Re: [PATCH v2 1/6] dt-bindings: PCI: Add bindings for Brcmstb EP voltage regulators
From: Rob Herring <robh@kernel.org>
Date: 2020-12-09 14:02:38
Also in:
linux-arm-kernel, linux-pci, lkml
On Mon, Nov 30, 2020 at 04:11:38PM -0500, Jim Quinlan wrote:
quoted hunk ↗ jump to hunk
Quite similar to the regulator bindings found in "rockchip-pcie-host.txt", this allows optional regulators to be attached and controlled by the PCIe RC driver. Signed-off-by: Jim Quinlan <redacted> --- .../devicetree/bindings/pci/brcm,stb-pcie.yaml | 12 ++++++++++++ 1 file changed, 12 insertions(+)diff --git a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml index 807694b4f41f..baacc3d7ec87 100644 --- a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml +++ b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml@@ -85,6 +85,18 @@ properties: minItems: 1 maxItems: 3 + vpcie12v-supply: + description: 12v regulator phandle for the endpoint device + + vpcie3v3-supply: + description: 3.3v regulator phandle for the endpoint device
12V and 3.3V are standard slot supplies, can you add them to pci-bus.yaml. Then some day maybe we can have common slot handling code. With that, here you just need: vpcie3v3-supply: true
+ + vpcie1v8-supply: + description: 1.8v regulator phandle for the endpoint device + + vpcie0v9-supply: + description: 0.9v regulator phandle for the endpoint device
These are not standard. They go to a soldered down device or non-standard connector? For the former, the device should really be described in DT and the supplies added there. Mini PCIe connector also has 1.5V supply. Rob