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[46.91.239.54]) by smtp.gmail.com with ESMTPSA id 17sm3083223wrk.91.2019.05.09.07.35.49 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 09 May 2019 07:35:49 -0700 (PDT) Date: Thu, 9 May 2019 16:35:48 +0200 From: Thierry Reding To: Manikanta Maddireddy Cc: bhelgaas@google.com, robh+dt@kernel.org, mark.rutland@arm.com, jonathanh@nvidia.com, lorenzo.pieralisi@arm.com, vidyas@nvidia.com, linux-tegra@vger.kernel.org, linux-pci@vger.kernel.org, devicetree@vger.kernel.org Subject: Re: [PATCH V2 25/28] PCI: tegra: Put PEX CLK & BIAS pads in DPD mode Message-ID: <20190509143548.GT8907@ulmo> References: <20190423092825.759-1-mmaddireddy@nvidia.com> <20190423092825.759-26-mmaddireddy@nvidia.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="2mNuWrpDTYoom6W8" Content-Disposition: inline In-Reply-To: <20190423092825.759-26-mmaddireddy@nvidia.com> User-Agent: Mutt/1.11.4 (2019-03-13) Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org --2mNuWrpDTYoom6W8 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Apr 23, 2019 at 02:58:22PM +0530, Manikanta Maddireddy wrote: > In Tegra210 AFI design has clamp value for the BIAS pad as 0, which keeps > the bias pad in non power down mode. This is leading to power consumption > of 2 mW in BIAS pad, even if the PCIe partition is powergated. To avoid > unnecessary power consumption, put PEX CLK & BIAS pads in deep power down > mode when PCIe partition is power gated. >=20 > Signed-off-by: Manikanta Maddireddy > --- > V2: Using standard pinctrl functions to apply default and idle states >=20 > drivers/pci/controller/pci-tegra.c | 13 ++++++++++++- > 1 file changed, 12 insertions(+), 1 deletion(-) Acked-by: Thierry Reding --2mNuWrpDTYoom6W8 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAlzUOsQACgkQ3SOs138+ s6HXahAAjFPWMpQsvEGOlqVlUTWHSBFAFGhPNDZtZO3/1w3FZLLA7z8jAVhF0ZMU pM9Izyc84Y9P5MNQGXH++noKX6BilbKw1ku0Bdk0IC/jrXXQ8xfmrPy81IrmniE3 xuylXqcdaFtfmveyrtGLWLSKXQBrO0t+UY7qvPFnZpLUVoo4ghWM1fLlIKYT3vMC +hz9mOMEO4tH0kFKxUFPiN9fROX9JUq2MDCo3pYD8qxqGwWRxvLTolotHAfSJisf K43ChvCEI4hdOr+6fyBK50/jKLrMgC77XIizFG/F2adqehFsVN3WKerigb/HqLKo tHeUs5boX5OB1l52TW9dv2VhJMrIsgURK2zyz1zFd2sHiiJkYwS2MioLDn3/s6rB VPLIIS6vPU4mK99TTH3R4d80JosZ9V5nkqwMXZGtLQP3QSNyNe0iPWJ0ZPHYnb65 ez2fEeDW/nfJ84bEjxZNIq1cB2GPUgOK52Q/sRmFikXd7eEzVFYhG8MhnBpn9iLp cxFxuehOzD3rDAhU24OUJOjoZnC2qo3qU4Iytdn1BSTWqvBO2W1kHfDnBxwajtUf DLeINLvoJg0GrRzN7uEWJC0iuGzERE9oXfZdQYOVdUvI8rF80NQ7pfW/+qp2Pt3g Om/mWgzq/JhpWDD7+hkblTocp9yQMttDDUY+wzxTfsVwID9z4+g= =hei3 -----END PGP SIGNATURE----- --2mNuWrpDTYoom6W8--