mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

PM / devfreq: tegra: Replace readl-writel with relaxed versions 

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>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
This commit is contained in:
Dmitry Osipenko 2019-05-02 02:38:01 +03:00 committed by MyungJoo Ham
parent 62bacb06b9
commit efe9043db4
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/devfreq/tegra-devfreq.c
View File

@ -179,23 +179,23 @@ 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)