2022-04-22 17:37:49

by Herve Codina

[permalink] [raw]
Subject: [PATCH v3 1/8] dt-bindings: PCI: pci-rcar-gen2: Convert bindings to json-schema

Convert Renesas PCI bridge bindings documentation to json-schema.

Signed-off-by: Herve Codina <[email protected]>
---
.../devicetree/bindings/pci/pci-rcar-gen2.txt | 84 ----------
.../bindings/pci/renesas,pci-rcar-gen2.yaml | 156 ++++++++++++++++++
2 files changed, 156 insertions(+), 84 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
create mode 100644 Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml

diff --git a/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt b/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
deleted file mode 100644
index aeba38f0a387..000000000000
--- a/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
+++ /dev/null
@@ -1,84 +0,0 @@
-Renesas AHB to PCI bridge
--------------------------
-
-This is the bridge used internally to connect the USB controllers to the
-AHB. There is one bridge instance per USB port connected to the internal
-OHCI and EHCI controllers.
-
-Required properties:
-- compatible: "renesas,pci-r8a7742" for the R8A7742 SoC;
- "renesas,pci-r8a7743" for the R8A7743 SoC;
- "renesas,pci-r8a7744" for the R8A7744 SoC;
- "renesas,pci-r8a7745" for the R8A7745 SoC;
- "renesas,pci-r8a7790" for the R8A7790 SoC;
- "renesas,pci-r8a7791" for the R8A7791 SoC;
- "renesas,pci-r8a7793" for the R8A7793 SoC;
- "renesas,pci-r8a7794" for the R8A7794 SoC;
- "renesas,pci-rcar-gen2" for a generic R-Car Gen2 or
- RZ/G1 compatible device.
-
-
- When compatible with the generic version, nodes must list the
- SoC-specific version corresponding to the platform first
- followed by the generic version.
-
-- reg: A list of physical regions to access the device: the first is
- the operational registers for the OHCI/EHCI controllers and the
- second is for the bridge configuration and control registers.
-- interrupts: interrupt for the device.
-- clocks: The reference to the device clock.
-- bus-range: The PCI bus number range; as this is a single bus, the range
- should be specified as the same value twice.
-- #address-cells: must be 3.
-- #size-cells: must be 2.
-- #interrupt-cells: must be 1.
-- interrupt-map: standard property used to define the mapping of the PCI
- interrupts to the GIC interrupts.
-- interrupt-map-mask: standard property that helps to define the interrupt
- mapping.
-
-Optional properties:
-- dma-ranges: a single range for the inbound memory region. If not supplied,
- defaults to 1GiB at 0x40000000. Note there are hardware restrictions on the
- allowed combinations of address and size.
-
-Example SoC configuration:
-
- pci0: pci@ee090000 {
- compatible = "renesas,pci-r8a7790", "renesas,pci-rcar-gen2";
- clocks = <&mstp7_clks R8A7790_CLK_EHCI>;
- reg = <0x0 0xee090000 0x0 0xc00>,
- <0x0 0xee080000 0x0 0x1100>;
- interrupts = <0 108 IRQ_TYPE_LEVEL_HIGH>;
- status = "disabled";
-
- bus-range = <0 0>;
- #address-cells = <3>;
- #size-cells = <2>;
- #interrupt-cells = <1>;
- dma-ranges = <0x42000000 0 0x40000000 0 0x40000000 0 0x40000000>;
- interrupt-map-mask = <0xff00 0 0 0x7>;
- interrupt-map = <0x0000 0 0 1 &gic 0 108 IRQ_TYPE_LEVEL_HIGH
- 0x0800 0 0 1 &gic 0 108 IRQ_TYPE_LEVEL_HIGH
- 0x1000 0 0 2 &gic 0 108 IRQ_TYPE_LEVEL_HIGH>;
-
- usb@1,0 {
- reg = <0x800 0 0 0 0>;
- phys = <&usb0 0>;
- phy-names = "usb";
- };
-
- usb@2,0 {
- reg = <0x1000 0 0 0 0>;
- phys = <&usb0 0>;
- phy-names = "usb";
- };
- };
-
-Example board setup:
-
-&pci0 {
- status = "okay";
- pinctrl-0 = <&usb0_pins>;
