np) } sched_clock_register(omap_32k_read_sched_clock, 32, 32768); + persistent_clock_init_and_register(omap_32k_read_sched_clock, + CLOCKSOURCE_MASK(32), 32768, 0); + pr_info("OMAP clocksource: 32k_counter at 32768 Hz\n"); return 0;