From: Gustavo Pimentel <Gustavo.Pimentel@synopsys.com>
To: Anvesh Salveru <anvesh.s@samsung.com>,
"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: "bhelgaas@google.com" <bhelgaas@google.com>,
"gustavo.pimentel@synopsys.com" <Gustavo.Pimentel@synopsys.com>,
"jingoohan1@gmail.com" <jingoohan1@gmail.com>,
"robh+dt@kernel.org" <robh+dt@kernel.org>,
"mark.rutland@arm.com" <mark.rutland@arm.com>,
"Pankaj Dubey" <pankaj.dubey@samsung.com>
Subject: RE: [PATCH 1/2] dt-bindings: PCI: designware: Add binding for ZRX-DC PHY property
Date: Mon, 21 Oct 2019 15:09:57 +0000 [thread overview]
Message-ID: <DM6PR12MB40102695CA1BB24F7ADE2E6DDA690@DM6PR12MB4010.namprd12.prod.outlook.com> (raw)
In-Reply-To: <1571660755-30270-1-git-send-email-anvesh.s@samsung.com>
On Mon, Oct 21, 2019 at 13:25:55, Anvesh Salveru <anvesh.s@samsung.com>
wrote:
> 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.
>
> Signed-off-by: Anvesh Salveru <anvesh.s@samsung.com>
> Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
> ---
> 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
Reviewed-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
prev parent reply other threads:[~2019-10-21 15:10 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20191021122630epcas5p32bd92762c4304035cad5c1822d96e304@epcas5p3.samsung.com>
2019-10-21 12:25 ` Anvesh Salveru
2019-10-21 14:15 ` Andrew Murray
2019-10-21 14:56 ` Pankaj Dubey
2019-10-21 15:04 ` Andrew Murray
2019-10-21 15:09 ` Gustavo Pimentel [this message]
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