On 9/28/20 5:51 AM, Dmitry Osipenko wrote: > It's safe to enable the ACTMON clock at any time during driver probing, > even if we don't know the state of hardware, because it's used only for > collecting and processing stats, and interrupt is kept disabled. This > allows us to slightly improve code which performs initial hardware > resetting by making use of a single reset_control_reset() instead of > assert/deassert pair. Secondly, a potential error of the reset-control > API is handled nicely now. > > Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx> > --- > drivers/devfreq/tegra30-devfreq.c | 8 +++++--- > 1 file changed, 5 insertions(+), 3 deletions(-) > > diff --git a/drivers/devfreq/tegra30-devfreq.c b/drivers/devfreq/tegra30-devfreq.c > index dedd39de7367..f5e74c2ede85 100644 > --- a/drivers/devfreq/tegra30-devfreq.c > +++ b/drivers/devfreq/tegra30-devfreq.c > @@ -822,8 +822,6 @@ static int tegra_devfreq_probe(struct platform_device *pdev) > return err; > } > > - reset_control_assert(tegra->reset); > - > err = clk_prepare_enable(tegra->clock); > if (err) { > dev_err(&pdev->dev, > @@ -831,7 +829,11 @@ static int tegra_devfreq_probe(struct platform_device *pdev) > return err; > } > > - reset_control_deassert(tegra->reset); > + err = reset_control_reset(tegra->reset); > + if (err) { > + dev_err(&pdev->dev, "Failed to reset hardware: %d\n", err); > + goto disable_clk; > + } > > rate = clk_round_rate(tegra->emc_clock, ULONG_MAX); > if (rate < 0) { > Applied it. Thanks. -- Best Regards, Chanwoo Choi Samsung Electronics