From 5992b044989daf281a2ab78b2e841cd6bd51d93a Mon Sep 17 00:00:00 2001 From: Manikanta Maddireddy Date: Tue, 18 Jun 2019 23:32:01 +0530 Subject: dt-bindings: pci: tegra: Document PCIe DPD pinctrl optional prop Document PCIe DPD pinctrl optional property to put PEX clk & BIAS pads in low power mode. Signed-off-by: Manikanta Maddireddy Signed-off-by: Lorenzo Pieralisi Reviewed-by: Rob Herring Acked-by: Thierry Reding --- Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt b/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt index 145a4f04194f..7939bca47861 100644 --- a/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt +++ b/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt @@ -65,6 +65,14 @@ Required properties: - afi - pcie_x +Optional properties: +- pinctrl-names: A list of pinctrl state names. Must contain the following + entries: + - "default": active state, puts PCIe I/O out of deep power down state + - "idle": puts PCIe I/O into deep power down state +- pinctrl-0: phandle for the default/active state of pin configurations. +- pinctrl-1: phandle for the idle state of pin configurations. + Required properties on Tegra124 and later (deprecated): - phys: Must contain an entry for each entry in phy-names. - phy-names: Must include the following entries: -- cgit v1.2.3 From 0fc8b82f31c4a7bea4c487d380a10d1271bf8d4d Mon Sep 17 00:00:00 2001 From: Manikanta Maddireddy Date: Tue, 18 Jun 2019 23:32:04 +0530 Subject: PCI: Add DT binding for "reset-gpios" property Add DT binding for "reset-gpios" property which supports GPIO based PERST# signal. Signed-off-by: Manikanta Maddireddy Signed-off-by: Lorenzo Pieralisi Reviewed-by: Rob Herring Acked-by: Thierry Reding --- Documentation/devicetree/bindings/pci/pci.txt | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/pci/pci.txt b/Documentation/devicetree/bindings/pci/pci.txt index 92c01db610df..2a5d91024059 100644 --- a/Documentation/devicetree/bindings/pci/pci.txt +++ b/Documentation/devicetree/bindings/pci/pci.txt @@ -24,6 +24,9 @@ driver implementation may support the following properties: unsupported link speed, for instance, trying to do training for unsupported link speed, etc. Must be '4' for gen4, '3' for gen3, '2' for gen2, and '1' for gen1. Any other values are invalid. +- reset-gpios: + If present this property specifies PERST# GPIO. Host drivers can parse the + GPIO and apply fundamental reset to endpoints. PCI-PCI Bridge properties ------------------------- -- cgit v1.2.3