From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Manikanta Maddireddy Subject: [PATCH 28/30] dt-bindings: pci: tegra: Document nvidia,rst-gpio optional prop Date: Thu, 11 Apr 2019 22:33:53 +0530 Message-ID: <20190411170355.6882-29-mmaddireddy@nvidia.com> In-Reply-To: <20190411170355.6882-1-mmaddireddy@nvidia.com> References: <20190411170355.6882-1-mmaddireddy@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain To: thierry.reding@gmail.com, bhelgaas@google.com, robh+dt@kernel.org, mark.rutland@arm.com, jonathanh@nvidia.com, lorenzo.pieralisi@arm.com, vidyas@nvidia.com Cc: linux-tegra@vger.kernel.org, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, Manikanta Maddireddy List-ID: Document "nvidia,rst-gpio" optional property which supports GPIO based PERST# signal. Signed-off-by: Manikanta Maddireddy --- Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt b/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt index dca8393b86d1..23928fd59538 100644 --- a/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt +++ b/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt @@ -75,6 +75,8 @@ Optional properties: Pass pinctrl phandle to allow driver bring PCIe IO out of DPD state. - nvidia,plat-gpios: A list of platform specific gpios which controls endpoint's internal regulator or PCIe logic. +- nvidia,rst-gpio: If GPIO is used as PERST# signal instead of available + SFIO, add this property with phandle to GPIO controller and GPIO number. Required properties on Tegra124 and later (deprecated): - phys: Must contain an entry for each entry in phy-names. @@ -671,6 +673,7 @@ Board DTS: pci@1,0 { nvidia,num-lanes = <4>; + nvidia,rst-gpio = <&tegra_main_gpio TEGRA_MAIN_GPIO(A, 3) 0>; status = "okay"; }; -- 2.17.1