- pinctrl-names = "default";
-};
diff --git a/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml b/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
new file mode 100644
index 000000000000..494eb975c146
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
@@ -0,0 +1,156 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/renesas,pci-rcar-gen2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas AHB to PCI bridge
+
+maintainers:
+ - Marek Vasut <[email protected]>
+ - Yoshihiro Shimoda <[email protected]>
+
+description: |
+ This is the bridge used internally to connect the USB controllers to the
+ AHB. There is one bridge instance per USB port connected to the internal
+ OHCI and EHCI controllers.
+
+allOf:
+ - $ref: /schemas/pci/pci-bus.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - renesas,pci-r8a7742 # RZ/G1H
+ - renesas,pci-r8a7743 # RZ/G1M
+ - renesas,pci-r8a7744 # RZ/G1N
+ - renesas,pci-r8a7745 # RZ/G1E
+ - renesas,pci-r8a7790 # R-Car H2
+ - renesas,pci-r8a7791 # R-Car M2-W
+ - renesas,pci-r8a7793 # R-Car M2-N
+ - renesas,pci-r8a7794 # R-Car E2
+ - const: renesas,pci-rcar-gen2 # R-Car Gen2 and RZ/G1
+
+ reg:
+ items:
+ - description: Operational registers for the OHCI/EHCI controllers.
+ - description: Bridge configuration and control registers.
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Device clock
+
+ clock-names:
+ items:
+ - const: pclk
+
+ resets:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ bus-range:
+ description: |
+ The PCI bus number range; as this is a single bus, the range
+ should be specified as the same value twice.
+
+ dma-ranges:
+ description: |
+ A single range for the inbound memory region. If not supplied,
+ defaults to 1GiB at 0x40000000. Note there are hardware restrictions on
+ the allowed combinations of address and size.
+ maxItems: 1
+
+patternProperties:
+ 'usb@[0-1],0':
+ type: object
+
+ description:
+ This a USB controller PCI device
+
+ properties:
+ reg:
+ description:
+ Identify the correct bus, device and function number in the
+ form <bdf 0 0 0 0>.
+
+ items:
+ minItems: 5
+ maxItems: 5
+
+ phys:
+ description:
+ Reference to the USB phy
+ maxItems: 1
+
+ phy-names:
+ maxItems: 1
+
+ required:
+ - reg
+ - phys
+ - phy-names
+
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - interrupt-map
+ - interrupt-map-mask
+ - clocks
+ - resets
+ - power-domains
+ - bus-range
+ - "#address-cells"
+ - "#size-cells"
+ - "#interrupt-cells"
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
+ #include <dt-bindings/power/r8a7790-sysc.h>
+
+ pci@ee090000 {
+ compatible = "renesas,pci-r8a7790", "renesas,pci-rcar-gen2";
+ device_type = "pci";
+ reg = <0xee090000 0xc00>,
+ <0xee080000 0x1100>;
+ clocks = <&cpg CPG_MOD 703>;
+ power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+ resets = <&cpg 703>;
+ interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
+
+ bus-range = <0 0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+ ranges = <0x02000000 0 0xee080000 0xee080000 0 0x00010000>;
+ dma-ranges = <0x42000000 0 0x40000000 0x40000000 0 0x40000000>;
+ interrupt-map-mask = <0xf800 0 0 0x7>;
+ interrupt-map = <0x0000 0 0 1 &gic GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>,
+ <0x0800 0 0 1 &gic GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>,
+ <0x1000 0 0 2 &gic GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
+
+ usb@1,0 {
+ reg = <0x800 0 0 0 0>;
+ phys = <&usb0 0>;
+ phy-names = "usb";
+ };
+
+ usb@2,0 {
+ reg = <0x1000 0 0 0 0>;
+ phys = <&usb0 0>;
+ phy-names = "usb";
+ };
+ };
--
2.35.1


