From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thierry Reding Subject: Re: [PATCH v8 01/21] pinctrl: tegra: Fix write barrier placement in pmx_writel Date: Mon, 12 Aug 2019 11:20:21 +0200 Message-ID: <20190812092021.GC8903@ulmo> References: <1565308020-31952-1-git-send-email-skomatineni@nvidia.com> <1565308020-31952-2-git-send-email-skomatineni@nvidia.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="i7F3eY7HS/tUJxUd" Return-path: Content-Disposition: inline In-Reply-To: <1565308020-31952-2-git-send-email-skomatineni@nvidia.com> Sender: linux-kernel-owner@vger.kernel.org To: Sowjanya Komatineni Cc: jonathanh@nvidia.com, tglx@linutronix.de, jason@lakedaemon.net, marc.zyngier@arm.com, linus.walleij@linaro.org, stefan@agner.ch, mark.rutland@arm.com, pdeschrijver@nvidia.com, pgaikwad@nvidia.com, sboyd@kernel.org, linux-clk@vger.kernel.org, linux-gpio@vger.kernel.org, jckuo@nvidia.com, josephl@nvidia.com, talho@nvidia.com, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, mperttunen@nvidia.com, spatra@nvidia.com, robh+dt@kernel.org, digetx@gmail.com, devicetree@vger.kernel.org, rjw@rjwysocki.net, viresh.kumar@linaro.org, linux-pm@vger.kernel.org List-Id: devicetree@vger.kernel.org --i7F3eY7HS/tUJxUd Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Aug 08, 2019 at 04:46:40PM -0700, Sowjanya Komatineni wrote: > pmx_writel uses writel which inserts write barrier before the > register write rather. >=20 > This patch has fix to replace writel with writel_relaxed followed > by a write barrier to ensure write operation before the barrier > is completed for successful pinctrl change. >=20 > Signed-off-by: Sowjanya Komatineni > --- > drivers/pinctrl/tegra/pinctrl-tegra.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) Acked-by: Thierry Reding --i7F3eY7HS/tUJxUd Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAl1RL1EACgkQ3SOs138+ s6GgOQ/+KHEjD8Jzg9BS66GmKuNoOclOxDM03l3CoYiOGhyyUsPjifCTvtnDFGwa lqaq7sH3V7fOCC/qun2i5BE8pumI+NgLEkm9tYKvmLCn2vKCzIpv2LGX37+e91M8 GiMD27bmKkEDW4nLgIza9y3v/t6kJ4XhwKnFA2+eMjqZB9SNleworpYAZp832AIj nl0HbqRiGpkLjcIaWAibNY5+0OEpRB6AhZlhsCWz5h7c00Jad8qK1rBnoLxDiq7a s5jPfDc8fYWQ6OnIutLEjm+GdSx17odH7R+mprW9OiKqWPmdZUp/aZEHDyS434Al +c8I0wEpxWWCEk924kF6oPytP6KKjOHy29SdhPg0RV7uuK/qPm6ylaSxem3NyCMi sibGMlfXuMKdFaDbCEIv0XbVsu7nmu1I0h7PV1Gy+oCSnPI8EJ+tFiGozbYoy9hQ INdJWkMQLWXsCRsECrP1zWyDdiA5zhI0nRNVSflZi5Lz9GkcGa8fmi+r0o4vOL+x Lsy85RpW8ukLteRRUf51hpXNcvsXTGXZEempESfd+uLu7eHTpq8WciMDDT0//ekQ L4xaq/9TB7s0sDH3D2O8VOd5s1tR0nHl0DojzeY/YS25hOi3nW/8/fHaz+1c6z/C cZ7LUpJxyGhfs9Sj00Ftyj2fWVZGuIxFDQXh5ny339ST1DhgPRQ= =NUo9 -----END PGP SIGNATURE----- --i7F3eY7HS/tUJxUd--