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[46.91.239.54]) by smtp.gmail.com with ESMTPSA id e7sm3414052wmd.0.2019.06.20.02.18.37 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Thu, 20 Jun 2019 02:18:38 -0700 (PDT) Date: Thu, 20 Jun 2019 11:18:36 +0200 From: Thierry Reding To: Jon Hunter Cc: Rob Herring , Mark Rutland , devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH 2/3] arm64: tegra: Update Jetson TX1 GPU regulator timings Message-ID: <20190620091836.GG26689@ulmo> References: <20190620081702.17209-1-jonathanh@nvidia.com> <20190620081702.17209-3-jonathanh@nvidia.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="5L6AZ1aJH5mDrqCQ" Content-Disposition: inline In-Reply-To: <20190620081702.17209-3-jonathanh@nvidia.com> User-Agent: Mutt/1.11.4 (2019-03-13) Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org --5L6AZ1aJH5mDrqCQ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Jun 20, 2019 at 09:17:01AM +0100, Jon Hunter wrote: > The GPU regulator enable ramp delay for Jetson TX1 is set to 1ms which > not sufficient because the enable ramp delay has been measured to be > greater than 1ms. Furthermore, the downstream kernels released by NVIDIA > for Jetson TX1 are using a enable ramp delay 2ms and a settling delay of > 160us. Update the GPU regulator enable ramp delay for Jetson TX1 to be > 2ms and add a settling delay of 160us. >=20 > Cc: stable@vger.kernel.org > Signed-off-by: Jon Hunter > --- > arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) Applied to for-5.3/arm64/dt, and I added this Fixes: line: Fixes: 5e6b9a89afce ("arm64: tegra: Add VDD_GPU regulator to Jetson TX1") Thanks, Thierry --5L6AZ1aJH5mDrqCQ Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAl0LT2wACgkQ3SOs138+ s6EIWg//ZOfSQYRaxiwtqAkQMKHfXrfR26rxjTtrybyAQY/NU1shhUp7o6j1teYE 4gCLySuu04WRQQJUfogtufH4GJvYfmY9WOC+6sJAiCB1adKvQQ2beSl2fCO8Emj6 Isk7rE6hOoj+XKysoMDzhAi+8uK61dcRAAeYRjLIRRB1rsXO273FRfT4TYLZodRm xEUH5jKhaWrhSi8fhJzxjzApuMYHDpB3Oll5tWlucJwms6IltRvXyRomYa4ktmC7 l8D3s3DpKt/HwDztLSIZOi3xP5qpPo5jPujNIBcqXwPOuIqvkKdqU/T5YudvHpHQ c7Sg/WOF0vhCb1Nt6CKEMuwZg8FHyFHHm3xMmRPdK5Q+Vqr+30jElLwIOrjn9lsk IfJjfQZ5psUrHG8zerCcvJOHaZ8I+CKBEYcmyqPOJy7poXBRyppvM5HxuxCBt60H l0LAQpfMGFx7ZzJdzUzLedujp2ZjlGo3zZi1/LIU0fkPe/f9afF24lN7Gsjn7An1 yJkiK30cceof2bklpNr+QY1bsWJJFRrJ+m4/StkaOaZAxxNAoI+o+4xzs7gsy0HP S6sbvjLnO1y10ODMZzjaL6dFtWht/O6lskhXD3alC5fF44shDHcms4Wh7f3FbUBr qByVMuFvH0W4MFqzbcqQNhq/lPjRKSLu4C+vj4OduQHWJON+Vhc= =ynW/ -----END PGP SIGNATURE----- --5L6AZ1aJH5mDrqCQ--