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SubjectRe: [PATCH v9 3/7] dt-bindings: PCI: Add bindings for Brcmstb EP voltage regulators
On Fri, Nov 19, 2021 at 05:07:50PM -0500, Jim Quinlan wrote:
> 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
>
> Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
> ---
> .../bindings/pci/brcm,stb-pcie.yaml | 23 +++++++++++++++++++
> 1 file changed, 23 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
> index 22f2ef446f18..7113a7f726e7 100644
> --- a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
> +++ b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
> @@ -159,5 +159,28 @@ examples:
> <0x42000000 0x1 0x80000000 0x3 0x00000000 0x0 0x80000000>;
> brcm,enable-ssc;
> brcm,scb-sizes = <0x0000000080000000 0x0000000080000000>;
> +
> + /* PCIe bridge */

Root port specifically. Didn't Pali mention that before?

> + 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";

> + #address-cells = <3>;
> + #size-cells = <2>;
> +
> + ranges;

These aren't appropriate for an endpoint.

> + };
> + };
> };
> };
> --
> 2.17.1
>
>

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