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Thu, 7 Jan 2021 15:30:49 +0000 (GMT) From: Shradha Todi To: linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org, linux-pci@vger.kernel.org Cc: pankaj.dubey@samsung.com, sriram.dash@samsung.com, niyas.ahmed@samsung.com, p.rajanbabu@samsung.com, l.mehra@samsung.com, hari.tv@samsung.com, Shradha Todi , Anvesh Salveru , Rob Herring , Kishon Vijay Abraham I , Vidya Sagar Subject: [PATCH v7 3/5] dt-bindings: PHY: P2U: Add binding for ZRX-DC PHY property Date: Thu, 7 Jan 2021 20:58:41 +0530 Message-Id: <1610033323-10560-4-git-send-email-shradha.t@samsung.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1610033323-10560-1-git-send-email-shradha.t@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupkleLIzCtJLcpLzFFi42LZdlhTXbfK6Hu8QftCNosfqycwW3yctpLJ 4sLTHjaLO89vMFpc3jWHzeLsvONsFp1fZrFZPJnyiNXi6MZgi0Vbv7BbtO49wm7Re7jW4sZ6 dotr23kd+Dx2zrrL7rFpVSebR2/zOzaPvi2rGD2O39jO5PF5k1wAWxSXTUpqTmZZapG+XQJX xoPpm5gLOrgr/mx5y9zAuIOzi5GTQ0LARGL9yk1MXYxcHEICuxklnn09xQKSEBL4xChx4ow1 ROIzo8S05x3MMB3vfr1jg0jsYpSYdLebFcJpYZJ4NOEaI0gVm4CWROPXLrAOEYEoiZnbW8GK mAWuMkl8ObkFLCEsECKxcckbJhCbRUBVomNDCzuIzSvgKjGr6QsrxDo5iZvnOsHqOQXcJL5N Wwc2SEKgkUPi27dvbBBFLhI3e1YwQtjCEq+Ob2GHsKUkXva3Qdn5ElMvPAV6jgPIrpBY3lMH EbaXOHBlDliYWUBTYv0ufYiwrMTUU+vATmMW4JPo/f2ECSLOK7FjHoytLPHl7x4WCFtSYt6x y1Ane0jMmHiYBRIoMxkltl5bzT6BUW4WwooFjIyrGCVTC4pz01OLTQuM8lLL9YoTc4tL89L1 kvNzNzGCU4uW1w7Ghw8+6B1iZOJgPMQowcGsJMJrcexLvBBvSmJlVWpRfnxRaU5q8SFGaQ4W JXHeHQYP4oUE0hNLUrNTUwtSi2CyTBycUg1MouWO3ZMcRQ4duBrQKnBz38pvClPu2WqbBMfF 5Aq8fsYtGSpw+smd3PeC9l8f3v/+bYf9bbuNro4Nwk9ediq8Tme4cbD4gUrJTIVljzzO+b5v t7knp//IUPH1PQ4+126fPIFX0+tOGc3vlyto52UR5bC5+G7DXkn2oE/Ln7HNWGKmeuCGdoOu TOcnjQ0v6sJjlj8RizPfYqafXRMb/CXX4EHWhU22Dg/3nni6xcrSvqZWdn4p/xLBW3MXmX5l dtnvtoJ3RZpgycfVS8LdxCRnS62paSnVWpvEoWe9fuGlRVIX9vBdTDugqD6vtzyl41Dk3x1N /7PPTOzyeDW/csu2N9Pn86zZuPLl5LC5d0s0lViKMxINtZiLihMB5TcdsJwDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrNLMWRmVeSWpSXmKPExsWy7bCSvK625vd4g2t/DSx+rJ7AbPFx2kom iwtPe9gs7jy/wWhxedccNouz846zWXR+mcVm8WTKI1aLoxuDLRZt/cJu0br3CLtF7+Faixvr 2S2ubed14PPYOesuu8emVZ1sHr3N79g8+rasYvQ4fmM7k8fnTXIBbFFcNimpOZllqUX6dglc GQ+mb2Iu6OCu+LPlLXMD4w7OLkZODgkBE4l3v96xdTFycQgJ7GCUuPvkMSNEQlLi88V1TBC2 sMTKf8/ZIYqamCQW/TkEVsQmoCXR+LWLGcQWEYiRWP/vJitIEbPAQyaJld8PgxUJCwRJnO2+ zw5iswioSnRsaAGzeQVcJWY1fWGF2CAncfNcJ9ggTgE3iW/T1gHFOYC2uUo8/BQygZFvASPD KkbJ1ILi3PTcYsMCo7zUcr3ixNzi0rx0veT83E2M4PDV0trBuGfVB71DjEwcjIcYJTiYlUR4 LY59iRfiTUmsrEotyo8vKs1JLT7EKM3BoiTOe6HrZLyQQHpiSWp2ampBahFMlomDU6qBac5H /nSPYJW10ZyrNVdaO+4Tni9SyrQx9MqppqU278oq+x+99vhWYcJ5MGzeH+Wj80IcF7xe/DjA x0wr8qGmyLmo9MSMVuYdVaLxO2TsSrZrHjr9efv+voAz7u8mcj676Vs2xVZ04oQ7S7driU8p MfnJu4HbsFnm/ZTXvHmzJkQtSprAcONI5wndeeEix9LeVV/W/Ppjbb780ZcLIi8yTphyr0fS +su/R2tFTzZt+jZj8vbXD1dsZDFq07l1ca7uLpYlwhun+JQ/+fn4Ps+fm2nvrGZznm/yki38 qXUzf3X01/PbK12f1pdeFfmSGiPx45yPca9Q5Zk+Ie134Zff/711umvzS5aEO+w/t6/L9Puj xFKckWioxVxUnAgARFvAg84CAAA= X-CMS-MailID: 20210107153051epcas5p4f54210f89f8b8d2e18be016521657be0 X-Msg-Generator: CA X-Sendblock-Type: REQ_APPROVE CMS-TYPE: 105P X-CMS-RootMailID: 20210107153051epcas5p4f54210f89f8b8d2e18be016521657be0 References: <1610033323-10560-1-git-send-email-shradha.t@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Add support for ZRX-DC compliant PHYs. If PHY is not compliant to ZRX-DC specification, then after every 100ms link should transition to recovery state during the low power states which increases power consumption. Platforms with ZRX-DC compliant PHY can use "phy-zrxdc-compliant" property in PCIe PHY DT node. Signed-off-by: Anvesh Salveru Signed-off-by: Pankaj Dubey Signed-off-by: Shradha Todi Cc: Rob Herring Cc: Kishon Vijay Abraham I Cc: Vidya Sagar --- Documentation/devicetree/bindings/phy/phy-tegra194-p2u.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/phy/phy-tegra194-p2u.txt b/Documentation/devicetree/bindings/phy/phy-tegra194-p2u.txt index d23ff90..73f2fa0 100644 --- a/Documentation/devicetree/bindings/phy/phy-tegra194-p2u.txt +++ b/Documentation/devicetree/bindings/phy/phy-tegra194-p2u.txt @@ -15,6 +15,10 @@ Required properties: Required properties for PHY port node: - #phy-cells: Defined by generic PHY bindings. Must be 0. +Optional properties for other PHY features: +- phy-zrxdc-compliant: This property is needed if phy complies with the + ZRX-DC specification. + Refer to phy/phy-bindings.txt for the generic PHY binding properties. Example: