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@xxxxxxxxx>
> ---
> 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@xxxxxxxxxxx>
--
Best Regards,
Chanwoo Choi
Samsung Electronics
