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[209.132.180.67]) by mx.google.com with ESMTP id g127si24653061pgc.128.2019.08.01.00.03.11; Thu, 01 Aug 2019 00:03:27 -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=TzLFx9yj; 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 S1728677AbfHAFk7 (ORCPT + 99 others); Thu, 1 Aug 2019 01:40:59 -0400 Received: from mail-pf1-f196.google.com ([209.85.210.196]:46630 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728469AbfHAFk6 (ORCPT ); Thu, 1 Aug 2019 01:40:58 -0400 Received: by mail-pf1-f196.google.com with SMTP id c3so10197106pfa.13 for ; Wed, 31 Jul 2019 22:40:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=y/o8YTbNsjxw2k6UgbsxYXXjTg0fvc1tjD9GHYk14MU=; b=TzLFx9yjS2cOaxig8Qru/VS6YDnRG6KdulTld7+Nu2jkuGuJIvdKq4dubYNb2h/bIT 7CpZj8guUFYuqdB/x/nRLtbMOxHEU6ZiEk8yW4y+Mt5xL0FIkt6jiBjmS0g0qTdNlnSu lofI0X8paFqgVW1G1+a67lLfDVpkg+dGbKxbWEFC9WwM9r0hZS/0PooASt5Wezo7nuO+ puyyuTBh2jKZM7SK3smdmRzK6AZWm5odBoIv0OAkV/ATL2lhoqvMS0U5If1MEGm9XfEc 8CNmE4IbbnlG01j76SCXuyUs+aKf9LaRFX82Bp6zgHnVKnmgo/MN68OeHZuTMIqOOO2N MSHw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=y/o8YTbNsjxw2k6UgbsxYXXjTg0fvc1tjD9GHYk14MU=; b=P6DRywZt2Mzqz6JJ/R/AGxnKWVd99em/oLvUCo5NhqVJEyLI5w3ZwXtSJ0MOLZMpEW 6SQtexKonKqJiJZsjKyyEAUZy0K4EgvZcVW5Dh3Oyg8tfPdaIaG4qSesR/JyzMhfVDSa cxMDVCeut2MES49Aq5U0vlVjbpdiy5jIRpTUyjdRwd7HDo68nVWxPlizEfRnZ2LQcv+n QWXMwTaRkyAPOoy4hdW8tg5ekfkUouFs1npLLVZEpbfgKYXlsjJvK2Ooqlg+V5CTGmQ0 oXvcCSWWePFed/r7bno3tSs6SYkTCT0H2x67EOAXOYynkKwcsmEuZkgzAU17n5QWWnvc nR2w== X-Gm-Message-State: APjAAAW6MCkocOyvkJqxnfZ9DdFI0rzibVQhykK3p5dA4yd6YGWC0x7a 2iAJSiTO2f2aYo6FKDE530FgYQ== X-Received: by 2002:a63:124a:: with SMTP id 10mr116595500pgs.254.1564638057851; Wed, 31 Jul 2019 22:40:57 -0700 (PDT) Received: from localhost ([122.172.28.117]) by smtp.gmail.com with ESMTPSA id d15sm10245980pjc.8.2019.07.31.22.40.56 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 31 Jul 2019 22:40:57 -0700 (PDT) Date: Thu, 1 Aug 2019 11:10:55 +0530 From: Viresh Kumar To: Sowjanya Komatineni Cc: thierry.reding@gmail.com, jonathanh@nvidia.com, tglx@linutronix.de, jason@lakedaemon.net, marc.zyngier@arm.com, linus.walleij@linaro.org, stefan@agner.ch, mark.rutland@arm.com, pdeschrijver@nvidia.com, pgaikwad@nvidia.com, sboyd@kernel.org, linux-clk@vger.kernel.org, linux-gpio@vger.kernel.org, jckuo@nvidia.com, josephl@nvidia.com, talho@nvidia.com, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, mperttunen@nvidia.com, spatra@nvidia.com, robh+dt@kernel.org, digetx@gmail.com, devicetree@vger.kernel.org, rjw@rjwysocki.net, linux-pm@vger.kernel.org Subject: Re: [PATCH v7 11/20] cpufreq: tegra124: Add suspend and resume support Message-ID: <20190801054055.trmabmcaj3cpe4pc@vireshk-i7> References: <1564607463-28802-1-git-send-email-skomatineni@nvidia.com> <1564607463-28802-12-git-send-email-skomatineni@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1564607463-28802-12-git-send-email-skomatineni@nvidia.com> User-Agent: NeoMutt/20180716-391-311a52 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 31-07-19, 14:10, Sowjanya Komatineni wrote: > This patch adds suspend and resume pm ops for cpufreq driver. > > PLLP is the safe clock source for CPU during system suspend and > resume as PLLP rate is below the CPU Fmax at Vmin. > > CPUFreq driver suspend switches the CPU clock source to PLLP and > disables the DFLL clock. > > During system resume, warmboot code powers up the CPU with PLLP > clock source. So CPUFreq driver resume enabled DFLL clock and > switches CPU back to DFLL clock source. > > Signed-off-by: Sowjanya Komatineni > --- > drivers/cpufreq/tegra124-cpufreq.c | 60 ++++++++++++++++++++++++++++++++++++++ > 1 file changed, 60 insertions(+) Is there any hard dependency of this patch on the rest of the patches? Can I apply it alone to cpufreq tree ? -- viresh