lkml.org 
[lkml]   [2019]   [Apr]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 02/19] PM / devfreq: tegra: Replace readl-writel with relaxed versions
Date
There is no need to insert memory barrier on each readl/writel
invocation, hence use the relaxed versions.

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 02905978abe1..0c0909fba545 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
\
 
 \ /
  Last update: 2019-04-15 16:59    [W:0.267 / U:0.256 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site