| Message ID | 20211119220756.18628-4-jim2101024@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | PCI: brcmstb: root port turns on sub-device power | expand |
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(+) Hi Rob, is it Ok to pull this patch ? I would like to merge the series, please let me know. Thanks, Lorenzo > 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 */ > + 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; > + }; > + }; > }; > }; > -- > 2.17.1 >
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 > >
On Tue, Dec 7, 2021 at 3:17 PM Rob Herring <robh@kernel.org> wrote: > > 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? Yes, my miss, will fix. > > > + 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. Got it. Do you have feedback for any of the other commits? Thanks, Jim Quinlan Broadcom STB > > > + }; > > + }; > > }; > > }; > > -- > > 2.17.1 > > > >
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 */ + 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; + }; + }; }; };
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(+)