From: Dmitry Osipenko <digetx@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
MyungJoo Ham <myungjoo.ham@samsung.com>,
Kyungmin Park <kyungmin.park@samsung.com>,
Chanwoo Choi <cw00.choi@samsung.com>,
Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-pm@vger.kernel.org
Subject: [PATCH v3 02/16] PM / devfreq: tegra: Replace readl-writel with relaxed versions
Date: Thu, 18 Apr 2019 01:29:11 +0300 [thread overview]
Message-ID: <20190417222925.5815-3-digetx@gmail.com> (raw)
In-Reply-To: <20190417222925.5815-1-digetx@gmail.com>
There is no need to insert memory barrier on each readl/writel
invocation, hence use the relaxed versions.
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
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 43cd1233f87b..f7378a42d184 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
next prev parent reply other threads:[~2019-04-17 22:29 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-17 22:29 [PATCH v3 00/16] NVIDIA Tegra devfreq improvements and Tegra20/30 support Dmitry Osipenko
2019-04-17 22:29 ` Dmitry Osipenko
2019-04-17 22:29 ` [PATCH v3 01/16] PM / devfreq: tegra: Fix kHz to Hz conversion Dmitry Osipenko
2019-04-17 22:29 ` Dmitry Osipenko
2019-04-17 22:29 ` Dmitry Osipenko [this message]
2019-04-17 22:29 ` [PATCH v3 02/16] PM / devfreq: tegra: Replace readl-writel with relaxed versions Dmitry Osipenko
2019-04-17 22:29 ` [PATCH v3 03/16] PM / devfreq: tegra: Replace write memory barrier with the read barrier Dmitry Osipenko
2019-04-17 22:29 ` Dmitry Osipenko
2019-04-17 22:29 ` [PATCH v3 04/16] PM / devfreq: tegra: Don't ignore clk errors Dmitry Osipenko
2019-04-17 22:29 ` Dmitry Osipenko
2019-04-18 0:23 ` Chanwoo Choi
2019-04-18 0:23 ` Chanwoo Choi
2019-04-17 22:29 ` [PATCH v3 05/16] PM / devfreq: tegra: Don't set EMC clock rate to maximum on probe Dmitry Osipenko
2019-04-17 22:29 ` Dmitry Osipenko
2019-04-17 22:29 ` [PATCH v3 06/16] PM / devfreq: tegra: Drop primary interrupt handler Dmitry Osipenko
2019-04-17 22:29 ` Dmitry Osipenko
2019-04-18 0:24 ` Chanwoo Choi
2019-04-18 0:24 ` Chanwoo Choi
2019-04-17 22:29 ` [PATCH v3 07/16] PM / devfreq: tegra: Properly disable interrupts Dmitry Osipenko
2019-04-17 22:29 ` Dmitry Osipenko
2019-04-30 0:05 ` Chanwoo Choi
2019-04-30 0:05 ` Chanwoo Choi
2019-04-17 22:29 ` [PATCH v3 08/16] PM / devfreq: tegra: Clean up driver's probe / remove Dmitry Osipenko
2019-04-17 22:29 ` Dmitry Osipenko
2019-04-30 0:16 ` Chanwoo Choi
2019-04-30 0:16 ` Chanwoo Choi
2019-04-17 22:29 ` [PATCH v3 09/16] PM / devfreq: tegra: Avoid inconsistency of current frequency value Dmitry Osipenko
2019-04-17 22:29 ` Dmitry Osipenko
2019-04-17 22:29 ` [PATCH v3 10/16] PM / devfreq: tegra: Mark ACTMON's governor as immutable Dmitry Osipenko
2019-04-17 22:29 ` Dmitry Osipenko
2019-04-17 22:29 ` [PATCH v3 11/16] PM / devfreq: tegra: Move governor registration to driver's probe Dmitry Osipenko
2019-04-17 22:29 ` Dmitry Osipenko
2019-04-17 22:29 ` [PATCH v3 12/16] PM / devfreq: tegra: Reconfigure hardware on governor's restart Dmitry Osipenko
2019-04-17 22:29 ` Dmitry Osipenko
2019-04-30 1:19 ` Chanwoo Choi
2019-04-30 1:19 ` Chanwoo Choi
2019-04-17 22:29 ` [PATCH v3 13/16] PM / devfreq: tegra: Support Tegra30 Dmitry Osipenko
2019-04-17 22:29 ` Dmitry Osipenko
2019-04-18 0:21 ` Chanwoo Choi
2019-04-18 0:21 ` Chanwoo Choi
2019-04-17 22:29 ` [PATCH v3 14/16] PM / devfreq: tegra: Enable COMPILE_TEST for the driver Dmitry Osipenko
2019-04-17 22:29 ` Dmitry Osipenko
2019-04-17 22:29 ` [PATCH v3 15/16] PM / devfreq: tegra: Rename tegra-devfreq.c to tegra30-devfreq.c Dmitry Osipenko
2019-04-17 22:29 ` Dmitry Osipenko
2019-04-18 0:22 ` Chanwoo Choi
2019-04-18 0:22 ` Chanwoo Choi
2019-04-17 22:29 ` [PATCH v3 16/16] PM / devfreq: Introduce driver for NVIDIA Tegra20 Dmitry Osipenko
2019-04-17 22:29 ` Dmitry Osipenko
2019-04-30 0:21 ` Chanwoo Choi
2019-04-30 0:21 ` Chanwoo Choi
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