lkml.org 
[lkml]   [2019]   [Apr]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v2 02/19] PM / devfreq: tegra: Replace readl-writel with relaxed versions
From
Date
Hi,

On 19. 4. 15. 오후 11:54, Dmitry Osipenko wrote:
> 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)
>

Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>

--
Best Regards,
Chanwoo Choi
Samsung Electronics

\
 
 \ /
  Last update: 2019-04-17 03:01    [W:0.262 / U:1.936 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site