2022-04-26 07:12:30

by Rob Herring (Arm)

[permalink] [raw]
Subject: Re: [PATCH v3 1/8] dt-bindings: PCI: pci-rcar-gen2: Convert bindings to json-schema

On Mon, Apr 25, 2022 at 7:45 PM Rob Herring <[email protected]> wrote:
>
> On Fri, Apr 22, 2022 at 02:08:43PM +0200, Herve Codina wrote:
> > Convert Renesas PCI bridge bindings documentation to json-schema.
> >
> > Signed-off-by: Herve Codina <[email protected]>
> > ---
> > .../devicetree/bindings/pci/pci-rcar-gen2.txt | 84 ----------
> > .../bindings/pci/renesas,pci-rcar-gen2.yaml | 156 ++++++++++++++++++
> > 2 files changed, 156 insertions(+), 84 deletions(-)
> > delete mode 100644 Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
> > create mode 100644 Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
>
> > diff --git a/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml b/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
> > new file mode 100644
> > index 000000000000..494eb975c146
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
> > @@ -0,0 +1,156 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/pci/renesas,pci-rcar-gen2.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Renesas AHB to PCI bridge
> > +
> > +maintainers:
> > + - Marek Vasut <[email protected]>
> > + - Yoshihiro Shimoda <[email protected]>
> > +
> > +description: |
> > + This is the bridge used internally to connect the USB controllers to the
> > + AHB. There is one bridge instance per USB port connected to the internal
> > + OHCI and EHCI controllers.
> > +
> > +allOf:
> > + - $ref: /schemas/pci/pci-bus.yaml#
> > +
> > +properties:
> > + compatible:
> > + oneOf:
> > + - items:
>
> Don't need oneOf with only 1 entry. Otherwise,

Nevermind, I see you need it in the next patch.

>
> Reviewed-by: Rob Herring <[email protected]>
>
> > + - enum:
> > + - renesas,pci-r8a7742 # RZ/G1H
> > + - renesas,pci-r8a7743 # RZ/G1M
> > + - renesas,pci-r8a7744 # RZ/G1N
> > + - renesas,pci-r8a7745 # RZ/G1E
> > + - renesas,pci-r8a7790 # R-Car H2
> > + - renesas,pci-r8a7791 # R-Car M2-W
> > + - renesas,pci-r8a7793 # R-Car M2-N
> > + - renesas,pci-r8a7794 # R-Car E2
> > + - const: renesas,pci-rcar-gen2 # R-Car Gen2 and RZ/G1
> > +

2022-04-26 08:55:55

by Rob Herring (Arm)

[permalink] [raw]
Subject: Re: [PATCH v3 1/8] dt-bindings: PCI: pci-rcar-gen2: Convert bindings to json-schema

On Fri, Apr 22, 2022 at 02:08:43PM +0200, Herve Codina wrote:
> Convert Renesas PCI bridge bindings documentation to json-schema.
>
> Signed-off-by: Herve Codina <[email protected]>
> ---
> .../devicetree/bindings/pci/pci-rcar-gen2.txt | 84 ----------
> .../bindings/pci/renesas,pci-rcar-gen2.yaml | 156 ++++++++++++++++++
> 2 files changed, 156 insertions(+), 84 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
> create mode 100644 Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml

> diff --git a/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml b/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
> new file mode 100644
> index 000000000000..494eb975c146
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
> @@ -0,0 +1,156 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pci/renesas,pci-rcar-gen2.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Renesas AHB to PCI bridge
> +
> +maintainers:
> + - Marek Vasut <[email protected]>
> + - Yoshihiro Shimoda <[email protected]>
> +
> +description: |
> + This is the bridge used internally to connect the USB controllers to the
> + AHB. There is one bridge instance per USB port connected to the internal
> + OHCI and EHCI controllers.
> +
> +allOf:
> + - $ref: /schemas/pci/pci-bus.yaml#
> +
> +properties:
> + compatible:
> + oneOf:
> + - items:

Don't need oneOf with only 1 entry. Otherwise,

Reviewed-by: Rob Herring <[email protected]>

> + - enum:
> + - renesas,pci-r8a7742 # RZ/G1H
> + - renesas,pci-r8a7743 # RZ/G1M
> + - renesas,pci-r8a7744 # RZ/G1N
> + - renesas,pci-r8a7745 # RZ/G1E
> + - renesas,pci-r8a7790 # R-Car H2
> + - renesas,pci-r8a7791 # R-Car M2-W
> + - renesas,pci-r8a7793 # R-Car M2-N
> + - renesas,pci-r8a7794 # R-Car E2
> + - const: renesas,pci-rcar-gen2 # R-Car Gen2 and RZ/G1
> +

2022-04-27 15:33:03

by Geert Uytterhoeven

[permalink] [raw]
Subject: Re: [PATCH v3 1/8] dt-bindings: PCI: pci-rcar-gen2: Convert bindings to json-schema

On Fri, Apr 22, 2022 at 2:09 PM Herve Codina <[email protected]> wrote:
> Convert Renesas PCI bridge bindings documentation to json-schema.
>
> Signed-off-by: Herve Codina <[email protected]>

Reviewed-by: Geert Uytterhoeven <[email protected]>

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds