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Mon, 28 Oct 2019 12:17:46 +0000 (GMT) From: Anvesh Salveru To: linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: bhelgaas@google.com, gustavo.pimentel@synopsys.com, jingoohan1@gmail.com, pankaj.dubey@samsung.com, Anvesh Salveru , Rob Herring , Mark Rutland Subject: [PATCH v2 1/2] dt-bindings: PCI: designware: Add binding for ZRX-DC PHY property Date: Mon, 28 Oct 2019 17:46:27 +0530 Message-Id: <1572264988-17455-2-git-send-email-anvesh.s@samsung.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1572264988-17455-1-git-send-email-anvesh.s@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrJIsWRmVeSWpSXmKPExsWy7bCmum7unW2xBqs2sVic3bWQ1WJJU4bF /CPnWC123e1gt1jxZSa7xeVdc9gszs47zmax9PpFJotFW7+wW7TuPcLuwOWxZt4aRo+ds+6y eyzYVOqxaVUnm0ffllWMHlv2f2b0+LxJLoA9issmJTUnsyy1SN8ugSvjy8efTAX3uSsuLZ7G 1sDYytXFyMkhIWAisezjSXYQW0hgN6NE62rLLkYuIPsTo8Tbt1sZIZxvjBKr/i5jgunYcvQM E0RiL6NE34zNzBDtLUwSjfc8QGw2AW2Jn0f3Ao3l4BARiJQ43sAKUs8scAto0OHprCA1wgLR Ems2b2MBqWERUJXYd0wYJMwr4CJxfs8TVohdchI3z3WCjecUcJX4fXYVG8gcCYEDbBJP9sxl gyhykVhy7B6ULSzx6vgWdghbSuLzu71Q8XyJ3rtLoeI1ElPudjBC2PYSB67MAbuBWUBTYv0u fZAwswCfRO/vJ0wgYQkBXomONiEIU0mibWY1RKOExOL5N5khbA+Ju0u7WCAhMoNR4ti5TrYJ jLKzEIYuYGRcxSiZWlCcm55abFpgmJdarlecmFtcmpeul5yfu4kRnCC0PHcwzjrnc4hRgINR iYd3wuVtsUKsiWXFlbmHGCU4mJVEeC+eAQrxpiRWVqUW5ccXleakFh9ilOZgURLnncR6NUZI ID2xJDU7NbUgtQgmy8TBKdXA2Cia6u+05qNhclh+XTi75bZbnzac5X5wZIM/U6TbWwVr1bXx 0xMrJ5qdFVqiwO7jty6/Mbyft3TurydFkyepip5T1/jydpb/7f1LdpwpP91SpDHFd8b7Ujs7 vqwPDLFOH1+sy1wwYX/i0R195yuXVPFMsNpivNpq/1ozw8vpM83UVrYIZWx2UWIpzkg01GIu Kk4EABBeOJwMAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrFLMWRmVeSWpSXmKPExsWy7bCSnG7OnW2xBudbRS3O7lrIarGkKcNi /pFzrBa77nawW6z4MpPd4vKuOWwWZ+cdZ7NYev0ik8WirV/YLVr3HmF34PJYM28No8fOWXfZ PRZsKvXYtKqTzaNvyypGjy37PzN6fN4kF8AexWWTkpqTWZZapG+XwJXx5eNPpoL73BWXFk9j a2Bs5epi5OSQEDCR2HL0DFMXIxeHkMBuRoktTdeZIRISEl/2fmWDsIUlVv57zg5R1MQksW33 BHaQBJuAtsTPo3uBbA4OEYFoiQ2vhEBqmAUeMEr8+jyVEaRGWCBSYt/GKUwgNSwCqhL7jgmD hHkFXCTO73nCCjFfTuLmuU6wvZwCrhK/z64C2ysEVLPi7A7WCYx8CxgZVjFKphYU56bnFhsW GOWllusVJ+YWl+al6yXn525iBIeoltYOxhMn4g8xCnAwKvHwTri8LVaINbGsuDL3EKMEB7OS CO/FM0Ah3pTEyqrUovz4otKc1OJDjNIcLErivPL5xyKFBNITS1KzU1MLUotgskwcnFINjKxF 3Fdnr+9bcORVUm7oB+2MXwofHAtmPXU7UrJ0rfYhpcrFqfb1imVP2GZMOmPxvj1jTo7WuQDT JVL8BprJPn/LpBS5L74Jz528YcMOrZW/MrZYesy88qZorcPVVQEH1wRknV78L97m7NROnrS4 h8azHT49918cllasVGjTvOS48r784ydy5ZRYijMSDbWYi4oTASzTXm9NAgAA X-CMS-MailID: 20191028121748epcas5p3054c9583c14a2edde9f725d005895a04 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 105P X-CMS-RootMailID: 20191028121748epcas5p3054c9583c14a2edde9f725d005895a04 References: <1572264988-17455-1-git-send-email-anvesh.s@samsung.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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 "snps,phy-zrxdc-compliant" property in DesignWare controller DT node. CC: Rob Herring CC: Mark Rutland Signed-off-by: Anvesh Salveru Signed-off-by: Pankaj Dubey Reviewed-by: Gustavo Pimentel --- Change in v2: None Documentation/devicetree/bindings/pci/designware-pcie.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/pci/designware-pcie.txt b/Documentation/devicetree/bindings/pci/designware-pcie.txt index 78494c4050f7..9507ac38ac89 100644 --- a/Documentation/devicetree/bindings/pci/designware-pcie.txt +++ b/Documentation/devicetree/bindings/pci/designware-pcie.txt @@ -38,6 +38,8 @@ Optional properties: for data corruption. CDM registers include standard PCIe configuration space registers, Port Logic registers, DMA and iATU (internal Address Translation Unit) registers. +- snps,phy-zrxdc-compliant: This property is needed if phy complies with the + ZRX-DC specification. RC mode: - num-viewport: number of view ports configured in hardware. If a platform does not specify it, the driver assumes 2. -- 2.17.1