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[46.91.239.54]) by smtp.gmail.com with ESMTPSA id e10sm1008232wme.3.2019.05.29.07.05.34 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Wed, 29 May 2019 07:05:34 -0700 (PDT) Date: Wed, 29 May 2019 16:05:33 +0200 From: Thierry Reding 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, devicetree@vger.kernel.org Subject: Re: [PATCH V2 12/12] soc/tegra: pmc: configure tegra deep sleep control settings Message-ID: <20190529140533.GC17679@ulmo> References: <1559084936-4610-1-git-send-email-skomatineni@nvidia.com> <1559084936-4610-13-git-send-email-skomatineni@nvidia.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="4jXrM3lyYWu4nBt5" Content-Disposition: inline In-Reply-To: <1559084936-4610-13-git-send-email-skomatineni@nvidia.com> User-Agent: Mutt/1.11.4 (2019-03-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --4jXrM3lyYWu4nBt5 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, May 28, 2019 at 04:08:56PM -0700, Sowjanya Komatineni wrote: > Tegra210 and prior Tegra chips have power request signal polarity, > deep sleep entry and wake related timings which are platform specific > that should be configured before entering into deep sleep. >=20 > Below are the timings specific configurations for deep sleep and wake. > - Core rail power-on stabilization timer > - OSC clock stabilization timer after SOC rail power is stabilized. > - Core power off time is the minimum wake delay to keep the system > in deep sleep state irrespective of any quick wake event. >=20 > These values depends on the discharge time of regulators and turn OFF > time of the PMIC to allow the complete system to finish entering into > deep sleep state. >=20 > These values vary based on the platform design and are specified > through the device tree. >=20 > This patch has implementation to configure these configurations which > are must to have for deep sleep state. >=20 > Signed-off-by: Sowjanya Komatineni > --- > arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 7 +++++++ > drivers/soc/tegra/pmc.c | 18 ++++++++++++++++++ > 2 files changed, 25 insertions(+) Please split up the DT and driver changes into separate patches. 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