Commit ea372f45 authored by Jim Quinlan's avatar Jim Quinlan Committed by Bjorn Helgaas
Browse files

dt-bindings: PCI: Add bindings for Brcmstb EP voltage regulators 

Add bindings for Brcmstb EP voltage regulators.  A new mechanism is to be
added to the Linux PCI subsystem that will allocate and turn on/off
regulators.  These are standard regulators -- vpcie12v, vpcie3v3, and
vpcie3v3aux -- placed in the DT in the bridge node under the host bridge
device.

The use of a regulator property in the PCIe EP subnode such as
"vpcie12v-supply" depends on a pending pullreq to the pci-bus.yaml
file at

  https://github.com/devicetree-org/dt-schema/pull/63

Link: https://lore.kernel.org/r/20220106160332.2143-4-jim2101024@gmail.com


Signed-off-by: default avatarJim Quinlan <jim2101024@gmail.com>
Signed-off-by: default avatarLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Acked-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
parent 504253e4

Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml

+19 −0
Original line number Diff line number Diff line
@@ -159,5 +159,24 @@ examples: 
                                 <0x42000000 0x1 0x80000000 0x3 0x00000000 0x0 0x80000000>;

                    brcm,enable-ssc;

                    brcm,scb-sizes =  <0x0000000080000000 0x0000000080000000>;



                    /* PCIe bridge, Root Port */

                    pci@0,0 {

                            #address-cells = <3>;

                            #size-cells = <2>;

                            reg = <0x0 0x0 0x0 0x0 0x0>;

                            compatible = "pciclass,0604";

                            device_type = "pci";

                            vpcie3v3-supply = <&vreg7>;

                            ranges;



                            /* PCIe endpoint */

                            pci-ep@0,0 {

                                    assigned-addresses =

                                        <0x82010000 0x0 0xf8000000 0x6 0x00000000 0x0 0x2000>;

                                    reg = <0x0 0x0 0x0 0x0 0x0>;

                                    compatible = "pci14e4,1688";

                            };

                    };

            };

    };