From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: Re: [PATCH V5 09/16] Documentation/devicetree: Add PCIe supports-clkreq property Date: Fri, 26 Apr 2019 10:22:29 -0500 Message-ID: <20190426152229.GA8492@bogus> References: <20190424052004.6270-1-vidyas@nvidia.com> <20190424052004.6270-10-vidyas@nvidia.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20190424052004.6270-10-vidyas@nvidia.com> Sender: linux-kernel-owner@vger.kernel.org To: Vidya Sagar Cc: lorenzo.pieralisi@arm.com, bhelgaas@google.com, mark.rutland@arm.com, thierry.reding@gmail.com, jonathanh@nvidia.com, kishon@ti.com, catalin.marinas@arm.com, will.deacon@arm.com, jingoohan1@gmail.com, gustavo.pimentel@synopsys.com, mperttunen@nvidia.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kthota@nvidia.com, mmaddireddy@nvidia.com, sagar.tv@gmail.com List-Id: devicetree@vger.kernel.org On Wed, Apr 24, 2019 at 10:49:57AM +0530, Vidya Sagar wrote: > Some host controllers need to know the existence of clkreq signal routing to > downstream devices to be able to advertise low power features like ASPM L1 > substates. Without clkreq signal routing being present, enabling ASPM L1 sub > states might lead to downstream devices falling off the bus. Hence a new device > tree property 'supports-clkreq' is added to make such host controllers > aware of clkreq signal routing to downstream devices. Please be consistent with subjects (Use 'dt-bindings: ...') With that change, Reviewed-by: Rob Herring > > Signed-off-by: Vidya Sagar > --- > Changes since [v4]: > * None > > Changes since [v3]: > * Rebased on top of linux-next top of the tree > > Changes since [v2]: > * None > > Changes since [v1]: > * This is a new patch in v2 series > > Documentation/devicetree/bindings/pci/pci.txt | 5 +++++ > 1 file changed, 5 insertions(+)