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[94.29.35.107]) by smtp.gmail.com with ESMTPSA id d13sm1646000lfa.40.2019.04.11.15.29.59 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 11 Apr 2019 15:30:00 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , MyungJoo Ham , Kyungmin Park , Chanwoo Choi Cc: linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH v1 2/8] PM / devfreq: tegra: Replace readl-writel with relaxed versions Date: Fri, 12 Apr 2019 01:29:08 +0300 Message-Id: <20190411222914.25539-3-digetx@gmail.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190411222914.25539-1-digetx@gmail.com> References: <20190411222914.25539-1-digetx@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org There is no need to insert memory barrier on each readl/writel invocation, hence use the relaxed versions. Signed-off-by: Dmitry Osipenko --- drivers/devfreq/tegra-devfreq.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c index ec4ff55f5eea..d749399f67ae 100644 --- a/drivers/devfreq/tegra-devfreq.c +++ b/drivers/devfreq/tegra-devfreq.c @@ -191,23 +191,23 @@ static struct tegra_actmon_emc_ratio actmon_emc_ratios[] = { static u32 actmon_readl(struct tegra_devfreq *tegra, u32 offset) { - return readl(tegra->regs + offset); + return readl_relaxed(tegra->regs + offset); } static void actmon_writel(struct tegra_devfreq *tegra, u32 val, u32 offset) { - writel(val, tegra->regs + offset); + writel_relaxed(val, tegra->regs + offset); } static u32 device_readl(struct tegra_devfreq_device *dev, u32 offset) { - return readl(dev->regs + offset); + return readl_relaxed(dev->regs + offset); } static void device_writel(struct tegra_devfreq_device *dev, u32 val, u32 offset) { - writel(val, dev->regs + offset); + writel_relaxed(val, dev->regs + offset); } static unsigned long do_percent(unsigned long val, unsigned int pct) -- 2.21.0