| Subject | Re: [PATCH v8 02/21] pinctrl: tegra: Add write barrier after all pinctrl register writes | From | Dmitry Osipenko <> | Date | Fri, 9 Aug 2019 14:39:31 +0300 |
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09.08.2019 2:46, Sowjanya Komatineni пишет: > This patch adds write barrier after all pinctrl register writes > during resume to make sure all pinctrl changes are complete. > > Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com> > --- > drivers/pinctrl/tegra/pinctrl-tegra.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/pinctrl/tegra/pinctrl-tegra.c b/drivers/pinctrl/tegra/pinctrl-tegra.c > index 982ee634b3b1..f49fe29fb6df 100644 > --- a/drivers/pinctrl/tegra/pinctrl-tegra.c > +++ b/drivers/pinctrl/tegra/pinctrl-tegra.c > @@ -677,6 +677,8 @@ static int tegra_pinctrl_resume(struct device *dev) > writel_relaxed(*backup_regs++, regs++); > } > > + /* make sure all the pinmux register writes are complete */ > + wmb(); > return 0; > } > >
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
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